Issued Patents All Time
Showing 51–75 of 87 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4483308 | Air intake side secondary air supply system for an internal combustion engine equipped with exhaust gas recirculation control system | — | 1984-11-20 |
| 4481929 | Method and device for atmospheric pressure-dependent correction of air/fuel ratio for internal combustion engines | — | 1984-11-13 |
| 4479471 | Method for controlling engine idling rpm immediately after the start of the engine | Noriyuki Kishi, Takashi Koumura | 1984-10-30 |
| 4476830 | Fuel injection control method for a multi-cylinder internal combustion engine, having a fail safe function for abnormality in cylinder-discriminating means | Shigeo Umesaki | 1984-10-16 |
| 4475505 | System for controlling idling rpm by synchronous control of supplementary air | Takashi Koumura, Toshiyuki Mieno, Kiyoshi Oikawa | 1984-10-09 |
| 4469065 | Fuel pump control system for internal combustion engines, having a fail safe function for abnormality in fuel injection valves | Shigeo Umesaki | 1984-09-04 |
| 4467761 | Engine RPM control method for internal combustion engines | — | 1984-08-28 |
| 4466411 | Air/fuel ratio feedback control method for internal combustion engines | Toyohei Nakajima | 1984-08-21 |
| 4465051 | Device for intake air temperature-dependent correction of air/fuel ratio for internal combustion engines | — | 1984-08-14 |
| 4461263 | Electronic fuel injection control system for internal combustion engines having exhaust gas recirculation control devices | — | 1984-07-24 |
| 4459961 | Fuel injection control method | Hiroyuki Nishimura, Masahiro Watanabe, Takehiko Hosokawa | 1984-07-17 |
| 4454853 | Electronic fuel injection control system for internal combustion engines having exhaust gas recirculation devices | — | 1984-06-19 |
| 4454852 | Electronic fuel injection control system for internal combustion engines having exhaust gas recirculation control devices | — | 1984-06-19 |
| 4450812 | Electric control system for internal combustion engines, having fail safe function for engine condition detecting sensors | Kazuo Otsuka, Shin Narasaka | 1984-05-29 |
| 4448177 | Exhaust gas recirculation control system having variable valve lift correcting speed for exhaust gas recirculation valve | Takashi Koumura, Toyohei Nakajima, Junichi Miyake, Junichi Kimura | 1984-05-15 |
| 4445483 | Fuel supply control system for internal combustion engines, having a function of leaning mixture in an engine low load region | — | 1984-05-01 |
| 4445482 | Air/fuel ratio feedback control system adapted to obtain stable engine operation under particular engine operating conditions | Noriyuki Kishi | 1984-05-01 |
| 4438744 | Idling rpm feedback control method for internal combustion engines | — | 1984-03-27 |
| 4434770 | Fuel injection timing signal and crank angle signal generating apparatus | Hiroyuki Nishimura, Masahiro Watanabe, Haruo Furuya | 1984-03-06 |
| 4434764 | Air/fuel ratio feedback control system for internal combustion engines, having atmospheric pressure-dependent fail safe function for O.sub.2 sensor | Shin Narasaka, Kazuo Otsuka | 1984-03-06 |
| 4418674 | Electronic fuel injection control system for multi-cylinder internal combustion engines | Akihiro Yamato | 1983-12-06 |
| 4414950 | Fail safe device for air/fuel ratio feedback control system | Kazuo Otsuka, Shin Narasaka | 1983-11-15 |
| 4409948 | Exhaust gas recirculation control system having a function of automatically correcting detected zero opening value of exhaust gas recirculation valve | Akihiro Yamato, Yutaka Otobe | 1983-10-18 |
| 4407243 | Air/fuel ratio control system having function of controlling supply of secondary air into intake pipe of internal combustion engine | Kazuo Otsuka, Shin Narasaka | 1983-10-04 |
| 4401080 | Air/fuel ratio control system for internal combustion engines, having air/fuel ratio control function at engine acceleration | Kazuo Otsuka, Shin Narasaka | 1983-08-30 |