Yasuo Sagisaka
22Patents
13h-index
21Co-inventors
81Inventor score
Filing activity: Mar 19, 1980 → May 13, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4800859A | Fuel pump control apparatus | Mechanical Engineering; Lighting; Heating | 51 | Expired |
| US5672817A | Self-diagnostic apparatus of air-fuel ratio control system of internal combustion engine | Mechanical Engineering; Lighting; Heating | 46 | Expired |
| US5709198A | Oxygen concentration detecting apparatus | Mechanical Engineering; Lighting; Heating | 38 | Expired |
| US4319451A | Method for preventing overheating of an exhaust purifying device | Mechanical Engineering; Lighting; Heating | 34 | Expired |
| US4348728A | Air-fuel ratio controlling method and apparatus therefor | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US4345561A | Air-fuel ratio control method and its apparatus | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US5964208A | Abnormality diagnosing system for air/fuel ratio feedback control system | Emerging Cross-Sectional Technologies | 24 | Expired |
| US6032659A | Abnormality diagnosing system for air/fuel ratio feedback control system | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5390641A | Fuel injection system for internal combustion engine | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6314790A | Oxygen concentration detecting apparatus | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US7801666B2 | Air-fuel ratio detection apparatus of internal combustion engine | Emerging Cross-Sectional Technologies | 17 | Active |
| US7677227B2 | Apparatus and method of abnormality diagnosis for supercharging pressure control system | Emerging Cross-Sectional Technologies | 15 | Active |
| US5758632A | Diagnostic apparatus for air-fuel ratio sensor | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US6009866A | Oxygen concentration detecting apparatus | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4286560A | Method and apparatus for controlling an ignition timing | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5497752A | Device for controlling fuel injection of an internal combustion engine | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4463740A | Device for controlling atomization of fuel in internal combustion engine | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US6644249B2 | Cooling mechanism for engine electronic control module | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US5701866A | Malfunction diagnosis device for engine speed controller | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5402762A | Combustion engine and combustion engine control method | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US8078380B2 | Control device for vehicle automatic running | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US7380448B2 | Malfunction detection apparatus for pressure sensor | Emerging Cross-Sectional Technologies | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.