He received his B.E. and M.E. degrees from Kyushu University in 1985 and 1987, and his Ph.D from the University of Tokyo in 1998.
In 1987, he joined Toshiba Corporation. From 1990 to 1991, he was at Bellcore Inc., New Jersey, USA as a resident researcher. From 1994 to 1996, he was at Columbia University (USA). During his stay at Columbia University, he has proposed the CSR architecture, an origin of MPLS or Multi-Protocol Label Switching, to IETF. From 1996 to 1998, he conducted the CSR project in Toshiba as Chief Architect.
He is an Executive Director of IPv6 Promotion Council, a Vice Chair of JPNIC or the Japan Network Information Center, an IPv6 Forum Fellow, a director of WIDE Project, director of Japan Data Center Council, a director of Green University of Tokyo Project, and Chief Architect of Digital Agency Japan.
COVID-19 accelerates innovations of digitization with the Internet in all business sectors. Especially, the education and healthcare business has experienced huge impacts for their basic and essential business structure. For example, we realize that a lot of educational activities can be by online without physical appearance and that lectures can be not for few dozens in physical lecture room, but for millions in the Internet and in the cyber space, i.e., without the limitation of time, location, age or gender. This is "un-wire-ing" from anchors connected to physical domain. This shall lead the innovation of all systems on the globe with Internet-by-Design.
