Issued Patents 2002
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6481200 | Catalyst warming apparatus of internal combustion engine | Toshiaki Tanaka | 2002-11-19 |
| 6381952 | Exhaust temperature raising apparatus and method for internal combustion engine | Takamitsu Asanuma, Shunsuke Toshioka, Nobumoto Ohashi | 2002-05-07 |
| 6370869 | Exhaust purification device of an engine | Takamitsu Asanuma, Shunsuke Toshioka, Toshiaki Tanaka | 2002-04-16 |
| 6370871 | Internal combustion engine having lean NOx catalyst | Makoto Suzuki, Hideo Kobayashi, Toshiaki Tanaka, Kotaro Hayashi | 2002-04-16 |
| 6367246 | Exhaust gas purification device for internal combustion engine | Toshiaki Tanaka | 2002-04-09 |