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-discoverer 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 .
| important;" | ||
|---|---|---|
| January 21, 1990 | ||
| November 30, 1988 | ||
| April 1, 1989 | ||
| February 19, 1991 | ||
| December 27, 1989 | ||
| February 20, 1990 | ||
| April 11, 1991 | ||
| November 5, 1988 | ||
| January 17, 1993 | ||
| January 13, 1991 | ||
| January 17, 1990 | ||
| October 21, 1990 | ||
| April 30, 1992 | ||
| February 1, 1994 | ||
| March 10, 1994 | ||
| November 7, 1990 | ||
| March 14, 1994 | ||
| January 24, 1992 | ||
| October 2, 1991 | ||
| April 22, 1992 |
| important;" | ||
|---|---|---|
| April 30, 1992 | ||
| November 26, 1994 | ||
| April 30, 1992 | ||
| December 22, 1989 | ||
| January 8, 1991 | ||
| December 4, 1992 | ||
| January 8, 1991 | ||
| February 24, 1993 | ||
| December 29, 1992 | ||
| October 21, 1992 | ||
| November 7, 1988 | ||
| November 23, 1992 | ||
| November 4, 1991 | ||
| January 10, 1991 | ||
| November 7, 1988 | ||
| November 23, 1989 | ||
| January 9, 1994 | ||
| January 14, 1994 | ||
| February 12, 1991 | ||
| December 3, 1991 |
| important;" | |
|---|---|
| November 24, 1992 | |
| January 30, 1993 | |
| November 7, 1988 | |
| November 4, 1991 | |
| January 17, 1993 | |
| December 8, 1990 | |
| October 31, 1992 | |
| January 20, 1993 | |
| January 4, 1994 | |
| February 5, 1994 | |
| February 15, 1993 | |
| November 30, 1989 | |
| February 24, 1993 | |
| January 4, 1994 | |
| with O. Muramatsu with M. Inoue with R. Kushida |