| 1993. | 4. | Research Associate at the Faculty of Food Science and Technology, Fukuyama University |  | 
				
					| 1999. | 4. | Assitant Professor at the Faculty of Applied Biological Science, Fukuyama University |  | 
				
					| 2005. | 4. | Associate Professor at the Faculty of Applied Biological Science, Fukuyama University |  | 
				
					| 2005. | 9. | Post doctoral Fellow at MD Anderson Cancer Center, the University of Texas |  | 
				
					| 2006. | 9. | Associate Professor at the Faculty of Applied Biological Science, Fukuyama University |  | 
				
					| 2008. | 2. | Associate Professor at the Faculty of Pharmacy, the University of Tokushima. |  | 
				
					| 2019. | 4. | Division of Bioscience and Bioindustry, Graduate School of Technology, Industrial and Social Sciences, Professor |  |