Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6901746 | Exhaust gas deNOx apparatus for engine | Toshihiko Nishiyama | 2005-06-07 |
| 6681564 | Exhaust gas deNOx apparatus for engine | Toshihik Nishiyama | 2004-01-27 |
| 6199372 | Apparatus and method for regenerating NOx catalyst for diesel engine | — | 2001-03-13 |
| 6006515 | Exhaust denitration device for diesel engine | — | 1999-12-28 |
| 5894728 | Exhaust emission control device for diesel engines | — | 1999-04-20 |