Hiroki Ohrui
42Patents
3h-index
40Co-inventors
59Inventor score
Filing activity: Jul 18, 2007 → Jan 23, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7875368B2 | Heterocyclic compound and organic light-emitting device | Electricity | 6 | Active |
| US8790795B2 | 6,12-dinaphthylchrysene derivative and organic light-emitting device using the derivative | Electricity | 3 | Active |
| US10032987B2 | Organic light emitting element | Electricity | 3 | Active |
| US7919197B2 | Condensed ring aromatic compound and organic light-emitting device having the same | Emerging Cross-Sectional Technologies | 3 | Active |
| US8628863B2 | Indenopyrene compound and organic light-emitting device using the compound | Electricity | 3 | Active |
| US7977869B2 | Organic luminescent device and benzo[k]fluoranthene compound | Electricity | 2 | Active |
| US8431244B2 | Indenochrysene derivative and organic light-emitting device using same | Chemistry; Metallurgy | 2 | Active |
| US8110685B2 | Azafluorene derivative and organic light-emitting device using the derivative | Electricity | 2 | Active |
| US8072137B2 | Fused heterocyclic compound and organic light emitting device | Electricity | 2 | Active |
| US8304096B2 | Fused polycyclic aromatic compound and organic light emitting device using the compound | Electricity | 2 | Active |
| US10868260B2 | Organic compound and photoelectric conversion element | Emerging Cross-Sectional Technologies | 1 | Active |
| US11591279B2 | Composition, organic light-emitting device, display device, photoelectric conversion apparatus, electronic apparatus, and moving object including the composition | Emerging Cross-Sectional Technologies | 1 | Active |
| US8129899B1 | Azafluorene derivative and organic light-emitting device using the derivative | Electricity | 1 | Active |
| US7919198B2 | Condensed ring aromatic compound for organic light-emitting device and organic light-emitting device having the same | Emerging Cross-Sectional Technologies | 1 | Active |
| US10854821B2 | Organic light emitting device | Electricity | 1 | Active |
| US10947212B2 | Photoelectric conversion element, two-dimensional sensor, image sensor, and image pickup device | Emerging Cross-Sectional Technologies | 1 | Active |
| US9705089B2 | Organic light emitting element | Emerging Cross-Sectional Technologies | 1 | Active |
| US8034944B2 | Benzofluoranthene compound and organic light-emitting device using the compound | Emerging Cross-Sectional Technologies | 1 | Active |
| US9472766B2 | Fused polycyclic compound and organic light emitting element including the same | Electricity | 1 | Active |
| US9818957B2 | Organic light emitting element | Emerging Cross-Sectional Technologies | 1 | Active |
| US8952873B2 | Fused polycyclic compound and organic light-emitting device using the compound | Electricity | 0 | Active |
| US8173275B2 | Azaindenochrysene derivative and organic light-emitting device | Emerging Cross-Sectional Technologies | 0 | Active |
| US11557727B2 | Organic photoelectric conversion element, image pickup element, and image pickup apparatus | Emerging Cross-Sectional Technologies | 0 | Active |
| US12172941B2 | Organic compound and organic light-emitting device | Electricity | 0 | Active |
| US10468614B2 | Photoelectric conversion element, image pick-up element, and image pick-up apparatus | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.