Toshikazu Ohshima is a professor at Ritsumeikan University since 2006. He received a Doctorate from University of Tsukuba, Graduate School of Engineering. Then he joined in Canon Inc. and served as a researcher for research and development of virtual reality since 1991. He worked as a senior researcher in a national project at Mixed Reality Laboratory Inc. since 1997. He served as a section chief at MR R&D section in Canon Inc. since 2001. His research interests are mixed reality technologies and its deployment in education, medical and art field.