Won Seok Han
32Patents
4h-index
50Co-inventors
66Inventor score
Filing activity: Jul 31, 2002 → Mar 30, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8942521B2 | Planar waveguide element | Physics | 15 | Active |
| US7369595B2 | Distributed Bragg reflector (DBR) structure in vertical cavity surface emitting laser (VCSEL) diode, method of manufacturing the same, and VCSEL diode | Electricity | 8 | Active |
| US9353437B2 | Diazadiene-based metal compound, method for preparing same and method for forming a thin film using same | Chemistry; Metallurgy | 5 | Active |
| US7230276B2 | Semiconductor optical device having current-confined structure | Electricity | 4 | Expired |
| US6989312B2 | Method for fabricating semiconductor optical device | Electricity | 3 | Expired |
| US6727109B2 | Method of fabricating long wavelength vertical-cavity surface-emitting lasers | Electricity | 3 | Expired |
| US9255324B2 | Aluminum precursor composition | Chemistry; Metallurgy | 2 | Active |
| US10291327B1 | Optical signal generating apparatus and operating method thereof | Electricity | 2 | Active |
| US11018475B2 | High-output power quarter-wavelength shifted distributed feedback laser diode | Electricity | 1 | Active |
| US10131680B1 | Group 4 metal element-containing alkoxy compound, preparing method thereof, precursor composition including the same for film deposition, and method of depositing film using the same | Chemistry; Metallurgy | 1 | Active |
| US11912728B2 | Aluminum compounds and methods of forming aluminum- containing film using the same | Chemistry; Metallurgy | 1 | Active |
| US11401231B2 | Stilbene derivative and method for preparing same | Chemistry; Metallurgy | 1 | Active |
| US9957614B2 | Ruthenium compound, preparation method therefor, precursor composition for film deposition containing same, and method for depositing film by using same | Chemistry; Metallurgy | 1 | Active |
| US10005795B1 | Group 4 metal element-containing compound, method of preparing the same, precursor composition including the same for depositing film, and method of depositing film using the same | Chemistry; Metallurgy | 1 | Active |
| US11500150B2 | Waveguide photodetector | Physics | 0 | Active |
| US10649139B2 | Optical waveguide structure | Physics | 0 | Active |
| US10290493B2 | Method for manufacturing silicon-containing thin film | Electricity | 0 | Active |
| US11485749B2 | Group 4 metal element-containing compounds, method of preparing the same, precursor compositions including the same for forming a film, and method of forming a film using the same | Chemistry; Metallurgy | 0 | Active |
| US10763001B2 | Liquid precursor compositions, preparation methods thereof, and methods for forming layer using the composition | Electricity | 0 | Active |
| US12319705B2 | Ruthenium precursor composition, preparation method therefor, and formation method for ruthenium-containing film using same | Chemistry; Metallurgy | 0 | Active |
| US8987037B2 | Methods of manufacturing a solar cell | Emerging Cross-Sectional Technologies | 0 | Active |
| US7776752B2 | Method of etching for multi-layered structure of semiconductors in group III-V and method for manufacturing vertical cavity surface emitting laser device | Electricity | 0 | Active |
| US8637765B2 | Single junction type cigs thin film solar cell and method for manufacturing the thin film solar cell | Emerging Cross-Sectional Technologies | 0 | Active |
| US10014089B2 | Liquid precursor compositions, preparation methods thereof, and methods for forming layer using the composition | Electricity | 0 | Active |
| US10658538B2 | Optical detection device | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.