- 2003 - - 大阪学院大学大学院商学研究科長
- 2003 - - Osaka Gakuin University, Dean, Graduate School of Commerce
- 1978 - 1999 Kwansei Gakuin University
- 1978 - 1999 Kwansei Gakuin University, Professor
- 1999 - - 大阪学院大学経営科学部 教授
- 1999 - - 関西学院大学 名誉教授
- 1999 - - Osaka Gakuin University, Professor
- 1999 - - Kwansei Gakuin University, Professor Emeritus
- 1972 - 1978 Kwansei Gakuin University
- 1972 - 1978 Kwansei Gakuin University, Assistant Professor
- 1968 - 1972 Kwansei Gakuin University
- 1968 - 1972 Kwansei Gakuin University, full-time Lecturer
- 1965 - 1968 Kwansei Gakuin University
- 1965 - 1968 Kwansei Gakuin University, Research Assistant
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