- 2015/10 - 現在 Hokkaido University Institute for Catalysis Professor
- 2014/04 - 現在 Hokkaido University Advisor to the President
- 2007/04 - 2015/09 Hokkaido University Catalysis Research Center Professor
- 2010/04 - 2014/03 Hokkaido University Catalysis Research Center Director
- 1997/04 - 2007/03 Hokkaido University Catalysis Research Center Associate Professor
- 1997 - 2007 Associate Professor,Catalysis Research Center, Hokkaido University
- 2007 - Professor, Catalysis Research Center, Hokkaido University
- 1995/08 - 1997/03 Tokyo University of Agriculture and Technology Faculty of Technology Associate Professor
- 1995 - 1997 Associate Professor,Faculty of Technology, Tokyo University of Agriculture and Technology
- 1991/04 - 1995/07 Tokyo University of Agriculture and Technology Faculty of Technology Lecturer
- 1991 - 1995 Lecturer,Faculty of Technology, Tokyo University of Agriculture and Technology
- 1989/05 - 1991/03 Hokkaido University Catalysis Research Center Assistant Professor
- 1989 - 1991 Research Associate,Catalysis Research Center, Hokkaido University
- 1986/01 - 1989/04 Hokkaido University Research Institute for Catalysis Assistant Professor
- 1986 - 1989 Research Associate,Research Institute for Catalysis, Hokkaido University