Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D623240 | Card game device | — | 2010-09-07 |
| D561840 | Simulated game device | — | 2008-02-12 |
| 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 |