+ Minor planets discovered: 8 1088 Mitaka 17 November 1927 1089 Tama 17 November 1927 1090 Sumida 20 February 1928 1098 Hakone 5 September 1928 1139 Atami 1 December 1929 1185 Nikko 17 November 1927 1266 Tone 23 January 1927 1584 Fuji 7 February 1927 co-discovered with K. Kubokawa
was a Japanese astronomer and discoverer of minor planets.
He is credited by the Minor Planet Center with the discovered 8 asteroids between 1927 and 1929.
The outer main-belt asteroid 2667 Oikawa was named in his memory. Naming citation was published on 1 June 1996 ().
References