- 2005 - 現在 Musashi University Faculty of Economics
- 2005 - 現在 Professor, Faculty of Economics,
- 1979 - 2005 Musashi University Faculty of Economics
- 1979 - 2005 Associate Professor, Faculty of Economics,
- 1977 - 1979 Musashi University Faculty of Economics
- 1977 - 1979 Instructor, Faculty of Economics, Musashi
- 1975 - 1977 Musashi University Faculty of Economics
- 1975 - 1977 Research Associate, Faculty of Economics,
- University
- Musashi University
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