Ryōgoku Kajinosuke IV
| Ryōgoku Kajinosuke IV | |
|---|---|
| 両国 梶之助 | |
| Personal information | |
| Born | Hideaki Kobayashi 30 July 1962 Nagasaki, Japan  | 
| Height | 1.85 m (6 ft 1 in) | 
| Weight | 171 kg (377 lb) | 
| Career | |
| Stable | Dewanoumi | 
| Record | 316-313-20 | 
| Debut | March, 1985 | 
| Highest rank | Komusubi (July, 1987) | 
| Retired | January, 1993 | 
| Elder name | Sakaigawa | 
| Championships | 1 (Jūryō) | 
| Special Prizes | Outstanding Performance (1) Fighting Spirit (1)  | 
| Gold Stars | 3 (Chiyonofuji) | 
Last updated: May, 2008  | |
Ryōgoku Kajinosuke IV (born 30 July 1962 as Hideaki Kobayashi) is a former sumo wrestler from Nagasaki, Japan. His highest rank was komusubi. He is now a sumo coach under the name of Sakaigawa.