- 1971 - 1977 Kwansei Gakuin University
- 1971 - 1977 Kwansei Gakuin University, Assistant Professor
- 1977 - - 関西学院大学 教授
- 1977 - - Kwansei Gakuin University, Professor
- 1969 - 1971 Shizuoka University
- 1969 - 1971 Shizuoka University, Assistant Professor
- 1967 - 1969 Shizuoka University
- 1967 - 1969 Shizuoka University, Assistant Professor
- 1965 - 1967 Meiji University
- 1965 - 1967 Meiji University, Research Assistant
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