横浜市立大学
Ogawa received his M.D. in 1985 and his doctorate in Pathology in 1989 from Yokohama City University. After clinical residency in Urology, he worked as an urologist at several hospitals in Yokohama and neighboring cities. Wishig to study germ cells, he served as a postdoctoral fellow under Ralph L. Brinster at University of Pennsylvania between 1995 and 1998. On returning to Japan, he became a member of the faculty of Yokohama City University.