| Mar., 1992 | Bachelor of Science, from Dept. of Information Science, The Univ. of Tokyo | Mar., 1994 | Master of Science, from Dept. of Information Science, The Univ. of Tokyo |
| Mar., 1997 |
Ph.D. in Computer Science, from Dept. of Information Science, Faculty of Science, The Univ. of Tokyo (Thesis title: Critical-Point-Based Modeling for Smooth Surfaces) |
| Apr., 1997 | Research Associate, at Dept. of Computer Science, Gunma Univ. |
| Jul., 1999 | Associate Professor, at Computer Center, Gunma Univ. |
| Apr., 2001 | Associate Professor, at Dept. of Graphics and Computer Science, Graduate School of Arts and Sciences, The Univ. of Tokyo |
| Oct., 2002 | Visiting Associate Professor, at Dept. of Computer Science and Engineering, Arizona State University (until Sep., 2003) |
| Apr., 2005 | Associate Professor, at Dept. of Complexity Science and Engineering, Graduate School of Frontier Sciences, The Univ. of Tokyo (until now) |