Issued Patents All Time
Showing 26–50 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4596164 | Air-fuel ratio control method for internal combustion engines for vehicles | Shumpei Hasegawa, Osamu Gotoh | 1986-06-24 |
| 4583176 | Method for detecting abnormality in the functioning of an electronic control system | Akihiro Yamato | 1986-04-15 |
| 4581924 | Method of detecting opening of a throttle valve in a fully closed position in an internal combustion engine | Makoto Hashiguchi | 1986-04-15 |
| 4576134 | Fuel supply control method for internal combustion engines capable of improving accelerability of the engine from an idling region thereof | Akihiro Yamato | 1986-03-18 |
| 4572129 | Air-fuel ratio feedback control method for internal combustion engines | — | 1986-02-25 |
| 4570592 | Method of feedback-controlling idling speed of internal combustion engine | — | 1986-02-18 |
| 4542729 | Air/fuel ratio control method having fail-safe function for abnormalities in oxygen concentration detecting means for internal combustion engines | Akihiro Yamato | 1985-09-24 |
| 4542728 | Method for controlling fuel supply to internal combustion engines having catalytic means for purifying exhaust gases, at operation in a high speed region | Noriyuki Kishi | 1985-09-24 |
| 4531495 | Fuel supply control method having fail-safe function for abnormalities in engine temperature detecting means at the start of the engine | Akihiro Yamato | 1985-07-30 |
| 4528968 | Duty ratio control method for on-off type solenoid valves | — | 1985-07-16 |
| 4526153 | Air-fuel ratio control method for an internal combustion engine for vehicles in low load operating regions | Shumpei Hasegawa, Osamu Gotoh | 1985-07-02 |
| 4515009 | Method for detecting opening of a throttle valve in a fully closed position in an internal combustion engine | Shumpei Hasegawa | 1985-05-07 |
| 4510911 | Method for controlling fuel supply to an internal combustion engine after termination of fuel cut | — | 1985-04-16 |
| 4509489 | Fuel supply control method for an internal combustion engine, adapted to improve operational stability, etc., of the engine during operation in particular operating conditions | Shumpei Hasegawa, Noriyuki Kishi, Takashi Koumura | 1985-04-09 |
| 4508087 | Method for controlling fuel supply to an internal combustion engine after termination of fuel cut | Akimasa Yasuoka | 1985-04-02 |
| 4503829 | Fuel supply control method for internal combustion engines under high load conditions | Shumpei Hasegawa | 1985-03-12 |
| 4502448 | Method for controlling control systems for internal combustion engines immediately after termination of fuel cut | — | 1985-03-05 |
| 4491115 | Method for controlling fuel supply to an internal combustion engine at deceleration | Akihiro Yamato | 1985-01-01 |
| 4483299 | Method for detecting abnormality in sensor means for detecting a parameter relating to intake air quantity of an internal combustion engine | Noriyuki Kishi | 1984-11-20 |
| 4471739 | Fuel injection control method for a multi-cylinder internal combustion engine, having a fail safe function for abnormality in cylinder-discriminating means | Akihiro Yamato | 1984-09-18 |
| 4454854 | Exhaust gas recirculation control method for internal combustion engines for vehicles | Osamu Gotoh | 1984-06-19 |
| 4454855 | Fuel supply control method and system for internal combustion engines equipped with exhaust gas recirculation control systems | Noriyuki Kishi | 1984-06-19 |
| 4434769 | Deceleration fuel cut device for internal combustion engines | Akihiro Yamato, Shigeo Umesaki | 1984-03-06 |
| 4429676 | Exhaust gas recirculation control system for vehicle engines | Osamu Gotoh, Michio Kawamoto, Akira Fujimura | 1984-02-07 |
| 4409948 | Exhaust gas recirculation control system having a function of automatically correcting detected zero opening value of exhaust gas recirculation valve | Shumpei Hasegawa, Akihiro Yamato | 1983-10-18 |