Japanese / English
| 1983 March | Graduated from Dept. Information Science, Kyoto Univ. |
| 1985 March | Received Master of Engineering from Kyoto Univ. |
| 1988 March | Received Doctor of Engineering from Kyushu Univ. |
| 1988 April | Research Associate of Dept. Computer Science and Communication Engineering, Kyushu Univ. |
| 1989 Feb. | Lecturer of Computer Center, Kyushu Univ. |
| 1990 April | Associate Professor of Computer Center, Kyushu Univ. |
| 1994 April | Associate Professor of Dept. Economic Engineering, Kyushu Univ. |
| 2000 April | Associate Professor of Dept. Economic Engineering, Faculty of Economics, Kyushu Univ. |
| 2004 Nov. | Professor of Dept. Economic Engineering, Facaulty of Economics, Kyushu Univ. |
| 1995 August | Visiting Scholar of Dept. Computer Science, Purdue Univ., USA |