Bachelor of Engineering, Kyoto University, Japan, 1973. Master of Engineering, Kyoto University, Japan, 1975. Doctor of Engineering, Kyoto University, Japan, 2003.
Sales manager Toyo Seikan Kaisha, Ltd., 1998, marketing manager, 1998—2000. Chief researcher corporation Research and Development Toyo Seikan Group, Yokohama, Japan, 1990—1998, Research and Development department director, 2000—2003, head corporation Research and Development, since 2003. Board directors Toyo Seikan Kaisha, Ltd., Japan.
Member of Japan Society Polymer Processing, Society Rheology, Japan Society for Technology of Plasticity.
Married Atsuko Maruhashi. Children: Yoshihiro, Yuko, Toshiaki, Misako.