Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7980950 | Game machine and method with changing game field | Sakae Osumi, Akinori Nishiyama | 2011-07-19 |
| 5423067 | Digital mobile communications system and method for providing intensity/coverage reference maps using base stations and mobile stations | — | 1995-06-06 |