- 2004 - - 関東学院大学法科大学院教授
- 2004 - - Professor of Law School
- 1991 - 2003 Professor of Law, Faculty of Law,
- 1967 - 1993 Tokyo International University
- 1967 - 1993 Part-time Lecturer, Tokyo International
- 1978 - 1992 Senshu University
- 1978 - 1992 Part-time Lecturer, Senshuu University
- 1986 - 1991 Meijo University
- 1986 - 1991 Part-time Lecturer, Meijo University,
- 1974 - 1991 Nanzan University
- 1974 - 1991 Professor, Nanzan University
- 1991 - - 関東学院大学法学部教授
- 1984 - 1985 オーストラリア国立モナッシュ大学 客員教授
- 1984 - 1985 Visiting Professor, Australia National Monash
- 1972 - 1977 Shiga University
- 1972 - 1977 Part-time Lecturer, Shiga University
- 1970 - 1974 Nanzan University
- 1970 - 1974 Associate Professor, Nanzan University
- 1968 - 1970 Nanzan University
- 1968 - 1970 Full-time Lecturer, Nanzan University
- 1956 - 1961 名古屋学院名古屋高等学校 教諭
- 1956 - 1961 Teacher of English, Nagoya High School
- 関東学院大学大学院法学研究科教授
- Kanto-Gakuinn University
- Professor of Law,Graduate Course of Law,
- Graduate Course of Law
- Part-time Lecturer, Meijo University,
- Uniseisity
- University