Issued Patents 2002
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6449944 | Method of judging deterioration of emission gas control catalyst device | Yuji Yasui, Yoshihisa Iwaki, Tadashi Satoh, Masaki Ueno | 2002-09-17 |
| 6449943 | Method of evaluating deteriorated state of catalytic converter for purifying exhaust gas | Masaki Ueno, Yoshihisa Iwaki | 2002-09-17 |
| 6427670 | Fuel gas feeding system | Hiroyuki Goto, Hideharu Yamazaki, Yoshihito Sakurai | 2002-08-06 |
| 6422006 | Exhaust gas purifying apparatus for internal combustion engine | Kenichi Ohmori, Norihito Watanabe, Kei Machida | 2002-07-23 |
| 6401698 | Vehicle fuel gas supply system | Hideharu Yamazaki, Akifumi Otaka, Hiroyuki Goto | 2002-06-11 |
| 6390075 | Vehicle fuel gas supply system | Hideharu Yamazaki, Akifumi Otaka, Hiroyuki Goto | 2002-05-21 |
| 6370473 | Air-fuel ratio control apparatus for multicylinder internal combustion engine | Yuji Yasui, Yoshihisa Iwaki | 2002-04-09 |
| 6354076 | Exhaust gas purification system of internal combustion engine | Yuji Yasui, Tadashi Satoh, Yoshihisa Iwaki, Masaki Ueno, Takashi Haga +1 more | 2002-03-12 |