- 1989 - 2007 1989- 岡山大学 助教授 助教授
- 1989 - 2007 Associate Professor,1989- Okayama University, Associate Professor
- 2007 - - 岡山大学 准教授
- 2007 - - Associate Professor,Okayama University
- 1989 - 2004 Okayama University Faculty of Pharmaceutical Sciences
- 1989 - 2004 Associate Professor,Faculty of Pharmaceutical Sciences,Okayama University
- 2004 - - 岡山大学医歯薬学総合研究科 准教授
- 2004 - - Associate Professor,Graduate School of Medicine, Dentistry and Pharmaceutical Sciences,Okayama University
- 1982 - 1989 1982-1989 熊本大学 助手 助手
- 1982 - 1989 Research Associate,1982-1989 Kumamoto University, Research Associate
- 1981 - 1982 1981-1982 熊本大学 教務員 教務員
- 1979 - 1981 1979-1981 ジョンズ・ホプキンス大学 博士研究員 博士研究員
- 1979 - 1981 Postdoctoral fellow,1979-1981 Jones Hopkins University, Postdoctral Fellow
- Okayama University Graduate School of Medicine ,Dentistry and Pharmaceutical Sciences, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences,Okayama University Associate Professor