He received a B.A. in physics from the International Christian University, Tokyo, and a Ph.D. in computer science from Kyoto University. He has been a visiting researcher at the Center for Machine Translation at Carnegie Mellon University from 1988 to 1994. From 1998, he worked as a Project Director at Kitano Symbiotic Systems Project, ERATO, JST, and it's succeeding project through 2008. He is also an Editor-in-Chief of npj Systems Biology and Applications, and a Founding Trustee of The RoboCup Federation. He engages in the studies such as computational biology, artificial intelligence, massively parallel computer, autonomous robot, systems biology, and open energy system. He is named fellow by the Association for the Advancement of Artificial Intelligence (AAAI) in 2021