Hee Ra Lee
27Patents
3h-index
73Co-inventors
62Inventor score
Filing activity: Dec 27, 2004 → Jun 11, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7604565B2 | Double clutch transmission for a hybrid electric vehicle and method for operating the same | Emerging Cross-Sectional Technologies | 30 | Active |
| US7249537B2 | Double clutch transmission for a hybrid electric vehicle and method for operating the same | Emerging Cross-Sectional Technologies | 28 | Expired |
| US9701189B2 | Power transmission system of hybrid electric vehicle | Emerging Cross-Sectional Technologies | 4 | Active |
| US9376007B2 | Power transmission system of hybrid electric vehicle | Emerging Cross-Sectional Technologies | 2 | Active |
| US7766792B2 | Power train structure for hybrid vehicles | Emerging Cross-Sectional Technologies | 2 | Active |
| US10476331B2 | Rotor structure of WRSM motor | Emerging Cross-Sectional Technologies | 1 | Active |
| US10615668B2 | Coil multi-cooling path type drive motor and eco-friendly vehicle having the same | Emerging Cross-Sectional Technologies | 1 | Active |
| US9168824B2 | Power transmission system of hybrid electric vehicle | Emerging Cross-Sectional Technologies | 1 | Active |
| US8821346B2 | Clutch actuator unit | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10393185B2 | Bearing for driving motor | Emerging Cross-Sectional Technologies | 1 | Active |
| US10666096B2 | Direct cooling driving motor for vehicle | Emerging Cross-Sectional Technologies | 1 | Active |
| US11606006B2 | System for overcooling drive motor and method for controlling the same | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9822819B2 | Bearing unit for drive motor | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10920868B2 | Keyless rotation transfer unit and hybrid starter and generator | Emerging Cross-Sectional Technologies | 0 | Active |
| US9234550B2 | Actuator for clutch | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10840764B2 | Motor cooling structure | Electricity | 0 | Active |
| US10833546B2 | Interior permanent magnet motor | Electricity | 0 | Active |
| US11320003B2 | Cooling structure for hybrid powertrain of vehicle | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9194442B2 | Dual clutch device for vehicle | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9168823B2 | Transmission system of hybrid electric vehicle | Emerging Cross-Sectional Technologies | 0 | Active |
| US11581765B2 | Inferior permanent magnet electric motor and rotor included therein | Electricity | 0 | Active |
| US9181990B2 | Clutch actuator for vehicle | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10411541B2 | Driving motor for environmentally friendly vehicles | Emerging Cross-Sectional Technologies | 0 | Active |
| US10457268B2 | System and method of controlling drive motor for vehicle | Emerging Cross-Sectional Technologies | 0 | Active |
| US11710997B2 | Motor housing with an integrated cooling passage | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.