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Hiroshi Esaki

Hiroshi Esaki is a professor in the Graduate School of Information Science and Technology at the University of Tokyo.

In 1987, he joined Research and Development Center, Toshiba Corporation, where he engaged in the research of ATM systems.

From 1990 to 1991, he has been at Bellcore Inc., New Jersey (USA), as a residential researcher.

From 1994 to 1996, he has been at Columbia University in New York (USA).

He has proposed the CSR architecture, that is one of the origin of MPLS(Multi-Protocol Label Switching), to the IETF and to the ATM Forum. From 1998, he has served as a professor at the University of Tokyo, and as a board member of WIDE Project (

From 1997, he has involved in many of the IPv6 research and development at the WIDE project. He is a co-founder of series of IPv6 special project in the WIDE project, e.g., KAME project, TAHI project USAGI project. He is an executive director of IPv6 promotion council, an vice chair of JPNIC(Japan Network Information Center), and chair of IPv6 Ready Logo Program run by IPv6 Forum.