- 1998 - 1999 Akita University Faculty of Education and Human Studies
- 1998 - 1999 Akita University, Faculty of Education and Human Studies, Assistant Professor
- 1999 - - 秋田大学教育文化学部教授
- 1999 - - Akita University, Faculty of Education and Human Studies, Professor
- 1993 - 1998 Akita University
- 1993 - 1998 Akita University, Faculty of Education, Assistant Professor
- 1991 - 1993 Akita University
- 1991 - 1993 Akita University, Faculty of Education, Lecturer
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