- 2002 - 2004 University of Tsukuba Institute of Basic Medical Sciences
- 2002 - 2004 Institute of Basic Medical Science, University of Tsukuba,
- 2004 - - 筑波大学大学院人間総合科学研究科・教授
- 2004 - - Graduate School of Comrehensive Human Sciences, University of Tsukuba, Professor
- 1997 - 2002 College of Medical Technology & Nnursing, University of Tsukuba
- 1997 - 2002 College of Medical Technology, University of Tsukuba, Proffessor
- 1995 - 1997 University of Tsukuba Institute of Basic Medical Sciences
- 1995 - 1997 Institute of Basic medical Sciences, University of Tsukuba, Assistant Professor
- 1991 - 1995 University of Tsukuba Institute of Basic Medical Sciences
- 1991 - 1995 Institute of Basic medical Sciences, University of Tsukuba
- 1980 - 1991 Jichi Medical University
- 1980 - 1991 Jichi Medical School, a engineer
- 1975 - 1976 栃木県立今市高等学校・講師
- 1975 - 1976 prefactural high school, teacher
- 1967 - 1972 国立予防衛生研究所・厚生技官
- 1967 - 1972 National Institute of health in Japan, the staff
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