- 2018 - 現在 University of the Sacred Heart, Tokyo Professor emeritus
- 1999 - 2018 University of the Sacred Heart, Tokyo Professor
- 1991 - 1999 University of the Sacred Heart, Tokyo, Associate Professor
- 1991 - 1998 University of the Sacred Heart
- 1984 - 1992 Chuo University
- 1984 - 1992 Chuo University, Part-time Lecturer
- 1988 - 1991 駒沢大学 専任講師
- 1988 - 1991 Komazawa university, Lecturer
- 1982 - 1988 Gakushuin University
- 1982 - 1988 Gakushuin University, Part-time Lecturer
- 1980 - 1984 Saitama University
- 1980 - 1984 Saitama University, Part-time Lecturer
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