1974-1977 Kaisei Junior High School.
1977-1980 Kaisei High School.
1980-1984 Dept of Naval Architecture,
Faculty of Engineering, University of
1984-1986 Dept of Naval Architecture,
1986-1996 Research Engineer at Bridgestone Corporation.
1990-1993 Dept of Chemical Engineering and
1996-2004 Associate Professor at
Department of Environmental and Ocean Engineering,
2004-2007 Professor at Department of Environment Systems, School
of Frontier Sciences,
2008-now Professor at Department of Ocean Technology, Policy, and Environment, School of Frontier Sciences, University of Tokyo.