2000 - Fellow of the Information Processing Society of Japan (IPSJ) for "International Contributions to Pioneering in and Establishing the Discipline of Visual Computing"
1999 - The 1998 Taylor L. Booth Education Award of IEEE Computer Society "for initiating and promoting computer and information science education in Japan and for seminal conributions towards the integration of computer-based educaion in all academic dis・・・
1996 - A Charter Member of the Elite Group "The 50th Anniversary Class of Golden Core Members of the IEEE Computer Society"
1991 - Fellow of the Institute of Electrical and Electronics Engineers (IEEE) For Contributions to Visual Computer and Visual Computation
1987 - Fellow of the Institute of Electrical and Electronics Engineers (IEEE) For Contributions to Visual Computer and Visual Computation
1984 - Certificate of Appreciation in Recognition of Understanding Ef- fort and Dedication to the Success of the SIGGRAPH'84 Conference and Exhibition from ACM
1984 - Certificate of Appreciation for Contribution to COMPSAC from IEEE Computer Society
1977 - The Niwa Prize of JICST (The Japan Information Center of Science and Technology) for "The Study on Chemical Information Processing System"
1975 - The Research Fellowship of the Electronic Research Laboratory, University of California, Berkeley
1974 - The IBM Research Fellowship
1973 - The Senior Overseas Research Fellowship of the Government of Japan