Hidekazu Hanayama (b. 1977) is an astronomer at the National Astronomical Observatory of Japan. He works on observational studies of transient objects with the Murikabushi 1.05-m reflector at the Ishigakijima Astronomical Observatory and discovered a secondary nuclear condensation of comet 213P/Van Ness.
Discovered on 14-10-1996 in Kitami by Endate, K., Watanabe, K.