Awards: 2008
ISAAC 2008 Best Paper Award; 2008
IEICE　Achievement Award; 2008
Prizes for Science and Technology (Research Category)
The Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology; 2006
ICF Best Research Award; 2003
FUNAI Information Science Promotion Award; 1999
Telecommunication Foundation Award; 1996
Fellow, Association for Computing Machinery (ACM); 1995
Fellow, The Institute of Electrical and Electronics Engineers, Inc. (IEEE); 1994
Best Paper Award
The Japan Society for Industrial and Applied Mathematics; 1990
Best Paper Award of 30th Anniversary of IPSJ
Information Processing Society, Japan; 1989
Best Paper Award
Institution of Electric Information and Communication Engineerings, Japan

Awards