- 2008/04 - The University of Tokyo Professor
- 2007/04 - 2008/03 The University of Tokyo
- 2005/04 - 2007/03 The University of Tokyo
- 2005/02 - 2006/03 Ministry of Education,Culture,Sports,Science and Technology
- 2004/04 - 2005/03 The University of Tokyo
- 2003/04 - 2005/03 The University of Tokyo Professor, Director of Hight Temperature Plasma Center
- 2003/09 - 2004/03 National Institute for Fusion Science
- 2003/04 - 2004/03 National Institute for Fusion Science
- 2001/01 - 2002/03 Ministry of Education,Culture,Sports,Science and Technology
- 2000/04 - 2002/03 文部省 文部事務官(学術国際局学術調査官)
- 1999/05 - The University of Tokyo
- 1999/04 - The University of Tokyo Professor
- 1996/04 - 1998/03 文部省 文部事務官(学術国際局学術調査官)
- 1995/07 - 1996/03 National Institute for Fusion Science
- 1995/04 - 東京大学 Associate Professor
- 1989/05 - 1991/09 National Institute for Fusion Science Research Associate
- 1991/09 - The University of Tokyo Associate Professor
- 1981/06 - 1989/05 Nagoya University, Institute for Plasma Physics Research Associate
- 1981/05 - 日本学術振興会 日本学術振興会奨励研究員
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日本物理学会
, 低温工学会
, The physical Society of Japan
, Atomic Energy Society of Japan
, 日本原子力学会
, プラズマ・核融合学会
, Cryogenic Association of Japan
, The Japan Society of Plasma Science and Nuclear Fusion Research