- 1992 - 1996 京セラ株式会社中央研究所
- 1992 - 1996 Kyocera Central Research Laboratory
- 1996 - - 明星大学理工学部電気工学科
- 1996 - -
- 1966 - 1991 通商産業省工業技術院電子技術総合研究所
- 1966 - 1991 Electrotechnical Laboratory, AIST, MITI
- Meisei University School of Science and Engineering, Program in Electrical Engineering, Department of Interdisciplinary Science and Engineering Professor
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