Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6401450 | Catalyst deterioration detector and method of detecting deterioration of catalyst | — | 2002-06-11 |
| 6370872 | Exhaust gas purifier for internal combustion engine | Takashi Watanabe, Kazuhiro Sakurai | 2002-04-16 |