4/1/1978 - 3/31/1981 Research Associate, School of Science and Engineering, Waseda University
4/1/1981 - 3/31/1983 Part-time Lecturer, Sagami Institute of
Technology ( Now, Syonan Institute of Technology )
4/1/1983 - 3/31/1987 Lecturer, Sagami Institute of Technology (
Now, Syonan Institute of Technology )
4/1/1987 - 3/31/1991 Associate Professor, Department of Elecrical
Engineering, School of Science and Engineering, Waseda University
4/1/1991 - 9/15/1992 Associate Professor, Department of
Informatics, School of Science and Engineering, Waseda University
9/16/1992 - 3/31/2003 Professor, Department of Informatics, School
of Science and Engineering, Waseda University
4/1/2003 - Professor, Department of Computer Science, School of
Science and Engineering, Waseda University