- 1992 - 1998 Hokkaido University Faculty of Pharmaceutical Sciences
- 1992 - 1998 Faculty of Pharmaceutical Sciences, Hokkaido University, Professor
- 1998 - - 北海道大学大学院薬学研究科・教授
- 1998 - - Graduate School of Pharmaceutical Sciences, Hokkaido University, Professor
- 1987 - 1992 Hokkaido University Faculty of Pharmaceutical Sciences
- 1987 - 1992 Faculty of Pharmaceutical Sciences, Hokkaido University, Assistant Professor
- 1971 - 1987 Hokkaido University Faculty of Pharmaceutical Sciences
- 1971 - 1987 Faculty of Pharmaceutical Sciences, Hokkaido University, Research Assistant
- 1963 - 1965 持田製薬株式会社
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