Issued Patents All Time
Showing 26–50 of 119 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6922626 | Control apparatus for exhaust gas recirculation valve | Tetsuya Ishiguro, Yuji Yasui, Takahide Mizuno | 2005-07-26 |
| 6848420 | Control system for throttle valve actuating device | Tetsuya Ishiguro, Masahiro Sato, Eiji Hashimoto | 2005-02-01 |
| 6789525 | Failure diagnosis apparatus for throttle valve actuating device | Tetsuya Ishiguro, Masahiro Sato, Eiji Hashimoto | 2004-09-14 |
| 6763655 | Catalyst state detector for exhaust gas purifying catalyst | Masaki Ueno, Masahiro Sato, Hideharu Yamazaki, Tetsuo Endo, Yoshihisa Iwaki +2 more | 2004-07-20 |
| 6698186 | Air-fuel ratio controller for internal combustion engines | Masaki Ueno, Yoshihisa Iwaki, Hiroshi Kitagawa | 2004-03-02 |
| 6681567 | Control system for internal combustion engine | Yuji Yasui, Masaki Ueno, Yoshihisa Iwaki, Masahiro Sato | 2004-01-27 |
| 6647972 | State determining apparatus for exhaust gas recirculation system | Masahiro Sato, Yoshihisa Iwaki, Masaki Ueno, Yasuyuki Miyahara | 2003-11-18 |
| 6640540 | Adsorbent state determining apparatus | Masahiro Sato, Yoshihisa Iwaki, Masaki Ueno, Yuji Yasui | 2003-11-04 |
| 6601444 | Exhaust gas characteristic detecting apparatus for internal combustion engine | Kenichi Ohmori, Kei Machida, Norihito Watanabe | 2003-08-05 |
| 6581370 | Failure determination device for humidity sensor and control system for exhaust passage changeover valve | Masahiro Sato, Yoshihisa Iwaki, Masaki Ueno, Takashi Haga, Tadashi Sato +1 more | 2003-06-24 |
| 6550449 | Control system for internal combustion engine | Yoshihisa Iwaki, Masaki Ueno | 2003-04-22 |
| 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 |
| 6327850 | Air-fuel ratio control apparatus for multicylinder internal combustion engine | Yuji Yasui, Yoshihisa Iwaki | 2001-12-11 |
| 6292739 | Air-fuel ratio control system for internal combustion engine | Yuji Yasui, Tadashi Sato, Masaki Ueno, Yoshihisa Iwaki, Hiroshi Tagami +1 more | 2001-09-18 |
| 6276131 | Apparatus for controlling internal combustion engine | Masaki Ueno, Yuji Yasui, Yoshihisa Iwaki, Tadashi Sato | 2001-08-21 |
| 6266605 | Plant control system | Yuji Yasui, Tadashi Sato, Masaki Ueno, Yoshihisa Iwaki | 2001-07-24 |
| 6230486 | Plant control system | Yuji Yasui, Tadashi Sato, Masaki Ueno, Yoshihisa Iwaki | 2001-05-15 |
| 6195988 | Air-fuel ratio control system for internal combustion engine | Yuji Yasui, Tadashi Sato, Masaki Ueno, Yoshihisa Iwaki | 2001-03-06 |