Issued Patents All Time
Showing 1–25 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7966121 | Fuel efficiency display device for fuel cell vehicle, and fuel efficiency displaying method for fuel cell vehicle | Satoshi Aoyagi, Kenichiro Kimura | 2011-06-21 |
| 7270899 | On-board fuel cell powered electric vehicle | Takashi Kato, Makoto Anazawa, Harumi Hatano, Takayuki Ogawa, Kiyoshi Shimizu | 2007-09-18 |
| 6874588 | Fuel cell electric vehicle and a fuel cell system box | Takashi Kato, Makoto Anazawa, Harumi Hatano, Takayuki Ogawa, Kiyoshi Shimizu | 2005-04-05 |
| 5966930 | Catalyst deterioration-determining system for internal combustion engines | Gaku Hatano, Hideo Moriwaki, Yoshiaki Matsuzono, Hisato Shimizu, Yuji Fujiki | 1999-10-19 |
| 5850820 | Evaporative fuel control system for internal combustion engines | Kojiro Tsutsumi, Shigeto Kashiwabara, Yasunari Seki | 1998-12-22 |
| 5732687 | Evaporative fuel-processing system for internal combustion engines | Akira Hashimoto, Hideo Moriwaki, Shigeto Kashiwabara | 1998-03-31 |
| 5692486 | Air-fuel ratio sensor deterioration-detecting system for internal combustion engines | Kojiro Tsutsumi, Yuji Fujiki, Toshitaka Hachiro, Shigeto Kashiwabara, Fumio Hara | 1997-12-02 |
| 5690076 | Evaporative fuel-processing system for internal combustion engines | Akira Hashimoto, Hideo Moriwaki, Yoshiaki Matsuzono, Satoshi Kiso | 1997-11-25 |
| 5678523 | Evaporative fuel-processing system for internal combustion engines | Akira Hashimoto, Hideo Moriwaki, Yoshiaki Matsuzono, Satoshi Kiso | 1997-10-21 |
| 5676119 | Air-fuel ratio control system for internal combustion engines | Kojiro Tsutsumi, Shuichi Hosoi, Shigeto Kashiwabara, Katsuhiko Suzuki | 1997-10-14 |
| 5601064 | Fuel injection control system for internal combustion engines | Yutaka Taniguchi, Ryuji Sato, Keiji Tsujii, Toru Kitamura | 1997-02-11 |
| 5586544 | Fuel injection amount control system for internal combustion engines and intake passage wall temperature-estimating device used therein | Toru Kitamura, Akira Katoh, Katsuhiro Kumagai, Hiroshi Kitagawa, Shunichi Tsuzuki +2 more | 1996-12-24 |
| 5579747 | Device for detecting abnormality of fuel supply system of internal combustion engines | Ryuji Sato, Kojiro Tsutsumi, Hisashi Igarashi | 1996-12-03 |
| 5577488 | Air-fuel ratio sensor deterioration-detecting system for internal combustion engines | Ryuji Sato, Kojiro Tsutsumi, Toshitaka Hachiro, Hiroshi Kawaguchi | 1996-11-26 |
| 5542393 | Fuel injection amount control system for internal combustion engines | Akira Katoh, Hiroshi Kitagawa, Shunichi Tsuzuki, Jun Takahashi, Toshiaki Hirota | 1996-08-06 |
| 5524591 | Fuel supply amount control system for internal combustion engines | Toshiaki Hirota, Toru Kitamura, Masami Watanabe | 1996-06-11 |
| 5343700 | Air-fuel ratio control system for internal combustion engines | Toshikazu Oketani, Yoshiharu Abe | 1994-09-06 |
| 5263461 | Evaporative fuel-purging control system for internal combustion engines | Fumio Hosoda, Masakazu Kitamoto, Kojiro Tsutsumi | 1993-11-23 |
| 5224456 | Starting fuel supply control system for internal combustion engines | Fumio Hosoda, Hideo Moriwaki, Masakazu Kitamoto, Kazumi Yamazaki, Takashi Kiyomura | 1993-07-06 |
| 5216995 | Evaporative fuel-purging control system and air-fuel ratio control system associated therewith for internal combustion engines | Fumio Hosoda, Masashi Uchiyama, Toshikazu Oketani, Yoshiharu Abe, Kazumi Yamazaki +2 more | 1993-06-08 |
| 5216998 | Evaporative fuel-purging control system for internal combustion engines | Fumio Hosoda, Masakazu Kitamoto, Kazumi Yamazaki | 1993-06-08 |
| 5212947 | Failure-detecting device for air-fuel ratio sensors of internal combustion engines | Kojiro Tsutsumi | 1993-05-25 |
| 5201383 | Ignition timing control system for internal combustion engines | Hiroshi Kitagawa, Shunji Takahashi | 1993-04-13 |
| 5201173 | Catalyst temperature control system for internal combustion engines | Toshikazu Oketani, Yoshiyuki Abe, Kojiro Tsutsumi | 1993-04-13 |
| 5195495 | Evaporative fuel-purging control system for internal combustion engines | Masakazu Kitamoto, Fumio Hosoda, Hideo Moriwaki | 1993-03-23 |