Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5703285 | Diagnosis apparatus and method for an exhaust gas recirculation unit of an internal combustion engine | Kenichi Machida | 1997-12-30 |
| 5632257 | Diagnosis apparatus and method for an exhaust gas recirculation unit of an internal combustion engine | Kenichi Machida | 1997-05-27 |