Yasuyuki Sakakibara
68Patents
24h-index
68Co-inventors
91Inventor score
Filing activity: Jun 24, 1976 → Aug 3, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5448332A | Exposure method and apparatus | Physics | 419 | Expired |
| US4973896A | Automobile generator apparatus | Electricity | 146 | Expired |
| US4603671A | Fuel injector for an internal combustion engine | Mechanical Engineering; Lighting; Heating | 88 | Expired |
| US4553059A | Piezoelectric actuator and a piezoelectric pump injector incorporating the same | Mechanical Engineering; Lighting; Heating | 64 | Expired |
| US4621599A | Method and apparatus for operating direct injection type internal combustion engine | Emerging Cross-Sectional Technologies | 59 | Expired |
| US4767959A | Method and apparatus for driving capacitive-type load | Mechanical Engineering; Lighting; Heating | 50 | Expired |
| US4471256A | Piezoelectric actuator, and valve apparatus having actuator | Mechanical Engineering; Lighting; Heating | 49 | Expired |
| US4649886A | Fuel injection system for an internal combustion engine | Emerging Cross-Sectional Technologies | 49 | Expired |
| US4499878A | Fuel injection system for an internal combustion engine | Emerging Cross-Sectional Technologies | 48 | Expired |
| US4550744A | Piezoelectric hydraulic control valve | Emerging Cross-Sectional Technologies | 46 | Expired |
| US4732129A | Control apparatus for electroexpansive actuator enabling variation of stroke | Electricity | 41 | Expired |
| US4608958A | Load reactance element driving device | Emerging Cross-Sectional Technologies | 41 | Expired |
| US4784102A | Fuel injector and fuel injection system | Emerging Cross-Sectional Technologies | 37 | Expired |
| US4728074A | Piezoelectric flow control valve | Emerging Cross-Sectional Technologies | 36 | Expired |
| US4070562A | Acceleration/deceleration alarm system | Performing Operations; Transporting | 35 | Expired |
| US5343270A | Projection exposure apparatus | Physics | 31 | Expired |
| US5086266A | Automobile ac generator system | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4749897A | Driving device for piezoelectric element | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US4685290A | Engine control with function to eliminate minute particles in exhaust gas | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4480619A | Flow control device | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US5398660A | Fuel vapor purging system | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US4546749A | Fuel injection apparatus | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5363816A | Valve drive device | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US5483311A | Projection exposure apparatus | Physics | 25 | Expired |
| US4667638A | Fuel injection apparatus for internal combustion engine | Mechanical Engineering; Lighting; Heating | 24 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.