| 1988. | 
					  6. | 
					Research Associate, Faculty of Pharmaceutical Sciences, Tokushima University | 
					 | 
				
				
					| 1991. | 
					  4. | 
					Lecuturer, School of Medical Sciences, Tokushima University | 
					 | 
				
				
					| 1992. | 
					11. | 
					Associate Professor, Faculty of Pharmaceutical Sciences, Tokushima University | 
					 | 
				
				
					| 1995. | 
					  4. | 
					Lecturer, Faculty of Engineering, Tokushima University | 
					 | 
				
				
					| 1999. | 
					  6. | 
					Visiting Research Scientist, Texas Tech University | 
					 | 
				
				
					| 2001. | 
					  4. | 
					Lecturer, Naruto Educational University | 
					 | 
				
				
					| 2003. | 
					  4. | 
					Lecuturer, School of Medicine, Tokushima University | 
					 | 
				
				
					| 2004. | 
					  4. | 
					Associate Professor, Graduate School of Pharmaceutical Sciences, Tokushima University | 
					 | 
				
				
					| 2006. | 
					  4. | 
					Professor at the Institute of Health Biosciences, The Univeristy of Tokushima | 
					 | 
				
				
					| 2015. | 
					  4. | 
					徳島大学大学院医歯薬学研究部 教授(所属名称変更) | 
					 |