Seung-Gak Yang
41Patents
7h-index
33Co-inventors
69Inventor score
Filing activity: Oct 13, 1992 → Dec 9, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7737627B2 | Fluorene-based compound and organic electroluminescent display device using the same | Emerging Cross-Sectional Technologies | 58 | Active |
| US7431997B2 | Phenylcarbazole compounds and organic electroluminescence devices using the same | Emerging Cross-Sectional Technologies | 55 | Expired |
| US8021764B2 | Phenylcarbazole-based compound and organic electroluminescent device employing the same | Emerging Cross-Sectional Technologies | 44 | Active |
| US7585573B2 | Ir compound and organic electroluminescent device using the same | Emerging Cross-Sectional Technologies | 34 | Active |
| US8021765B2 | Phenylcarbazole-based compound and organic electroluminescent device employing the same | Emerging Cross-Sectional Technologies | 29 | Active |
| US6824712B1 | Selectively light-absorptive material, coating composition containing the same, and filter manufactured using the coating composition for color displays | Chemistry; Metallurgy | 14 | Expired |
| US7582366B2 | Difluoropyridine-based compound and organic electroluminescent device using the same | Emerging Cross-Sectional Technologies | 7 | Active |
| US5324515A | Cosmetic material obtained from a lactic acid fermentation broth | Emerging Cross-Sectional Technologies | 7 | Expired |
| US8999525B2 | Condensed-cyclic compound, organic light-emitting device comprising the same, and flat panel display apparatus including the device | Emerging Cross-Sectional Technologies | 7 | Active |
| US7868321B2 | Organic light emitting device and flat display including the same | Electricity | 6 | Active |
| US7622584B2 | Imidazopyridine-based compound and organic light emitting diode including organic layer comprising the imidazopyridine-based compound | Electricity | 6 | Active |
| US8420230B2 | Organic light emitting diode employing luminescent efficiency improvement layer | Electricity | 6 | Active |
| US7351481B2 | Imidazole ring-containing compound and organic electroluminescence display device | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7732598B2 | Triazine-based compound, method of making the same, and an organic light-emitting device including the same | Electricity | 4 | Active |
| US8277956B2 | Organic light emitting diode | Electricity | 3 | Active |
| US9012042B2 | Condensed-cyclic compound, organic light-emitting device comprising the same, and flat panel display apparatus | Emerging Cross-Sectional Technologies | 3 | Active |
| US8685542B2 | Organic light-emitting device | Electricity | 2 | Active |
| US9000420B2 | Condensed-cyclic compound and organic light emitting diode including organic layer containing the condensed-cyclic compound | Electricity | 2 | Active |
| US8808880B2 | Condensed-cyclic compound, organic light-emitting device comprising the same, and flat panel display apparatus | Electricity | 2 | Active |
| US8343638B2 | Organic light emitting diode including light-efficiency-improvement layer | Electricity | 2 | Active |
| US8865322B2 | Dendrimer and organic light-emitting device using the same | Emerging Cross-Sectional Technologies | 2 | Active |
| US9045419B2 | Condensed-cyclic compound and organic light emitting diode having organic layer including the same | Emerging Cross-Sectional Technologies | 2 | Active |
| US8409727B2 | Color filter array and organic light-emitting display device using the same | Electricity | 1 | Active |
| US8334060B2 | Triarylamine-based compound, method of preparing the same, and organic light emitting device using the triarylamine-based compound | Electricity | 1 | Active |
| US8691930B2 | Polymer compound and organic light-emitting device including the same | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.