Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6477834 | Exhaust emission controlling apparatus of internal combustion engine | Kenji Katoh, Masato Goto | 2002-11-12 |
| 6381952 | Exhaust temperature raising apparatus and method for internal combustion engine | Shinya Hirota, Shunsuke Toshioka, Nobumoto Ohashi | 2002-05-07 |
| 6370869 | Exhaust purification device of an engine | Shinya Hirota, Shunsuke Toshioka, Toshiaki Tanaka | 2002-04-16 |