- 1994 - 2003 Toyo University
- 1994 - 2003 Toyo University, Professor
- 1991 - 1993 Nihon Fukushi University
- 1991 - 1993 Nihon Fukushi University, Professor
- 1981 - 1990 Nihon Fukushi University
- 1981 - 1990 Nihon Fukushi University, Assistant Professor
- 1976 - 1980 Nihon Fukushi University
- 1976 - 1980 Nihon Fukushi University, Lecturer
- 1974 - 1975 暁学園短期大学 専任講師
- 1974 - 1975 Akatsuki Gakuen junior College, Lecturer
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