- 2013 - 現在 Kogakuin University Faculty of Global Engineering
- 2013 - 現在 Professor, Faculgy of Engineering, Department of Innovative Mechanical Engineering, Kogakuin University
- 2012 - 2013 慶應義塾大学大学院理工学研究科 特任教授
- 2012 - 2013 Project Professor, Graduate School of Science and Technology, Keio University
- 1979 - 2013 Hitachi, Ltd.,
- 1979 - 2013 Hitachi, LTD.
- 2010 - 2012 Hitachi, Ltd.,
- 2010 - 2012 Director, Hitachi Institute of Technology, Hitachi Research Laboratory, Hitachi, LTD.
- 2009 - 2012 Tokyo Institute of Technology Interdisciplinary Graduate School of Science and Engineering
- 2009 - 2012 Visiting Professor, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
- 2008 - 2009 Hitachi, Ltd., Hitachi Research Laboratory
- 2008 - 2009 Senior Chief Researcher, Hitachi Research Laboratory, Hitachi, LTD.
- 2005 - 2008 日立ヨーロッパ(株) コーポレートテクノロジーグループ ジェネラルマネージャー
- 2005 - 2008 General Manager, Corporate Technology Group, Hitachi Europe LTD.
- 2004 - 2005 Hitachi, Ltd., Hitachi Research Laboratory
- 2004 - 2005 Director, Information and Control Systems Research Laboratory, Hitachi Research Laboratory, Hitachi, LTD.
- 2003 - 2004 Hitachi, Ltd., Hitachi Research Laboratory
- 2003 - 2004 Director, Information Technology Systems Research Laboratory, Hitachi Research Laboratory, Hitachi, LTD.
- 2001 - 2003 東京農工大学共同研究開発センター 客員教授
- 2001 - 2003 Visiting Professor, Joint Research and Development Center, Tokyo University of Agriculture and Technology
- 1994 - 1994 茨城大学工学部電気電子工学科 非常勤講師
- 1994 - 1994 Part-time Lecturer, Department of Electrical and Electronic Engineering, Ibaraki University
- 1992 - 1993 茨城大学工学部電気電子工学科 非常勤講師
- 1992 - 1993 Part-time Lecturer, Department of Electrical and Electronic Engineering, Ibaraki University
- 1991 - 1992 茨城大学工学部電気電子工学科 非常勤講師
- 1991 - 1992 Part-time Lecturer, Department of Electrical and Electronic Engineering, Ibaraki University