Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6790142 | Advertisement distribution system and server | Kazuo Okada, Jun Fujimoto, Koji Nakagawa | 2004-09-14 |
| 6676520 | Video game system providing physical sensation | Satoshi Nishiumi, Kazuo Koshima | 2004-01-13 |
| 6238291 | Cartridge, game machine and bi-directional communication type game system | Jun Fujimoto, Masahiro Yamaguchi | 2001-05-29 |
| 6200253 | Controller pack | Satoshi Nishiumi, Kazuo Koshima | 2001-03-13 |
| 5897437 | Controller pack | Satoshi Nishiumi, Kazuo Koshima | 1999-04-27 |