* Ph.D. in Science, Tokyo Metropolitan University, Hachioji, Tokyo, Japan, 2005.
* M. A. in Science, Tokyo Metropolitan University, Hachioji, Tokyo, Japan, 1995.
* B. A. in Literature, Ritsumeikan University, Kyoto, Japan, 1993.
* Ph.D. in Science, Tokyo Metropolitan University, Hachioji, Tokyo, Japan, 2005.
* M. A. in Science, Tokyo Metropolitan University, Hachioji, Tokyo, Japan, 1995.
* B. A. in Literature, Ritsumeikan University, Kyoto, Japan, 1993.