Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6810463 | Gaming machine that is usable with different game cartridge types | Satoru Okada, Kazuo Yoneyama, Ryuji Umezu, Takanobu Nakashima | 2004-10-26 |
| 6743104 | Portable game machine | Tetsuya Mominoki | 2004-06-01 |