- 1998 - 2001 Yokohama National University
- 1998 - 2001 Professor, Graduate School of Engineering, Yokohama National University
- 2001 - - 横浜国立大学大学院工学研究院教授
- 2001 - - Professor, Faculty of Engineering, Yokohama National University
- 1994 - 1998 The University of Tokyo The Faculty of Engineering
- 1994 - 1998 Associate Professor, Engineering Research Institute, Faculty of Engineering,The University of Tokyo
- 1998 - The University of Tokyo The Graduate School of Engineering, Department of Applied Chemistry
- 1998 - Associate Professor, Department of Applied Chemistry, Graduate School Associate Professor, Department of Applied Chemistry, Graduate School of Engineering, The University of TokyoAssociate Professor,
- 1988 - 1994 The University of Tokyo The Faculty of Engineering
- 1988 - 1994 Associate Professor, Department of Synthetic Chemistry, Faculty of Engineering,The University of Tokyo
- 1977 - 1988 The University of Tokyo The Faculty of Engineering
- 1977 - 1988 Research Associate, Department of Synthetic Chemistry, Faculty of Engineering,The University of Tokyo
- 1974 - 1977 The University of Tokyo The Faculty of Engineering
- 1974 - 1977 Technical Instructor, Engineering Research Institute, Faculty of Engineering,The University of Tokyo
- Tokyo Institute of Technology Chemical Resources Laboratory Professor
