Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6880534 | Evaporative fuel processing system | Koichi Yoshiki, Kazuhiko Imamura, Ryuji Kohno, Mahito Shikama, Toshiichi Terakado +1 more | 2005-04-19 |
| 6574954 | Electronic control unit for controlling ignition timing during reduction of NOx occluded by lean NOx catalyst | Junichi Suzuki, Masayuki Ueno, Osamu Kitamura | 2003-06-10 |
| 6484494 | Electronic control unit for controlling air fuel ratio to reduce NOx occluded in NOx catalyst | Minoru Shimaoka, Wataru Inagawa | 2002-11-26 |
| 6467471 | Air-fuel ratio controller for an internal-combustion engine | Wataru Inagawa | 2002-10-22 |
| 6314725 | Control device for internal combustion engine | — | 2001-11-13 |
| 6216655 | Valve operating control system for internal combustion engine | Koichi Yoshiki, Keiji Tsujii | 2001-04-17 |
| 6202610 | Valve operating control system for internal combustion engine | Koichi Yoshiki, Keiji Tsujii | 2001-03-20 |