Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9970342 | Exhaust gas purification device for internal combustion engine | Ryosaku Takahara, Koichi Inaba, Nobuhiro Komatsu, Takahiro Kogawa, Michitaka Yamaguchi | 2018-05-15 |
| 9599001 | Exhaust purification system for internal combustion engine | Yuji Yasui, Eiji Hashimoto, Hideki Matsunaga, Hisao Haga | 2017-03-21 |
| 9032714 | Exhaust purification system for internal combustion engine | Yuji Yasui, Hideki Matsunaga, Naohiro Sato | 2015-05-19 |
| 8978367 | Exhaust gas purifying system of internal combustion engine | Hideki Matsunaga, Yuji Yasui, Naohiro Sato, Eiji Hashimoto | 2015-03-17 |
| 8875497 | Exhaust purification system for internal combustion engine | Hideki Matsunaga, Yuji Yasui, Eiji Hashimoto, Hisao Haga, Naohiro Sato | 2014-11-04 |