- 1979 - - 西南学院大学商学部 教授
- 1979 - - Seinan Gakuin University, Professor
- 1973 - 1978 Seinan Gakuin University Department of Commerce
- 1973 - 1978 Seinan Gakuin University, Associate Professor
- 1971 - 1972 Seinan Gakuin University Department of Commerce
- 1971 - 1972 Seinan Gakuin University, Lecturer
- 1968 - 1970 Seinan Gakuin University Department of Commerce
- 1968 - 1970 Seinan Gakuin University, Research Assistant
- Seinan Gakuin University Department of Commerce, Division of Commerce Professor
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