- 1986 - 1989 Yamanashi Gakuin Junior College
- 1986 - 1989 Yamanashi Gakuin Junior College,
- 1989 - - 山梨学院短期大学 教授
- 1989 - - Yamanashi Gakuin Junior College,
- 1984 - 1986 Yamanashi Gakuin Junior College
- 1984 - 1986 Yamanashi Gakuin Junior College
- 1965 - 1983 Tohoku University
- 1965 - 1983 Tohoku University
- 1983 - Tohoku University
- 1983 - Tohoku University, Research Assistant
- Professor
- Assistant Professor
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