Yasushi Ikei received a PhD degree in the industrial mechanical engineering from the University of Tokyo in 1988. He joined Tokyo Metropolitan Institute of Technology in 1992. After he worked for Tokyo Metropolitan University as Professor, he moved to the University of Tokyo. He is currently Project Professor at the Graduate School of Information Science and Technology, the UT. His research interests are in the virtual reality, ultra reality, telepresence, multisensory display, and cognitive engineering. He is a member of ACM, IEEE, and a fellow and former vice president of the Virtual Reality Society of Japan.