| Mar. 1982 | B.Eng. Degree in Computer Science and Communication Engineering from Kyushu University, Japan |
| Mar. 1984 | M.Eng. Degree in Computer Science and Communication Engineering from Kyushu University, Japan |
| Apr. 1984 - Apr. 1991 | Research Associate at the Department of Computer Science and Communication Engineering, Kyushu University, Japan |
| Mar. 1991 | Dr.Eng. Degree in Computer Science and Communication Engineering from Kyushu University, Japan |
| May 1991 - Oct. 1993 | Lecturer at the University Computation Center, Kyushu University, Japan |
| Nov. 1993 - Dec. 1993 | Associate Professor at the Computer Center, Kyushu University, Japan |
| Jan. 1994 - Mar. 1994 | Associate Professor at KITE Network Operation Center, Kyushu University, Japan |
| Apr. 1994 - Mar. 2000 | Associate Professor at the Graduate School of Information Science, Nara Institute of Science and Technology, Japan |
| Apr. 2000 - Mar. 2011 | Professor at the Department of Reliability-based Information Systems Engineering, Faculty of Engineering, Kagawa University, Japan |
| Apr. 2012 - Mar. 2018 | Professor at the Department of Electronics and Informatin Engineering, Faculty of Engineering, Kagawa University, Japan |
| Apr. 2018 - | Professor at the Department of Engineering and Design, Faculty of Engineering and Design, Kagawa University, Japan |