Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8813477 | Exhaust purification system for internal combustion engine | Yuji Yasui | 2014-08-26 |
| 8187436 | Sensor deterioration judging apparatus and sensor deterioration judging method | Seiji Oya, Tomohiro Wakazono, Koji Shiotani, Tomonori Kondo, Mineji Nasu +2 more | 2012-05-29 |
| 7972488 | Sensor deterioration judging apparatus and sensor deterioration judging method | Seiji Oya, Tomohiro Wakazono, Koji Shiotani, Tomonori Kondo, Mineji Nasu +2 more | 2011-07-05 |