Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6484494 | Electronic control unit for controlling air fuel ratio to reduce NOx occluded in NOx catalyst | Masayuki Wakui, Minoru Shimaoka | 2002-11-26 |
| 6467471 | Air-fuel ratio controller for an internal-combustion engine | Masayuki Wakui | 2002-10-22 |