+ Minor planets discovered: 56 see
is a Japanese seismologist, amateur astronomer and a discoverer of minor planets and comets.
Kushida is the founder of the Yatsugatake South Base Observatory. He is credited by the Minor Planet Center with the discovery of 56 numbered minor planets during 1988–1994, most of them in collaboration with astronomer Osamu Muramatsu, as well as with Masaru Inoue and with his wife Reiki Kushida. He also discovered and co-discovered the two periodic comets 144P/Kushida and 147P/Kushida-Muramatsu, respectively.
The main-belt asteroid 5605 Kushida, discovered by Satoru Otomo at Kiyosato in 1993, was named in his honor. Naming citation was published on 28 July 1999 ().
List of discovered minor planets
4458 Oizumi January 21, 1990 4577 Chikako November 30, 1988 4640 Hara April 1, 1989 4875 Ingalls February 19, 1991 5352 Fujita December 27, 1989 5403 Takachiho February 20, 1990 5405 Neverland April 11, 1991 5473 Yamanashi November 5, 1988 5489 Oberkochen January 17, 1993 5687 Yamamotoshinobu January 13, 1991 6308 Ebisuzaki January 17, 1990 6395 Hilliard October 21, 1990 6405 Komiyama April 30, 1992 6464 Kaburaki February 1, 1994 6612 Hachioji March 10, 1994 6643 Morikubo November 7, 1990 6667 Sannaimura March 14, 1994 6731 Hiei January 24, 1992 6865 Dunkerley October 2, 1991 6868 Seiyauyeda April 22, 1992 (6915) 1992 HH April 30, 1992 7068 Minowa November 26, 1994 7421 Kusaka April 30, 1992 7575 Kimuraseiji December 22, 1989 January 8, 1991 7775 Taiko December 4, 1992 January 8, 1991 7830 Akihikotago February 24, 1993 December 29, 1992 8691 Etsuko October 21, 1992 November 7, 1988 November 23, 1992 9190 Masako November 4, 1991 January 10, 1991 9746 Kazukoichikawa November 7, 1988 9844 Otani November 23, 1989 10144 Bernardbigot January 9, 1994 10566 Zabadak January 14, 1994 February 12, 1991 11528 Mie December 3, 1991 November 24, 1992 12342 Kudohmichiko January 30, 1993 November 7, 1988 November 4, 1991 14902 Miyairi January 17, 1993 December 8, 1990 October 31, 1992 16599 Shorland January 20, 1993 January 4, 1994 17563 Tsuneyoshi February 5, 1994 February 15, 1993 26829 Sakaihoikuen November 30, 1989 27791 Masaru February 24, 1993 162011 Konnohmaru January 4, 1994 with O. Muramatsu with M. Inoue with R. Kushida
References
External links http://www.nayoro-star.jp/photo/tenmondai-houmon/kushida.html (in Japanese) https://web.archive.org/web/20081010041555/http://www.obusession.com/guest/guest058.htm