IKO - International Karate Organization - 36th All Japan Open Karate Championship (2004)
Open Kumite
| Rang | Catégorie | Champion | Pays |
| 1 | Open Kumite | Kentaro Tanaka | Japan |
| 2 | Open Kumite | Tadakuni Tokuda | Japan |
| 3 | Open Kumite | Mikhail Kozlov | Russia |
| 4 | Open Kumite | Maxim Dedik | Russia |
| 5 | Open Kumite | Darmen Sadvokasov | Russia |
| 6 | Open Kumite | Kenshin Morimura | Japan |
| 7 | Open Kumite | Makoto Ikemoto | Japan |
| 8 | Open Kumite | Hiroyuki Kidachi | Japan |