Koishikawa (disambiguation) From Wikipedia, the free encyclopedia Koishikawa may refer to: Koishikawa, locality within Bunkyo, Tokyo. People Masahiro Koishikawa (1952–2020), Japanese astronomer Astronomy 6097 Koishikawa, Asteroid named after the astronomer Fictional characters Miki Koishikawa, Marmalade Boy character. Jin Koishikawa, Marmalade Boy character. Chiyako Koishikawa, Marmalade Boy character. Topics referred to by the same term This disambiguation page lists articles associated with the title Koishikawa.If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article. Related Articles