Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7788905 | Fuel fractionation method and fuel fractionation apparatus for internal combustion engine | Shinya Hirota | 2010-09-07 |
| 7703277 | Exhaust gas purifying apparatus for internal combustion engine | Tametoshi Mizuta, Takashi Karita, Tomihisa Oda, Kuniaki Niimi | 2010-04-27 |
| 7442015 | Fuel feed apparatus with reinforcing structure | Kiyotoshi Oi, Keiichi Yamashita | 2008-10-28 |
| 7107942 | Fuel composition supply means for spark ignition engines | Walter Weissman, Randall D. Partridge, Bhupender S. Minhas, Guido Sartori, Yoshihiro Iwashita +2 more | 2006-09-19 |
| 7052597 | Tuning fuel composition for driving cycle conditions in spark ignition engines | Walter Weissman, John T. Farrell, Alan M. Schilowitz, John E. Johnston, Kazuhiro Akihama | 2006-05-30 |
| 6972093 | Onboard fuel separation apparatus for an automobile | Randall D. Partridge, Walter Weissman, Yoshihiro Iwashita | 2005-12-06 |
| 6901750 | Exhaust emission control apparatus and method for internal combustion engine | Shunsuke Toshioka, Shinya Hirota, Yoshimitsu Henda, Kazuhiro Itoh, Takamitsu Asanuma +4 more | 2005-06-07 |
| 6901743 | Exhaust gas purifying method, exhaust gas purifying apparatus, and exhaust gas collecting apparatus of internal combustion engine | Takamitsu Asanuma, Toshiaki Tanaka, Shinya Hirota, Tetsuya Yamashita, Yasuaki Nakano | 2005-06-07 |
| 6725827 | Spark ingition stratified combustion internal combustion engine | Takeshi Okumura, Shigeo Furuno, Satoshi Iguchi, Kazuhiro Akihama, Masahiro Taki +1 more | 2004-04-27 |
| 6711893 | Fuel supply apparatus for an internal combustion engine | Takeshi Okumura, Yoshihiro Iwashita, Kazuhiro Akihama, Masahiro Taki, Satoshi Yamazaki +2 more | 2004-03-30 |
| 6622663 | Fuel composition supply means for driving cycle conditions in spark ignition engines | Walter Weissman, Randall D. Partridge, Bhupender S. Minhas, Guido Sartori, Yoshihiro Iwashita +2 more | 2003-09-23 |
| RE37714 | Combustion chamber structure for an internal combustion engine | Takeshi Okumura, Shizuo Sasaki | 2002-05-28 |
| 5819700 | Combustion chamber structure for an internal combustion engine | Takeshi Okumura, Shizuo Sasaki | 1998-10-13 |
| 5771872 | Combustion chamber of an internal combustion engine | Takeshi Okumura | 1998-06-30 |
| 5505173 | Spark ignition engine with a fuel injector for injecting fuel directly into the cylinder | Shizuo Sasaki | 1996-04-09 |
| 5233956 | Internal combustion engine | Shizuo Sasaki | 1993-08-10 |
| 5207058 | Internal combustion engine | Shizuo Sasaki | 1993-05-04 |