Issued Patents All Time
Showing 51–75 of 83 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804454 | Oxygen concentration sensing apparatus | Yasunari Seki, Takanori Shiina, Minoru Muroya | 1989-02-14 |
| 4803898 | Apparatus for detecting a neutral state of a transmission gear of a vehicle engine system | Yoshitaka Hibino, Takeshi Fukuzawa, Hiromitsu Sato, Atsushi Totsune | 1989-02-14 |
| 4789817 | Control system for an engine-driven AC generator | Genzo Hosono | 1988-12-06 |
| 4774920 | Idling speed control system for internal combustion engines | Hiroshi Hasebe, Michio Sakaino, Yukio Miyashita | 1988-10-04 |
| 4771755 | Abnormality detecting method for air-fuel ratio control system for internal combustion engines | Hiroshi Hasebe, Shinichi Kubota, Yoshitaka Hibino, Koji Kajita, Atsushi Totsune | 1988-09-20 |
| 4770148 | Method of controlling operation of internal combustion engines in dependence upon intake air temperature | Yoshitaka Hibino, Takeshi Fukuzawa, Hiromitsu Sato | 1988-09-13 |
| 4767520 | Device for detecting air-fuel ratio of engine | Tomohiko Kawanabe, Noritaka Kushida | 1988-08-30 |
| 4762604 | Oxygen concentration sensing apparatus | Noritaka Kushida, Takanori Shiina, Shin'ichi Kubota | 1988-08-09 |
| 4763265 | Air intake side secondary air supply system for an internal combustion engine with an improved duty ratio control operation | Tomohiko Kawanabe, Noritaka Kushida, Yasunari Seki, Takanori Shiina, Minoru Muroya | 1988-08-09 |
| 4757683 | Exhaust gas recirculation method for internal combustion engines | Tomohiko Kawanabe, Katsuhiko Kimura, Takanori Shiina | 1988-07-19 |
| 4753202 | Idling speed control system for internal combustion engines | Hiroshi Hasebe, Michio Sakaino, Yukio Miyashita | 1988-06-28 |
| 4752883 | Method for directing an up-shift operation for a vehicle having a manual transmission | Noritaka Kushida, Katsuhisa Amano, Hiroshi Hasebe, Tomohiko Kawanabe, Masahiro Ueda +1 more | 1988-06-21 |
| 4750461 | Idling speed control system for internal combustion engines | Hiroshi Hasebe, Michio Sakaino, Yukio Miyashita | 1988-06-14 |
| 4750466 | Exhaust gas recirculation method for internal combustion engines for automotive vehicles | Yoshitaka Hibino, Takeshi Fukuzawa, Hiromitsu Sato | 1988-06-14 |
| 4736720 | Idling speed control system for internal combustion engines | Hiroshi Hasebe, Haruo Shimamura, Michio Sakaino | 1988-04-12 |
| 4732127 | Air/fuel ratio control system for an internal combustion engine with a function for preventing the blackening phenomenon of oxygen concentration sensor | Tomohiko Kawanabe, Katsuhiko Kimura, Minoru Muroya | 1988-03-22 |
| 4721084 | Method for controlling an oxygen concentration sensor for sensing an oxygen concentration in an exhaust gas of an internal combustion engine | Tomohiko Kawanabe, Minoru Muroya, Katsuhiko Kimura, Noritaka Kushida, Hiroshi Hasebe | 1988-01-26 |
| 4715352 | Air intake side secondary air supply system for an internal combustion engine with a duty ratio control operation | Tomohiko Kawanabe, Noritaka Kushida, Katsuhiko Kimura | 1987-12-29 |
| 4715350 | Air intake side secondary air supply system for an internal combustion engine with a duty ratio control operation | Tomohiko Kawanabe, Noritaka Kushida, Yasunari Seki | 1987-12-29 |
| 4706637 | Oxygen concentration sensing device for an air-fuel ratio control system of an automotive internal combustion engine | Tomohiko Kawanabe, Noritaka Kushida, Hiroshi Hasebe | 1987-11-17 |
| 4705011 | Air intake side secondary air supply system for an internal combustion engine with an improved operation for a large amount of the secondary air | Yoshitaka Hibino, Takeshi Fukuzawa, Hiromitsu Sato | 1987-11-10 |
| 4705012 | Air intake side secondary air supply system for an internal combustion engine with a duty ratio control operation | Tomohiko Kawanabe, Noritaka Kushida, Takanori Shiina, Minoru Muroya | 1987-11-10 |
| 4694803 | Air-fuel ratio control system for an internal combustion engine with an atmospheric pressure responsive correction operation | Tomohiko Kawanabe, Masahiro Ueda, Shinichi Kubota, Noritaka Kushida, Yukihiro Matsumoto | 1987-09-22 |
| 4693220 | Idling speed control system for internal combustion engines | Hiroshi Hasebe, Michio Sakaino, Yukio Miyashita | 1987-09-15 |
| 4690121 | Air intake side secondary air supply system for an internal combustion engine with a duty ratio control operation | Tomohiko Kawanabe, Takanori Shiina, Yukihiro Matsumoto, Minoru Muroya | 1987-09-01 |