- 1997 - 1999 北海道文教短期大学 教授
- 1997 - 1999 Hokkaido Bunkyo Junior College, Professor
- 1999 - - 北海道文教大学 教授
- 1999 - - Hokkaido Bunkyo University Professor
- 1979 - 1997 Otaru University of Commerce
- 1979 - 1997 Otaru University of Commerce, Professor
- 1963 - 1979 Otaru University of Commerce
- 1963 - 1979 Otaru University of Commerce, Assistant
- 1965 - 1967 Tezukayama University
- 1965 - 1967 Tezukayama University, Lecturer
- Otaru University of Commerce
- Professor
- Otaru University of Commerce, Lecturer
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