Yutaka Otobe
55Patents
16h-index
37Co-inventors
84Inventor score
Filing activity: Oct 6, 1980 → Dec 20, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4697421A | Supercharging pressure control system for an internal combustion engine with a tubocharger and method of operation | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4636957A | Method for controlling operating state of an internal combustion engine with an overshoot preventing function | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4688533A | Operation control system for an internal combustion engine with a throttle valve finely adjustable in valve opening at low load operation of the engine | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US4454854A | Exhaust gas recirculation control method for internal combustion engines for vehicles | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4583176A | Method for detecting abnormality in the functioning of an electronic control system | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US4596164A | Air-fuel ratio control method for internal combustion engines for vehicles | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US4665882A | Method of controlling an exhaust gas recirculating valve in an internal combustion engine | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4638658A | Method of detecting abnormality in a system for detecting exhaust gas ingredient concentration of an internal combustion engine | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US4581924A | Method of detecting opening of a throttle valve in a fully closed position in an internal combustion engine | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US4633093A | Method of feedback-controlling idling speed of internal combustion engine | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US4515009A | Method for detecting opening of a throttle valve in a fully closed position in an internal combustion engine | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4649878A | Method of feedback-controlling idling speed of internal combustion engine | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4618954A | Method of detecting abnormality in input and output units | Physics | 18 | Expired |
| US4700679A | Intake air quantity control method for internal combustion engines | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US6412460B1 | Valve operating system in internal combustion engine | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US4751909A | Fuel supply control method for internal combustion engines at operation in a low speed region | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US4409948A | Exhaust gas recirculation control system having a function of automatically correcting detected zero opening value of exhaust gas recirculation valve | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4491115A | Method for controlling fuel supply to an internal combustion engine at deceleration | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5979379A | Valve operating system in internal combustion engine | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4434769A | Deceleration fuel cut device for internal combustion engines | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4570592A | Method of feedback-controlling idling speed of internal combustion engine | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4509489A | Fuel supply control method for an internal combustion engine, adapted to improve operational stability, etc., of the engine during operation in particular operating conditions | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US4526153A | Air-fuel ratio control method for an internal combustion engine for vehicles in low load operating regions | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US4542729A | Air/fuel ratio control method having fail-safe function for abnormalities in oxygen concentration detecting means for internal combustion engines | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US4531495A | Fuel supply control method having fail-safe function for abnormalities in engine temperature detecting means at the start of the engine | Emerging Cross-Sectional Technologies | 11 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.