Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9522327 | Game system | Kazuhiro Kusuda, Takashi Uchiyama, Shogo Azuma, Shinya Ito, Norifumi Kawai | 2016-12-20 |
| 6254479 | Game machine | Ryosuke Toriyama, Takaaki Ishii, Yukari Shibata, Yukio Ozaki | 2001-07-03 |
| 5706927 | Token discriminating device | Takashi Kumabe, Norio Tone, Takashi Hamano | 1998-01-13 |