Yuki Nakajima
68Patents
16h-index
78Co-inventors
87Inventor score
Filing activity: May 28, 1991 → Apr 24, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6275759A | Automatic engine stop and restart system for vehicle | Emerging Cross-Sectional Technologies | 71 | Expired |
| US6090007A | Hybrid vehicle drive force control device and control method | Emerging Cross-Sectional Technologies | 54 | Expired |
| US5765533A | Engine air-fuel ratio controller | Mechanical Engineering; Lighting; Heating | 50 | Expired |
| US6328671A | Drive force control device | Emerging Cross-Sectional Technologies | 45 | Expired |
| US5129381A | Fuel injection system for internal combustion engine | Mechanical Engineering; Lighting; Heating | 31 | Expired |
| US5640847A | Catalyst deterioration diagnosis system for internal combustion engine | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5600948A | Engine air-fuel ratio controller | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5992372A | Transient control between two spark-ignited combustion states in engine | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5119628A | Catalyst degradation diagnosing apparatus for air fuel ratio control system | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6713981B2 | Pole position detector for motor | Electricity | 19 | Expired |
| US7273119B2 | Method for starting engine of vehicle with hybrid transmission and apparatus for carrying out the method | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5341641A | Dual sensor type air fuel ratio control system for internal combustion engine | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5937822A | Control system for internal combustion engine | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6291902A | Engine start control system | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7775060B2 | Drive unit for electric vehicle | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6006717A | Direct-injection spark-ignition type engine control apparatus | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US5970950A | Control method and control apparatus of direct injection gasoline engine | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6073606A | Apparatus for controlling fuel injection for a direct-injection gasoline engine and a method thereof | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6625525B2 | Vehicle drive system and controlling method thereof | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6251046A | Automatic engine-stop control apparatus for internal combustion engine | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5979397A | Control apparatus for direct injection spark ignition type internal combustion engine | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6062190A | Ignition timing control apparatus and method for internal combustion engine | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5255662A | Engine air-fuel ratio controller | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6401016B1 | Vehicle control device | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7207919B2 | Method and apparatus for engaging engine clutch for hybrid transmission | Emerging Cross-Sectional Technologies | 12 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.