Hee-joong Lee
33Patents
8h-index
17Co-inventors
72Inventor score
Filing activity: Nov 3, 1986 → Dec 13, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7097308B2 | Highly efficient projection system | Electricity | 35 | Expired |
| US7411742B1 | Focusing lens for LED | Electricity | 28 | Active |
| US6824270B2 | Single-panel color image display apparatus and scrolling method | Electricity | 19 | Expired |
| US7327410B2 | High resolution 3-D image display with liquid crystal shutter array | Electricity | 15 | Expired |
| US6815866B2 | Cantilever having step-up structure and method for manufacturing the same | Performing Operations; Transporting | 14 | Expired |
| US6971748B2 | High-resolution display including pixel moving optical system | Physics | 12 | Expired |
| US7439938B2 | Multi-display apparatus having an optical path changing device | Physics | 12 | Expired |
| US7119964B2 | Color illuminating system and projection type image display apparatus using the same | Electricity | 10 | Expired |
| US6921171B2 | Color scrolling projection system | Electricity | 8 | Expired |
| US6733141B2 | Apparatus for fine-adjusting orientation of optical device | Physics | 7 | Expired |
| US4691087A | Preventing twist of a microwave temperature probe line | Electricity | 5 | Expired |
| US6843567B2 | Highly efficient scrolling projection system and method | Electricity | 5 | Expired |
| US7048381B2 | Cylindrical lens array for scrolling colors, projection system using same, and scrolling method | Physics | 3 | Expired |
| US6913360B2 | Single-panel color image display apparatus | Physics | 3 | Expired |
| US7241027B2 | Illumination system providing light of Gaussian distribution, projection system, and method of forming color image | Electricity | 2 | Expired |
| US7104651B2 | Color scrollable projection system | Electricity | 2 | Expired |
| US7066602B2 | Projection type image display system capable of color scrolling | Electricity | 2 | Expired |
| US7140737B2 | Projection system using spatial filter | Physics | 2 | Expired |
| US7097309B2 | Lighting system and compact projection system | Electricity | 2 | Expired |
| US8284493B2 | Projection lens unit for pico-projector | Physics | 2 | Active |
| US7163293B2 | Projection system and method | Electricity | 2 | Expired |
| US7150532B2 | Projection system with scrolling unit | Electricity | 2 | Expired |
| US7367677B2 | High efficiency lighting system, scrolling unit and projection system employing the same | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US7226169B2 | Projection system using spatial filter | Physics | 1 | Expired |
| US7131734B2 | Projection system using spatial filter | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.