- 1982 - 2003 尚絅短期大学 教授
- 1982 - 2003 Shokei Junior College, Professor
- 1995 - 1996 ロンドン大学高等法学研究所 客員研究員
- 1995 - 1996 Institute of Advanced Legal Studies,
- 1980 - 1982 Fukuoka Institute of Technology
- 1980 - 1982 Fukuoka Institute of Technology, Lecturer a
- 1979 - 1982 Fukuoka University
- 1979 - 1982 Fukuoka University, Researcher
- University of London, Visiting Scholar
- part-time
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