Hidetsugu Ikeda
67Patents
13h-index
54Co-inventors
87Inventor score
Filing activity: Jul 22, 1985 → Dec 12, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7053255B2 | Substituted diphenylanthracene compounds for organic electroluminescence devices | Emerging Cross-Sectional Technologies | 78 | Expired |
| US6743948B1 | Organic electroluminescent device | Emerging Cross-Sectional Technologies | 59 | Expired |
| US6534199B1 | Organic electroluminescence device and organic light emitting medium | Emerging Cross-Sectional Technologies | 50 | Expired |
| US6951693B2 | Organic electroluminescence device | Emerging Cross-Sectional Technologies | 42 | Expired |
| US7839074B2 | Organic electroluminescence device and anthracene derivative | Electricity | 33 | Expired |
| US7790892B2 | Aromatic compound and organic electroluminescent element containing the same | Emerging Cross-Sectional Technologies | 25 | Expired |
| US6815090B1 | Organic electroluminescence device | Emerging Cross-Sectional Technologies | 19 | Expired |
| US7846560B2 | Material for organic electroluminescence device and electroluminescence device employing the same | Emerging Cross-Sectional Technologies | 18 | Active |
| US7361796B2 | Orangic electroluminescence device | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6489046B1 | Organic electroluminescence device | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7651791B2 | Material for organic electroluminescence device and electroluminescence device employing the same | Emerging Cross-Sectional Technologies | 15 | Active |
| US7867629B2 | Nitrogenous heterocyclic derivative and organic electroluminescent element employing the same | Emerging Cross-Sectional Technologies | 14 | Expired |
| US10249832B1 | Organic electroluminescence device and novel compound | Electricity | 13 | Active |
| US6818327B2 | Organic electroluminescence device | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6221517A | Fluorescence-reddening membrane and red-emitting device | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5452270A | Melody alarm timepiece | Physics | 12 | Expired |
| USD303228S | Clock movement | General | 12 | Expired |
| US7429425B2 | Oligoarylene derivatives and organic electroluminescent devices made by using the same | Emerging Cross-Sectional Technologies | 11 | Expired |
| US10593889B1 | Compound and organic electroluminescence device | Electricity | 11 | Active |
| US6797848B2 | Anthracene derivative and organic electroluminescence device using the derivative | Electricity | 9 | Expired |
| US9583716B2 | Organic electroluminescence device and anthracene derivative | Emerging Cross-Sectional Technologies | 9 | Active |
| US4995022A | Power supply device for hand with luminescence element | Physics | 8 | Expired |
| US10680181B2 | Organic electroluminescence device and novel compound | Electricity | 8 | Active |
| US6946789B2 | EL sheet with bent leg connectors | Electricity | 7 | Expired |
| US7709102B2 | Organic electroluminescence device | Emerging Cross-Sectional Technologies | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.