- 2016 - 現在 Niigata University
- 2000 - 2016 Niigata University Faculty of Science
- 1998 - 2000 Kagawa University, Fac. Agr., Professor
- 1995 - 2000 香川大教育学部 教授
- 2000 - - Niigata University, Fac. Sci., Professor
- 1995 - 1998 Kagawa University, Fac. Educ. Professor
- 1983 - 1995 香川大教育学部 助教授
- 1983 - 1995 Kagawa University, Assistant Professor
- 1982 - 1983 Kagawa University Faculty of Education
- 1982 - 1983 Kagawa University, lecturer
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