Tokushima University / Educator and Researcher Directory --- Ishida, Tohru

Personal Web Page

https://researchmap.jp/read0191080 (researchmap)

Field of Study

○	生産加工学
○	生産加工学
○	生産加工学
○	生産加工学

Subject of Study

○	曲がり穴放電加工システムの開発
○	断面変化穴放電加工システムの開発
○	穴内面穴放電加工システムの開発
○	超小型自律制御放電加工機構の開発

Book / Paper

Book:

1.	Tohru Ishida : 機械実用便覧改訂第7版第1章(分担共著), Japan Society of Mechanical Engineers, Tokyo, Dec. 2011.

Academic Paper (Judged Full Paper):

1.	Tappei Oyamada, Akira Mizobuchi and Tohru Ishida : Effects of Bit Shape of Electroplated Diamond Tool Used for Drilling Small Diameter Holes in Glass Plate on Machining Fluid Flow and Chip Discharge, International Journal of Automation Technology (IJAT), Vol.17, No.1, 32-39, 2023. (Summary) Our laboratory has been exploring the development of tools for drilling holes in glass plates, and the drilling techniques to be adopted for it. A devised tool shape that could prevent the occurrence of cracks at the exit holes achieved high quality through hole drilling of 100 holes or more using only the drilling cycle. However, crack-free drilling beyond this number of holes cannot be performed. This is due to the adhesion of the residual chip on the tool surface when the number of holes increases. Therefore, further improvement of chip discharge is needed to achieve crack-free drilling. In this report, we consider that chip discharge results from the flow of the machining fluid. To investigate the cause of chip discharge, we analyzed the flow of the machining fluid in the hole using computational fluid dynamics and the supposed chip discharge conditions. The results obtained in this study are summarized as follows. (1) In the case of a cylindrical tool, the Z-axis directional flow of the machining fluid did not occur in the hole. This is because the tool does not have bumps to agitate the fluid on the side, and the gap between the tool and the inner surface of the hole is narrow. (2) The plate side widened the gap between the tool and inner surface of the hole. Therefore, the fluid was likely to flow in the Z-axis direction in the hole. (3) For the tool with the plane side bit, the flow entered the hole from one plane side and exited the hole from the other plane side. (4) When the tool end is spherical, the Z-axis directional flow of the fluid occurs at the tool end. (5) The fluid flow of the devised tool weakened as the drilling depth increased. To improve the chip discharge performance of the designed tool, the Z-axis directional flow of the machining fluid must occur in an area deeper than 2 mm. (Tokushima University Institutional Repository) ● Metadata: 118830 (Link to Publication Site) ● Publication site (DOI): 10.20965/ijat.2023.p0032 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.20965/ijat.2023.p0032 (Tokushima University Institutional Repository: 118830, DOI: 10.20965/ijat.2023.p0032)
2.	Akira Mizobuchi, Hamada Takeshi, Tashima Atsuyoshi, Horimoto Keita and Tohru Ishida : Polishing Performance of a Recycled Grinding Wheel Using Grinding Wheel Scraps for the Wet Polishing of Stainless-Steel Sheets, International Journal of Automation Technology (IJAT), Vol.16, No.1, 60-70, 2022. (Summary) The surfaces of large austenitic stainless-steel sheets, which have side lengths of at least 1 m a sheet thickness of at least 6 mm, used for food tanks and sliding plates in seismic isolation devices, must be finished to a mirror surface. Polishing is performed to improve the surface quality of such sheets and dry machining is typically applied. The problems associated with dry machining are the exhaust heat of machining and treatment of chips. A transition to wet machining is required to solve these problems. In our laboratory, we have developed a wet polishing machine and researched the selection of grinding wheels to develop wet polishing technology for large stainless-steel sheets. In this study, to reduce tool cost and reuse resources, we attempted to manufacture a recycled grinding wheel using snippets of grinding wheel scraps. A polyvinyl alcohol (PVA) aqueous solution was used as the bonding agent for the recycled grinding wheel to reduce environmental load. To overcome the ease of dissolution of PVA in water, we attempted to improve the water resistance of the PVA aqueous solution by incorporating an organic titanium compound. This is one of our efforts to contribute to sustainable development goals. The results are summarized below. (1) A recycled grinding wheel was fabricated by kneading crushed pieces of grinding wheel scrap with a bonding agent. (2) The maintenance of the shape of the recycled grinding wheel was controlled by the concentration of the bonding agent. (3) The recycled grinding wheel with a PVA bonding agent was vulnerable to water. In contrast, the recycled grinding wheel to which the organic titanium compound was added exhibited improved water resistance. (4) The polishing of stainless-steel sheets using the plain PVA recycled wheel was relatively ineffective, but polishing using the recycled wheel with the titanium additive was comparable to polishing with a new grinding wheel. (Tokushima University Institutional Repository) ● Metadata: 116995 (Link to Publication Site) ● Publication site (DOI): 10.20965/ijat.2022.p0060 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390290625846289792 ● Summary page in Scopus @ Elsevier: 2-s2.0-85123520718 (Tokushima University Institutional Repository: 116995, DOI: 10.20965/ijat.2022.p0060, CiNii: 1390290625846289792, Elsevier: Scopus)
3.	M.S.A. Aziz, Akira Mizobuchi, R. Izamshah, M.S. Kasim, E. Mohamad, M.R. Salleh and Tohru Ishida : Helical Micro-Hole Drilling of Chemically Strengthened Glass Using Capsule-shaped Electroplated Diamond Tool, Journal of Advanced Manufacturing Technology, Vol.13, No.2, 2019. (Summary) This study investigates the microhole drilling performance of chemically strengthened glass plate by using a capsuleshaped electroplated diamond tool and the helical drilling method. Three different helical pitch conditions were tested to drill holes with a diameter of 1 mm. The number of drilled holes, grinding force, and maximum crack size were measured along with the observation of the drilled holes to evaluate the performance of the microhole drilling. From the experimental results, it was found that as the size of helical pitch decreased, the number of drilled holes increases where the average grinding force generated becomes smaller. By using small helical pitch condition, 43 holes could be drilled but the maximum crack size generated at the outlet side of the drilled hole is not able to achieve the highgrade quality compared to the inlet side. The resultant grinding force generated when the tool tip nearing the outlet side of the glass plate has caused the large crack at a certain position on the outlet side. (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85074904147 (Elsevier: Scopus)
4.	Chao Chen, Shuqin Fan, Xiaolan Han, Shengdun Zhao, Minchao Cui and Tohru Ishida : Experimental Research on the Compressed Joints with Different Geometrical Parameters, Proceedings of the Institution of Mechanical Engineers. Part B, Journal of Engineering Manufacture, Vol.233, No.1, 174-181, 2019. (Link to Publication Site) ● Publication site (DOI): 10.1177/0954405417711735 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85045066161 (DOI: 10.1177/0954405417711735, Elsevier: Scopus)
5.	Chao Chen, Tohru Ishida, Yongfei Wang, Shengdun Zhao and Xiaolan Han : Numerical and Experimental Investigations of the Two-Step Clinching Process with a Bumped Die, Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol.12, No.6, 1-11, 2018. (Link to Publication Site) ● Publication site (DOI): 10.1299/jamdsm.2018jamdsm0109 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85055816780 (DOI: 10.1299/jamdsm.2018jamdsm0109, Elsevier: Scopus)
6.	Akira Mizobuchi, Aziz Sanusi Abdul Mohd, Izamshah Raja and Tohru Ishida : Chip Discharge Performance of Micro-hole Drilling through a Glass Plate using an Electroplated Diamond Tool with Different Drill Bits, International Journal of Precision Engineering and Manufacturing, Vol.19, No.9, 1273-1280, 2018. (Summary) This research aims to identify a high-quality, efficient, and low-cost micro-hole drilling process through glass plates that employs an electroplated diamond tool with different drill bits. Three different drill bits were tested to determine how varying the chip discharge volume influences chip discharge performance, which is an important factor that affects the effectiveness of the drilling process. The chip discharge performance of each electroplated diamond tool was experimentally investigated by observing the drilling quality and the number of the drilled holes. From the experimental results, it was found that the drilled chips could not discharge smoothly when the drill bit possesses a small chip discharge volume, leading to the drill bit breaking, which thus limits the number of drilled holes. Furthermore, the changes in thrust force and the crack size were high, and there were also cracks on the drilled glass plate. However, drilling with a drill bit that possesses a larger chip discharge volume resulted in excellent chip discharge performance and increased the number of drilled holes. This type of drill bit is effective in drilling holes through glass plates, with minimum hole defects and no issues associated with chips clogging the hole during drilling. (Link to Publication Site) ● Publication site (DOI): 10.1007/s12541-018-0151-7 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/s12541-018-0151-7 (DOI: 10.1007/s12541-018-0151-7)
7.	Kota Honda, Akira Mizobuchi and Tohru Ishida : Prevention of chip adhesion by acting non-ionic surfactant physical properties, Journal of the Japan Society for Abrasive Technology, Vol.62, No.6, 324-329, 2018. (Summary) 穴加工において，切りくずは穴内に残留しやすく，工具に付着しやすい状況にある.本研究室では先端部を半球形状とした円筒形ダイヤモンド電着工具の側面の一部を削り取り，ここが切りくず排出の役割を担うストレート面付き工具を開発した.この工具は，加工中に生成される切りくずを効率的に排出し，工具への切りくず付着を抑えていた.しかし，少量の切りくずが穴内に残留し，加工穴数の増加に伴い，切りくず排出領域に付着した.本研究は加工液に含有する界面活性剤の物性に着目し，この物性が切りくず付着に及ぼす影響について検討した. (Link to Publication Site) ● Publication site (DOI): 10.11420/jsat.62.324 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390564238049483520 ● Search Scopus @ Elsevier (DOI): 10.11420/jsat.62.324 (DOI: 10.11420/jsat.62.324, CiNii: 1390564238049483520)
8.	Chao Chen, Xiaolan Han, Shengdun Zhao, Fan Xu, Xuzhe Zhao and Tohru Ishida : Influence of Sheet Thickness on Mechanical Clinch-Compress Joining Technology, Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, Vol.232, No.6, 662-673, 2018. (Link to Publication Site) ● Publication site (DOI): 10.1177/0954408917735717 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1177/0954408917735717 (DOI: 10.1177/0954408917735717)
9.	Chao Chen, Xiaolan Han, Shengdun Zhao, Fan Xu, Xuzhe Zhao and Tohru Ishida : Comparative Study on Two Compressing Methods of Clinched Joints with Dissimilar Aluminum Alloy Sheets, The International Journal of Advanced Manufacturing Technology, Vol.93, No.5-8, 1929-1937, 2017. (Link to Publication Site) ● Publication site (DOI): 10.1007/s00170-017-0650-1 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/s00170-017-0650-1 (DOI: 10.1007/s00170-017-0650-1)
10.	Akira Mizobuchi, Kota Honda and Tohru Ishida : Improved Chip Discharge in Drilling of Glass Plate Using Back Tapered Electroplated Diamond Tool, International Journal of Precision Engineering and Manufacturing, Vol.18, No.9, 1197-1204, 2017. (Summary) Previous studies of a through-hole drilling for hard and brittle materials using electroplated diamond tool devised by the authors have led to several challenges such as a restraint of crack size at the inlet and outside, a suppression of chip adhesion on the tool and an improvement of processing efficiency. In this paper, the devised tool was redesigned in order to restrain cracks of the inlet side as well as to improve the chip discharge. The new design of the tool featured a back taper which was expected to bring an effect of restraining crack size by preventing any interference between the tool cylindrical surface and the hole inner surface during drilling process. In addition, the chip can be discharged from the drilled hole through the back taper. Results of the experiment indicated that by providing the back tapered shape, the width of the inlet hole can be reduced slightly as the interference between the glass plate and the tool cylindrical surface was suppressed. Furthermore, the adhesion of chip on tool can be restrained by using the tool with large chip discharge space as the chip was easily discharged to the outside of the hole. Moreover, an abrupt change in thrust force was not detected, and the crack width was found in small size. (Link to Publication Site) ● Publication site (DOI): 10.1007/s12541-017-0140-2 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/s12541-017-0140-2 (DOI: 10.1007/s12541-017-0140-2)
11.	Chao Chen, Shengdun Zhao, Xiaolan Han, Xuzhe Zhao and Tohru Ishida : Experimental Investigation on the Joining of Aluminum Alloy Sheets Using Improved Clinching Process, Materials, Vol.10, No.887, 1-14, 2017. (Summary) Aluminum alloy sheets have been widely used to build the thin-walled structures by mechanical clinching technology in recent years. However, there is an exterior protrusion located on the lower sheet and a pit on the upper sheet, which may restrict the application of the clinching technology in visible areas. In the present study, an improved clinched joint used to join aluminum alloy sheets was investigated by experimental method. The improved clinching process used for joining aluminum alloy evolves through four phases: (a) localized deformation; (b) drawing; (c) backward extrusion; and (d) mechanical interlock forming. A flat surface can be produced using the improved clinching process. Shearing strength, tensile strength, material flow, main geometrical parameters, and failure mode of the improved clinched joint were investigated. The sheet material was compressed to flow radially and upward using a punch, which generated a mechanical interlock by producing severe localized plastic deformation. The neck thickness and interlock of the improved clinched joint were increased by increasing the forming force, which also contributed to increase the strength of the clinched joint. The improved clinched joint can get high shearing strength and tensile strength. Three main failure modes were observed in the failure process, which were neck fracture mode, button separation mode, and mixed failure mode. The improved clinched joint has better joining quality to join aluminum alloy sheets on the thin-walled structures. (Tokushima University Institutional Repository) ● Metadata: 115589 (Link to Publication Site) ● Publication site (DOI): 10.3390/ma10080887 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 28763027 ● Search Scopus @ Elsevier (PMID): 28763027 ● Search Scopus @ Elsevier (DOI): 10.3390/ma10080887 (Tokushima University Institutional Repository: 115589, DOI: 10.3390/ma10080887, PubMed: 28763027)
12.	Kota Honda, Akira Mizobuchi and Tohru Ishida : Investigation of Grinding Fluid for Prevention of Chip Adhesion in Miniature Drilling of Glass Plate Using Electroplated Diamond Tool, Key Engineering Materials, Vol.749, 52-57, 2017. (Link to Publication Site) ● Publication site (DOI): 10.4028/www.scientific.net/KEM.749.52 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85028732508 (DOI: 10.4028/www.scientific.net/KEM.749.52, Elsevier: Scopus)
13.	Chao Chen, Shuqin Fan, Xiaolan Han, Shengdun Zhao, Minchao Cui and Tohru Ishida : Experimental Study on the Height-Reduced Joints to Increase the Cross-Tensile Strength, The International Journal of Advanced Manufacturing Technology, Vol.91, No.5-8, 2655-2662, 2017. (Link to Publication Site) ● Publication site (DOI): 10.1007/s00170-016-9939-8 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/s00170-016-9939-8 (DOI: 10.1007/s00170-016-9939-8)
14.	Aziz Sanusi Abdul Mohd, Redzuwan Ikram Bahrin, Zaimi Muhammad, Izamshah Raja, Kasim Shahir Mohd, Ali Amran Md Mohd, Akira Mizobuchi and Tohru Ishida : Mechanical Properties and Cutting Performance of Electroless Ternary Ni-W-P Coated Cutting Tools, Jurnal Teknologi, Vol.76, No.5-2, 101-104, 2017. (Link to Publication Site) ● Publication site (DOI): 10.11113/jt.v79.11291 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.11113/jt.v79.11291 (DOI: 10.11113/jt.v79.11291)
15.	Chao Chen, Shengdun Zhao, Minchao Cui, Xiaolan Han, Xuzhe Zhao and Tohru Ishida : Effects of Geometrical Parameters on the Strength and Energy Absorption of the Height-Reduced Joint, The International Journal of Advanced Manufacturing Technology, Vol.90, No.9-12, 3533-3541, 2017. (Link to Publication Site) ● Publication site (DOI): 10.1007/s00170-016-9619-8 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/s00170-016-9619-8 (DOI: 10.1007/s00170-016-9619-8)
16.	Chao Chen, Shengdun Zhao, Xiaolan Han, Minchao Cui, Xuzhe Zhao and Tohru Ishida : Experimental Investigation of the Mechanical Reshaping Process for Joining Aluminum Alloy Sheets with Different Thicknesses, Journal of Manufacturing Processes, Vol.26, 105-112, 2017. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jmapro.2017.01.015 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.jmapro.2017.01.015 (DOI: 10.1016/j.jmapro.2017.01.015)
17.	Chao Chen, Shengdun Zhao, Minchao Cui, Xiaolan Han, Shuqin Fan and Tohru Ishida : An Experimental Study on the Compressing Process for Joining Al6061 Sheets, Thin-Walled Structures, Vol.108, 56-63, 2016. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.tws.2016.08.007 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.tws.2016.08.007 (DOI: 10.1016/j.tws.2016.08.007)
18.	Akira Mizobuchi, Yuki Kagawa and Tohru Ishida : Miniature Drilling of Chemically Strengthened Glass Plate Using Electroplated Diamond Tool, International Journal of Automation Technology (IJAT), Vol.10, No.5, 780-785, 2016. (Summary) It is well known that chemically strengthened glass plate has excellent strength and hardness properties. These characteristic properties are advantageous for the touch screens used in mobile devices. However, they are detrimental to the process of machining the glass plate. For example, chipping and crack occur around the inlet and outlet of the drilled hole, and the rate of tool wear is significant. Therefore, the surface quality and machining efficiency are low. The drilling process is extremely difficult. In this study, we de- scribe the use of a miniature drilling method to achieve high-quality drilled holes in chemically strengthened glass plate using an electroplated diamond tool with a diameter of 1 mm or less. Using the developed tool with a diameter of 0.5 mm, it is demonstrated that the conventional drilling method can be used to drill a through-hole in the glass plate. (Link to Publication Site) ● Publication site (DOI): 10.20965/ijat.2016.p0780 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84988920602 (DOI: 10.20965/ijat.2016.p0780, Elsevier: Scopus)
19.	Tohru Ishida, Yuichi Okahara, Masahiko Kita, Akira Mizobuchi, Keiichi Nakamoto and Yoshimi Takeuchi : Fundamental Study on Hole Fabrication inside a Hole by Means of Electrical Discharge Machining, International Journal of Automation Technology (IJAT), Vol.8, No.5, 773-782, 2014. (Link to Publication Site) ● Publication site (DOI): 10.20965/ijat.2014.p0773 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84906978498 (DOI: 10.20965/ijat.2014.p0773, Elsevier: Scopus)
20.	Akira Mizobuchi, Izumi Tada and Tohru Ishida : Development of electroplated diamond tool for fracture size minimization in miniature drilling of glass plate, Journal of the Japan Society for Abrasive Technology, Vol.58, No.5, 321-327, 2014. (Summary) To minimize fracture size in through-hole drilling of glass plate, this paper examines drilling behavior of commercial tool shape, as well as the availability of a tool shape designed by the authors. The chipping size occurring at the hole edge is related to the form of tool end and the chip elimination efficiency. The designed tool, which is an electroplated diamond tool with a diameter of 1 mm, has a unique shape. The tool shape has a hemispherical tool end and a few straight planes. During drilling, the hole enlarges gradually due to the hemispherical shape of the tool end. The occurrence of chipping at the edge of the exit hole is reduced because the hemispherical shape can reduce the abrupt decrease in drilling force. That is, large chipping and cracking corresponding to the hole diameter can be suppressed. In addition, the straight planes play a role in eliminating chipping, and the adhesion of chips is suppressed. The results of this investigate indicate that the designed tool allows drilling of drilling cycle. (Keyword) electroplated diamond tool / miniature drilling / through-hole / chip removal / chipping-less / glass plate (Link to Publication Site) ● Publication site (DOI): 10.11420/jsat.58.321 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204334324224 ● Search Scopus @ Elsevier (DOI): 10.11420/jsat.58.321 (DOI: 10.11420/jsat.58.321, CiNii: 1390001204334324224)
21.	Akira Mizobuchi, Masahiro Masuda, Teruo Nogami, Hitoshi Ogawa and Tohru Ishida : Restraint of Thermal Crack on Rake Face of Cermet Tool in Intermittent Cutting, International Journal of Automation Technology (IJAT), Vol.7, No.3, 263-269, 2013. (Link to Publication Site) ● Publication site (DOI): 10.20965/ijat.2013.p0263 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84877099670 (DOI: 10.20965/ijat.2013.p0263, Elsevier: Scopus)
22.	夏目矩行, 中本圭一, Tohru Ishida and 竹内芳美 : スクエアエンドミルを用いた同時5軸制御加工による中仕上げ加工の高効率化, Transactions of The Japan Society of Mechanical Engineers, Series C, Vol.78, No.793, 3305-3316, 2012. (Summary) In recent years, efficient production by use of CAD/CAM systems draws attention due to the demand of high-variety low-volume. Semi-finishing by square end mill has some problem than finish cutting by ball end mill. However five-axis controll machining with square end mill is more difficult due to the various cusp height and the possibility of the tool gouging. This study aim at proposing a tool path generation method for five-axis controll semi-finishing with square end mill. The method can decide the position and the posture of square end mill without the interference and generate the tool path, which enables to decrease the machining time in consideration of the cusp height. (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaic.78.3305 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001206386506752 ● Search Scopus @ Elsevier (DOI): 10.1299/kikaic.78.3305 (DOI: 10.1299/kikaic.78.3305, CiNii: 1390001206386506752)
23.	唐辛鋭, 中本圭一, 小畠一志, Tohru Ishida and 竹内芳美 : Effect of Cutting Point Swivel Machining by Using Tool with Special Chamfer, Journal of the Japan Society for Precision Engineering, Vol.78, No.8, 705-709, 2012. (Summary) Recently, in accordance with the technical development and miniaturization of the information equipments, the demand of optic elements with high precision and miniaturization is increased. The mold is used in the manufacture of the optic elements. Thus, it is needed to machine the mold with high efficiency and high precision. As the material of mold, hard material including cemented carbide and ceramics is used. However, it is a problem of the occurrence of severe tool wear when hard material is machined. To solve this problem, cutting point swivel machining by using the diamond tool with special chamfer was proposed, which has the ability to suppress tool wear and to realize ultraprecision machining. The effectiveness was verified by the microgrooving experiment of SiC. The study aims at investigating the effect of the cutting point swivel machining, and the cutting force and tool wear with different tool rotation speed. As a result, the effect of the cutting point swivel machining is made clear, and the relationship among tool rotation speed, cutting force and tool wear is known. (Keyword) cutting point swivel machining / ultraprecision microgrooving / hard material / diamond tool with special chamfer / tool wear / tool rotation speed / cutting force (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.78.705 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204798208640 ● Summary page in Scopus @ Elsevier: 2-s2.0-84865361790 (DOI: 10.2493/jjspe.78.705, CiNii: 1390001204798208640, Elsevier: Scopus)
24.	西山諒, 中本圭一, Tohru Ishida and 竹内芳美 : マイクロ複雑形状の超精密巧妙加工, Transactions of The Japan Society of Mechanical Engineers, Series C, Vol.78, No.792, 3085-3092, 2012. (Summary) Corresponding to diverse consumer needs, high-mix and low-volume production is becoming more important. Unique products matching consumer's sensitiveness tend to be welcome. These products will be something like art and craft products, which require skill and experience to create. This study deals with 5-axis control tool path generation to dexterously and efficiently create such craft-like microshapes, while maintaining the quality. Concerning 5-axis control machining, the way of using ball end mills is generally employed. However, it needs a lot of time to get high quality surface. To solve this problem, a side cutting edge of the ball end mill is positively utilized with its tool axis parallel to the ruled surface. Therefore, a new CAM system is developed to detect the surface to be machined with the side cutting edge, and to generate the collision-free tool paths between the tool and the workpiece. The effectiveness of the developed CAM system is experimentally confirmed by creating a tiny Möbius ring. (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaic.78.3085 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282681363234560 ● Search Scopus @ Elsevier (DOI): 10.1299/kikaic.78.3085 (DOI: 10.1299/kikaic.78.3085, CiNii: 1390282681363234560)
25.	濱田大地, 中本圭一, Tohru Ishida and 竹内芳美 : 複合加工機用CAPPシステムの開発, Transactions of The Japan Society of Mechanical Engineers, Series C, Vol.78, No.791, 2698-2709, 2012. (Summary) Multi-tasking machine tool has a variety of machining functions, which may lead to the reduction in machining time and the machining with high quality, and they have the growing availability. On the other hand, the use of multi-tasking machine tool causes the long process planning due to the functional complexity. There are some CAM systems for multi-tasking machine tool, however they need long working time caused by the mannual allocation of parts to generate tool paths. Therefore, the study proposes the rationalization of the process planning by extracting the machining feature in consideratinf with turning and milling from targeted shape to be machined and by selecting suitable machining method and scheduling machining order automatically. As a result, it is expected to reduce the working time on CAM system, using output data by proposed system. Applying the system to several product shapes containig both turning feature and milling feature, it is confirmmed that NC data can be obtained for each shape without any problem. (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaic.78.2698 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001206388366080 ● Search Scopus @ Elsevier (DOI): 10.1299/kikaic.78.2698 (DOI: 10.1299/kikaic.78.2698, CiNii: 1390001206388366080)
26.	夏目矩行, 中本圭一, Tohru Ishida and 竹内芳美 : Dexterous Machining of Complicated Shape Consisting of Several Bended Columns, Transactions of The Japan Society of Mechanical Engineers, Series C, Vol.78, No.786, 697-706, 2012. (Summary) In recent years, manufacturing industries are facing severe competition to achieve products with high quality and low price. It is important to establish a new approach of creating value-added products like objects of craftwork or applied arts, different from traditional way of achieving products with high quality and low price. Manufacturing such value-added products generally needs skill and experience of experts. Thus, the objective of the study is to develop a CAM system for a multi-tasking machine in order to create value-added products, while converting implicit knowledge of experts into a formal knowledge. This kind of manufacturing way is named "Dexterous machining". The study deals with the CAM system to create a complicated shape consisting of bended columns as "Dexterous machining". The CAM system developed in the study can generate the tool path for rough cutting and finishing cutting in consideration of interference avoidance. The effectiveness of the CAM system is confirmed by demonstrating two kinds of bended columns by use of a multi-tasking machine. (Keyword) Dexterous Machining / Multi-Tasking Machine / Process Planning / CAM / Bended Column (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaic.78.697 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282681365118208 ● Summary page in Scopus @ Elsevier: 2-s2.0-84859567439 (DOI: 10.1299/kikaic.78.697, CiNii: 1390282681365118208, Elsevier: Scopus)
27.	長谷川浩二, 中本圭一, Tohru Ishida and 竹内芳美 : Highly Accurate Molding Die Machining by Reconstruction of NC Data, Journal of the Japan Society for Precision Engineering, Vol.77, No.10, 950-954, 2011. (Summary) NC commands are generated by CAM systems to realize high speed and high accuracy machining. At the time, the feed rate in most of NC data may be set to be constant in machining any workpiece shapes. In addition, NC data do not necessarily reflect the workpiece shape correctly due to the variation in the coordinate point values calculated by CAM systems. It causes the reduction in the machined surface quality. The shape recognition in the tool feed direction on the basis of NC data has already been devised. Thus, the study enables 3-D shape recognition to be identified from NC data in the pick feed direction as well as those in the feed direction. After the identification, the feed rate can be controlled according to the identified shape information. The system developed in the study can detect the distinguishing points from the coordinate information in NC data. Then, the points are arranged to generate the smooth tool motion and to control the feed rate for the identified workpiece shape. From experimental result, it is confirmed that the machined surface quality is successfully improved and the machining time is also reduced. (Keyword) shape recognition / point arrangement / feedrate control / high speed and high accuracy machining / die machining (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.77.950 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679772662912 ● Summary page in Scopus @ Elsevier: 2-s2.0-80855141598 (DOI: 10.2493/jjspe.77.950, CiNii: 1390282679772662912, Elsevier: Scopus)
28.	三澤悠人, 中本圭一, Tohru Ishida and 竹内芳美 : Creation of Microgroove with Two Flat-ends for Hard Materials, Journal of the Japan Society for Precision Engineering, Vol.77, No.10, 939-943, 2011. (Summary) High performance and miniaturization are strongly demanded for optical elements and precision parts, where microgrooves play an important role. A non-rotational cutting tool is one of machining means to create microgrooves. However, even non-rotational cutting tool forms slopes at the cutting start and end points, which deteriorate the optical performance. In optical elements and precision parts, the creation of two flat-ends microgroove is expected, where two flat-ends microgrooves mean microgrooves having no slopes at the cutting start and end points. The method to create two flat-ends microgroove has already been devised and applied for soft materials, not for hard materials. In the study, a new method is proposed to create straight and curved microgrooves with two flat-ends for hard materials by indenting and feeding a non-rotational cutting tool. From experimental results, it is found that the proposed method has the potential of creating two flat-ends microgrooves for hard materials. (Keyword) ultraprecision micro machining / microgroove / two flat-ends / hard materials / non-rotational cutting tool (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.77.939 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204795954560 ● Summary page in Scopus @ Elsevier: 2-s2.0-80855124763 (DOI: 10.2493/jjspe.77.939, CiNii: 1390001204795954560, Elsevier: Scopus)
29.	Keiichi Nakamoto, Tohru Ishida, Norikazu Kitamura and Yoshimi Takeuchi : Fabrication of Microinducer by 5-axis Control Ultraprecision Micromilling, CIRP Annals - Manufacturing Technology, Vol.60, No.1, 407-410, 2011. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.cirp.2011.03.021 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.cirp.2011.03.021 (DOI: 10.1016/j.cirp.2011.03.021)
30.	濱田大地, 中本圭一, Tohru Ishida and 竹内芳美 : 入れ子を有する複雑形状の巧妙加工, Transactions of The Japan Society of Mechanical Engineers, Series C, Vol.77, No.780, 3127-3136, 2011. (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaic.77.3127 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84859589882 (DOI: 10.1299/kikaic.77.3127, Elsevier: Scopus)
31.	引地達哉, 中本圭一, Tohru Ishida and 竹内芳美 : 工具姿勢と姿勢変化の影響を考慮した5軸制御CAMシステムの開発, Journal of the Japan Society for Precision Engineering, Vol.77, No.8, 766-770, 2011. (Keyword) 5-axis control machining / CAM / tool path / tool attitude / rotational axis / machined surface (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.77.766 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520290883507495040 ● Summary page in Scopus @ Elsevier: 2-s2.0-80052099950 (DOI: 10.2493/jjspe.77.766, CiNii: 1520290883507495040, Elsevier: Scopus)
32.	北正彦, Tohru Ishida, 寺本孝司 and 竹内芳美 : 曲がり穴放電加工用極間距離自動制御機構の設計法に関する研究, Journal of the Japan Society for Precision Engineering, Vol.77, No.4, 411-416, 2011. (Summary) This study deals with the design method of automatic discharge gap controller (ADGC) installed on a microrobot which can create long, complicated curved holes by means of electrical discharge machining (EDM). The microrobot has to make a curved hole by both performing stable EDM and moving along a curved trajectory in a workpiece. To realize the stable EDM, the microrobot must be equipped with a function in which its electrode is always kept in an appropriate position autonomously and automatically to maintain suitable discharge gap. The function is accomplished by ADGC. It was proven that ADGC has the ability of achieving the function. However, a design method of ADGC is not established since the relationship between the structures of ADGC, the movement of ADGC, and EDM conditions is not enough revealed. As a first step to solve this problem, this study proposes the ADGC design method based on a simple mathematical model of ADGC and develops a new measurement method to evaluate the performance of ADGC doing EDM. The results obtained in the verification experiments using the measurement method show that the ADGC design method proposed is effective. (Keyword) electrical discharge machining / curved hole / automatic discharge gap controller / shape memory alloy / mathematical model / design / electrical discharge machining / curved hole / automatic discharge gap controller / shape memory alloy / mathematical model / design (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.77.411 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679774260352 ● Summary page in Scopus @ Elsevier: 2-s2.0-79955372724 (DOI: 10.2493/jjspe.77.411, CiNii: 1390282679774260352, Elsevier: Scopus)
33.	長谷川浩二, 中本圭一, Tohru Ishida and 竹内芳美 : 5軸制御多数穴あけ加工の効率化, Journal of the Japan Society for Precision Engineering, Vol.77, No.1, 121-125, 2011. (Summary) In case of drilling for a large number of holes, the total process time is composed of the sum of the movement time between a hole and another, and the sum of the drilling time of holes. The former time depends on the drilling order although the latter time is constant. Thus, the difficulty increases with increasing the number of holes in deciding the appropriate drilling order. In addition, it is required to avoid changes in the movement direction because the reverse movement causes the vibration and the degradation of machining accuracy. In this study, the decision problem of the drilling order for a large number of holes is treated as Traveling Salesman Problem. By considering influence of the change in the tool posture, the movement time and the number of the reverse movement are selected as the objective function. In order to optimize the objective function, Simulated Annealing and Genetic Algorithm are applied in the study. As the result of conducting drilling simulation, it is found that SA is superior to GA in this study. The sum of the movement time is reduced to 1/3 by SA, compared to the conventional method. It is also confirmed that the number of the reverse movement is reduced to 3/4 of the conventional method. (Keyword) 5-axis control drilling / drilling order / Traveling Salesman Problem / Simulated Annealing / Genetic Algorithm / 5-axis control drilling / drilling order / Traveling Salesman Problem / Simulated Annealing / Genetic Algorithm (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.77.121 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204798345216 ● Summary page in Scopus @ Elsevier: 2-s2.0-79951587600 (DOI: 10.2493/jjspe.77.121, CiNii: 1390001204798345216, Elsevier: Scopus)
34.	小泉武久, 中本圭一, Tohru Ishida and 竹内芳美 : 領域分割に基づく5軸加工用工具経路生成法, Transactions of The Japan Society of Mechanical Engineers, Series C, Vol.76, No.772, 3814-3821, 2010. (Summary) In recent years, the efficient machining of workpieces with a complicated shape has being increased in terms of realizing the products with compact design and sufficient functionality. 5-axis control machining center is suitable to meet such a requirement. However, it is necessary to obtain adequate tool postures to avoid interference between the cutting tool and the workpiece while machining workpieses with complicated sculptured surface. This study deals with rapid tool path generation for 5-axis control machining to treat such complicated product shapes on the basis of a proposed method. For tool path generation, the product shape is divided into small area. Each divided area is subjected to interference check. This new CAM system can generate automatically interference-free NC data in 5-axis control machining. The validity of the developed system is demonstrated with machining simulation and experiment. (Keyword) 5-Axis Control Machining / Interference Avoidance / Tool Path Generation / CAM / NC / Machine Tool / Complicated Sculpture Surface (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205654488576 ● Summary page in Scopus @ Elsevier: 2-s2.0-79953166424 (CiNii: 1390001205654488576, Elsevier: Scopus)
35.	河口泰大, 中本圭一, Tohru Ishida and 竹内芳美 : 複合加工機による鎖形状の巧妙加工, Transactions of The Japan Society of Mechanical Engineers, Series C, Vol.76, No.771, 3112-3118, 2010. (Summary) In recent years, complicated shapes have been required to be machined at a shorter time. Machine tools have become highly accurate and had multifunction as well as the development of CAD/CAM systems. However, there exist a lot of things difficult or impossible to create even by multi-axis control CNC machine tools. Most of them are made by skilled persons of ingenuity and device. In the future, it is predicted that consumer needs are getting more various and that consumers require individual goods matching for their feeling. The study presents the first trial of creating an artistic workpiece by use of a multi-tasking machine tool. Such a machining technology may be called "Dexterous Machining". As an example, a chain-shaped workpieces are selected, which cannot usually be machined in the conventional manner. Thus, a special type CAM system is developed, taking account of the interference between a cutting tool and a workpiece, and by use of the second main spindle. As a result, it is found that the developed CAM system has the potential of realizing Dexterous Machining. (Keyword) Multi-Tasking Machine Tools / Turning / Milling / CAM / Process Planning / 5-Axis Control (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282681364803200 ● Summary page in Scopus @ Elsevier: 2-s2.0-79751506472 (CiNii: 1390282681364803200, Elsevier: Scopus)
36.	Masahiko Kita, Tohru Ishida and Yoshimi Takeuchi : Direct Measurement of Electrode Movement during Electrical Discharge Machining by Means of Automatic Discharge Gap Controller, International Journal of Automation Technology (IJAT), Vol.4, No.6, 552-561, 2010. (Link to Publication Site) ● Publication site (DOI): 10.20965/ijat.2010.p0552 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.20965/ijat.2010.p0552 (DOI: 10.20965/ijat.2010.p0552)
37.	Tohru Ishida and Yoshimi Takeuchi : Design and Implementation of Automatic Discharge Gap Controller for a Curved Hole Creating Microrobot with an Electrical Discharge Machining Function, International Journal of Automation Technology (IJAT), Vol.4, No.6, 542-551, 2010. (Link to Publication Site) ● Publication site (DOI): 10.20965/ijat.2010.p0542 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.20965/ijat.2010.p0542 (DOI: 10.20965/ijat.2010.p0542)
38.	窪田耕児, 中本圭一, Tohru Ishida and 竹内芳美 : 5軸加工を考慮した複合加工機用CAMシステムの開発, Transactions of The Japan Society of Mechanical Engineers, Series C, Vol.76, No.770, 2729-2735, 2010. (Summary) In recent years, highly efficient machining by multi-tasking machine tools attracts the attention since manufacturing industry tends to high-mix low-volume production. An introduction of multi-tasking machine tools results in many advantages. However, the machining operation is difficult due to the complexity of the machine tool structure. Consequently, NC programming for the machine tools requires much time and labor. In addition, the self-interference of the machine tools must be considered. The study deals with the development of an unprecedented CAM system which can achieve the process planning and generate NC programs automatically for multi-tasking machine tools by considering the self-interference and using 3D-CAD data. At the previous study, milling was limited to 3-axis machining. The study deals with the development of CAM system capable of 5-axis control milling in terms of the self-interference avoidance of the machine tools. (Keyword) Multi-Tasking Machine Tools / Turning / Milling / CAM / Process Planning / 5-Axis Control (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001206388608000 ● Summary page in Scopus @ Elsevier: 2-s2.0-78651466194 (CiNii: 1390001206388608000, Elsevier: Scopus)
39.	唐辛鋭, 吉永実樹, 中本圭一, Tohru Ishida and 竹内芳美 : 特殊チャンファ付きダイヤモンド工具の摩耗抑制をした高硬度材の超精密マイクロ溝加工, Journal of the Japan Society for Precision Engineering, Vol.76, No.9, 1082-1087, 2010. (Summary) Recently, in accordance with the technical development and miniaturization of the information equipments, the demand of optic elements with high precision and miniaturization is increased. The die is used in the manufacture of the optic elements. Thus, it is needed to machine the die with high efficiency and high precision. As the material of mold, hard material including cemented carbide and ceramics is used. However, when hard material is machined, it is a problem of the occurrence of brittle fracture and hard tool wear. Tools with chamfer are used in the machining of hard material to reduce tool wear. However, there is a serious problem that the rake angle is not constant along the edge of the conventional R-shape tool with chamfer since the tool shape is like ellipse, it is difficult to machine hard materials with high precision. To solve this problem, a special tool with chamfer is developed. The study proposes a new microgrooving method with tool wear suppressed by the special tool with chamfer. The effectiveness is verified by the microgrooving experiment of SiC. (Keyword) ultraprecision microgrooving / hard material / R-shape diamond tool with chamfer / tool wear suppression / cutting point swivel machining / ultraprecision microgrooving / hard material / R-shape diamond tool with chamfer / tool wear suppression / cutting point swivel machining (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.76.1082 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679773317376 ● Summary page in Scopus @ Elsevier: 2-s2.0-77957685342 (DOI: 10.2493/jjspe.76.1082, CiNii: 1390282679773317376, Elsevier: Scopus)
40.	Tohru Ishida, Eiki Ishiguro, Masahiko Kita, Keiichi Nakamoto and Yoshimi Takeuchi : Development of CAD/CAM System for Cross Section^s Changing Hole Electrical Discharge Machining ---Formulation of Post Processor---, Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol.4, No.5, 1054-1065, 2010. (Summary) This study deals with the development of a new CAD/CAM system for fabricating holes whose cross sections change variously. The cross sections of machined holes are generally constant. The limitations in the shapes of holes that can be machined make obstacles in the design stage of industrial products. A new device that utilizes electrical discharge machining has been developed that can create holes with various cross sections to solve this problem. However, it has been impossible to put the device into practical use since there has been no software that has enabled the designed shapes to be easily machined. Therefore, we aimed at developing a new CAD/CAM system for machining the beforehand designed holes with changing cross sections by using the device. As the first step in developing the CAD/CAM system, the post processor in the CAM system is formulated in this paper. (Keyword) Electrical Discharge Machining / Cross Section's Changing Hole / CAD / CAM / Post Processor (Link to Publication Site) ● Publication site (DOI): 10.1299/jamdsm.4.1054 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282680249365248 ● Search Scopus @ Elsevier (DOI): 10.1299/jamdsm.4.1054 (DOI: 10.1299/jamdsm.4.1054, CiNii: 1390282680249365248)
41.	Koji Kubota, Takashi Kotani, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Development of CAM System for Multi-tasking Machine Tools, Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol.4, No.5, 816-826, 2010. (Summary) Multi-tasking machine tools are very useful to manufacture complicated workpiece efficiently. However, it is very difficult to generate NC data when an operator uses multi-tasking machine tools. Currently, there are some CAM systems for multi-tasking machine tools. However, there are such problems as the manual allocation of parts to generate tool paths, the difficulty of self-interference recognition without a simulator, and so on. Therefore, this study deals with the development of CAM system which can recognize part configurations, calculate tool paths automatically for turning and milling operations, and sort them in machining order, based on 3-D CAD data of workpieces. (Keyword) Process Planning / CAM / Multi-tasking Machine Tool / Turning / Milling (Link to Publication Site) ● Publication site (DOI): 10.1299/jamdsm.4.816 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282680249364096 ● Search Scopus @ Elsevier (DOI): 10.1299/jamdsm.4.816 (DOI: 10.1299/jamdsm.4.816, CiNii: 1390282680249364096)
42.	Zhangyong Yu, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Study on an Interactive System for Conceptual and Basic Design of Machine Tool Structure, Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol.4, No.5, 795-805, 2010. (Summary) This paper presents the improvement of design efficiency of machine tool structure in the conceptual and basic design stage. An interactive system has been developed for designing machine tool structure in this study. The key point in the interactive system is that a set of beam elements are assumed to compose the total structure of machine tool because it is easy to analyze the static, dynamic and thermal features. In this interactive system, a conversion procedure also has been developed. By using this conversion procedure, the selected beam structure of machine tool can be converted to an actual structure, completing conceptual and basic design. Consequently, using the interactive system allow, designers can complete the machine tool structure design in a shorter time with higher efficiency. The goal of the interactive system is to assist designers to quantitatively and quickly select a superior machine tool structure. (Keyword) Machine Tool / Interactive System / Total Structure / Conceptual and Basic Design / Conversion Procedure (Link to Publication Site) ● Publication site (DOI): 10.1299/jamdsm.4.795 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282680249362944 ● Search Scopus @ Elsevier (DOI): 10.1299/jamdsm.4.795 (DOI: 10.1299/jamdsm.4.795, CiNii: 1390282680249362944)
43.	Takamasa Moriya, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Creation of V-shaped microgrooves with flat-ends by 6-axis control ultraprecision machining, CIRP Annals - Manufacturing Technology, Vol.59, No.1, 61-66, 2010. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.cirp.2010.03.054 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.cirp.2010.03.054 (DOI: 10.1016/j.cirp.2010.03.054)
44.	Zhangyong Yu, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Interactive Design-Assistance System of Machine Tool Structure in Conceptual and Fundamental Design Stage, International Journal of Automation Technology (IJAT), Vol.4, No.3, 303-311, 2010. (Link to Publication Site) ● Publication site (DOI): 10.20965/ijat.2010.p0303 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.20965/ijat.2010.p0303 (DOI: 10.20965/ijat.2010.p0303)
45.	大場貴信, 中本圭一, Tohru Ishida and 竹内芳美 : 5軸制御加工用CAPP/CAMシステムの開発 -3次元微小部品加工への適用-, Journal of the Japan Society for Precision Engineering, Vol.76, No.1, 90-95, 2010. (Summary) Complicated 3-D parts can be created by using the developed multi-axis control machining centers. 3-D CAD/CAM systems for multi-axis control machining are also developed to save time and labor in preparing NC data. However, operators consume a longtime in process planning since there are few practical computer systems for process planning. It is indispensable to develop CAPP(Computer Aided Process Planning) system for 3-D machining in response to the demands. The study deals with the development of fundamental CAPP/CAM system for multi-axis control 3-D machining. The system developped in the study enables 5-axis control tool path generation in consideration of tool length, the tool posture change and the workpiece fixing direction, based on the tool entrance face concept. From experimental result of creating a micro impeller, it is confirmed that the CAPP/CAM function has the potential of effective multi-axis control machining. (Keyword) 5-axis control machining / process planning / CAM / micro impeller / 5-axis control machining / process planning / CAM / micro impeller (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.76.90 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679774744192 ● Search Scopus @ Elsevier (DOI): 10.2493/jjspe.76.90 (DOI: 10.2493/jjspe.76.90, CiNii: 1390282679774744192)
46.	山本真語, 平野稔, 中本圭一, Tohru Ishida and 竹内芳美 : 微細構造を有するガラスレンズ成形型の高精度加工に関する研究(第2報) -マイクロフレネル溝を有する非軸対称非球面金型の高精度加工-, Journal of the Japan Society for Precision Engineering, Vol.76, No.1, 85-89, 2010. (Summary) In recent years, the demand of optical devices with complicated and highly accurate shape such as Fresnel lens and f-q lens is growing up in terms of miniaturization and improvement of information equipments. Moreover, the demand of glass lenses increases for the purpose of improving its heat resistance and optical performances. The study proposes a machining process for non-axisymmetric aspheric cemented tungsten carbide mold with minute structures, aiming at high precision machining. In the proposed process, the non-axisymmetric aspheric surfaces except for minute structures are at first machined by the spiral form grinding tool path with a spherical resinoid bonded diamond wheel. The machined surface center is corresponding to the center of the rotation axis of ultraprecision machine tool. Afterwards, the surfaces are ground for compensation, based on allover shape measurement interpolated by cubic spline. Then, minute structures are created on non-axisymmetric aspheric surfaces by the grinding with a disk type metal bonded diamond wheel. As a result, it is found that the proposed machining method has the potential of producing a high precision non-axisymmetric aspheric glass lens mold with minute structures effectively. (Keyword) glass lens mold / non-axisymmetric asphere / cemented tungsten carbide / ultra precision priding / glass lens mold / non-axisymmetric asphere / cemented tungsten carbide / ultra precision grinding (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.76.85 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679774746368 ● Search Scopus @ Elsevier (DOI): 10.2493/jjspe.76.85 (DOI: 10.2493/jjspe.76.85, CiNii: 1390282679774746368)
47.	井上武浩, 中本圭一, Tohru Ishida and 竹内芳美 : 突出し長さを考慮した3+2軸制御荒加工用工具経路生成, Transactions of The Japan Society of Mechanical Engineers, Series C, Vol.75, No.759, 3089-3095, 2009. (Summary) In recent years, 5-axis control machining has attracted a wide attention because of having many advantages compared with 3-axis control machining. However, there have been few roughing procedures corresponding to 5-axis control machining. This study especially deals with roughing by 3+2-axis control machining, which performs 3 translational axes machining after determining a suitable tool axis vector by 2 rotational axes movement. For 3+2-axis control machining, the determination of tool axis vectors, tool lengths and tool diameters largely affects the rough machining time. The previous study proposed a method of determining the optimal tool axis vectors and selecting the tool diameters for efficient roughing. In order to improve the method more effectively, this study proposes a new method of searching optimal tool combinations by taking account of shorter tool length. Stiffness of short tool is so high that it can machine workpiece more efficiently. The effectiveness of the proposed method was demonstrated by the machining simulation and experiment. (Keyword) Roughing / 3+2-Axis Control Machining / Multi-Stage Decision / Voxel (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282681363658624 ● Summary page in Scopus @ Elsevier: 2-s2.0-76349117045 (CiNii: 1390282681363658624, Elsevier: Scopus)
48.	北正彦, Tohru Ishida, 寺本孝司 and 竹内芳美 : Development of Microrobot for Curved Hole Electrical Discharge Machining:- Size Reduction and Performance Enhancement by Improvement of Automatic Discharge Gap Controller -, Journal of the Japan Society for Precision Engineering, Vol.75, No.11, 1355-1359, 2009. (Summary) The study deals with the size reduction and performance improvement of automatic discharge gap controller (ADGC) for a microrobot which can fabricate a long curved hole by electrical discharge machining (EDM). The development of curved hole machining method is strongly required so that the pipelines with an arbitrary shape can be made in an arbitrary position. However, such pipelines cannot be fabricated since holes are generally formed by drilling. To solve the problem, the paper proposes a curved hole machining method by means of a microrobot with an EDM function. The microrobot has to have the function of performing the stable EDM in such a limited space as the bottom of a long curved hole, in other words, the function of always keeping the equipped electrode in an appropriate position automatically and autonomously so as to maintain stable EDM. ADGC is key component to realize the function. The prototype of ADGC was developed. However, the prototype was too large to install on a microrobot and did not achieve the full performance designed. Therefore, in the study, ADGC is improved to reduce its size and to achieve its full performance. From the experimental results, it is found that the improved ADGC realizes the full performance designed. (Keyword) electrical discharge machining / curved hole / automatic discharge gap controller / shape memory alloy (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.75.1355 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204797405568 ● Summary page in Scopus @ Elsevier: 2-s2.0-77955351324 (DOI: 10.2493/jjspe.75.1355, CiNii: 1390001204797405568, Elsevier: Scopus)
49.	小谷昴, 中本圭一, Tohru Ishida and 竹内芳美 : 複合加工機用CAMシステムの研究, Transactions of The Japan Society of Mechanical Engineers, Series C, Vol.75, No.757, 2589-2595, 2009. (Summary) Multi-tasking machine tools are powerful to manufacture complicated workpieces with high productivity. However, NC data generation for multi-tasking machine tools is very difficult in general when using such machine tools. There are some CAM systems for multi-tasking machine tools, however they have such problems as the manual allocation of parts to generate tool paths, the difficulty of self-interference recognition without simulator and so on. Therefore, this study deals with the development of the system which can recognize part configurations, calculate tool paths automatically for turning and milling operations and sort them in machining order, based on 3-D CAD data of workpieces and target shape. (Keyword) Process Planning / Computer Aided Manufacturing (CAM) / Multi-Tasking Machine Tools / Turning / Milling / Numerical Control (NC) / Numerical Control / NC (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282681364080512 ● Summary page in Scopus @ Elsevier: 2-s2.0-72149095780 (CiNii: 1390282681364080512, Elsevier: Scopus)
50.	Tohru Ishida, 石黒永樹, 北正彦 and 竹内芳美 : 断面変化穴放電加工用CAD/CAMシステムの開発(2次元形状用ポストプロセッサの構築), Transactions of The Japan Society of Mechanical Engineers, Series C, Vol.75, No.757, 2440-2446, 2009. (Summary) The study deals with the development of a new CAD/CAM system for fabricating the holes whose cross sections are changing variously. The realizable hole shapes by machining are generally limited. As a typical example, a cross section of a machined hole is constant. To solve the problem, a new device had developed which could create cross section's changing holes by means of electrical discharge machining. However, it was impossible to put the device into practical use, since the software system for the device did not exist which allowed the device to machine an arbitrary cross section's changing hole. Accordingly, the study aims at the development of a new CAD/CAM system to realize such a machining. As the first step, in this paper, the post processor of the CAD/CAM system is formulated to machine 2-dimensional cross section's changing holes. The post pocessor outputs operating program of the device by inputting movement path of the electrode. The results obtained from the experiments show that the post processor can machine 2-dimensional, complicated cross section's changing holes by inputting electrode location data. (Keyword) Electrical Discharge Machining / Cross Section's Changing Hole / CAM / Machine Tool / Post Processor (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282681364488960 ● Summary page in Scopus @ Elsevier: 2-s2.0-72149118509 (CiNii: 1390282681364488960, Elsevier: Scopus)
51.	Tohru Ishida, Yuichi Mochizuki and Yoshimi Takeuchi : Elementary Study on the Creation of Cross Section's Changing Holes by Means of Electrical Discharge Machining, International Journal of Automation Technology (IJAT), Vol.3, No.5, 592-601, 2009.
52.	Yoshimi Takeuchi, Yosuke Yoneyama, Tohru Ishida and Tomohiko Kawai : 6-Axis Control Ultraprecision Microgrooving on Sculptured Surfaces with Non-Rotational Cutting Tool, CIRP Annals - Manufacturing Technology, Vol.58, No.1, 53-56, 2009. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.cirp.2009.03.124 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.cirp.2009.03.124 (DOI: 10.1016/j.cirp.2009.03.124)
53.	上田康文, Tohru Ishida and 竹内芳美 : 五軸NURBS補間加工用CAMシステムの開発(一般化ポストプロセッサによるNCデータの生成), Transactions of The Japan Society of Mechanical Engineers, Series C, Vol.75, No.749, 216-222, 2009. (Summary) NURBS (Non-Uniform Rational B-Spline) is well known to express free-form curves and surfaces in current CAD systems. Some NC controllers can accept NC data written in the NURBS interpolated format by using G 06.2 code, and NURBS interpolated machining enables us to decrease the amount of NC data, to eliminate the error due to the linear interpolation and so on. Although there are a few post-processors to generate NURBS interpolated NC data for simultaneous 5-axis controlled machining, most of them transform linear interpolated NC data into NURBS interpolated ones by the least square method and so on. Therefore, if the linear. interpolated NC data is huge, the conventional post-processor may require a long calculation time to generate NURBS interpolated ones. In addition, the post-processor lacks general versatility because it copes with a specific machining center. To solve these problems, the study deals with developing a generalized post-processor which can generate NC data without the linear approximation, while considering the axis composition of various machining centers. As the result, it is found that the developed post-processor efficiently generates practical 5-axis NURBS interpolated NC data. (Keyword) NURBS / 5-Axis Controlled Machining / Generalized Post-Processor / NC Data Generation (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001206386062080 ● Summary page in Scopus @ Elsevier: 2-s2.0-63849150376 (CiNii: 1390001206386062080, Elsevier: Scopus)
54.	藤井太一, 平野稔, 渋川哲郎, Tohru Ishida and 竹内芳美 : Study on Precision Machining of Glass Lens Mold with Minute Structures : Precision Machining of Glass Lens Mold with Fresnel Shape Applying Complex Machining Process, Journal of the Japan Society for Precision Engineering, Vol.74, No.12, 1298-1302, 2008. (Summary) In optical devices, the demand of glass lenses with complicated shapes like Fresnel shape is recently growing up for the purpose of improving its heat resistance and optical performances. The study suggests a new machining process for cemented tungsten carbide mold with Fresnel shape, aiming at high precision machining. In the proposed process, the curved surfaces except for sharp edges are at first machined by the conventional grinding method with a disk type metal bonded diamond wheel. Then, sharp edges are created on curved surfaces by fly cutting method with knife edged single crystal diamond tool. Fly cutting method is expected to reduce tool wear due to the intermittent machining process. From fundamental V-microgrooving experiments of WC by fly cutting and shaping, it is clarified that the damage of cutting tool by fly cutting is reduced, compared to shaping. Therefore, complex machining of Fresnel shape by proposed machining method allows sharp edges to create to WC mold. As a result, it is found that the proposed machining method has the potential of producing a high precision glass lens mold with Fresnel shape effectively. (Keyword) glass lens mold / Fresnel shape / cemented tungsten carbide / complex machining / fly cutting / ultra precision grinding (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.74.1298 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679773250048 ● Summary page in Scopus @ Elsevier: 2-s2.0-77955461439 (DOI: 10.2493/jjspe.74.1298, CiNii: 1390282679773250048, Elsevier: Scopus)
55.	Tohru Ishida, Yasuhito Miyake, Koji Teramoto and Yoshimi Takeuchi : Development of an Electrode Motion Control Device for Curved Hole Electrical Discharge Machining, International Journal of Automation Technology (IJAT), Vol.2, No.6, 447-456, 2008.
56.	Tohru Ishida and Yoshimi Takeuchi : Creation of U-shaped and Skewed Holes by Means of Electrical Discharge Machining Using an Improved Electrode Curved Motion Generator, International Journal of Automation Technology (IJAT), Vol.2, No.6, 439-446, 2008.
57.	上田康文, 井上武浩, Tohru Ishida and 竹内芳美 : 五軸NURBS補間加工用CAMシステムの開発(非干渉空間を利用した工具経路の生成), Transactions of The Japan Society of Mechanical Engineers, Series C, Vol.74, No.744, 2065-2071, 2008. (Summary) Nowadays, it is essential to shorten the production time and to make high quality products at low costs since consumer-needs are becoming diversified. To meet this high requirement, it is expected that 5-axis NURBS (Non-Uniform Rational B-Spline) interpolated machining be put into practical use. 5-axis NURBS interpolated NC data are generally defined by transforming linear interpolated NC data into NURBS interpolated ones. Therefore, the approximation error is consequently included in calculated tool paths due to the use of the linear interpolated data. On the other hand, the mainprocessors have been developed, which can generate NURBS interpolated CL data directly from CAD modeling data. It is very useful, however there is a problem of taking a long calculation time to generate CL data since the interference avoidance is considered for each tool path. Therefore, the study develops an useful CAM system, which can automatically generate practical 5-axis NURBS interpolated NC data, utilizing the interference-free space. As a result, the effectiveness of the proposed method is demonstrated from the feasibility experiments. (Keyword) NURBS / 5-Axis Controlled Machining / Interference Avoidance / CL Data / Numerical Control (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaic.74.2065 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520290883968685952 ● Summary page in Scopus @ Elsevier: 2-s2.0-55349112208 (DOI: 10.1299/kikaic.74.2065, CiNii: 1520290883968685952, Elsevier: Scopus)
58.	Koji Teramoto, Jun-ichi Kaneko, Tohru Ishida and Yoshimi Takeuchi : A Framework of Compositional Machining Simulation for Versatile Machining Simulation, Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol.2, No.4, 668-674, 2008. (Summary) This paper presents a framework of a compositional machining simulation. Because the machining process involves complex physical phenomena, various fragmented process simulations, such as cutting force, thermal behavior, vibration, and so on, have been investigated. The authors have proposed a concept of the compositional machining simulation which enables a versatile machining simulation. The concept is based on the building block type construction of the various machining process simulators. An association framework and systematic description of fragmental process models are explained. As an example of the framework, fragmented simulations of endmilling process are organized as a multi-aspect simulation. (Keyword) Compositional Simulation / Endmilling / Versatile Simulation / Multi-Aspect / Multi-Scale Simulation (Link to Publication Site) ● Publication site (DOI): 10.1299/jamdsm.2.668 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205273329792 ● Search Scopus @ Elsevier (DOI): 10.1299/jamdsm.2.668 (DOI: 10.1299/jamdsm.2.668, CiNii: 1390001205273329792)
59.	佐々木崇, 園真, Tohru Ishida, 河合知彦 and 竹内芳美 : 5軸制御超精密フライス加工による3次元微小彫像の創成, Journal of the Japan Society for Precision Engineering, Vol.73, No.11, 1256-1260, 2007. (Summary) The study deals with 5-axis control micromilling of such a complicated small shape as a human head by use of a diamond pseudo ball end mill. In the fields of micromachining, the milling with diamond cutting tools plays an important role due to the capability of creating 3-D complicated shapes with high accuracy. A wide variety of microstructures have been created with ultraprecision machining centers. Nevertheless, these structures seem to consist of a simple shape. Thus, the study proposes a CAM system for 5-axis control ultraprecision machining to create complicated microparts. 5-axis control micromachining of a BOSATSU was conducted to verify the practical effectiveness of the developed system. Based on the 3-D restored data of BOSATSU, the system can create the complicated statue, taking account of the collision between a tool and a workpiece. From the experimental result, it is found that the CAM system for 5-axis control ultraprecision machining has the potential of accurately producing 3-D small complicated shapes. (Keyword) ultraprecision machining center / 5-axis control milling / 3-dimensional tiny statue (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.73.1256 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204797841792 ● Search Scopus @ Elsevier (DOI): 10.2493/jjspe.73.1256 (DOI: 10.2493/jjspe.73.1256, CiNii: 1390001204797841792)
60.	園真, Tohru Ishida, 寺本孝司, 榎本俊之 and 竹内芳美 : 超精密5軸制御加工におけるセッティング誤差の一般化補正法, Journal of the Japan Society for Precision Engineering, Vol.73, No.10, 1154-1158, 2007. (Summary) The study deals with developing a new method to compensate the initial position error of diamond cutting tool in ultraprecision micromachining by use of a 5-axis control ultraprecision machining center. In the ultraprecision machining, various kinds of errors have large influence on the machining accuracy although they are very small. In recent years, the demand is increasing to fabricate complicated microparts accurately and efficiently by means of multi-axis control ultraprecision machining center. However, the accumulation of various kinds of errors due to the increasing number of motion axes and the setting difficulty of small diamond tools deteriorate the form accuracy of machined microparts. To solve these problems, the study proposes a new method to precisely measure the tool radius and to correctly set the tool, and develops the initial tool setting error compensation system. From experimental results, it is found that the method proposed in the study is effective. (Keyword) 5-axis control ultraprecision machining / tool shape error / setting error / error compensation (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.73.1154 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204797158400 ● Search Scopus @ Elsevier (DOI): 10.2493/jjspe.73.1154 (DOI: 10.2493/jjspe.73.1154, CiNii: 1390001204797158400)
61.	守屋貴雅, Tohru Ishida, 寺本孝司, 榎本俊之 and 竹内芳美 : 6軸制御両端止りマイクロ溝加工, Journal of the Japan Society for Precision Engineering, Vol.73, No.10, 1137-1141, 2007. (Summary) In recent years, attention is paid to diffractive optics which have surface appearance like diffraction grating or Fresnel lens. A variety of machining methods are requested to effectively produce metal mold of diffractive optics, consisting of a number of microgrooves with various shapes. One of them is flat-end microgrooves. Flat-end microgrooves mean microgrooves having no slope at the end. The existence of the slope limits the design of microgrooves and causes unnecessary diffraction lights and losses. Thus, the slope is requested to remove. The study deals with the creation of V-shaped microgrooves with two flat-ends by using 6-axis controll non-rotational cutting tools, that is, curved microgrooves with two flat-ends are created on a curved surface. The proposed method shows the effectiveness to create flat-end curved microgrooves on curved surfaces as well as the method of cutting edge detection to set a cutting edge symply and accurately. (Keyword) V-shaped microgroove / flat-end / 6-axis control machining / non-rotational cutting tool (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.73.1137 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204797146496 ● Search Scopus @ Elsevier (DOI): 10.2493/jjspe.73.1137 (DOI: 10.2493/jjspe.73.1137, CiNii: 1390001204797146496)
62.	梅原猛, Tohru Ishida, 寺本孝司 and 竹内芳美 : 多軸制御加工のための効率的荒加工用工具経路生成の研究, Transactions of The Japan Society of Mechanical Engineers, Series C, Vol.73, No.732, 2387-2393, 2007. (Summary) In recent years, 3-axis control machining is generally performed in roughing process. However, 3-axis control machining is not efficient in case of roughing complicated shapes, i. e., parts with overhanging shape, because it requires to reset the workpiece. To solve this problem, 5-axis control machining has been developed. However, there has been no roughing procedure in 5-axis control machining. The study deals with roughing by 3+2-axis control machining, which performes 3 translational axis machining after determining a suitable tool axis vector by 2 rotational axis movement. For 3+2-axis control machining, the determination of tool axis vectors and tool diameters largely affects the rough machining time. The study proposes a method of determining the optimal tool axis vectors and selecting the tool diameters for efficient roughing. At first, the method searches candidate of tool axis vectors after calculating machinable area in each tool axis vector, applying the multi-stage decision process. Then, the method determines the combination of tool axis vectors and tool diameters, using a peformance index. The effectiveness of the proposed method was demonstrated by the machining experiment of an impeller. (Keyword) Tool Pass Generation / Roughing / 3+2-Axis Control Machining / Multi-stage Decision (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaic.73.2387 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520290882875756544 ● Summary page in Scopus @ Elsevier: 2-s2.0-35448930743 (DOI: 10.1299/kikaic.73.2387, CiNii: 1520290882875756544, Elsevier: Scopus)
63.	Masatoshi Morikawa, Tohru Ishida, Koji Teramoto and Yoshimi Takeuchi : 5-Axis Control Tool Path Generation Using Curved Surface Interpolation, JSME International Journal, Series C: Mechanical Systems,Machine Elements and Manufacturing, Vol.49, No.4, 1209-1214, 2006. (Link to Publication Site) ● Publication site (DOI): 10.1299/jsmec.49.1209 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-34548100102 (DOI: 10.1299/jsmec.49.1209, Elsevier: Scopus)
64.	富永有機, 寺本孝司, Tohru Ishida, 本田尚義 and 竹内芳美 : 非一様Bスプライン表現による五軸制御加工用曲線補間CLデータ生成, Transactions of The Japan Society of Mechanical Engineers, Series C, Vol.72, No.719, 2286-2292, 2006. (Summary) Most of CAD systems can treat free form curves and surfaces in the mathematical formula called NURBS (Non Uniform Rational B Spline). Some NC controllers can handle NC data written in NURBS interpolated formula by using G 06.2 code. The use of NURBS expression enables us to decrease the amount of NC data, to eliminate the error due to the linear interpolation and to get rid of rapid acceleration and deceleration. However, little CAM systems can create NURBS interpolated NC data for 5 axis controlled machine tools. Therefore, the paper deals with the development of the main processor of CAM system, which creates CL data expressed by six dimensional Non Uniform B-Spline curve. The main processor can generate the CL data directly from CAD modeling data, while considering the interference between a ball end mill and a workpiece and keeping the designated tool posture as long as possible so that the machined surfaces can be smooth. (Keyword) NURBS / 5 axis Control Machining / Interference Avoidance / CL Data (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaic.72.22 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520290883306178688 ● Summary page in Scopus @ Elsevier: 2-s2.0-33749352992 (DOI: 10.1299/kikaic.72.22, CiNii: 1520290883306178688, Elsevier: Scopus)
65.	Koji Teramoto, Ryuichi Tanaka, Tohru Ishida and Yoshimi Takeuchi : Thermal State Visualization of Machining Workpiece by Means of a Sensor-Configured Heat Conduction Simulation, JSME International Journal, Series C: Mechanical Systems,Machine Elements and Manufacturing, Vol.49, No.2, 287-292, 2006. (Summary) This paper deals with an adaptive visualization method of the thermal state in machining operation. The visualization is expected to enhance the recognition ability of operators. First, a framework of thermal state visualization is proposed. Then, a sensor-configured heat conduction simulation is proposed as an estimation method of thermal states of the machining workpiece. The method is based on the association of sensed data with the process simulation. As an implementation of the proposed estimation method, a prototype system is developed. After illustrating the configuration of the prototype system, results of a simple example are shown. The results indicate the effectiveness of the adaptive estimation. The influence of measurement points are also evaluated based on the case study. Finally, conclusions and future works are presented. (Keyword) Operation Support / Thermal State / Visualization / Endmilling (Link to Publication Site) ● Publication site (DOI): 10.1299/jsmec.49.287 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205900484096 ● Search Scopus @ Elsevier (DOI): 10.1299/jsmec.49.287 (DOI: 10.1299/jsmec.49.287, CiNii: 1390001205900484096)
66.	米山陽介, Tohru Ishida, 河合知彦 and 竹内芳美 : 非回転工具を用いた自由曲面上への6軸制御超精密マイクロ溝加工, Journal of the Japan Society for Precision Engineering, Contributed Papers, Vol.72, No.5, 647-651, 2006. (Summary) In optical electronics systems, particular optical devices such as mirrors, lenses, diffraction grating, etc. play respective roles. Therefore, many optical devices are combined to consist of a optical system. This causes the problem that the arrangement error of these devices influences the total accuracy of optical system. In addition, new optical devices with multi-function, e.g. diffraction and focusing, have been recently required to miniaturize optical systems and to decrease cost. However, their shape is generally very complicated. Typical example is such a shape as curved microgrooves on a 3-dimensional complex surface. To machine the shape, milling or turning by use of a rotational cutting tool is not suitable for tool interference. In the study, a nonrotational cutting tool is thus employed. In case of machining microgrooves on sculptured surface with a non-rotational cutting tool, 6-axis control is necessary to control tool attitude and tool direction. The study deals with the development of CAM system for 6-axis control ultraprecision grooving. From the experiments of creating microgrooves on a spherical surface and a sculptured surface, it is found that microgrooving on their surfaces is possible by 6-axis control. (Keyword) microgroove / ultraprecision machining / non-rotational cutting tool / 6-axis control machining (Link to Publication Site) ● Publication site (DOI): 10.2493/jspe.72.647 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205281855744 ● Search Scopus @ Elsevier (DOI): 10.2493/jspe.72.647 (DOI: 10.2493/jspe.72.647, CiNii: 1390001205281855744)
67.	Takeshi Umehara, Koji Teramoto, Tohru Ishida and Yoshimi Takeuchi : Tool Posture Determination for 5-axis Control Machining by Area Division Method, JSME International Journal, Series C: Mechanical Systems,Machine Elements and Manufacturing, Vol.49, No.1, 35-42, 2006. (Summary) The study deals with a new method to generate interference-free tool posture for 5-axis control machining using a ball end-mill. The 5-axis control machining can produce complicated shapes and parts consisting of overhanging and or sculptured surfaces such as impellers. However, high degree of freedom of 5-axis control machining center causes a fatal problem that other parts except cutting edges of the tool may interfere with other surfaces of the machining object. Therefore, it is necessary to obtain the adequate tool postures to avoid the interference during machining. The interference avoidance is generally performed by the method that cutting points are generated so as to be arranged on the surface to be machined, and then the interference-free tool posture is determined on each cutting point by the geometrical calculations. However, the method has a problem that it takes long time for calculation. To solve the problem, the study proposes a new interference avoidance method of reversing the order of the above procedure, i. e., that of determining a set of interference-free tool postures before generating cutting points. From the machining results, it is confirmed that the proposed method is available to fabricate complicated shapes since the impeller can be machined by using the method. (Keyword) Machine Tool / Computer Aided Manufacturing (CAM) / Numerical Control (NC) / 5 Axis Control Machining / Interference Avoidance / Tool Posture (Link to Publication Site) ● Publication site (DOI): 10.1299/jsmec.49.35 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204678250112 ● Search Scopus @ Elsevier (DOI): 10.1299/jsmec.49.35 (DOI: 10.1299/jsmec.49.35, CiNii: 1390001204678250112)
68.	森川真寿, Tohru Ishida, 寺本孝司 and 竹内芳美 : 曲面形状補間を用いた五軸制御加工用工具経路生成法, Transactions of The Japan Society of Mechanical Engineers, Series C, Vol.72, No.713, 255-260, 2006. (Summary) In 5-axis control machining, it is important to reduce the processing time of generating interference-free tool path between tool and workpiece. Thus, the paper describes a method to determine interference-free tool postures, based on not every cutting point but every tool path. The method generates a ruled surface between an offset curve which sifts a cutting point curve by a tool radius against a surface to be machined, and one of parametric curves on an interference surface. A boundary tool locus which does not interfere with workpiece is generated by rotating the ruled surface, while moving control points on the surface. Tool postures corresponding to a cutting point curve are determined by appropriately selecting the curve within an area surrounded by two ruled surfaces. The curve implies a candidate of interference-free tool paths can be generated at high speed. The effectiveness of the proposed method was demonstrated by machining experiment of an impeller. (Keyword) 5-Aixs Control Machining / Interference-free / Tool Path / Curved Surface Interpolation / CAM (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaic.72.255 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520290882029187456 ● Summary page in Scopus @ Elsevier: 2-s2.0-33645138274 (DOI: 10.1299/kikaic.72.255, CiNii: 1520290882029187456, Elsevier: Scopus)
69.	三宅康仁, Tohru Ishida and 竹内芳美 : 電極運動制御装置を用いた一定曲率曲がり穴放電加工, Journal of the Japan Society for Precision Engineering, Contributed Papers, Vol.71, No.11, 1388-1392, 2005. (Summary) The study deals with the development of a new method to machine the curved holes with a constant curvature by means of the apparatus developed by the authors. It is strongly required to machine curved holes for the fabrication of water channels built in a mold. This is due to the achievement of their efficient arrangement, which can improve the productivity in molding by shortening the solidifying time in a molding cycle. However, the efficient arrangement cannot be realized since water channels are generally made by drilling, which causes their shape to be polygonal line. To meet the requirement, the authors developed the device which can fabricate curved holes by means of electrical discharge machining. Though the device is capable of machining various-shaped curved holes, the target shapes were not obtained since the control method and the utilized software were simple. In the study, therefore, a new method employing a vision sensor and its processing software are developed to control the device so skillfully that the curved holes with a constant curvature can be machined. From the experimental results, it is found that the developed control method has ability of accurately fabricating constant curvature curved holes. (Keyword) curved hole / electrical discharge machining / constant curvature / vision sensor / teaching playback (Link to Publication Site) ● Publication site (DOI): 10.2493/jspe.71.1388 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205280028544 ● Search Scopus @ Elsevier (DOI): 10.2493/jspe.71.1388 (DOI: 10.2493/jspe.71.1388, CiNii: 1390001205280028544)
70.	Tohru Ishida and Yoshimi Takeuchi : Creation of Curved Holes with Various Curvatures by Means of Electrical Discharge Machining and Slider Crank Chains, The CIRP J. of Manufacturing Systems, Vol.34, No.3, 195-201, 2005.
71.	Tohru Ishida, 小暮成一, 三宅康仁 and 竹内芳美 : 管内走行機構を用いた放電加工による曲がり穴の延長, Journal of the Japan Society for Precision Engineering, Contributed Papers, Vol.71, No.7, 911-915, 2005. (Summary) The study deals with the development of an in-pipe movable device to extend the length of a curved hole machined by means of the method proposed by the authors. To establish a curved hole machining method, authors have developed the device installed on an electrical discharge machine, which can make an electrode move along a curved trajectory with electrical discharge machining performed. This results in the fabrication of curve holes. However, the length of the curved holes is limited. Thus, the in-pipe movable device is developed to overcome the limitation. The device has a flexible body whose head is equipped with a spherical electrode and whose circumference is furnished with tiny bearings through leaf springs. It can run through a curved hole and make it longer by machining the bottom of the curved hole. From the experimental results, it is found that the device can perform a stable electrical discharge machining and extend the curved hole length. (Keyword) curved hole / electrical discharge machining / in-pipe movable device (Link to Publication Site) ● Publication site (DOI): 10.2493/jspe.71.911 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205279966976 ● Search Scopus @ Elsevier (DOI): 10.2493/jspe.71.911 (DOI: 10.2493/jspe.71.911, CiNii: 1390001205279966976)
72.	Tohru Ishida, 中嶋洋介, 三宅康仁 and 竹内芳美 : 曲がり穴放電加工用電極運動制御装置の開発, Journal of the Japan Society for Precision Engineering, Contributed Papers, Vol.71, No.2, 262-266, 2005. (Summary) This study deals with the development of a new curved hole machining device which is improved to highly control the curved hole shape. Holes are generally machined with a drill. Accordingly, their shapes are straight. As a result, mechanical design engineers must apply straight holes to products, even when a straight hole is not optimal shape in designing a product. The problem occurs in the design of water channels built in molds and of pipe lines used in pneumatic or hydraulic equipments since it is impossible for drills to make suitable curved holes. To solve the problem, it is required to establish a curve hole machining method. Therefore, the authors have developed and improved new devices to create a curved hole. However, the latest device is not necessarily equipped with high controllability of the curved hole shape since the shape control depends on a troublesome setting of the device's hardware. Thus, the device is improved by introducing servomotors and a personal computer so that it can be software controlled. From experimental results, it is found that the improved device has much higher controllability of the curved hole shape. (Keyword) curved hole / electrical discharge machining / servomotor / helical compression spring (Link to Publication Site) ● Publication site (DOI): 10.2493/jspe.71.262 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205280075264 ● Search Scopus @ Elsevier (DOI): 10.2493/jspe.71.262 (DOI: 10.2493/jspe.71.262, CiNii: 1390001205280075264)
73.	植木祐輔, 森重功一, Tohru Ishida and 竹内芳美 : Automation of Polishing Process by Industrial Robots : Polishing Path Generation in Consideration of Surface Curvature, Journal of the Japan Society for Precision Engineering, Contributed Papers, Vol.70, No.12, 1522-1526, 2004. (Summary) The study deals with the automation of polishing process for free-form surfaces by means of an industrial robot. In general, the polishing process has been performed by handwork of skilled workers. Since the polishing environment is extremely inferior and the polishing process is time-consuming and tedious work, the automation of polishing process is strongly desired and the robot systems have been introduced recently. However, the polishing by robots has not necessarily been performed in success. In the study, the polishing path generation is devised to improve the surface quality of workpieces. Thus, the relationship between the surface curvature of workpiece and the contact length of polishing tool is investigated by polishing experiments, which results in the new polishing path generation method. The method is successfully applied to polish an impeller of food and osmetics agitators, which consists of free-form surfaces. As a result, it is found that the new polishing path generation method is effective for polishing automation by robots. (Keyword) Polishing / Automation / Industrial robot / Polishing path (Link to Publication Site) ● Publication site (DOI): 10.2493/jspe.70.1522 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205281338240 ● Search Scopus @ Elsevier (DOI): 10.2493/jspe.70.1522 (DOI: 10.2493/jspe.70.1522, CiNii: 1390001205281338240)
74.	久門哲也, Tohru Ishida, 竹内芳美, 河合知彦 and 沢田潔 : 非回転工具を用いた超精密マイクロV溝加工, Journal of the Japan Society for Precision Engineering, Contributed Papers, Vol.70, No.10, 1301-1305, 2004. (Summary) The study deals with the creation of ultraprecision microgrooves using non-rotational diamond cutting tools with angle of 90 degrees, which are mounted on an ultraprecision machining center. Machining experiments of micro grooves were conducted to find the optimal value of cutting speed, depth of cut, rake angle, changing the cutting speed from 1mm/min to 200mm/min, the depth of cut from 0.1m to 10m and the rake angle from -5 degrees to 30 degrees. Workpieces were machined with the cutting tool submerged in the cutting fluid to know the influence of cutting fluid supply method. From the experimental results, the adequate cutting condition is obtained such as the rake angle of 10 degrees to 20 degrees, the finish cutting speed of 1mm/min and the depth of cut in rough cut and finish cut of 1m and 0.5m respectively. As the cutting fluid supply method, workpiece submerged in the cutting fluid is effective. Using the cutting condition, fine V-shaped microgrooves are obtained in various materials. In addition, frontlight optical plate and micro Fresnel lens with the designed micro grooves were designed and manufactured by non-rotational diamond cutting method. As a result, it is also found that the non-rotational diamond cutting method enables to accurately and neatly manufacture microgrooves without any burr generation. (Keyword) microgroove / ultraprecision machining center / non-rotational cutting tool (Link to Publication Site) ● Publication site (DOI): 10.2493/jspe.70.1301 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205281538560 ● Search Scopus @ Elsevier (DOI): 10.2493/jspe.70.1301 (DOI: 10.2493/jspe.70.1301, CiNii: 1390001205281538560)
75.	Tohru Ishida, Seiichi Kogure, Yasuhito Miyake and Yoshimi Takeuchi : Creation of Long Curved Hole by Means of Electrical Discharge Machining Using an In-pipe Movable Mechanism, Journal of Materials Processing Technology, Vol.149, No.1, 157-164, 2004. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.jmatprotec.2003.11.043 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1570291226812060288 ● Search Scopus @ Elsevier (DOI): 10.1016/j.jmatprotec.2003.11.043 (DOI: 10.1016/j.jmatprotec.2003.11.043, CiNii: 1570291226812060288)
76.	室田真弘, 鈴村宜暁, Tohru Ishida, 竹内芳美, 河合知彦 and 沢田潔 : Creation of Ultraprecision V-shaped Micro Grooves with Flat-end, Journal of the Japan Society for Precision Engineering, Contributed Papers, Vol.70, No.5, 677-682, 2004. (Summary) The study deals with the creation of V-shaped microgrooves with flat-end. Microgrooves with flat-end play an important role in case of generating intermittent grooves. Microgrooves by use of a rotational V-shaped cutting tool have a long circular arc slope with a large radius when stopping on the way. Thus, a non-rotational V-shaped cutting tool is employed, however, a slope is still formed at the end point of the microgroove. In the study, two new cutting methods are devised so that the V-shaped microgrooves with flat-end can be created. The first method makes use of chip generation whose shape is straight under some cutting condition. The non-rotational cutting tool presses the chips generated perpendicularly against the V-shaped microgroove and cuts the excessive parts of chips over the plane. The second one is to stick the non-rotational V-shaped cutting tool perpendicular to the workpiece surface, to feed it backwards and to remove the swelled parts by feed it to the reverse direction. From experimental results, it is found that the methods enable the creation of flat-end microgrooves. (Keyword) ultraprecision V-shaped microgroove / flat-end / non-rotational diamond tool (Link to Publication Site) ● Publication site (DOI): 10.2493/jspe.70.677 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282680258077184 ● Search Scopus @ Elsevier (DOI): 10.2493/jspe.70.677 (DOI: 10.2493/jspe.70.677, CiNii: 1390282680258077184)
77.	向山大輔, Tohru Ishida, 竹内芳美, 太田成賢, 錦織貴光, 森田正彦 and 小島昭博 : Development of Movable Drilling Robot inside a Pipeline, Journal of the Japan Society for Precision Engineering, Vol.69, No.12, 1769-1773, 2003. (Summary) The study deals with the development of a drilling robot traveling inside a pipeline. Aiming at inexpensive anti-corrosion and repair of underground pipes, a new method was established and has been widely employed, in which the internal wall of the pipes is coated with some pieces of material or resin layers. However, the coating method has a disadvantage of closing the inlets of pipes connected to a coated pipe. Accordingly, the inlets must be opened again from the outside of the pipe by means of excavating works, which cause high cost and a lot of waste time, and so on. Thus, a movable drilling robot is developed to make ths inlets again without excavating works. It can move inside the pipe, search the closed inlets to the connected pipes, and drill holes in the closed inlets. The consists of a drilling module for machining holes in the closed inlets, a tool positioning module for searching drilled points, determining the tool position and checking the drilled holes, and a moving module traveling inside a pipe for carrying hte avobe-mentioned modules. From the demonstration experiments, it is found that the robot can move inside the coated pipeline, find the closed inlets, position a tool, machine holes and check the holes. (Keyword) underground pipeline / movable robot inside a pipe / drilling / resin / pipe coating (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.69.1769 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679773823488 ● Summary page in Scopus @ Elsevier: 2-s2.0-70450206712 (DOI: 10.2493/jjspe.69.1769, CiNii: 1390282679773823488, Elsevier: Scopus)
78.	Tohru Ishida, 望月雄一 and 竹内芳美 : 往復スライダクランク機構を用いた穴内面フィン放電加工, Journal of the Japan Society for Precision Engineering, Vol.68, No.5, 715-719, 2002. (Summary) The study deals with developing a new method to fabricate various shapes inside a hole. A hole shape is limited to straight one in the practical machining manner. However, it often happens that the best hole meeting the requirement is not straight but more complex shaped one. In the study, hence, a new device is developed, which can make complicated shapes inside a hole. The device consists of an electrode for electrical discharge machining and some mechanical parts, and is installed on an electrical discharge machine (EDM). The device and EDM move as a reciprocating block slider crank mechanism. Namely, a translational motion of the EDM head can be converted into a rotational motion of the tool electrode. This results in machining the shape similar to the electrode locus. Consequently, if the machining mechanism is applied inside a hole, a semicircular shape can be created inside the hole. Moreover, the use of the electrode with slits makes it possible to fabricate fins inside the hole. From experimental results, it is found that the device has the potential of fabricating the semicircular space and the fins inside a hole. (Keyword) reciprocating block slider crank mechanism / electrical discharge machining / fins / hole (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.68.715 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204798154368 ● Summary page in Scopus @ Elsevier: 2-s2.0-31344466344 (DOI: 10.2493/jjspe.68.715, CiNii: 1390001204798154368, Elsevier: Scopus)
79.	Tohru Ishida and Yoshimi Takeuchi : L-Shaped Curved Hole Creation by Means of Electrical Discharge Machining and an Electrode Curved Motion Generator, The International Journal of Advanced Manufacturing Technology, Vol.19, No.4, 260-265, 2002. (Link to Publication Site) ● Publication site (DOI): 10.1007/s001700200032 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-0036212319 (DOI: 10.1007/s001700200032, Elsevier: Scopus)
80.	Tohru Ishida and 竹内芳美 : スライダクランク連鎖を用いた曲がり穴放電加工用電極送り機構の開発, Journal of the Japan Society for Precision Engineering, Vol.68, No.2, 206-210, 2002. (Summary) This study deals with developing a new method of machining curved holes with a variety of curvature. Mechanical engineers have taken it for granted that drilling is to machine a straight hole. Therefore, straight holes have been used even in unsuitable cases, for example, pipe lines used in pneumatic or hydraulic equipments and water channels built in molds. They cannot be machined in arbitrary shape and arrangement. This prevents the equipments from being minimized and deteriorates the productivity of molding. To solve these problems, it is strongly required that the curved hole machining method. Hence, to machine curved holes, we have developed a new device consisting of a helical compression spring, wires, and pulleys. However, the curvature of curved holes by the device was limited to a certain one. To overcome the functional problem, slider crank chains are introduced in the device. From experimental results, it is found that the improved device can machine curved holes with a various curvature. (Keyword) curved hole / slider crank chain / electrode feed mechanism / electrical discharge machining (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.68.206 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679774612352 ● Summary page in Scopus @ Elsevier: 2-s2.0-31344464363 (DOI: 10.2493/jjspe.68.206, CiNii: 1390282679774612352, Elsevier: Scopus)
81.	Tohru Ishida, 近藤和芳 and 竹内芳美 : 曲がり穴放電加工用電極送り機構の開発 -L字形曲がり穴加工-, Journal of the Japan Society for Precision Engineering, Vol.66, No.12, 1932-1937, 2000. (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.66.1932 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-2942620550 (DOI: 10.2493/jjspe.66.1932, Elsevier: Scopus)
82.	Tohru Ishida and 竹内芳美 : 圧縮コイルばねとワイヤを用いた曲がり穴放電加工用電極送り機構の開発, Journal of the Japan Society for Precision Engineering, Vol.65, No.7, 982-986, 1999.
83.	Tohru Ishida and 竹内芳美 : 自走式放電加工機構による曲がり穴加工 -電極間距離の自動制御機構-, Journal of the Japan Society for Precision Engineering, Vol.65, No.2, 245-249, 1999.

Academic Paper (Unrefereed Paper):

1.	北正彦 and Tohru Ishida : Development and Application of Automatic Discharge Gap Controller, 東海職業能力開発大学校紀要, No.22, 42-44, 2015.
2.	Masahiko Kita, Tohru Ishida, Koji Teramoto and Yoshimi Takeuchi : Size Reduction and Performance Improvement of Automatic Discharge Gap Controller for Curved Hole Electrical Discharge Machining, Service Robotics and Mechatronics, Vol.7, 143-148, 2009. (Link to Publication Site) ● Publication site (DOI): 10.1007/978-1-84882-694-6_25 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/978-1-84882-694-6_25 (DOI: 10.1007/978-1-84882-694-6_25)
3.	Tohru Ishida, Hiroki Nagasawa, Masahiko Kita and Yoshimi Takeuchi : Creation of Cross-Section Changing Hole with a Hemisphere by Means of Electrical Discharge Machining, Manufacturing Systems and Technologies for the New Frontier, 365-368, 2008. (Link to Publication Site) ● Publication site (DOI): 10.1007/978-1-84800-267-8_74 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/978-1-84800-267-8_74 (DOI: 10.1007/978-1-84800-267-8_74)
4.	Fumihito Andou, Akiko Yamamoto, Tomohiko Kawai, Hitoshi Ohmori, Tohru Ishida and i Yoshimi Takeuch : Microchannel Array Creation by Means of Ultraprecision Machining, Mechatronics for Safety, Security and Dependability in a New Era, 163-168, 2006. (Link to Publication Site) ● Publication site (DOI): 10.1016/B978-008044963-0/50034-5 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84882905047 (DOI: 10.1016/B978-008044963-0/50034-5, Elsevier: Scopus)
5.	Takeshi Nakajima, Tohru Ishida, Masahiko Kita, Koji Teramoto and Yoshimi Takeuchi : Development of Curved Hole Machining Method -Size Reduction of Hole Diameter-, Mechatronics for Safety, Security and Dependability in a New Era, 157-162, 2006. (Link to Publication Site) ● Publication site (DOI): 10.1016/B978-008044963-0/50033-3 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84882858265 (DOI: 10.1016/B978-008044963-0/50033-3, Elsevier: Scopus)
6.	Tohru Ishida and Yoshimi Takeuchi : U-shaped Curved Hole Creation by Means of Electrical Discharge Machining, Initiatives of Precision Engineering at the Beginning of a Millennium, 214-218, 2001.

Academic Letter:

1.	Akira Mizobuchi, Yasuhiro Iwamoto and Tohru Ishida : Slanting-hole drilling of glass plate using an electroplated diamond tool, Journal of the Japan Society for Abrasive Technology, Vol.58, No.10, 658-659, 2014. (Summary) The utility of slanting-hole drilling using an electroplated diamond tool of small-diameter devised by the authors was investigated. As with straight-hole drilling, a normal drilling cycle could be adopted with slanting-hole drilling because the unique shape of the tool increases chip discharge. In addition, the drilled hole showed a small degree of chipping without using an underlay board and/or ultrasonic wave instrument. The chipping width was influenced by the behavior of the axial component of the grinding force before completion of the drilling process. (Keyword) slanting-hole / electroplated diamond tool / glass plate / miniature drilling / chipping-less (Link to Publication Site) ● Publication site (DOI): 10.11420/jsat.58.658 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679311011840 ● Search Scopus @ Elsevier (DOI): 10.11420/jsat.58.658 (DOI: 10.11420/jsat.58.658, CiNii: 1390282679311011840)

Review, Commentary:

1.	Tohru Ishida : 放電加工を用いた穴内面に対する穴創成法の開発, 電気加工技術, Vol.43, No.134, 12-16, Jun. 2019. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1522543655449373312 (CiNii: 1522543655449373312)
2.	Tohru Ishida : Curved Hole Electrical Discharge Machining by Means of Electrode Motion Control Device ---Application of Teaching Playback Method and Automation of Teaching Process---, Journal of the Japan Society of Electrical Machining Engineers, Vol.52, No.131, 160-165, Nov. 2018.
3.	Tohru Ishida : Deep Hole Fabrication on Inside Wall of Another Hole by Means of Electrical Discharge Machining, Journal of the Japan Society for Precision Engineering, Vol.81, No.11, 995-999, Nov. 2015. (Keyword) electrical discharge machining / deep hole / pipeline / hydraulic equipment / pneumatic components / electrical discharge machining / deep hole / pipeline / hydraulic equipment / pneumatic components (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.81.995 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679807192448 ● Summary page in Scopus @ Elsevier: 2-s2.0-84948699558 (DOI: 10.2493/jjspe.81.995, CiNii: 1390282679807192448, Elsevier: Scopus)
4.	Tohru Ishida : MAKINO MILLING MACHINE CO., LTD., Journal of the Japan Society for Precision Engineering, Vol.81, No.11, 979-982, Nov. 2015. (Link to Publication Site) ● Publication site (DOI): 10.2493/jjspe.81.979 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204830479744 ● Summary page in Scopus @ Elsevier: 2-s2.0-84948694940 (DOI: 10.2493/jjspe.81.979, CiNii: 1390001204830479744, Elsevier: Scopus)
5.	Tohru Ishida : 放電加工による穴内面への穴創成法の開発, 先端加工技術, No.96, 13-15, Jun. 2015.
6.	Tohru Ishida and 竹内芳美 : 放電加工を用いた断面変化穴の創成, 電気加工技術, Vol.38, No.118, 7-13, May 2014.
7.	Tohru Ishida : 16・4 電気・化学加工 < 機械工学年鑑 16.加工学・加工機器 >, Journal of the Japan Society of Mechanical Engineers, Vol.113, No.1101, 641, Aug. 2010. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205908242176 (CiNii: 1390001205908242176)
8.	Tohru Ishida : 超小型自律制御放電加工装置の開発, Journal of the Japan Society of Mechanical Engineers, Vol.113, No.1098, 392, May 2010. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205909257088 (CiNii: 1390001205909257088)
9.	Tohru Ishida and 竹内芳美 : 曲がり穴および断面変化穴の放電加工, 機械技術, Vol.52, No.6, 30-33, Jun. 2004.
10.	Tohru Ishida and 竹内芳美 : スライダクランク機構を用いた曲がり穴放電加工, 機械技術, Vol.51, No.8, 60-63, Aug. 2003.
11.	Tohru Ishida and 竹内芳美 : 圧縮コイルばねを利用した曲がり穴放電加工, 型技術, Vol.16, No.5, 74-79, Apr. 2001.

Proceeding of International Conference:

1.	Tohru Ishida, Yuya Sato, Kohji Yamada, Akira Mizobuchi and Yoshimi Takeuchi : Development of Microrobot with Electrical Discharge Machining Function ---Realization of Hydraulically Driven Self-Mobile Unit Using Working Fluid as Hydraulic Oil---, Proc. of 2022 Int. Symp. on Flexible Automation (2022ISFA), No.ISFA2022-042, 279-281, Yokohama, Japan, Jul. 2022.
2.	Ryuta Kubota, Tohru Ishida and Akira Mizobuchi : Thin Hole Creation inside a Hole by Means of Electrical Discharge Machining ---Effect of Guide Groove Shape on Created Hole Shape---, Proc. of 10th Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), No.G05 (82), 510-512, Kitakyushu, Japan, Nov. 2021.
3.	Takeshi Hamada, Akira Mizobuchi, Tashima Atsuyoshi, Keita Horimoto and Tohru Ishida : Trial Production of Recycled-Grinding Wheel for Wet Polishing using Spent Grinding Wheel, Proceedings of 18th International Conference on Precision Engineering, B-2-2, Nov. 2020. (Summary) Spent grinding wheel (SGW) is an industrial waste and is demanded to be recycled. Recycled-grinding wheel (RGW) which is recycled from discarded SGW, is experimentally produced by authors. The goals of RGW are to save a tool cost and to reduce an environmental load. In this study, RGW was produced by the abrasive grain of smashed SGW and the bonding material of PVA aqueous solution. Therefore, the material cost for producing RGW is very cheap. Furthermore, RGW reduces the emission amount of discarded SGW and has a good impact on the earth environment for using limited resources effectively. As experimental results, RGW was able to polish stainless steel. However, RGW was significantly susceptible to tap water for the low water-resisting property of PVA bonding material in polishing of stainless steel using wet type machine tool developed by authors. In addition, this paper was investigated a method utilizing cross-linking action by an organic titanium compound in order to improve the weak property of RGW.
4.	Tohru Ishida, Yusuke Kaide, Akira Mizobuchi and Yoshimi Takeuchi : Development of Curved Hole Electrical Discharge Machining Method ---Automatic Generation of Device Operating Command in Consideration of Realizing the Machining---, Proc. of the JSME 2020 Conf. on Leading Edge Manufacturing/Materials and Processing (LEM&P2020), No.LEMP2020-8600, 1-5, Cincinnati, Ohio, USA, Jun. 2020. (Link to Publication Site) ● Publication site (DOI): 10.1115/LEMP2020-8600 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85100926972 (DOI: 10.1115/LEMP2020-8600, Elsevier: Scopus)
5.	Izamshah Raja, Rasid Firdauz Abd Muhamad, Aziz Sanusi Abdul Mohd, Kasim Shahir Mohd, Akira Mizobuchi and Tohru Ishida : Experimental Investigation of Hybrid Rotary Ultrasonic Assisted Micro Drilling on Chemically Strengthened Glass, Feb. 2018.
6.	Tohru Ishida, Shohei Tahara, Shikitaro Ogawa, Akira Mizobuchi and Yoshimi Takeuchi : Hole Fabrication inside a Hole by Means of Electrical Discharge Machining ---Expansion of Machinable Hole Diameter---, Proc. of 9th Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), No.D32 (023), 1-5, Hiroshima, Japan, Nov. 2017. (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85041311711 (Elsevier: Scopus)
7.	Aziz Sanusi Abdul Mohd, Tohru Ishida, Yusuke Kaide, Chonggang Kim, Akira Mizobuchi and Yoshimi Takeuchi : Automated Teaching Process in Teaching Playback Method for Curved Hole Electrical Discharge Machining, Proceedings of International Conference on Design and Concurrent Engineering 2017 & Manufacturing Systems Conference (iDECON/MS2017), No.25, 1-4, Osaka, Japan, Sep. 2017.
8.	Chao Chen, Tohru Ishida, Shengdun Zhao, Xiaolan Han and Xuzhe Zhao : Numerical and Experimental Investigations of the Two-Step Clinching Process, Proceedings of International Conference on Design and Concurrent Engineering 2017 & Manufacturing Systems Conference (iDECON/MS2017), No.20, 1-9, Osaka, Japan, Sep. 2017.
9.	Kota Watanabe, Akira Mizobuchi and Tohru Ishida : Improvement of Chip Discharge in Drilling of Glass Plate Using Electroplated Diamond Tool with Eccentric Arm, Proceedings of Annual Conference on Engineering and Applied Science (2016 ACEAT), No.ACEAT-1017, 133-134, Kyoto, Nov. 2016.
10.	Kota Honda, Akira Mizobuchi and Tohru Ishida : Investigation of Grinding Fluid for Prevention of Chip Adhesion in Miniature Drilling of Glass Plate Using Electroplated Diamond Tool, Proceedings of 2nd International Conference on Machining, Materials and Mechanical Technologies (IC3MT2016), No.100, 1-4, Matsue, Oct. 2016. (Link to Publication Site) ● Publication site (DOI): 10.4028/www.scientific.net/KEM.749.52 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85028732508 (DOI: 10.4028/www.scientific.net/KEM.749.52, Elsevier: Scopus)
11.	Aziz Sanusi Abdul Mohd, Redzuwan Ikram Bahrin, Zaimi Muhammad, Izamshah Raja, Kasim Shahir Mohd, Ali Amran Md Mohd, Akira Mizobuchi and Tohru Ishida : Cutting Performance of Electroless Ternary Ni-W-P Coated Cutting Tools, Proceedings of International Conference on Design and Concurrent Engineering (iDECON2016), No.102, 1-4, Langkawi, Malaysia, Sep. 2016.
12.	Yuki Kagawa, Akira Mizobuchi and Tohru Ishida : Miniature Drilling of Chemically Strengthened Glass Plate Using Electroplated Diamond Tool, Proc. of 8th International Conference on Leading Edge Manufacturing in 21st Century (LEM21), No.E39 (0805), 1-3, Oct. 2015.
13.	Tohru Ishida, Naohiro Uchida, Jotaro Eto, Akira Mizobuchi and Yoshimi Takeuchi : Arc-Shaped Hole Fabrication inside a Hole by Means of Electrical Discharge Machining, Proc. of 8th Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), No.C26 (1108), 1-4, Kyoto, Japan, Oct. 2015.
14.	Tohru Ishida, Hiroki Masuda and Yoshimi Takeuchi : Fin Fabrication inside a Hole by Means of Electrical Discharge Machining and Reciprocating Block Slider Crank Mechanism ---Improvement of Machining Device and Verification of Its Potential---, Proc. of 15th Int. Conf. on Precision Engineering (ICPE2014), 690-691, Kanazawa, Ishikawa, Japan, Jul. 2014.
15.	Tohru Ishida, Yuichi Okahara, Masahiko Kita, Akira Mizobuchi, Keiichi Nakamoto and Yoshimi Takeuchi : Fundamental Study on Hole Fabrication inside a Hole by Means of Electrical Discharge Machining, Proc. of 7th Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), 373-376, Matsushima, Japan, Nov. 2013.
16.	Keiichi Nakamoto, Ryo Nishiyama, Tohru Ishida and Yoshimi Takeuchi : 5-Axis Control Ultraprecision Dexterous Micromachining of Mobius Ring, Proc. of 13th Int. Conf. of European Society for Precision Engineering and Nanotechnology (euspen2013), Vol.2, 64-67, Berlin, Germany, May 2013.
17.	Tohru Ishida, Koji Teramoto, Keiichi Nakamoto and Yoshimi Takeuchi : Application of Ultraprecision Microgrooves to Dental Implant and Blood Inspection, Proc. of 1st CIRP Conf. on Biomanufacturing (CIRP-BioM2013), 147-151, Tokyo, Japan, Mar. 2013.
18.	Yuma Tani, Tohru Ishida, Masahiko Kita, Keiichi Nakamoto and Yoshimi Takeuchi : Study on 2+1 Axis Conrol Electrical Discharge Machining of 3-dimensional Cross Section's Changing Hole, Proc. of 16th Int. Conf. on Mechatronics Technology (ICMT2012), 59-62, Tianjin, Chaina, Oct. 2012.
19.	Akira Mizobuchi, Yuki Ouchi, Koji Hashimoto, Junichi Hino, Hiromu Iwata, Shinnosuke Bando and Tohru Ishida : Behavior of Cutting Force of Tipped-Saw Treated by Tensioning Method in Sawing of Steel, Proceedings of 10th International Conference on Progress of Machining Technology (ICPMT2012), 97-100, Sep. 2012.
20.	Akira Mizobuchi, Kensuke Uemoto, Tohru Ishida and Hitoshi Ogawa : Effect of Tool Geometry of Electroplated Diamond Tool for Chip Treatment in Through-Hole Drilling of Glass Plate, Proceedings of 10th International Conference on Progress of Machining Technology (ICPMT2012), 57-60, Sep. 2012.
21.	Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Microgrooving with Flat-ends for Hard Materials, Proc. of 12th Int. Conf. of European Society for Precision Engineering and Nanotechnology (euspen2012), Vol.2, 96-99, Stockholm, Sweden, Jun. 2012.
22.	Keiichi Nakamoto, Koji Kubota, Tohru Ishida and Yoshimi Takeuchi : Development of 5-axis Control CAM System for Multi-tasking Machine Tools, Proc. of 45th CIRP Conf. on Manufacturing Systems (CIRP-CMS2012), 266-270, Athens, Greece, May 2012.
23.	Keiichi Nakamoto, Takumi Fujimoto, Yasuhiro Kawaguchi, Tohru Ishida and Yoshimi Takeuchi : Dexterous Machining of Chain-Shapes by Employing a Multi-Tasking Machine Tool, Proc. of 15th Int. Conf. on Mechatronics Technology (ICMT2011), 59-62, Melbourne, Victoria, Australia, Dec. 2011.
24.	Ryo Nishiyama, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : 5-Axis Control Dexterous Ultraprecision Micromilling of Ruled Surface with Side Cutting Edge, Proc. of 4th Int. Conf. of Asian Society for Precision Engineering and Nanotechnology (ASPEN2011), No.0055, 1-5, HongKong, China, Nov. 2011.
25.	Xinrui Tang, Keiichi Nakamoto, Kazushi Obata, Tohru Ishida and Yoshimi Takeuchi : Ultraprecision Microgrooving on Hard Material with Tool Wear Suppression, Proc. of 26th Annual Meeting of American Society for Precision Engineering (2011ASPE), No.3293, 1-4, Denver, Colorado, USA, Nov. 2011.
26.	Taichi Fujii, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Precision Complex Machining of Glass Lens Mold with Fresnel Shape, Proc. of 11th Int. Conf. of Europian Society for Precision Engineering and Nanotechnology (euspen2011), Vol.2, 505-508, Lake Como, Italy, May 2011.
27.	Yuto Misawa, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Creation of Microgroove with Two Flat-Ends on Hard-Brittle Materials, Proc. of 6th Int. Conf. on MicroManufacturing (ICOMM2011), 615-619, Tokyo, Japan, Mar. 2011.
28.	Tang Xinrui, Kazushi Obata, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Ultraprecision Low-wear Micro Curved Grooving of Hard Material, Proc. of 6th Int. Conf. on MicroManufacturing (ICOMM2011), 605-609, Tokyo, Japan, Mar. 2011.
29.	Shingo Yamamoto, Minoru Hirano, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Precision Machining of Non-Axisymmetric Aspheric Glass Lens Mold with Micro Fresnel Structure, Proc. of ASPE 2011 Spring Topical Meeting, 24-28, Charlotte, North Carolina, USA, Mar. 2011.
30.	Yu Zhangyoung, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Structure Design of Machine Tool in Consideration with Joint Damping at the Conceptual and Fundamental Stage, Proc. of 14th Int. Conf. on Mechatronics Technology (ICMT2010), 253-257, Osaka, Japan, Nov. 2010.
31.	Hirotaka Hasegawa, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Highly Efficient Cutting of Aspherical Surface of Cemented Carbide by Rotational Diamond Tool with New Chamfer, Proc. of 14th Int. Conf. on Mechatronics Technology (ICMT2010), 221-225, Osaka, Japan, Nov. 2010.
32.	Yasuaki Koyama, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Development of CAPP/CAM system for Ultraprecision Micromachining ---Process Planning for High-Aspect-Ratio Structures---, Proc. of 14th Int. Conf. on Mechatronics Technology (ICMT2010), 195-199, Osaka, Japan, Nov. 2010.
33.	Daichi Hamada, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Dexterous Machining for a Complicated Shape with Nested Structure, Proc. of 14th Int. Conf. on Mechatronics Technology (ICMT2010), 27-31, Osaka, Japan, Nov. 2010.
34.	Noriyuki Natsume, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Dexterous Machining of Complicated Shape Consisting of Bended Columns, Proc. of 14th Int. Conf. on Mechatronics Technology (ICMT2010), 24-27, Osaka, Japan, Nov. 2010.
35.	Yuto Misawa, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Creation of Microgroove with Two Flat-Ends for Hard Material, Proc. of 25th Annual Meeting of American Society for Precision Engineering (2010ASPE), 447-450, Atlanta, Georgia, USA, Nov. 2010.
36.	Tatsuya Hikichi, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Tool Path Generation for 5-Axis Control Machining by Considerating Tool Attitude and Attitude Variation, Proc. of 4th CIRP Int. Conf. on High Performance Cutting (CIRP-HPC2010), Vol.2, 139-144, Gifu, Japan, Oct. 2010.
37.	Koji Hasegawa, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Comparison of Path Generation Method for Efficient 5-Axis Control Drilling of a Large Number of Holes, Proc. of 4th CIRP Int. Conf. on High Performance Cutting (CIRP-HPC2010), Vol.2, 133-138, Gifu, Japan, Oct. 2010.
38.	Tang Xinrui, Miki Yoshinaga, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Ultraprecision Microgrooving of Hard Material by Means Cutting Point Swivel Machining, Proc. of Int. Conf. on Precision Engineering (ICoPE2010 & 13th ICPE), 36-40, Singapore, Jul. 2010.
39.	Umehara Takeshi, Keiichi Nakamoto, Tohru Ishida, Koji Teramoto and Yoshimi Takeuchi : Development of a Process Planning System for 3+2 Control Rough Milling, Proc. of 2010 Int. Symp. on Flexible Automation (2010ISFA), No.JPL-2660, 1-6, Tokyo, Japan, Jul. 2010.
40.	Yu Zhangyoung, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Design Assistance for Machine Tool Structure in the Conceptual and Fundamental Stage, Proc. of 2010 Int. Symp. on Flexible Automation (2010ISFA), No.JPL-2546, 1-7, Tokyo, Japan, Jul. 2010.
41.	Makoto Sono, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Highly Accurate 5-Axis Control Ultraprecision Micromachining by Tool Setting Error Compensation, Proc. of 2nd CIRP Int. Conf. on Process Machine Interactions (CIRP-PMI2010), No.MM09, 1-8, Vancouver, British Columbia, Canada, Jun. 2010.
42.	Takehisa Koizumi, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Rapid Tool Path Generation for 5-axis Control Machining of Complicated Surfaces, Proc. of 2nd CIRP Int. Conf. on Process Machine Interactions (CIRP-PMI2010), No.CAM04, 1-9, Vancouver, British Columbia, Canada, Jun. 2010.
43.	Takanobu Oba, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : 5-Axis Control Ultraprecision Micromilling by Means of a Developed CAPP/CAM System, Proc. of 10th Int. Conf. of European Society for Precision Engineering and Nanotechnology (euspen2010), Vol.2, 65-68, Delft, Netherlands, Jun. 2010.
44.	Takashi Kotani, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : CAM System Development for Multi-tasking Machine Tools, Proc. of 43rd CIRP Int. Conf. on Manufacturing Systems (CIRP-ICMS2010), 1044-1051, Vienna, Austria, May 2010.
45.	Tohru Ishida, Masahiko Kita, Koji Teramoto, Keiichi Nakamoto and Yoshimi Takeuchi : Verification of Basic Performance of Size-Reduced Automatic Discharge Gap Controller for Curved Hole Electrical Discharge Machining, Proc. of 16th Int. Symp. for Electromachining (ISEM XVI), 127-132, Shanghai, China, Apr. 2010.
46.	Eiki Ishiguro, Tohru Ishida, Masahiko Kita, Keiichi Nakamoto and Yoshimi Takeuchi : Development of CAD/CAM System for Cross Section's Changing Hole Electrical Discharge Machining -Formulation of Post Processor-, Proc. of 5th Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), 251-256, Osaka, Japan, Dec. 2009.
47.	Seiji Nagasawa, Tohru Ishida, Masahiko Kita, Keiichi Nakamoto and Yoshimi Takeuchi : Basic Performance Analysis of Cooling Pipe with a Changing Cross Section, Proc. of 5th Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), 213-216, Osaka, Japan, Dec. 2009.
48.	Yasuhiro Kawaguchi, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Artistic Machining by Means of Multi-tasking Machine, Proc. of 5th Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), 145-148, Osaka, Japan, Dec. 2009.
49.	Koji Hasegawa, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Efficient 5-axis Control Drilling for a Large Number of Holes, Proc. of 5th Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), 113-116, Osaka, Japan, Dec. 2009.
50.	Tatsuya Hikichi, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Tool Path Generation for 5-Axis Control Machining Considering the Quality of Machined Surface, Proc. of 5th Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), 107-112, Osaka, Japan, Dec. 2009.
51.	Koji Kubota, Takashi Kotani, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Development of CAM System for Multi-tasking Machine Tools, Proc. of 5th Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), 49-54, Osaka, Japan, Dec. 2009.
52.	Yu Zhangyong, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Study on an Interactive System for Conceptual and Basic Design of Machine Tool Structure, Proc. of 5th Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), 33-38, Osaka, Japan, Dec. 2009.
53.	Takehisa Koizumi, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Tool Path Generation for 5-Axis Control Milling Based on Area Division Method, Proc. of 5th Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), 15-20, Osaka, Japan, Dec. 2009.
54.	Tang Rui Xin, Miki Yoshinaga, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : High Efficiency Machining of Hard Material by Non-rotational Diamond Tool with Chamfer, Proc. of 3rd Int. Conf. of Asian Society for Precision Engineering and Nanotechnology (ASPEN2009), No.2B2, 1-4, Kitakyushu, Japan, Nov. 2009.
55.	Yuto Misawa, Keiichi Nakamoto, Tohru Ishida and Yoshimi Takeuchi : Creation of Microgroove with Flat-end for Difficult-to-cut Materials, Proc. of 3rd Int. Conf. of Asian Society for Precision Engineering and Nanotechnology (ASPEN2009), No.2B1, 1-4, Kitakyushu, Japan, Nov. 2009.
56.	Tohru Ishida and Yoshimi Takeuchi : Direct Measurement of Electrode Movement during Electrical Discharge Machining by Means of Automatic Discharge Gap Controller, Proc. of 13th Int. Conf. on Mechatronics Technology (ICMT2009), No.03-09, 1-6, Cebu, Philippines, Oct. 2009.
57.	Yoshimi Takeuchi, Makoto Sono, Tohru Ishida and Keiichi Nakamoto : Tool Setting Error Compensation for 5-Axis Control Ultraprecision Machining, Proc. of 9th Int. Conf. of European Society for Precision Engineering and Nanotechnology (euspen2009), Vol.2, 42-45, San Sebastian, Spain, Jun. 2009.
58.	Shingo Yamamoto, Taichi Fujii, Minoru Hirano, Tetsuro Shibukawa, Tohru Ishida and Yoshimi Takeuchi : Machining of Glass Lens Mold with Minute Structures by Grinding and Cutting, Proc. of 23rd Annual Meeting of American Society for Precision Engineering (2008ASPE) and 12th Int. Conf. on Precision Engineering (12th ICPE), 640-643, Portland, Oregon, USA, Oct. 2008.
59.	Takanobu Oba, Tohru Ishida and Yoshimi Takeuchi : Development of CAPP/CAM System for Ultraprecision Micromachining, Proc. of 23rd Annual Meeting of American Society for Precision Engineering (2008ASPE) and 12th Int. Conf. on Precision Engineering (12th ICPE), 626-629, Portland, Oregon, USA, Oct. 2008.
60.	Masahiko Kita, Tohru Ishida, Koji Teramoto and Yoshimi Takeuchi : Size Reduction and Performance Improvement of Automatic Discharge Gap Controller for Curved Hole Electrical Discharge Machining, Proc. of 7th Int. Conf. on Machine Automation (ICMA2008), 121-126, Awaji, Japan, Sep. 2008.
61.	Yoshimi Takeuchi, Norikazu Kitamura and Tohru Ishida : 5-Axis Control Ultraprecision Machining of Micro Inducer in Micro Axial-flow Pump, Proc. of 10th Anniversary Int. Conf. of European Society for Precision Engineering and Nanotechnology (euspen2008), Vol.2, 16-19, Zurich, Switzerland, May 2008.
62.	Shingo Yamamoto, Tohru Ishida, Toshiyuki Enomoto and Yoshimi Takeuchi : Accuracy Improvement of Ultraprecision Micromachining by Detecting Non-Rotational Diamond Cutting Tool Tip Position, Proc. of 4th Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), 751-754, Fukuoka, Japan, Nov. 2007.
63.	Takanobu Ohba, Tohru Ishida and Yoshimi Takeuchi : Development of CAPP System for Ultraprecision Micromachining, Proc. of 4th Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), 747-750, Fukuoka, Japan, Nov. 2007.
64.	Takehiro Inoue, Tohru Ishida and Yoshimi Takeuchi : Rapid 5-Axis Control Tool Path Generation by Means of Interference-free Space Concept, Proc. of 4th Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), 489-494, Fukuoka, Japan, Nov. 2007.
65.	Takashi Kotani, Tohru Ishida and Yoshimi Takeuchi : Development of CAM System for Machining Complexes, Proc. of 4th Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), 485-488, Fukuoka, Japan, Nov. 2007.
66.	Koji Teramoto, Jun'ichi Kaneko, Tohru Ishida and Yoshimi Takeuchi : A Framework of Compositional Machining Simulation for Versatile Machining Simulation, Proc. of 4th Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), 461-464, Fukuoka, Japan, Nov. 2007.
67.	Tohru Ishida, Takeshi Nakajima, Masahiko Kita, Koji Teramoto and Yoshimi Takeuchi : Creation of Long Curved Hole of 10mm in Diameter by Means of Electrical Discharge Machining Using a Size-Reduced In-Pipe Movable Mechanism, Proc. of 11th Int. Conf. on Mechatronics Technology (ICMT2007), 380-385, Ulsan, Korea, Nov. 2007.
68.	Yasufumi Ueda, Tohru Ishida and Yoshimi Takeuchi : Non-Uniform B-Spline Interpolated CL Data Generation for 5-Axis Control Machining Utilizing Interference-Free Space, Proc. of 11th Int. Conf. on Mechatronics Technology (ICMT2007), 219-224, Ulsan, Korea, Nov. 2007.
69.	Haruki Ishibashi, Tohru Ishida and Yoshimi Takeuchi : Development of Polishing Simulator for Optical Elements, Proc. of 22nd Annual ASPE (American Society for Precision Engineering) Meeting (2007ASPE), 477-480, Dallas, Texas, USA, Oct. 2007.
70.	Taichi Fujii, Minoru Hirano, Tetsuro Shibukawa, Tohru Ishida and Yoshimi Takeuchi : Precision Machining of Glass Lens Mold with Minute Structures, Proc. of 22nd Annual ASPE (American Society for Precision Engineering) Meeting (2007ASPE), 406-409, Dallas, Texas, USA, Oct. 2007.
71.	Takashi Sasaki, Tohru Ishida, Koji Teramoto, Tomohiko Kawai and Yoshimi Takeuchi : Ultraprecision Micromilling of Small 3-D Parts with Complicated Shape, Proc. of 7th Int. Conf. of European Society for Precision Engineering and Nanotechnology (euspen2007), Vol.2, 388-391, Bremen, Germany, May 2007.
72.	Tohru Ishida, Takeshi Nakajima, Masahiko Kita, Koji Teramoto and Yoshimi Takeuchi : Creation of Curved Holes of 5mm in diameter by Means of Electrical Discharge Machining, Proc. of 15th Int. Symp. for Electromachining (ISEM XV), 51-56, Pittsburgh, Pennsylvania, USA, Apr. 2007.
73.	Yoshimi Takeuchi, Tohru Ishida and Koji Teramoto : Applications of Ultraprecision Micromachining Technology to Bio Fields, Proc. of 10th Int. Conf. on Mechatronics Technology (ICMT2006), No.MN-01, 1-6, Mexico City, Mexico, Nov. 2006.
74.	Koji Teramoto, Jun'ichi Kaneko, Tohru Ishida and Yoshimi Takeuchi : A Fundamental Study of Compositional Machining Simulation, Proc. of 8th Int. Conf. on Progress of Machining Technology (ICPMT2006), 317-320, Matsue, Japan, Nov. 2006.
75.	Takamasa Moriya, Tohru Ishida, Koji Teramoto and Yoshimi Takeuchi : Creation of V-Shaped Curved Microgrooves with Two Flat-Ends by Non-Rotational Cutting Tools, Proc. of 21st Annual ASPE (American Society for Precision Engineering) Meeting (2006ASPE), 543-546, Monterey, California, USA, Oct. 2006.
76.	Koji Teramoto, Hirofumi Yoneda, Yasufumi Ueda, Tohru Ishida, Yoshimi Takeuchi and Tetsuro Shibukawa : Phased Construction of CAM System for Newly Developed Machine Tools, Proc. of 2006 Int. Symp. on Flexible Automation (2006ISFA), 420-423, Osaka, Japan, Jul. 2006.
77.	Koji Teramoto, Masatoshi Morikawa, Tohru Ishida and Yoshimi Takeuchi : 5-Axis Control Tool Path Generation Using Curved Surface Interpolation, Proc. of 2nd CIRP Int. Conf. on High Performance Cutting (CIRP-HPC2006), No.68, 1-10, Vancouver, British Columbia, Canada, Jun. 2006.
78.	Tohru Ishida, Yohsuke Nakajima, Yasuhito Miyake, Koji Teramoto and Yoshimi Takeuchi : Development of Electrode Motion Control Device for Electrical Discharge Curved Hole Machining, Proc. of 39th CIRP Int. Seminar on Manufacturing Systems (CIRP-ISMS2006), 307-312, Ljubljana, Slovenia, Jun. 2006.
79.	Yoshimi Takeuchi, Yousuke Yoneyama, Tohru Ishida, Koji Teramoto and Tomohiko Kawai : 6-Axis Control Ultraprecision Microgrooving on Sculptured Surface with Non-rotational Cutting Tool, Proc. of 6th Int. Conf. of European Society for Precision Engineering and Nanotechnology (euspen2006), 104-107, Baden bei Wien, Austria, May 2006.
80.	Takeshi Nakajima, Tohru Ishida, Masahiko Kita, Koji Teramoto and Yoshimi Takeuchi : Size Reduction of In-pipe Movable Mechanism for Electrical Discharge Curved Hole Machining, Proc. of 9th Int. Conf. on Mechatronics Technology (ICMT2005), No.ICMT-219, 1-6, Kuala Lumpur, Malaysia, Dec. 2005.
81.	Koji Teramoto, Ryuichi Tanaka, Tohru Ishida and Yoshimi Takeuchi : Thermal State Visualization of Machining Workpiece by Means of a Sensor-configured Heat Conduction Simulation, Proc. of 3rd Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), Vol.3, 921-926, Nagoya, Japan, Oct. 2005.
82.	Takuya Nishioka, Tohru Ishida, Masahiko Kita, Koji Teramoto and Yoshimi Takeuchi : Electrical Discharge Curved Hole Machining by Means of In-pipe Movable Mechanism with Machining Direction Determining Function, Proc. of 3rd Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), Vol.2, 787-792, Nagoya, Japan, Oct. 2005.
83.	Koichi Morishige, Yusuke Ueki, Tohru Ishida and Yoshimi Takeuchi : Automation of Polishing Process with Industrial Robots -Polishing Path Generation in Consideration of Surface Curvature-, Proc. of 3rd Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), Vol.1, 109-114, Nagoya, Japan, Oct. 2005.
84.	Takeshi Umehara, Koji Teramoto, Tohru Ishida and Yoshimi Takeuchi : Tool Posture Determination for 5-axis Control Machining by Area Division Method, Proc. of 3rd Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), Vol.1, 97-102, Nagoya, Japan, Oct. 2005.
85.	Koji Teramoto, Ryuichi Tanaka, Tohru Ishida and Yoshimi Takeuchi : On-site Visualization of Workpiece State for Enhancing the Recognition Ability of Machining Operators, Proc. of 1st Int. Conf. on Changeable, Agile, Reconfigurable and Virtual Production (CARV2005), 207-214, Garching, Bayern, Germany, Sep. 2005.
86.	Tohru Ishida and Yoshimi Takeuchi : Creation of Curved Holes with Various Curvatures by Means of Electrical Discharge Machining and Slider Crank Chains, Proc. of 38th CIRP Int. Seminar on Manufacturing Systems (CIRP-ISMS2005), No.06007150, 1-6, Florianopolis, Santa Catarina, Brazil, May 2005.
87.	Fumihito Andou, Akiko Yamamoto, Tomohiko Kawai, Hitoshi Ohmori, Tohru Ishida and Yoshimi Takeuchi : Microchannel Array Creation by Means of Ultraprecision Machining, Proc. of 5th Int. Conf. on Machine Automation (ICMA2004), 251-256, Osaka, Japan, Nov. 2004.
88.	Takeshi Nakajima, Tohru Ishida, Masahiko Kita, Koji Teramoto and Yoshimi Takeuchi : Development of Curved Hole Machining Method -Size Reduction of Hole Diameter-, Proc. of 5th Int. Conf. on Machine Automation (ICMA2004), 245-250, Osaka, Japan, Nov. 2004.
89.	Koji Teramoto, Masahiko Onosato, Tohru Ishida and Yoshimi Takeuchi : On-machine Estimation of Workpiece Deformation by Combining Locally Measured Strain and Elastic Simulation, Proc. of 8th Int. Conf. on Mechatronics Technology (ICMT2004), 437-442, Hanoi, Vietnam, Nov. 2004.
90.	Tohru Ishida, Seiichi Kogure, Yasuhito Miyake and Yoshimi Takeuchi : Creation of Long Curved Hole by Means of Electrical Discharge Machining Using an In-pipe Movable Mechanism, Proc. of 14th Int. Symp. for Electromachining (ISEM XIV), No.IS34, 1-10, Edinburgh, Scotland, UK, Apr. 2004.
91.	Tohru Ishida, Daisuke Mukoyama, Yoshimi Takeuchi, Shigetaka Ota, Takamitsu Nishikiori, Masahiko Morita and Akihiro Kojima : Development of Self-movable Drilling Robot inside a Pipe, Proc. of 7th Int. Conf. on Mechatronics Technology (ICMT2003), 109-114, Taipei, Taiwan, Dec. 2003.
92.	Tohru Ishida, Toshiyuki Hosoda, Takahiro Fukuda and Yoshimi Takeuchi : In-Process Measurement of Electrode Motion in EDM by Means of Automatic Discharge Gap Controller, Proc. of 2nd Int. Conf. on Leading Edge Manufacturing in 21st Century (LEM21), 965-970, Niigata, Japan, Nov. 2003. (Summary) The study deals with the development of an in-process and direct measuring method for the electrode motion generated by the automatic discharge gap controller. The controller is equipped with an electrode for electrical discharge machining and an actuator made of shape memory alloy, and can autonomously maintain a stable electrical discharge machining with its electrode positioned properly and continuously. However, the electrode motion cannot be directly measured due to a minute and high-speed motion in a working fluid during electrical discharge machining. This means that there is no way to optimize the controller and to even prove that the controller can move its electrode actually. Therefore, the authors have developed an in-process and direct measuring method of the electrode motion of the controller. From experimental results, it is found that the developed method has the ability to measure the electrode motion. (Keyword) In-process measurement / Electrical discharge machining / Discharge gap / Shape memory alloy (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282680876662144 (CiNii: 1390282680876662144)
93.	Daisuke Mukoyama, Tohru Ishida, Yoshimi Takeuchi, Takamitsu Nishikiori and Shigetaka Ota : Self-movable Drilling robot inside a Pipe -Development of Drilling Mechanism-, Proc. of 3rd China-Japan Symp. on Mechatronics (CJSM2002), 338-341, Chengdu, China, Sep. 2002.
94.	Tohru Ishida, Yuichi Mochizuki and Yoshimi Takeuchi : Fin Fabrication inside a Hole by Means of Electrical Discharge Machining and Reciprocating Block Slider Crank Mechanism, Proc. of 2002 Japan-USA Symp. on Flexible Automation (2002JUSFA), Vol.1, 349-355, Hiroshima, Japan, Jul. 2002.
95.	Tohru Ishida and Yoshimi Takeuchi : Development of Automatic Discharge Gap Controller for Curved Hole Machining, Proc. of 13th Int. Symp. for Electromachining (ISEM XIII), Vol.1, 63-73, Bilbao, Spain, May 2001.
96.	Tohru Ishida and Yoshimi Takeuchi : Curved Hole Machining by Means of Electrical Discharge Phenomena and Electrode Feed Mechanism, Proc. of 2000 Japan-USA Symp. on Flexible Automation (2000JUSFA), Vol.2, 1283-1288, Ann Arbor, Michigan, USA, Jul. 2000.

Proceeding of Domestic Conference:

1.	Akira Mizobuchi, GOMI Koichiro and Tohru Ishida : 廃砥石のゼロエミッション化に向けたポリビニルアルコールのみを結合剤とした3R砥石の作製, IMEC2024(第20回国際工作機械技術者会議)論文集(ポスターセッション論文抜粋版), 60-61, Nov. 2024.
2.	Takimura Kagura, Tanaka Kohei, Akira Mizobuchi and Tohru Ishida : 穴内面穴放電加工法の開発 -穴あき板ばねによる穴内面穴形状の真直化-, 2023年度日本設計工学会四国支部研究発表講演会講演論文集, No.08, 1-2, Mar. 2024.
3.	Shuma Hirai, 牧本宜大, Akira Mizobuchi, 小川仁 and Tohru Ishida : 高音域による切削工具の摩耗量推定手法の提案, 2023年度精密工学会秋季大会学術講演会講演論文集, 69-70, Sep. 2023. (Summary) 本報告の目的は，簡単に取得可能で信号処理が容易な音信号を用いて旋盤の工具摩耗量を迅速に検知する手法の開発である．音信号を使用する場合，対象装置と環境騒音の分離が課題であることから，その分離を不要とするため，様々な環境騒音の影響を受けにくい 10k ~ 20kHz の周波数帯(以下，高音域)での工具摩耗量の推定手法を検討した．音信号をスマホでフーリエ変換し，正常なチップとの音信号のレベル差より摩耗量の推定可否を検証した．
4.	Tohru Ishida, Miyake Masaki, JUNMING ZHUANG and Akira Mizobuchi : 弾性体支持電極を用いた放電加工 -弾性体への押付力が加工速度に及ぼす影響-, 日本機械学会2023年度年次大会講演論文集, No.J132-07, 1-3, Sep. 2023.
5.	Koichiroh Gomi, Akira Mizobuchi, Tohru Ishida and 川添洋 : ポリビニルアルコールを結合剤とする3R砥石の作製方法の検討, 2023年度砥粒加工学会学術講演会講演論文集, 334-335, Aug. 2023. (Summary) 本研究室では，使用済み砥石の削減(Reduce)，再利用(Reuse)，有効利用(Recycle)を目的とした3R砥石の作製を試みた．結合剤は安価で環境負荷の低いポリビニルアルコール(PVA)水溶液を用いた．PVA水溶液は可溶であり，砥石の損耗は著しく大きい．この水溶液の耐水性をPVAの物性値の変更や架橋剤の添加といった簡易的な方法で改善し，湿式研磨に適する砥石の作製方法を検討した．
6.	Akira Mizobuchi, Tohru Ishida and Tappei Oyamada : ガラス板への穴加工における電着工具形状による加工液の流れと切りくず排出状況, 2022年度日本設計工学会四国支部研究発表講演会講演論文集, A04, Mar. 2023.
7.	Tohru Ishida, Eiji Kameda, JUNMING ZHUANG and Akira Mizobuchi : 穴内面穴放電加工法の開発 -深穴に対する仕上げ加工-, 電気加工学会全国大会(2022)講演論文集, 11-12, Nov. 2022.
8.	Akira Mizobuchi, Tohru Ishida and 田島淳吉 : ステンレス大型鋼板の湿式研磨加工技術の開発, 第19回国際工作機械技術者会議論文集(ポスターセッション論文抜粋版),日本工作機械工業会&東京ビックサイト, 56-57, Nov. 2022.
9.	Tohru Ishida, JUNMING ZHUANG, Yusuke Takamori and Akira Mizobuchi : 弾性体支持電極を用いた放電加工(通常電極との比較を可能とする装置の開発), 日本機械学会第14回生産加工・工作機械部門講演会予稿集, No.C07, 267-270, Oct. 2022.
10.	Tohru Ishida, Katsuya Fujiwara, Junji Matsushita, 北正彦, Akira Mizobuchi and 竹内芳美 : 曲がり穴放電加工用マイクロロボットの開発 -自律的放電加工機能を有した方向制御装置による曲がり穴加⼯の実現-, 日本機械学会2022年度年次大会講演論文集, No.J131-08, 1-4, Sep. 2022.
11.	Akira Mizobuchi, Tohru Ishida and Tappei Oyamada : ガラス板への小径深穴加工におけるストレート面付き工具の切りくず付着の改善方法, 2021年度日本設計工学会四国支部研究発表講演会講演論文集, 29-30, Mar. 2022. (Summary) 本報告では，工具への切りくず付着抑制のため，加工液の流動を活発にする工具形状を考案した.また，考案した工具を用いた加工について流体解析を行い，加工液の流動を調査した. 最後に，考案した工具でアスペクト比10の小径深穴加工を行い，切りくず付着の程度を調査した.
12.	Akira Mizobuchi, Tohru Ishida, 田島淳吉 and Hiyohgo Miyauchi : 有機チタン化合物を添加させた再生砥石の作製条件の検討, 2021年度日本設計工学会四国支部研究発表講演会講演論文集, 27-28, Mar. 2022. (Summary) 本研究では，統計学的考えを採用しているタグチメソッドを利用して損壊量を抑えて，湿式研磨ができる砥石の開発を目的とする.
13.	Akira Mizobuchi, Tohru Ishida, 田島淳吉 and Keita Horimoto : 四ホウ酸ナトリウムの添加による再生砥石の耐水性の改善, 2021年度日本設計工学会四国支部研究発表講演会講演論文集, 25-26, Mar. 2022. (Summary) 本研究では，再生砥石の耐水性を改善するため，四ホウ酸ナトリウム(ホウ砂)を添加した再生砥石を作製し，この砥石の耐水性および研磨性能を調査した.
14.	Tohru Ishida, Yusuke Takamori, JUNMING ZHUANG and Akira Mizobuchi : 穴内面穴放電加工における電極挙動の可視化, 電気加工学会全国大会(2021)講演論文集, 75-76, Nov. 2021.
15.	Tohru Ishida, Fuki Koyama, Yusuke Takamori and Akira Mizobuchi : 穴内面穴放電加工法の開発 -仕上げ加工の実現-, 日本機械学会2021年度年次大会講演論文集, No.J133-14, 1-3, Sep. 2021.
16.	Tohru Ishida, Katsuya Fujiwara, 北正彦, Akira Mizobuchi and 竹内芳美 : 曲がり穴放電加工用マイクロロボットの開発 -自律的放電加工機能を有した油圧駆動型管内自走装置による加工の実現-, 日本機械学会2021年度年次大会講演論文集, No.J133-13, 1-3, Sep. 2021.
17.	Hiyohgo Miyauchi, Akira Mizobuchi, 田島淳吉 and Tohru Ishida : ステンレス鋼板の湿式研磨加工における廃砥石を使用した再生砥石の試作と研磨性能, 2021年度砥粒加工学会学術講演会講演論文集, 228-229, Sep. 2021. (Summary) 本報では，再生砥石の耐水性を改善するため，PVA 水溶液に有機チタン化合物を添加した.PVA 水溶液と有機チタン化合物の架橋反応を利用した砥石の試作およびこの砥石の研磨性能を検討した.
18.	Tappei Oyamada, Akira Mizobuchi and Tohru Ishida : ガラス板への小径深穴加工における改良型ストレート面付き工具の切りくず排出性, 2021年度砥粒加工学会学術講演会講演論文集, 47-48, Sep. 2021. (Summary) 本報告では，加工液の流動を改善する工具形状を検討し，この工具での切りくず排出を調査した. また，CFD シミュレーションによる流体解析を行い，加工液の流速分布から，工具形状と加工液の流動を調査した.
19.	Keita Horimoto, Akira Mizobuchi, 田島淳吉 and Tohru Ishida : 廃砥石を再利用したビトリファイドボンド砥石の作製, 2021年度砥粒加工学会学術講演会講演論文集, 41-42, Sep. 2021. (Summary) 本報では，再生砥石の耐水性を改善するため，PVA 水溶液にホウ砂を添加した再生砥石の作製を試み，この砥石の研磨性能を調査した.
20.	Tohru Ishida, Yuya Sato, Kohji Yamada, Akira Mizobuchi and 竹内芳美 : 曲がり穴放電加工用マイクロロボットの開発(加工液を作動油として用いた油圧駆動型管内自走ユニットの実現), 日本機械学会2020年度年次大会講演論文集, No.S13304, 1, Sep. 2020.
21.	Satoshi Yamamoto, Akira Mizobuchi and Tohru Ishida : 電気泳動現象を用いた補綴歯科用研磨バー作製時の諸条件の影響, 日本設計工学会四国支部令和元年度四国支部研究発表講演会特別講演会・研究発表講演会概要集, 36-37, Mar. 2020.
22.	Keita Horimoto, Akira Mizobuchi and Tohru Ishida : 磁石による磁気吸着機能を用いたドリルに巻付く切粉の除去方法, 日本設計工学会四国支部令和元年度四国支部研究発表講演会特別講演会・研究発表講演会概要集, 42-43, Mar. 2020.
23.	Tohru Ishida, Shuya Tsukamoto, Yuhei Tsunekuni, Akira Mizobuchi and 竹内芳美 : 穴内面穴放電加工法の開発 -異形断面穴の加工による形状誤差の検証-, 電気加工学会全国大会(2019)講演論文集, 51-52, Nov. 2019.
24.	Tohru Ishida, Yusuke Kaide, Akira Mizobuchi and 竹内芳美 : 曲がり穴放電加工法の開発(加工の実現を考慮した装置動作指令の自動生成), 日本機械学会第13回生産加工・工作機械部門講演会講演論文集, No.C20, 276, Oct. 2019.
25.	Akira Mizobuchi, Tohru Ishida and Taichi Takata : 切りくず付着低減研磨バーの試作, 日本設計工学会四国支部平成30年度四国支部研究発表講演会特別講演会・研究発表講演会概要集, 3-4, Mar. 2019.
26.	Tohru Ishida, Shikitaro Ogawa, Akira Mizobuchi and 竹内芳美 : 穴内面穴放電加工法の開発 -ツイン板ばね方式による穴内面穴の真直化-, 電気加工学会全国大会(2018)講演論文集, 53-54, Nov. 2018.
27.	Tohru Ishida, Yuhei Tsunekuni, Shikitaro Ogawa, Akira Mizobuchi and 竹内芳美 : 放電加工による穴内面への穴創成およびその大径化と真直化, 第18回国際工作機械技術者会議論文集(ポスターセッション論文抜粋版),日本工作機械工業会&東京ビックサイト, 66-67, Nov. 2018.
28.	Ryuta Kubota, Tohru Ishida, Akira Mizobuchi and 竹内芳美 : 穴内面穴放電加工法の開発 -加工穴の小径化の試み-, 日本機械学会第12回生産加工・工作機械部門講演会講演論文集, No.B08, 1-2, Oct. 2018.
29.	Yuhei Tsunekuni, Tohru Ishida, Shikitaro Ogawa, Akira Mizobuchi and 竹内芳美 : 穴内面穴放電加工法の開発(板ばねの薄片化による穴内面穴の真直化), 日本機械学会2018年度年次大会講演論文集, No.S1330001, 1-3, Sep. 2018.
30.	Ryuji Inasaka, Akira Mizobuchi and Tohru Ishida : 電気泳動現象を用いた補綴歯科用研磨バーの開発, 日本機械学会中国四国支部第56期講演会講演論文集, No.1410, 1-2, Mar. 2018.
31.	Kota Honda, Akira Mizobuchi and Tohru Ishida : 酸化チタン水溶液の光励起親水化作用を利用した電着工具への切りくず付着抑制, 日本機械学会中国四国支部第56期講演会講演論文集, No.1409, 1-2, Mar. 2018.
32.	Ryotaroh Tanimoto, Akira Mizobuchi, Tohru Ishida and 今村雅紀 : 極厚鋼板のガス切断時のノロの抑制, 2017年度精密工学会中国四国支部鳥取地方学術講演会講演論文集, 25-26, Nov. 2017.
33.	Tohru Ishida, Yusuke Kaide, Akira Mizobuchi and 竹内芳美 : 教示再生法を適用した曲がり穴放電加工における教示作業の自動化(電極運動軌跡の3次元化), 日本設計工学会2017年度秋季大会研究発表講演会講演論文集, 129-130, Oct. 2017.
34.	Tohru Ishida, Shohei Tahara, Shikitaro Ogawa, Akira Mizobuchi and 竹内芳美 : 穴内面穴放電加工法の開発(加工穴内径の拡大), 日本機械学会2017年度年次大会講演論文集, No.S1340101, 1-4, Sep. 2017.
35.	Kazuya Yorioka, Tohru Ishida, Tsubasa Okazaki, Akira Mizobuchi, 浅川直紀 and 竹内芳美 : 多軸制御放電加工による断面変化穴の創成を実現するための2+5軸制御荒加工用メインプロセッサの開発, 2017年度精密工学会春季大会学術講演会講演論文集, 401-402, Mar. 2017.
36.	Hironori Hata, Tohru Ishida, Kento Kawasaki, Yuya Sato, 北正彦, Akira Mizobuchi and 竹内芳美 : 昆虫型マイクロロボットによる曲がり穴放電加工システムの開発 -放電加工機能を有したマイクロロボットによる穴創成の実現-, 日本機械学会中国四国支部第55期総会・講演会講演論文集, No.909, 1-2, Mar. 2017.
37.	Akira Mizobuchi, Kazuki Ueda, Kohta Watanabe, Kota Honda and Tohru Ishida : キャビテーション援用によるストレート面付き電着工具の貫通穴加工, 第17回国際工作機械技術者会議論文集(ポスターセッション論文抜粋版), 86-87, Nov. 2016.
38.	Tsubasa Okazaki, Kazuya Yorioka, Tohru Ishida, Akira Mizobuchi, 浅川直紀 and 竹内芳美 : 多軸制御放電加工による断面変化穴の創成を実現するための2重C-Spaceを用いた干渉回避法の開発, 2016年度精密工学会秋季大会学術講演会講演論文集, 461-462, Sep. 2016.
39.	Tsubasa Okazaki, Kazuya Yorioka, Tohru Ishida, Akira Mizobuchi, 浅川直紀 and 竹内芳美 : 多軸制御放電加工による断面変化穴の創成を実現するための2重C-Spaceを用いた干渉回避法の提案, 日本設計工学会四国支部平成27年度研究発表講演会講演論文集, 37-38, Mar. 2016.
40.	Yusuke Kaide, Chiyongan Kimu, Tohru Ishida, Akira Mizobuchi and 竹内芳美 : 教示再生法を適用した曲がり穴放電加工における教示作業の自動化, 日本設計工学会四国支部平成27年度研究発表講演会講演論文集, 35-36, Mar. 2016.
41.	Yuki Kagawa, Akira Mizobuchi and Tohru Ishida : 化学強化ガラスへの高品位穴加工技術に関する研究, 日本設計工学会四国支部平成27年度研究発表講演会講演論文集, 21-22, Mar. 2016.
42.	Kazuki Ueda, Akira Mizobuchi and Tohru Ishida : 石英ガラス板への高アスペクト比穴加工を目的とした電着工具の開発, 日本設計工学会四国支部平成27年度研究発表講演会講演論文集, 19-20, Mar. 2016.
43.	Tohru Ishida, Johtaroh Etoh, Akira Mizobuchi and 竹内芳美 : 穴内面穴放電加工法の開発 -加工可能な穴長さの限界-, 電気加工学会全国大会(2015)講演論文集, 85-86, Dec. 2015.
44.	Tohru Ishida, Takahiko Yamagawa, Akira Mizobuchi and 竹内芳美 : 穴内面穴放電加工法の開発 -保持器による加工穴長さの延長-, 日本機械学会第10回生産加工・工作機械部門講演会講演論文集, 235-236, Nov. 2014.
45.	Akira Mizobuchi, Kensuke Uemoto and Tohru Ishida : 小径ダイヤモンド電着工具によるガラス板への小径貫通穴加工の高品位化, 日本機械学会第10回生産加工・工作機械部門講演会講演論文集, 153-154, Nov. 2014.
46.	Tohru Ishida, Takahiko Yamagawa, Atsuya Yamada, Akira Mizobuchi and 竹内芳美 : 放電加工による穴内面への穴創成, 第16回国際工作機械技術者会議論文集(ポスターセッション論文抜粋版),日本工作機械工業会&東京ビックサイト, 62-63, Nov. 2014.
47.	Tohru Ishida, Atsuya Yamada, Akira Mizobuchi and 竹内芳美 : 穴内面穴放電加工法の開発 -装置の基本構成と適用結果-, 2014年度精密工学会秋季大会学術講演会講演論文集, 259-260, Sep. 2014.
48.	Akira Mizobuchi, Yasuhiro Iwamoto and Tohru Ishida : 小径ダイヤモンド電着工具によるガラス板への高品位斜め穴加工, 2014年度砥粒加工学会学術講演会講演論文集, 92-93, Sep. 2014.
49.	Tohru Ishida, 岡原裕一, 北正彦, 中本圭一 and 竹内芳美 : 穴内面穴放電加工に関する基礎研究, 日本機械学会 2013年度年次大会講演論文集, No.S134011, 1-4, Sep. 2013.
50.	Akira Mizobuchi, Yuki Takahashi, Kensuke Uemoto and Tohru Ishida : ガラスへの小径貫通穴あけ加工用ダイヤモンド電着工具の開発, 2013年度砥粒加工学会学術講演会講演論文集, 217-218, Aug. 2013.
51.	Tohru Ishida and 竹内芳美 : 穴内面形状放電加工に関する研究 -3次元形状の創成-, 型技術, Vol.27, No.12, 22-23, Dec. 2012.
52.	Tohru Ishida and 竹内芳美 : 穴内面形状放電加工に関する研究 -3次元形状の創成-, 型技術ワークショップ2012inKOBE講演論文集, 36-37, Nov. 2012.
53.	Akira Mizobuchi, Kensuke Uemoto, Izumi Tada and Tohru Ishida : ガラス板へのクラックフリー小径貫通穴加工, 第15回国際工作機械技術者会議論文集(ポスターセッション論文抜粋版),日本工作機械工業会&東京ビックサイト, 58-59, Nov. 2012.
54.	谷佑馬, Tohru Ishida, 北正彦, 中本圭一 and 竹内芳美 : 2+1軸制御による3次元断面変化穴放電加工に関する研究, 2011年度精密工学会秋季大会学術講演会講演論文集, 727-728, Sep. 2011.
55.	唐辛鋭, 中本圭一, 小畠一志, Tohru Ishida and 竹内芳美 : 刃先移動加工法を用いた超精密マイクロ溝加工(第4報) -刃先移動加工法のメカニズム-, 2011年度精密工学会秋季大会学術講演会講演論文集, 451-452, Sep. 2011.
56.	西山諒, 中本圭一, Tohru Ishida and 竹内芳美 : ルールドサーフェスをもつ加工物の超精密マイクロ5軸制御加工, 2011年度精密工学会秋季大会学術講演会講演論文集, 447-448, Sep. 2011.
57.	Nguyen Tung Nghia, 中本圭一, Tohru Ishida and 竹内芳美 : 複雑形状に対応したミルターン用CAMシステムの開発, 2011年度精密工学会秋季大会学術講演会講演論文集, 323-324, Sep. 2011.
58.	長谷川浩二, 中本圭一, Tohru Ishida and 竹内芳美 : NCデータの座標情報を考慮した高速高精度5軸制御加工, 2011年度精密工学会春季大会学術講演会講演論文集, 391-392, Mar. 2011.
59.	引地達哉, 中本圭一, Tohru Ishida and 竹内芳美 : 工具姿勢と姿勢変化の影響を考慮した5軸制御CAMシステムの開発, 2011年度精密工学会春季大会学術講演会講演論文集, 389-390, Mar. 2011.
60.	唐辛鋭, 小畠一志, 中本圭一, Tohru Ishida and 竹内芳美 : 刃先移動加工法を用いた超精密マイクロ溝加工(第3報) -曲線溝における曲率の影響-, 2011年度精密工学会春季大会学術講演会講演論文集, 261-262, Mar. 2011.
61.	長澤誠治, Tohru Ishida, 北正彦, 中本圭一 and 竹内芳美 : 曲がり穴放電加工のための弾性波測定を用いた電極位置検出に関する研究, 2011年度精密工学会春季大会学術講演会講演論文集, 17-18, Mar. 2011.
62.	北正彦, Tohru Ishida, 中本圭一 and 竹内芳美 : 極間距離自動制御機構の基礎的数理モデルの構築と検証, 電気加工学会全国大会(2010)講演論文集, 73-74, Nov. 2010.
63.	小山泰明, 中本圭一, Tohru Ishida and 竹内芳美 : 超精密マイクロ加工のためのCAPP/CAMシステムの開発 -高アスペクト比形状加工の工程設計-, 日本機械学会第8回生産加工・工作機械部門講演会講演論文集, 151-152, Nov. 2010.
64.	Tohru Ishida, 安澤一樹, 石黒永樹, 北正彦, 中本圭一 and 竹内芳美 : 断面変化穴放電加工用CAD/CAMシステムの開発 -同時3軸制御加工対応ポストプロセッサの構築-, 日本機械学会第8回生産加工・工作機械部門講演会講演論文集, 55-56, Nov. 2010.
65.	濱田大地, 中本圭一, Tohru Ishida and 竹内芳美 : 入れ子を有する特殊形状の巧妙加工, 2010年度精密工学会秋季大会学術講演会講演論文集, 399-400, Sep. 2010.
66.	夏目矩行, 中本圭一, Tohru Ishida and 竹内芳美 : 曲がった円柱から構成される複雑形状の巧妙加工, 2010年度精密工学会秋季大会学術講演会講演論文集, 397-398, Sep. 2010.
67.	長谷川裕高, 中本圭一, Tohru Ishida and 竹内芳美 : ダイヤモンド回転工具による低摩耗超硬合金加工, 2010年度精密工学会秋季大会学術講演会講演論文集, 797-798, Sep. 2010.
68.	三澤悠人, 中本圭一, Tohru Ishida and 竹内芳美 : 高硬度材料への両端マイクロ止り溝創成, 2010年度精密工学会秋季大会学術講演会講演論文集, 791-792, Sep. 2010.
69.	引地達哉, 中本圭一, Tohru Ishida and 竹内芳美 : 工具姿勢および姿勢変化を考慮した5軸制御加工用工具経路の生成, 日本機械学会 2010年度年次大会講演論文集Vol.4, 207-208, Sep. 2010.
70.	Tohru Ishida and 竹内芳美 : 曲がり穴放電加工用管内走行機構の開発, 2010年度砥粒加工学会学術講演会講演論文集(ABTEC2010), 411-412, Aug. 2010.
71.	兪張勇, 中本圭一, Tohru Ishida and 竹内芳美 : 工作機械構造設計用対話型システムの開発, 2010年度精密工学会春季大会学術講演会講演論文集, 1097-1098, Mar. 2010.
72.	河口泰大, 中本圭一, Tohru Ishida and 竹内芳美 : 2主軸を用いた技巧的加工の研究, 2010年度精密工学会春季大会学術講演会講演論文集, 1031-1032, Mar. 2010.
73.	石黒永樹, Tohru Ishida, 北正彦, 中本圭一 and 竹内芳美 : 断面変化穴放電加工用CAD/CAMシステムの開発 -2次元形状用メインプロセッサの構築-, 2010年度精密工学会春季大会学術講演会講演論文集, 579-580, Mar. 2010.
74.	小泉武久, 中本圭一, Tohru Ishida and 竹内芳美 : 領域分割に基づく工具経路生成法に関する研究, 2010年度精密工学会春季大会学術講演会講演論文集, 131-132, Mar. 2010.
75.	窪田耕児, 中本圭一, Tohru Ishida and 竹内芳美 : 5軸加工を考慮した複合加工機用CAMシステムの開発, 2010年度精密工学会春季大会学術講演会講演論文集, 129-130, Mar. 2010.
76.	唐辛鋭, 吉永実樹, 中本圭一, Tohru Ishida and 竹内芳美 : 刃先移動加工法を用いた超精密マイクロ溝加工, 2010年度精密工学会春季大会学術講演会講演論文集, 3-4, Mar. 2010.
77.	北正彦, Tohru Ishida, 中本圭一 and 竹内芳美 : 極間距離自動制御機構を用いた放電加工における電極運動と放電電流の測定, 電気加工学会全国大会(2009)講演論文集, 1-2, Nov. 2009.
78.	唐辛鋭, 吉永実樹, 中本圭一, Tohru Ishida and 竹内芳美 : 刃先移動加工法を用いた超精密マイクロ溝加工(第2報) -曲線溝加工への適用-, 2010年度精密工学会秋季大会学術講演会講演論文集, 789-790, Sep. 2009.
79.	Tohru Ishida, 長澤誠治, 北正彦, 中本圭一 and 竹内芳美 : 断面変化穴を適用した金型冷却管の有する奪熱性能の定量的解析と従来冷却管との比較, 日本機械学会 2009年度年次大会講演論文集Vol.4, 241-242, Sep. 2009.
80.	長澤誠治, Tohru Ishida, 北正彦, 中本圭一 and 竹内芳美 : 断面変化穴の金型冷却管としての基本性能解析, 2009年度精密工学会秋季大会学術講演会講演論文集, 291-292, Sep. 2009.
81.	唐辛鋭, 吉永実樹, 中本圭一, Tohru Ishida and 竹内芳美 : チャンファー付きダイヤモンド製工具による高硬度材料の高効率加工, 2009年度精密工学会秋季大会学術講演会講演論文集, 45-46, Sep. 2009.
82.	三澤悠人, 中本圭一, Tohru Ishida and 竹内芳美 : 高硬度材料へのマイクロ止り溝創成, 2009年度精密工学会秋季大会学術講演会講演論文集, 43-44, Sep. 2009.
83.	河口泰大, 竹内芳美, Tohru Ishida and 中本圭一 : 複合加工機によるアーティスティックマシニング, 2009年度精密工学会秋季大会学術講演会講演論文集, 839-840, Sep. 2009.
84.	長谷川浩二, 中本圭一, Tohru Ishida and 竹内芳美 : 5軸制御多数穴あけ加工の効率化, 2009年度精密工学会秋季大会学術講演会講演論文集, 833-834, Sep. 2009.
85.	引地達哉, 中本圭一, Tohru Ishida and 竹内芳美 : 加工面を考慮した5軸制御加工用工具経路の生成, 2009年度精密工学会秋季大会学術講演会講演論文集, 827-828, Sep. 2009.
86.	小泉武久, 中本圭一, Tohru Ishida and 竹内芳美 : 領域分割に基づく工具経路生成法に関する研究, 2009年度精密工学会秋季大会学術講演会講演論文集, 825-826, Sep. 2009.
87.	竹村文平, 中本圭一, Tohru Ishida and 竹内芳美 : 超精密6軸制御加工機におけるセッティング誤差の補正, 2009年度精密工学会関西地方定期学術講演会講演論文集, 37-38, May 2009.
88.	小谷昂, 中本圭一, Tohru Ishida and 竹内芳美 : 複合加工機用CAMシステムの研究, 2009年度精密工学会春季大会学術講演会講演論文集, 357-358, Mar. 2009.
89.	井上武浩, 中本圭一, Tohru Ishida and 竹内芳美 : 5軸制御加工を用いた効率的荒加工法の開発, 2009年度精密工学会春季大会学術講演会講演論文集, 1059-1060, Mar. 2009.
90.	山本真語, 平野稔, 中本圭一, Tohru Ishida and 竹内芳美 : マイクロ溝を有する非軸対称非球面金型の超精密加工, 2009年度精密工学会春季大会学術講演会講演論文集, 413-414, Mar. 2009.
91.	大場貴信, 中本圭一, Tohru Ishida and 竹内芳美 : 多軸制御マイクロ加工のためのCAPP/CAMシステムに関する研究, 2009年度精密工学会春季大会学術講演会講演論文集, 411-412, Mar. 2009.
92.	北正彦, Tohru Ishida, 寺本孝司 and 竹内芳美 : 曲がり穴放電加工用マイクロロボットの開発 -極間距離自動制御機構の改良による小型化と性能向上-, 2009年度精密工学会春季大会学術講演会講演論文集, 201-202, Mar. 2009.
93.	北正彦, Tohru Ishida, 寺本孝司 and 竹内芳美 : 極間距離自動制御機構の改良による小型化と性能向上, 電気加工学会全国大会(2008)講演論文集, 21-22, Nov. 2008.
94.	小泉武久, 中本圭一, Tohru Ishida and 竹内芳美 : 5軸加工機における複合曲面の工具経路生成法に関する研究, 日本機械学会第7回生産加工・工作機械部門講演会講演論文集, 189-190, Nov. 2008.
95.	石黒永樹, Tohru Ishida, 北正彦 and 竹内芳美 : 断面変化穴放電加工用CAD/CAMシステムの開発 -2次元形状用ポストプロセッサの構築-, 日本機械学会第7回生産加工・工作機械部門講演会講演論文集, 157-158, Nov. 2008.
96.	小谷昴, Tohru Ishida and 竹内芳美 : 複合加工機用CAMシステムの開発, 第13回国際工作機械技術者会議論文集(ポスターセッション論文抜粋版),(工作機械関連のニューテクノロジーポスター展,第13回国際工作機械技術者会議関連イベント),日本工作機械工業会&東京ビックサイト, 84-85, Nov. 2008.
97.	大場貴信, Tohru Ishida and 竹内芳美 : マイクロ加工のためのCAPP/CAMシステムの開発, 第13回国際工作機械技術者会議論文集(ポスターセッション論文抜粋版),(工作機械関連のニューテクノロジーポスター展,第13回国際工作機械技術者会議関連イベント),日本工作機械工業会&東京ビックサイト, 82-83, Nov. 2008.
98.	河口泰大, 竹内芳美 and Tohru Ishida : 複合加工機による鎖状2物体加工の研究, 2008年度精密工学会関西地方定期学術講演会講演論文集, 85-86, Jul. 2008.
99.	唐辛鋭, Tohru Ishida and 竹内芳美 : エンドミルによる超精密マイクロ凹球面加工とその誤差補正, 2008年度精密工学会関西地方定期学術講演会講演論文集, 71-72, Jul. 2008.
100.	上田康文, Tohru Ishida and 竹内芳美 : 5軸NURBS補間加工に対応した一般化ポストプロセッサの研究, 2008年度精密工学会春季大会学術講演会講演論文集, 755-756, Mar. 2008.
101.	石橋春紀, Tohru Ishida and 竹内芳美 : 開発したシミュレータによる研磨加工の評価, 2008年度精密工学会春季大会学術講演会講演論文集, 287-288, Mar. 2008.
102.	Tohru Ishida and 竹内芳美 : 曲がり穴加工法の開発 -サーボモータの導入と曲がり穴の小径化-, 型技術, Vol.22, No.14, 48-49, Dec. 2007.
103.	Tohru Ishida and 竹内芳美 : 曲がり穴加工法の開発 -サーボモータの導入と曲がり穴の小径化-, 型技術ワークショップ2007in広島講演論文集, 54-55, Nov. 2007.
104.	上田康文, Tohru Ishida and 竹内芳美 : 5軸NURBS補間加工用ポストプロセッサの開発, 2007年度精密工学会秋季大会学術講演会講演論文集, 33-34, Sep. 2007.
105.	藤井太一, Tohru Ishida, 渋川哲郎, 平野稔 and 竹内芳美 : 微細構造を有するガラスレンズ成形型の高精度加工に関する研究, 2007年度精密工学会秋季大会学術講演会講演論文集, 439-440, Sep. 2007.
106.	Tohru Ishida, 長澤宏樹, 北正彦 and 竹内芳美 : 断面変化穴加工法の開発 -回転軸の導入による回転体形状の創成-, 2007年度精密工学会秋季大会学術講演会講演論文集, 79-80, Sep. 2007.
107.	大場貴信, Tohru Ishida, 榎本俊之 and 竹内芳美 : 超精密マイクロ加工用CAPPシステムの研究, 日本機械学会 2007年度年次大会講演論文集Vol.4, 273-274, Sep. 2007.
108.	山本真語, Tohru Ishida, 榎本俊之 and 竹内芳美 : 工具刃先位置を利用した非回転工具用補正NCデータの生成, 日本機械学会 2007年度年次大会講演論文集Vol.4, 271-272, Sep. 2007.
109.	Tohru Ishida, 山下泰弘, 北正彦, 濱田慎一郎, 寺本孝司 and 竹内芳美 : 曲がり穴放電加工のための弾性波測定を用いた電極位置検出に関する基礎研究, 日本機械学会 2007年度年次大会講演論文集Vol.4, 229-230, Sep. 2007.
110.	Tohru Ishida, 中嶋大, 北正彦, 寺本孝司 and 竹内芳美 : 小型化した曲がり穴放電加工用管内走行機構の改良とそれを用いた曲がり穴の延長, 日本機械学会 2007年度年次大会講演論文集Vol.4, 225-226, Sep. 2007.
111.	Tohru Ishida and 竹内芳美 : 放電加工を用いた曲率一定曲がり穴の創成, 2007年度砥粒加工学会学術講演会講演論文集(ABTEC2007), 95-98, Sep. 2007.
112.	井上武浩, Tohru Ishida and 竹内芳美 : 干渉回避空間を用いた5軸制御加工用工具経路生成法, 2007年度精密工学会関西地方定期学術講演会講演論文集, 69-70, Aug. 2007.
113.	小谷昴, Tohru Ishida and 竹内芳美 : 複合加工機用CAMシステムに関する研究, 2007年度精密工学会関西地方定期学術講演会講演論文集, 67-68, Aug. 2007.
114.	西岡卓弥, 北正彦, Tohru Ishida, 寺本孝司 and 竹内芳美 : 曲がり穴加工法の開発(第11報) -教示再生を利用した形状の制御と機構の改良による形状自由度の向上-, 2007年度精密工学会春季大会学術講演会講演論文集, 787-780, Mar. 2007.
115.	園真, Tohru Ishida, 寺本孝司, 榎本俊之 and 竹内芳美 : 超精密5軸制御加工におけるセッティング誤差の一般化補正法, 2007年度精密工学会春季大会学術講演会講演論文集, 689-690, Mar. 2007.
116.	守屋貴雅, Tohru Ishida, 寺本孝司, 榎本俊之 and 竹内芳美 : 刃先位置検出法を用いた6軸制御両端止りマイクロ溝加工, 2007年度精密工学会春季大会学術講演会講演論文集, 683-684, Mar. 2007.
117.	園真, Tohru Ishida, 寺本孝司 and 竹内芳美 : 超精密5軸制御加工用セッティング誤差補正法の開発, 日本機械学会第6回生産加工・工作機械部門講演会講演論文集, 185-186, Nov. 2006.
118.	西岡卓弥, 北正彦, Tohru Ishida, 寺本孝司 and 竹内芳美 : 曲がり穴放電加工法の開発 -教示再生を利用した形状の制御-, 日本機械学会第6回生産加工・工作機械部門講演会講演論文集, 213-214, Nov. 2006.
119.	上田康文, 寺本孝司, Tohru Ishida and 竹内芳美 : NURBS補間に対応した5軸制御加工用ポストプロセッサに関する研究, 日本機械学会第6回生産加工・工作機械部門講演会講演論文集, 15-16, Nov. 2006.
120.	梅原猛, Tohru Ishida, 寺本孝司 and 竹内芳美 : 多軸制御加工のための効率的荒加工用工具経路生成の研究, 日本機械学会第6回生産加工・工作機械部門講演会講演論文集, 5-6, Nov. 2006.
121.	Tohru Ishida, 中嶋大, 北正彦, 寺本孝司 and 竹内芳美 : 曲がり穴放電加工用方向制御機構の小型化による穴径5mmの曲がり穴創成, 電気加工学会全国大会(2006)講演論文集, 35-36, Nov. 2006.
122.	山下泰弘, Tohru Ishida, 北正彦, 寺本孝司 and 竹内芳美 : 長距離曲がり穴放電加工に関する基礎研究, 工作機械関連のニューテクノロジーポスター展 -21世紀の産業競争力を確保するための産学連携の推進- 工作機械関連研究者の研究概要集,第12回国際工作機械技術者会議関連イベント,日本工作機械工業会&東京ビックサイト, 34-35, Nov. 2006.
123.	上田康文, 富永有機, Tohru Ishida, 寺本孝司 and 竹内芳美 : NURBS補間を利用した5軸制御加工用CAMシステムの開発, 工作機械関連のニューテクノロジーポスター展 -21世紀の産業競争力を確保するための産学連携の推進- 工作機械関連研究者の研究概要集,第12回国際工作機械技術者会議関連イベント,日本工作機械工業会&東京ビックサイト, 32-33, Nov. 2006.
124.	守屋貴雅, Tohru Ishida, 榎本俊之 and 竹内芳美 : 6軸制御超精密両端止りマイクロ溝加工, 2006年度精密工学会秋季大会学術講演会講演論文集, 797-798, Sep. 2006.
125.	石橋春紀, 寺本孝司, Tohru Ishida and 竹内芳美 : 小型部品の工作物把持における変形推定に関する研究, 2006年度精密工学会関西地方定期学術講演会講演論文集, 55-56, Aug. 2006.
126.	山下泰弘, Tohru Ishida, 北正彦, 寺本孝司 and 竹内芳美 : 曲がり穴放電加工のための電極位置検出に関する基礎研究, 2006年度精密工学会関西地方定期学術講演会講演論文集, 39-40, Aug. 2006.
127.	山下敦史, Tohru Ishida, 寺本孝司 and 竹内芳美 : 光学素子の研磨加工シミュレータに関する研究, 2006年度精密工学会関西地方定期学術講演会講演論文集, 13-14, Aug. 2006.
128.	中嶋大, Tohru Ishida, 北正彦, 寺本孝司 and 竹内芳美 : 曲がり穴加工法の開発(第10報)-管内走行機構の小型化とその改良-, 2006年度精密工学会春季大会学術講演会講演論文集, 711-712, Mar. 2006.
129.	西岡卓弥, Tohru Ishida, 北正彦, 寺本孝司 and 竹内芳美 : 方向制御機構付き管内走行機構の開発とそれを用いた2連続曲がり穴加工の試み, 電気加工学会全国大会(2005)講演論文集, 133-134, Nov. 2005.
130.	中嶋大, Tohru Ishida, 北正彦 and 竹内芳美 : 曲がり穴放電加工用管内走行機構の小型化, 日本機械学会 2005年度年次大会講演論文集Vol.4, 121-122, Sep. 2005.
131.	西岡卓弥, Tohru Ishida, 寺本孝司, 竹内芳美 and 北正彦 : 曲がり穴加工法の開発(第9報)-方向制御機構付き管内走行機構による曲がり穴加工-, 2005年度精密工学会秋季大会学術講演会講演論文集, 1271-1272, Sep. 2005.
132.	園真, 寺本孝司, Tohru Ishida, 竹内芳美 and 河合知彦 : 超精密5軸制御加工用誤差補正法の開発, 2005年度精密工学会秋季大会学術講演会講演論文集, 77-78, Sep. 2005.
133.	守屋貴雅, Tohru Ishida, 寺本孝司, 竹内芳美 and 河合知彦 : 非回転工具を用いた超精密マイクロ両端止り溝加工, 2005年度精密工学会秋季大会学術講演会講演論文集, 61-62, Sep. 2005.
134.	梅原猛, 寺本孝司, Tohru Ishida and 竹内芳美 : 領域分割に基づく5軸制御加工用工具姿勢決定法, 2005年度精密工学会秋季大会学術講演会講演論文集, 721-722, Sep. 2005.
135.	米田博文, 寺本孝司, Tohru Ishida, 渋川哲郎 and 竹内芳美 : パラレルメカニズム型工作機械用CAMシステムの開発, 2005年度精密工学会春季大会学術講演会講演論文集, 937-938, Mar. 2005.
136.	西浜耕一, 渋川哲郎, Tohru Ishida, 寺本孝司 and 竹内芳美 : 動的特性を考慮した工作機械の概念設計に関する研究, 2005年度精密工学会春季大会学術講演会講演論文集, 703-704, Mar. 2005.
137.	Tohru Ishida and 竹内芳美 : 穴内面形状放電加工に関する研究 -加工形状の高自由度化-, 型技術, Vol.19, No.13, 20-21, Dec. 2004.
138.	Tohru Ishida and 竹内芳美 : 穴内面形状放電加工に関する研究 -加工形状の高自由度化-, 型技術ワークショップ2004inびわこ・くさつ講演論文集, 24-25, Nov. 2004.
139.	Tohru Ishida and 竹内芳美 : 穴内面複雑形状加工法の開発 -ソフトウェアによる加工形状の制御-, 日本機械学会第5回生産加工・工作機械部門講演会講演論文集, 293-294, Nov. 2004.
140.	中嶋大, Tohru Ishida, 北正彦 and 竹内芳美 : 曲がり穴加工法の開発(第8報) -加工穴径の小形化-, 2004年度精密工学会秋季大会学術講演会講演論文集, 209-210, Sep. 2004.
141.	Tohru Ishida and 竹内芳美 : サーボモータを利用した曲がり穴放電加工装置の開発, 2004年度砥粒加工学会学術講演会講演論文集(ABTEC2004), 473-474, Sep. 2004.
142.	Tohru Ishida, 細田寿幸, 福田孝弘 and 竹内芳美 : 極間距離自動制御機構の開発 -電極運動の直接計測-, 2004年度精密工学会春季大会学術講演会講演論文集, 377-378, Mar. 2004.
143.	三宅康仁, Tohru Ishida and 竹内芳美 : 曲がり穴加工法の開発(第7報) -一定曲率を持つ曲がり穴の加工-, 2004年度精密工学会春季大会学術講演会講演論文集, 635-636, Mar. 2004.
144.	永富友基, 小野里雅彦, 竹内芳美, 寺本孝司 and Tohru Ishida : InfoBalloonシステムにおける鳥瞰カメラとGISとの連携手法に関する研究, 第4回計測自動制御学会システムインテグレーション部門学術講演会論文集, 1224-1225, Dec. 2003.
145.	三宅康仁, Tohru Ishida and 竹内芳美 : 曲がり穴加工法の開発(第6報) -サーボモータの導入による電極軌跡の高自由度化-, 2003年度精密工学会秋季大会学術講演会講演論文集, 140, Oct. 2003.
146.	植木祐輔, Tohru Ishida, 森重功一 and 竹内芳美 : 産業用ロボットによる研磨作業の自動化 -複雑形状部品の場合-, 2003年度精密工学会秋季大会学術講演会講演論文集, 47, Oct. 2003.
147.	Tohru Ishida, 増田裕貴 and 竹内芳美 : 穴内面複雑形状加工法の開発(第2報) -サーボモータの導入による加工形状の高自由度化-, 2003年度精密工学会秋季大会学術講演会講演論文集, 596, Oct. 2003.
148.	植木祐輔, Tohru Ishida, 森重功一 and 竹内芳美 : 産業用ロボットによる研磨作業の自動化 -複雑形状部品の場合-, 日本機械学会生産システム部門講演会2003 講演論文集, 43-44, Mar. 2003.
149.	小暮成一, Tohru Ishida and 竹内芳美 : 曲がり穴加工法の開発(第5報) -管内走行機構の改良による曲がり穴の延長-, 2003年度精密工学会春季大会学術講演会講演論文集, 301, Mar. 2003.
150.	Tohru Ishida and 竹内芳美 : 放電加工による3次元曲がり穴の創成, 第21回日本工作機械見本市(21st JIMTOF)・第10回工作機械技術者会議(10th IMEC),日本工作機械工業会, 22-23, Nov. 2002.
151.	向山大輔, Tohru Ishida and 竹内芳美 : 配管内面穿孔ロボットの研究 -穴加工モジュールの研究-, 2002年度精密工学会秋季大会学術講演会講演論文集, 228, Oct. 2002.
152.	Tohru Ishida, 望月雄一 and 竹内芳美 : 穴内面複雑形状加工法の開発 -フィン付き半円形状の加工-, 2002年度精密工学会秋季大会学術講演会講演論文集, 190, Oct. 2002.
153.	Tohru Ishida and 竹内芳美 : スライダクランク機構を用いた穴内面形状放電加工, 型技術, Vol.17, No.8, 146-147, Jul. 2002.
154.	Tohru Ishida and 竹内芳美 : スライダクランク機構を用いた穴内面形状放電加工, 型技術者会議2002講演論文集, 226-227, Jun. 2002.
155.	向山大輔, Tohru Ishida and 竹内芳美 : ガス管内面穿孔ロボットの研究 -穴加工モジュールの開発と加熱切削の適用-, 2002年度精密工学会春季大会学術講演会講演論文集, 202, Mar. 2002.
156.	Tohru Ishida and 竹内芳美 : 曲がり穴加工法の開発 -スライダクランク機構を用いた電極送り機構-, 型技術, Vol.16, No.13, 44-45, Dec. 2001.
157.	平沼桃子, 杉田真一, Tohru Ishida, 森重功一 and 竹内芳美 : 産業用ロボットを用いた鋳物製品のバリ取り作業の自動化 -工具使用情報に基づいた経路生成-, 日本機械学会第3回生産加工・工作機械部門講演会講演論文集, 47-48, Nov. 2001.
158.	Tohru Ishida and 竹内芳美 : 曲がり穴加工法の開発 -スライダクランク機構を用いた電極送り機構-, 型技術ワークショップ2001in名古屋講演論文集, 62-63, Nov. 2001.
159.	小暮成一, Tohru Ishida and 竹内芳美 : 曲がり穴加工法の開発(第4報) -加工距離延長機構-, 2001年度精密工学会秋季大会学術講演会講演論文集, 105, Sep. 2001.
160.	Tohru Ishida and 竹内芳美 : 曲がり穴加工法の開発 -3次元曲がり穴加工-, 日本機械学会 2001年度年次大会講演論文集(III), 311-312, Aug. 2001.
161.	Tohru Ishida and 竹内芳美 : 曲がり穴加工法の開発 -圧縮コイルばねを用いた電極送り機構-, 型技術, Vol.16, No.8, 160-161, Jul. 2001.
162.	Tohru Ishida and 竹内芳美 : 曲がり穴加工法の開発 -圧縮コイルばねを用いた電極送り機構-, 型技術者会議2001講演論文集, 228-229, Jun. 2001.
163.	平沼桃子, 杉田真一, Tohru Ishida, 森重功一 and 竹内芳美 : ロボットによるバリ取り作業の自動化 -バリ形態に適合した工具経路生成-, 日本機械学会第1回ファクトリーオートメーション部門講演会講演論文集, 45-46, Mar. 2001.
164.	平沼桃子, 竹内芳美, 森重功一, Tohru Ishida and 杉田真一 : 産業用ロボットを用いた鋳物製品のバリ取り作業の自動化, 2000年度精密工学会秋季大会学術講演会講演論文集, 417, Oct. 2000.
165.	Tohru Ishida and 竹内芳美 : 曲がり穴加工法の開発(第3報) -U字形曲がり穴加工-, 2000年度精密工学会秋季大会学術講演会講演論文集, 328, Oct. 2000.
166.	Tohru Ishida and 竹内芳美 : 金型冷却を目指したL字形曲がり穴加工, 第11回プラスチック成型加工学会年次大会予稿集成形加工'00, 183-184, Jun. 2000.
167.	Tohru Ishida and 竹内芳美 : 曲がり穴加工法の開発(第2報) -電極軌跡の曲率制御-, 2000年度精密工学会春季大会学術講演会講演論文集, 248, Mar. 2000.
168.	Tohru Ishida and 竹内芳美 : 曲がり穴加工法の開発 -放電加工機への付加機構の改良-, 1999年度精密工学会秋季大会学術講演会講演論文集, 416, Sep. 1999.
169.	Tohru Ishida, 竹内芳美, 井上尚人 and 中尾高史 : 軸方向に曲率のある穴加工機の開発(第2報) -圧縮ばねの姿勢制御-, 1998年度精密工学会春季大会学術講演会講演論文集, 335, Mar. 1998.
170.	Tohru Ishida, 竹内芳美, 井上尚人 and 中尾高史 : 軸方向に曲率のある穴加工機の開発 -電極間距離の自動制御機構-, 1997年度精密工学会秋季大会学術講演会講演論文集, 196, Oct. 1997.

Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)

Development of Hole-Inside-Hole Electrical Discharge Machining Method ---Establishment of Technique for Machining a Hole on the Inside Wall of Another Hole--- (Project/Area Number: 16K06012 )
Study on dexterous machining to create high value-added products (Project/Area Number: 23360069 )
Development of Long, Thin, Complex, Curved Hole Electrical Discharge Machining System by Means of an Insect-Like Microrobot (Project/Area Number: 22686018 )
Creation of Cross Section's Changing Holes by means of Electrical Discharge Machining Using a Tool Electrode with Posture and Position Controllable Function (Project/Area Number: 20760085 )
人体血液輸送用軸流マイクロポンプの創成に関する基礎研究 (Project/Area Number: 19656039 )
小径複雑曲がり穴加工を実現する自律型マイクロロポットのユニット開発 (Project/Area Number: 18760099 )
自律型マイクロロボットによる小径複雑曲がり穴加工に関する基礎研究 (Project/Area Number: 17656051 )
穴内面複雑形状加工法の開発 (Project/Area Number: 16760091 )
6-Axis Control Ultraprecision Micromachining of Complex Functional Devices (Project/Area Number: 16360069 )
自律的放電加工機能を有した管内走行機構による3次元曲がり穴加工システムの開発 (Project/Area Number: 14750083 )
STUDY ON MULTI-FUNCTION MACHININIG PROCESSOR CORRESPONDING TO INTELLIGENCE AND INFORMATION (Project/Area Number: 14205023 )
Creation of Ultraprecision Micro Parts with High Aspect Ratio and Complex Shape and its Application (Project/Area Number: 13555033 )
自走式放電加工機構による曲がり穴加工法の開発 (Project/Area Number: 12750094 )
Accurate Machining of Difficult-to-Machine Shapes by Means of 6-Axis Control Vibrfational Cutting (Project/Area Number: 12450057 )
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Professor : Ishida, Tohru

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Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)