- 2017/04 - 現在 Faculty of Veterinary Medicine, Hokkaido University Laboratory of Laboratory Animal Science and Medicine, Department of Applied Veterinary Sciences Professor
- 2002 - 2017/03 - 北海道大学大学院獣医学研究科動物疾病制御学講座実験動物学教室 教授
- 1997 - 2002 名古屋市立大学医学部実験動物研究教育センター 助教授
- 1997 - 2002 Associate Professor,Center for Laboratory Animal Science, Nagoya City University
- 2002 - - Professor
- 1992 - 1997 名古屋市立大学医学部動物実験施設 助教授
- 1992 - 1997 Associate Professor,Institute for Animal Experimentation, Nagoya City University
- 1989 - 1992 徳島大学医学部附属動物実験施設 助手
- 1989 - 1992 Research Associate,Institute for Animal Experimentation, University of Tokushima School of Medicine
- 1988 - 1989 National Institute of Allergy and Infectious Diseases, National Institutes of Health, U.S.A Visiting Associate
- 1988 - 1989 Visiting Associate,National Institute of Allergy and Infectious Diseases, National Institutes of Health, U.S.A
- 1987 - 1988 National Institute of Neurological and Communicative Disorders, National Institutes of Health, U.S.A Visiting Associate
- 1987 - 1988 Visiting Associate,National Institute of Neurological and Communicative Disorders, National Institutes of Health, U.S.A
- 1984 - 1987 National Institute of Neurological and Communicative Disorders, National Institutes of Health, U.S.A Visiting Fellow
- 1984 - 1987 Visiting Fellow,National Institute of Neurological and Communicative Disorders, National Institutes of Health, U.S.A
- 1984 - 日本学術振興会 奨励研究員
- 1984 - Post-Doctoral Fellow,Apr. 1984 - Sep. 1984 Postdoctoral Fellow, Japan Society for the Promotion of Science, Department of Biochemistry, Faculty of Veterinary Medicine, Hokkaido University