Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6763657 | Exhaust gas purifying method of internal combustion engine | Hiromichi Hisato | 2004-07-20 |
| 6755017 | Device for purifying exhaust gas of an internal combustion engine | Hideaki Katashiba, Kenro Mitsuda, Kouji Hamano | 2004-06-29 |
| 6672268 | Method and apparatus for controlling electromagnetic driving valve for internal combustion engine | Kenji Ogawa | 2004-01-06 |