- 2006 - 現在 早稲田大学教育・総合科学学術院理学科 教授
- 2006 - 現在 Department of Biology, Waseda University
- 1994 - 2006 甲南大学理工学部生物学科 助教授・教授
- 1994 - 2006 Department of Biology, Konan University
- 1994 - 1994 スイス連邦工科大学細胞生物学研究所
- 1994 - 1994 Institut fur Zellbiologie, ETH Zurich
- 1990 - 1994 (財)地球環境産業技術研究機構(兼任)
- 1990 - 1994 Research Institute of Innovative Technology for the Earth
- 1987 - 1994 明治乳業ヘルスサイエンス研究所
- 1987 - 1994 Meiji Institute of Health Science
- 1986 - 1987 三菱化成生命科学研究所
- 1986 - 1987 Mitsubishi Kasei Institute of Life Science
- 1979 - 1981 民間企業
- 1979 - 1981 AICA Kogyo Company, Limited
- (2002,2003) Graduate School of Science, Hiroshima University (part-time lecturer)
- (2003,2005) Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University (part-time lecturer)
- (2005) Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University (part-time lecturer)
- (2010)Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University (part-time lecturer)
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