Masahiro Koishikawa
Masahiro Koishikawa is a Japanese astronomer. He has studied both major and minor planets, and has discovered multiple asteroids.
Koishikawa has been a staff member of the Sendai Astronomical Observatory since 1972. His research is based out of the Sendai's Ayashi station. The main-belt asteroid 6097 Koishikawa, discovered by Kin Endate and Kazuro Watanabe at Kitami in 1991, was named in his honor.
