Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6978599 | Fuel injection controlling apparatus for engine | Toshihiko Nishiyama | 2005-12-27 |
| 6813880 | Fuel injection controlling apparatus for engine | Toshihiko Nishiyama | 2004-11-09 |
| 6767378 | Exhaust gas purifying system for internal combustion engine | Toshihiko Nishiyama, Nobuhiko Emori | 2004-07-27 |
| 6647710 | Exhaust gas purifying apparatus for internal combustion engines | Toshihiko Nishiyama | 2003-11-18 |
| 6079203 | Apparatus and method for detecting deterioration of NO.sub.x catalyst in diesel engine | — | 2000-06-27 |