16th All-Japan Open Championship in Kyokushin (IKO), 1984
Winners
- Hiroki Kurosawa — Japan
- Harutomo Takeyama — Japan
- Toshio Mizuguchi — Japan
- Masashi Kimoto — Japan
- Kazuhiko Ogasawara — Japan
- Katsuhito Gorai — Japan
- Tomoaki Shikishima — Japan
- Motomi Yuzawa — Japan