- 2015/04 - 現在 Nagasaki Institute of Applied Science president
- 2013/04 - 2015/03 Nihon University Department of Oceanic Architecture Engineering professor
- 1978 - 1996 The University of Tokyo Institute of Industrial Science
- 1978 - 1996 Associate Professor, Institute of Industrial Science, University of Tokyo
- 1996 - - 東京大学生産技術研究所 教授
- 1996 - - Professor, Institute of Industrial Science, University of Tokyo
- 1976 - 1978 Yokohama National University
- 1976 - 1978 Lecturer, Faculty of Engineering, Yokohama National University
- 1978 - Yokohama National University
- 1978 - Associate Professor, Faculty of Engineering, Yokohama National University
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日本沿岸域学会
, 英国王立造船学会(Royal Institution of Naval Architects)
, 日本流体力学会
, 関西造船協会
, 日本造船学会
, The Royal Institution of Naval Architects
, Japanese Association for Coastal Zone Studies
, Japan Society of Fluid Dynamics
, Kansai Society of Naval Architects
, The Society of Naval Architects of Japan