- 1975 - 1983 Otemon Gakuin University Faculty of Economics
- 1975 - 1983 Otemon Gakuin University, Assistant Professor
- 1983 - - 追手門学院大学経済学部 教授
- 1983 - - Otemon Gakuin University Professor
- 1970 - 1975 Otemon Gakuin University Faculty of Economics
- 1970 - 1975 Otemon Gakuin University, Lecturer
- 1966 - 1970 Kwansei Gakuin University School of Economics
- 1966 - 1970 Kwansei Gakuin University, Research Assistant
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