Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6698188 | Emission control apparatus of internal combustion engine | Hiroshi Tanaka, Junichi Kako | 2004-03-02 |
| 6694724 | Exhaust emission control apparatus of internal combustion engine and control method of the same | Hiroshi Tanaka | 2004-02-24 |