•1940    Born at Urawa, Saitama, Japan (presently Urawa, Saitama, Saitama, Japan).

•1947 - 1953  Primary school attached to Saitama University.

•1953    Started taking photographs

•1953 - 1956  Junior high school attached to Saitama University.

•1956 - 1959  Hibiya metropolitan high school.

•1959 - 1963  The University of Tokyo (Department of Physics, Faculty of Science) High speed photography, X-ray photography

•1963    B. Sc.

•1963 - 1968  Graduate school of the University of Tokyo.  Plasma physics, Accelerator physics

•1965    M. Sc.

•1968    D. Sc.

•1969 - 1994  Japan Atomic Energy Research Institute (Head, Plasma Theory Laboratory, Nuclear Fusion Research).  Plasma physics, Nuclear fusion research, Computational physics

•1984    Started engraving stone seals

•1994 - 2006  The University of Electro-Communications (Professor, Department of Computer Sciences).  Computational physics, Neural network, Image processing

•2002    Started taking photographs by lensless cameras

•2006    Professor Emeritus, The University of Electro-Communications.  Started taking photographs by infrared and ultraviolet lights