Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5755619 | Bingo game machine | Shiro Majima | 1998-05-26 |
| 5639089 | Bingo game machine having a rotatable roulette unit which catches balls for randomly selecting bingo signs | Shiro Majima | 1997-06-17 |