Master of Science, Royal Institute of Technology, Stockholm, 1985. Doctor of Philosophy, Royal Institute of Technology, Stockholm, 1991.
Postdoctoral fellow, Governmental Industrial Research Institute-Tohoku, Sendai, Japan, 1992-1993; research engineer, Vattenfall Utveckling AB, Älvkarleby, Sweden, 1993-1997; research engineer, Forsmarks Kraftgrupp AB, Östhammar, Sweden, since 1998.
Married Izumi Watabe, February 14, 1993. Children: Navid Toshikazu, David Yamato.