IKO - International Karate Organization - 16th All Japan Open Karate Championship (1984)
Open Kumite
| Rang | Catégorie | Champion | Pays |
| 1 | Open Kumite | Hiroki Kurosawa | Japan |
| 2 | Open Kumite | Harutomo Takeyama | Japan |
| 3 | Open Kumite | Toshio Mizuguchi | Japan |
| 4 | Open Kumite | Masashi Kimoto | Japan |
| 5 | Open Kumite | Kazuhiko Ogasawara | Japan |
| 6 | Open Kumite | Katsuhito Gorai | Japan |
| 7 | Open Kumite | Tomoaki Shikishima | Japan |
| 8 | Open Kumite | Motomi Yuzawa | Japan |