Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6381952 | Exhaust temperature raising apparatus and method for internal combustion engine | Takamitsu Asanuma, Shinya Hirota, Nobumoto Ohashi | 2002-05-07 |
| 6370869 | Exhaust purification device of an engine | Shinya Hirota, Takamitsu Asanuma, Toshiaki Tanaka | 2002-04-16 |