Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6796118 | Exhaust gas purification system and method for internal combustion engine | — | 2004-09-28 |
| 6792751 | Exhaust gas purification device and method for diesel engine | Hajime Kokusyo, Hiroaki Kaneko, Motohisa Kamijo | 2004-09-21 |
| 6698185 | Exhaust gas purification apparatus and process for internal combustion engine | — | 2004-03-02 |