- 1970 - 2002 Kindai University
- 1970 - 2002 Kinki University, Professor
- 1965 - 1970 Kindai University
- 1965 - 1970 Kinki University, Assistant Professor
- 1960 - 1965 Kindai University
- 1960 - 1965 Kinki University, Associate Professor
- 1959 - 1960 Kindai University
- 1959 - 1960 Kinki University, Research Assistant
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