Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8903599 | Failure determination device for shutter device of vehicle | Daisuke Sato, Hidetaka Maki, Hiroyuki Ohnishi, Masatoshi Endo | 2014-12-02 |
| 6603278 | Control system for hybrid vehicle | Yusuke Tatara, Motoshi Ishikawa, Yutaka Tamagawa, Tetsu Sugiyama, Toru Yano | 2003-08-05 |
| 6477458 | Air-fuel ratio control apparatus for internal combustion engine | Yuji Yasui | 2002-11-05 |
| 6427438 | Method of evaluating deteriorated state of catalytic converter for purifying exhaust gas | Yuji Yasui | 2002-08-06 |
| 6369531 | Control system for hybrid vehicle | Yusuke Tatara, Motoshi Ishikawa, Yutaka Tamagawa, Tetsu Sugiyama, Toru Yano | 2002-04-09 |
| 6330498 | Control system for hybrid vehicle | Yutaka Tamagawa, Motoshi Ishikawa, Toru Yano | 2001-12-11 |
| 6138784 | Control system for hybrid vehicle | Hideki Minami, Yusuke Tatara, Toru Yano, Yutaka Tamagawa | 2000-10-31 |
| 6140780 | Control system for hybrid vehicle | Yusuke Tatara, Motoshi Ishikawa, Yutaka Tamagawa, Tetsu Sugiyama, Toru Yano | 2000-10-31 |
| 5937638 | Method of judging deterioration of catalytic converter for purifying exhaust gas | Shusuke Akazaki, Kohei Hanada, Yuji Yasui | 1999-08-17 |
| 5939848 | Control system for hybrid vehicle | Toru Yano, Yutaka Tamagawa, Motoshi Ishikawa | 1999-08-17 |
| 5713197 | Catalyst deterioration-detecting system for internal combustion engines | Ken Ogawa, Hidehito Ikebe, Yasunori Ehara | 1998-02-03 |
| 5638792 | Control system for internal combustion engines | Ken Ogawa | 1997-06-17 |
| 5611316 | Gas fuel supply mechanism for gas combustion engine | Atsushi Kato, Mitsuru Ikeo, Toshiyuki Nishida, Kazuhiro Ueda, Katsunori Nakamura +3 more | 1997-03-18 |
| 5509389 | Ignition timing control system for internal combustion engines | Ken Ogawa, Toshiyuki Nishida | 1996-04-23 |
| 5483938 | Air-fuel ration control system for internal combustion engines | Ken Ogawa | 1996-01-16 |
| 5483935 | Control system for internal combustion engines | Ken Ogawa, Yasunori Ehara, Kei Machida, Atsushi Kato | 1996-01-16 |
| 5426938 | Control system for internal combustion engines | Ken Ogawa, Yasunori Ehara, Kei Machida, Atsushi Kato | 1995-06-27 |
| 5357754 | Catalyst deterioration-detecting device for internal combustion engines | Ken Ogawa, Atsushi Kato | 1994-10-25 |
| 5353773 | Air-fuel ratio control system for internal combustion engines | Ken Ogawa, Kei Machida | 1994-10-11 |
| 5343846 | Control system for internal combustion engines | Ken Ogawa | 1994-09-06 |