Professor, Chiba University of Commerce
Professor, Emeritus, Tokyo Institute of Technology
Professor Emeritus, University of Tsukuba

He received his BA degree in 1976, M.A. degree in 1978, both from the University of Tokyo, Japan, and had the Doctor of Engineering Degree in 1991 from Tokyo Institute of Technology, Japan.

During 1978 and 1989, he was research scientist at the Central Research Institute of the Electric Power Industry. During 1990 and 2003, he was a professor of University of Tsukuba. During 2003 ans 2018, he wa a professor of Tokyo Institute of Technology. His research interests include Genetic Algorithm-based machine learning, Case-based reasoning, Analogical reasoning, Distributed Artificial Intelligence, Cooperative Agents, Computational Organization Theory., and Knowledge System Development Methodology.

He is a member of the editorial board of major AI-related academic societies in Japan and a member of IEEE, AAAI,　ACM, and PAAA (president).

ORCID: https://orcid.org/0000-0002-2364-6950