- 1992 - 2001 Kosen of Osaka Prefecture University
- 1992 - 2001 Osaka Prefectural College of Technology, Professor
- 1980 - 1992 Kosen of Osaka Prefecture University
- 1980 - 1992 Osaka Prefectural College of Technology, Assistant Professor
- 1979 - 1980 Kosen of Osaka Prefecture University
- 1979 - 1980 Osaka Prefectural College of Technology, Lecturer
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