- 2021/04 - 現在 Iwate Prefectural University Faculty of Software and Information Science Graduate School of Software and Information Science Studies Professor
- 2007/04 - 2014/03 Iwate Prefectural University Faculty of Software and Information Science Associate Professor
- 2002/04 - 2007/03 Iwate Prefectural University Faculty of Software and Information Science Associate Professor (as old post name)
- 1998/04 - 2002/03 Iwate Prefectural University Faculty of Software and Information Science Lecturer
- 1995/10 - 1998/03 Shinshu University Information Engineering, Faculty of Engineering
- 1994/04/01 - 1995/09/30 日本学術振興会 特別研究員
- 1994/04 - 1995/09 日本学術振興会 特別研究員
- 1991/04 - 1994/03 中国・華南理工大学工学部 講師
- 1990/08 - 1991/03 中国・西安交通大学情報工学科 講師
- 1987/04 - 1990/07 中国・西安交通大学情報工学科 助手
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