- 2020/04 - 現在 National Museum of Nature and Science, Tokyo Department of Zoology
- 2017/04 - 現在 Niigata College of Nursing
- 2002/04 - 2017/03 Niigata College of Nursing
- 1997/04 - 2002/03 Niigata College of Nursing
- 1997 - 2002 Niigata College of Nursing, Professor
- 2002 - - Niigata College of Nursing, Professor
- 1994/04 - 1997/03 Niigata College of Nursing
- 1994 - 1997 Niigata College of Nursing, Assistant Professor
- 1991/04 - 1994/03 Iwate Medical University
- 1991 - 1994 Iwate Medical University, Instructor
- 1990/04 - 1991/03 Iwate Medical University
- 1990 - 1991 Iwate Medical University, Research Assistant
- 1978/04 - 1990/03 国立犀潟リハビリテーション学院 教官
- 1978 - 1990 National Saigata Rehabilitation School, Teacher
- 1976/04 - 1978/03 Niigata University
- 1976 - 1978 Niigata University, Research Assistant
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The Cetology Study Group of Japan
, 日本霊長類学会
, 日本解剖学会
, Japanese Association of Anatomists