- 2020/04 - 現在 Nagasaki University Professor Emeritus
- 2011/04 - 2020/03 Nagasaki University Graduate school of Engineering
- 2017/10 - 2019/09 Nagasaki University
- 2015/04 - 2017/09 Nagasaki University Graduate school of Engineering
- 1997/04 - 2011/03 Nagasaki University Faculty of Engineering, Department of Structual Engineering
- 1991/04 - 1997/03 Nagasaki University Faculty of Engineering, Department of Structual Engineering
- 1991 - 1997 Associate Professor,Structural Engineering,Faculty of Engineering,Nagasaki University
- 1997 - Professor,Structural Engineering,Faculty of Engineering,Nagasaki University
- 1987 - 1991 Nagasaki University Faculty of Engineering, Department of Structual Engineering
- 1987 - 1991 Lecturer,Structural Engineering,Faculty of Engineering,Nagasaki University
- 1980 - 1987 Nagasaki University Faculty of Engineering, Department of Structual Engineering
- 1980 - 1987 Research Associate,Structural Engineering,Faculty of Engineering,Nagasaki University