Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6820413 | State determining apparatus for exhaust gas purifier | Masaki Ueno, Yoshihisa Iwaki, Yasuyuki Miyahara, Tadashi Sato | 2004-11-23 |
| 6820416 | Exhaust emission control system for an internal combustion engine | Masaki Ueno, Kei Machida | 2004-11-23 |
| 6799420 | Method of evaluating deteriorated state of hydrocarbon adsorbent | Masaki Ueno, Tetsuo Endo, Hideharu Yamazaki, Kei Machida, Yasuyuki Miyahara +1 more | 2004-10-05 |
| 6792749 | Exhaust gas purifying apparatus for internal combustion engine | Masaki Ueno, Yasuyuki Miyahara, Tadashi Sato | 2004-09-21 |
| 6758033 | State determining apparatus for exhaust gas purifier | Masaki Ueno, Yoshihisa Iwaki, Masahiro Sato, Tetsuo Endo | 2004-07-06 |