Issued Patents All Time
Showing 51–75 of 112 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9010093 | Exhaust gas purification apparatus for an internal combustion engine | Kenji Sakurai, Yasuyuki Irisawa, Yuji Miyoshi | 2015-04-21 |
| 8965665 | Air-fuel ratio imbalance determining apparatus among cylinders for an internal combustion engine | Yasushi Iwazaki, Hiroshi Miyamoto, Fumihiko Nakamura, Hiroshi Sawada | 2015-02-24 |
| 8943814 | Warm-up system for exhaust system of internal combustion engine | Daisuke Shibata, Hiroshi Sawada, Kazuya Takaoka | 2015-02-03 |
| 8903625 | Air-fuel ratio imbalance among cylinders determining apparatus for a multi-cylinder internal combustion engine | Hiroshi Sawada, Yasushi Iwazaki, Fumihiko Nakamura | 2014-12-02 |
| 8845783 | Failure detection apparatus and failure detection method for a particulate filter | Kazuya Takaoka, Daisuke Shibata, Hiroshi Sawada | 2014-09-30 |
| 8818693 | Engine system control device | Koichi Kimura, Hiroshi Sawada | 2014-08-26 |
| 8806928 | Catalyst deterioration detection apparatus and catalyst deterioration detection method for internal combustion engine | Daisuke Shibata, Hiroshi Sawada, Akihiko Itakura | 2014-08-19 |
| 8800269 | Fuel injection system of an internal combustion engine | Yusuke Nakayama, Hiroshi Sawada | 2014-08-12 |
| 8744729 | Apparatus and method for detecting abnormal air-fuel ratio variation among cylinders of multi-cylinder internal combustion engine | Yasushi Iwazaki, Hiroshi Sawada, Fumihiko Nakamura | 2014-06-03 |
| 8725387 | Apparatus for determining an air-fuel ratio imbalance among cylinders of an internal combustion engine | Yasushi Iwazaki, Hiroshi Miyamoto, Fumihiko Nakamura, Hiroshi Sawada | 2014-05-13 |
| 8656700 | Filter failure detection apparatus of an internal combustion engine | Daisuke Shibata, Hiroshi Sawada, Taiga Hagimoto, Kazuya Takaoka | 2014-02-25 |
| 8650943 | Apparatus for determining an air-fuel ratio imbalance among cylinders of an internal combustion engine | Koichi Kimura, Hiroshi Sawada, Yasushi Iwazaki | 2014-02-18 |
| 8649956 | Apparatus for acquiring responsibility of oxygen concentration sensor | Yusuke Kawamura, Takuya Matsumoto, Takashi Nakamura, Makoto Sato, Hiroshi Sawada +1 more | 2014-02-11 |
| 8534046 | Apparatus and method for diagnosing catalyst deterioration | Hiroshi Miyamoto, Hiroshi Sawada, Yasushi Iwazaki, Koichi Kimura, Koichi Kitaura | 2013-09-17 |
| 8509984 | Monitoring apparatus for a multi-cylinder internal combustion engine | Hiroshi Sawada, Yasushi Iwazaki, Fumihiko Nakamura, Shuntaro Okazaki, Masanori Ishida | 2013-08-13 |
| 8485015 | Degradation detection system for NOx sensor, and degradation detection method therefor | Kenji Sakurai | 2013-07-16 |
| 8447497 | Apparatus for determining an air-fuel ratio imbalance among cylinders of an internal combustion engine | Yasushi Iwazaki, Hiroshi Miyamoto, Fumihiko Nakamura, Hiroshi Sawada | 2013-05-21 |
| 8370043 | Apparatus for determining an air-fuel ratio imbalance among cylinders of an internal combustion engine | Hiroshi Sawada, Yasushi Iwazaki, Fumihiko Nakamura | 2013-02-05 |
| 8346462 | Malfunction detection apparatus and malfunction detection method for an EGR system | Yoshitaka Nakamura, Hiroshi Sawada, Shinya Taira | 2013-01-01 |
| 8249794 | Inter-cylinder air-fuel ratio imbalance judgment device for multi-cylinder internal combustion engine | Hiroshi Miyamoto, Hiroshi Sawada, Yasushi Iwazaki, Tatsuya Tsuji | 2012-08-21 |
| 8171781 | Abnormality diagnosis apparatus and abnormality diagnosis method for NOx catalyst | Daisuke Shibata, Hiroshi Sawada | 2012-05-08 |
| 8047064 | Apparatus and method for detecting abnormality of inter-cylinder air-fuel ratio dispersion in multi-cylinder internal combustion engine | Yasushi Iwazaki, Hiroshi Sawada, Keiji Imamura, Fumihiko Nakamura | 2011-11-01 |
| 8024105 | Apparatus and method for detecting abnormal air-fuel ratio variation among cylinders of multi-cylinder internal combustion engine | Yasushi Iwazaki, Hiroshi Sawada, Keiji Imamura, Fumihiko Nakamura | 2011-09-20 |
| 7597091 | Air-fuel ratio control apparatus and method for an internal combustion engine | Yusuke Suzuki, Yasushi Iwazaki, Hiroshi Sawada, Fumihiko Nakamura, Keiichiro Aoki | 2009-10-06 |
| 7481101 | Evaporated fuel treatment device for internal combustion engine | Takuji Matsubara, Yoshihiko Hyodo | 2009-01-27 |