Claim: Kōyō Kawanishi was discovered only a few stars, making his discoveries before 1989.
Evidence: Kōyō Kawanishi (川西 浩陽, Kawanishi Kōyō, born January 18, 1959) is a Japanese dentist, amateur astronomer and discoverer of 13 minor planets. At the observatory, he observes comets and minor planets using his home-made 0.20-m reflector telescope together with his wife Kumi and daughter Saki. Minor planets discovered: 13 December 8, 1990 November 11, 1990 November 11, 1990 May 3, 1991 November 11, 1990 October 15, 1990 October 28, 1990