Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7273414 | Race game device | Yuji Nagao, Takanori Akiyama, Naoki Kawajiri, Seiji Hayashi, Susumu Murata +8 more | 2007-09-25 |
| 6394898 | Race game device | Yuji Nagao, Takanori Akiyama, Naoki Kawajiri, Seiji Hayashi, Susumu Murata +8 more | 2002-05-28 |
| 5879235 | Ball game machine with a roulette-type rotary disk and a display located in the central area therein | Makoto Kaneko, Yasuo Jin, Takanori Akiyama | 1999-03-09 |