- 1997 - 1999 Suntory Ltd.
- 1997 - 1999 Patento Director, Suntory co.
- 1999 - - 東海大学 教授
- 1999 - - Tokai University, Professor
- 1994 - 1997 Suntory Ltd.
- 1994 - 1997 Director, Research Planning Div., Suntory co.
- 1969 - 1994 Suntory Ltd.
- 1969 - 1994 Central Research Institute, Suntory,
- Research Associate
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