- 1998 - 2000 Hitotsubashi University Faculty of Commerce and Management
- 1998 - 2000 Professor,Faculty of Commerce and Management,Hitotsubashi University
- 2000 - - 一橋大学商学研究科 教授
- 2000 - - Professor,Graduate School of Commerce and Management,Hitotsubashi University
- 1996 - 1998 Senshu University School of Commerce
- 1996 - 1998 Associate Professor
- 1989 - 1996 Tokyo University of Information Sciences
- 1989 - 1996 Lecturer
- 1976 - 1989 東京都商工指導所- -
- Hitotsubashi University Graduate School of Commerce and Management Professor
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