He received the B.E. degree in Electronics Engineering,
the M.S. and D.E. degrees in Information Engineering
from University of Tokyo in 1975, 1977 and 1989.
He stayed in Stanford University from 1978 to 1984
as a doctoral candidate. He joined IBM Research,
Tokyo Research Laboratory as a researcher in 1984,
and moved to Toho University in 2000.
He is currently a professor in Department of Information Science, Toho University. His research interest includes distributed operating systems, behavioral specification and verification of concurrent programs, and transport and applications of the computer networks. His recent works includes prioritized packet transfer of multimedia and prioritized Forward Error Correction.
He is a member of ACM, IEEE, IEICE, IPSJ and JSSST.