- 1981 - 1990 Tokyo Denki University
- 1981 - 1990 Tokyo Denki University, Assistant Professor
- 1990 - - 東京電機大学 教授
- 1990 - - Tokyo Denki University, Professor
- 1977 - 1981 Tokyo Denki University
- 1977 - 1981 Tokyo Denki University, Lecturer
- 1968 - 1977 Tokyo Denki University
- 1968 - 1977 Tokyo Denki University, Assistant
- Tokyo Denki University School of Science and Engineering
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