Became Chief Senior Researcher in 1990 and Director of Machine Understanding Division in 1991.
He became professor at Cooperative Graduate School, the University of Tsukuba in 1992 (to 2010), and Professor at the Graduate School of Information Science and Technology, the University of Tokyo in 2001 (to 2007).
He retired from National Institute of Advanced Industrial Science and Technology in 2012 and awarded the title of Emeritus Researcher.
[1] He has engaged in mathematical fundamental research and its application concerning pattern recognition, image processing, multivariate analysis, artificial intelligence, and neurocomputing.
In the Real World Computing (RWC) Project (MITI's 10 years national project during 1992-2001), he promoted the research and development of "real world intelligence," and established fundamentals to exploit new application fields of intelligent information processing and multimedia information processing.