Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10309334 | Control device of internal combustion engine | Naoyoshi Matsubara | 2019-06-04 |
| 8020375 | Exhaust gas purification system for internal combustion engine | Takahiro Oba, Katsushi Takimoto | 2011-09-20 |
| 7246485 | Exhaust gas purifying device and method for internal combustion engine | Hisashi Ohki, Masaaki Kobayashi, Naofumi Magarida, Daisuke Shibata, Shinobu Ishiyama | 2007-07-24 |