Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7720565 | Ring management system | Kazutoshi Takada, Takaji Mukumoto, Hideshi Sato, Tetsuo Sugizono, Katsumune Inaki +3 more | 2010-05-18 |
| 7698018 | Ring management system | Kazutoshi Takada, Takaji Mukumoto, Hideshi Sato, Tetsuo Sugizono, Katsumune Inaki +3 more | 2010-04-13 |
| 7251545 | Ring management system | Kazutoshi Takada, Takaji Mukumoto, Hideshi Sato, Tetsuo Sugizono, Katsumune Inaki +3 more | 2007-07-31 |