- 1986 - - 大阪経済大学 教授
- 1986 - - Professor, Osaka University of Economics
- 1979 - 1985 Osaka University of Economics
- 1979 - 1985 Associate Professor,
- 1975 - 1978 Osaka University of Economics
- 1975 - 1978 Lecture,Osaka University of Economics
- 1969 - 1975 Nagoya University School of Letters
- 1969 - 1975 Research Associate, Faculty of Literature,
- Osaka University of Economics
- University of Nagoya
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