Issued Patents 2002
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6477458 | Air-fuel ratio control apparatus for internal combustion engine | Yoshikazu Oshima | 2002-11-05 |
| 6449944 | Method of judging deterioration of emission gas control catalyst device | Shusuke Akazaki, Yoshihisa Iwaki, Tadashi Satoh, Masaki Ueno | 2002-09-17 |
| 6427438 | Method of evaluating deteriorated state of catalytic converter for purifying exhaust gas | Yoshikazu Oshima | 2002-08-06 |
| 6401451 | Degradation discrimination system of internal combustion engine exhaust gas purification system | Yushihisa Iwaki, Tadashi Satoh, Masahiro Satoh | 2002-06-11 |
| 6389804 | Degradation discrimination system of internal combustion engine exhaust gas purification system | Yoshihisa Iwaki, Tadashi Satoh, Masahiro Satoh | 2002-05-21 |
| 6378296 | Degradation discrimination system of internal combustion engine exhaust gas purification system | Yoshihisa Iwaki, Masahiro Satoh | 2002-04-30 |
| 6370473 | Air-fuel ratio control apparatus for multicylinder internal combustion engine | Shusuke Akazaki, Yoshihisa Iwaki | 2002-04-09 |
| 6367245 | Method of evaluating deteriorated state of exhaust gas adsorbent | Tetsuo Endo, Tadashi Sato, Shiro Takakura | 2002-04-09 |
| 6354076 | Exhaust gas purification system of internal combustion engine | Shusuke Akazaki, Tadashi Satoh, Yoshihisa Iwaki, Masaki Ueno, Takashi Haga +1 more | 2002-03-12 |
| 6334304 | Degradation discrimination system of internal combustion engine exhaust gas purification system | Kei Machida, Tetsuo Endo, Shiro Takakura | 2002-01-01 |