- 2016/04 - Faculty of Law, Fukuoka University Professor
- 2010/04 - 2016/03 Faculty of International Studies, Keiai University Professor
- 2011/04/01 - 2015/03/31 立教大学文学部 非常勤講師
- 2009/04/01 - 2011/03/31 日本女子大学文学部 非常勤講師
- 2001/04/01 - 2009/03/31 放送大学 対面授業講師
- 2007/04 - 2009/03 Faculty of InternationalStudies, Keiai University Associate Professor
- 2002/04 - 2007/03 Faculty of InternationalStudies, Keiai University Associate Professor
- 1999/04 - 2001/03 Faculty of International Studies, Keiai University Lecturer
- 1996/06 - 1998/03 Faculty of Law, Hokkaido University Research Associate
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