Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6659860 | Game device, game machine operation device and game system which employ a half-duplex serial communication system and game device two-way communication method | Yasuyuki Yamamoto, Makoto Tanaka | 2003-12-09 |