- 2002 - 2006 Soka University Faculty of Education
- 1997 - 2002 Soka University Faculty of Education
- 1997 - 2002 Soka Univ., Prof.
- 2002 - - 青森大学大学院 非常勤講師
- 1981 - 1996 Tokyo Gakugei University
- 1981 - 1996 Tokyo Gakugei Univ., Prof.
- 1972 - 1980 Kyoto University Faculty of Science
- 1972 - 1980 Kyoto Univ. Fac. Science, Dert. Zool., Lecturer
- 1962 - 1971 Tokyo Gakugei University
- 1962 - 1971 Tokyo Gakugei Univ., Research Assistant
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