- 2000 - - 東京工芸大学工学部建築学科教授
- 2000 - - Professor of Tokyo Institute of Polytechnics
- 1998 - 1999 Tokyo Metropolitan University Graduate School of Engineering
- 1998 - 1999 Professor of graduate school of Tokyo
- 1990 - 1998 Tokyo Metropolitan University Faculty of Engineering, Department of Architecture and Building Science
- 1990 - 1998 Professor of Tokyo Metropolitan University
- 1988 - 1990 大成建設(株)技術研究所材料研究部長
- 1988 - 1990 Taisei Corporation, Director of Material
- 1981 - 1988 大成建設(株)技術研究所材料研究室長
- 1981 - 1988 Taisei Corporation, Manager of Material
- 1969 - 1981 大成建設(株)技術研究所主任研究員
- 1969 - 1981 Taisei Corporation, Chief member of
- 1960 - 1969 大成建設(株)技術研究所研究員
- 1960 - 1969 Taisei corporation, Engineering Research
- Metropolitan University
- section of Engineering Research Department
- section of Engineers research Department
- Engineering research Department
- Department
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