- 1986 - 1995 University of Toyama
- 1986 - 1995 Toyama University, Professor
- 1981 - 1986 Gifu University
- 1981 - 1986 Gifu University, Professor
- 1972 - 1981 Gifu University
- 1972 - 1981 Gifu University, Assistant Professor
- 1970 - 1972 Gifu University
- 1970 - 1972 Gifu University, Lecturer
- 1969 - 1970 Gifu University
- 1969 - 1970 Gifu University, Research Assistant
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