- 2002 - 2003 慶応大学 非常勤講師
- 2002 - 2003 Keio University, Part-time Lecturer
- 1998 - 1999 Nihon University
- 1998 - 1999 Takushoku University
- 1998 - 1999 Nihon University, Part-time Lecturer
- 1998 - 1999 Takushoku University, Part-time Lecturer
- 1997 - 1998 The Ohio State University
- 1997 - 1998 Ohio State University, Visiting Scholar
- 1996 - 1997 Takushoku University
- 1996 - 1997 Takushoku University, Part-time Lecturer
- 1977 - 1997 慶応義塾大学 非常勤講師
- 1977 - 1997 Keio University, Part-time Lecturer
- 1994 - 1996 Seiwa University
- 1994 - 1996 Seiwa University, Part-time Lecturer
- 1988 - 1995 Tokai University
- 1988 - 1995 Tokai University, Associate Professor
- 1991 - 1994 Edogawa University
- 1991 - 1994 Edogawa University, Part-time Lecturer
- 1987 - 1988 帝京技術科学大学 助教授
- 1987 - 1988 Teikyo University of Technology and Science, Associate Professor
- 1977 - 1988 Tokai University
- 1977 - 1988 Tokai University, Part-time Lecturer
- 1983 - 1987 Senzoku Gakuen Junior College
- 1983 - 1987 Senzokugakuen College, Associate Professor
- 1977 - 1983 Senzoku Gakuen Junior College
- 1977 - 1983 Senzokugakuen College, Lecturer