Itaru Takaya
25Patents
6h-index
33Co-inventors
69Inventor score
Filing activity: Apr 24, 1998 → Dec 29, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6994941B2 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Physics | 45 | Expired |
| US6991881B2 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Chemistry; Metallurgy | 44 | Expired |
| US7045261B2 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Physics | 33 | Expired |
| US6296978A | Electrophotographic photosensitive member, a process-cartridge inclusive thereof, and an image forming apparatus | Physics | 14 | Expired |
| US6623899B2 | Electrophotographic photosensitive member, process for production thereof, process cartridge and electrophotographic apparatus | Physics | 11 | Expired |
| US6551752B2 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Physics | 9 | Expired |
| US8183564B2 | Multicolor display apparatus | Electricity | 5 | Active |
| US8877532B2 | Method of manufacturing organic electroluminescence display device | Electricity | 4 | Active |
| US11997858B2 | Organic EL device as well as display apparatus, image pickup apparatus, communication apparatus, lighting apparatus, luminaire, and moving body each including the same | Electricity | 4 | Active |
| US9155160B2 | Method of manufacturing organic electroluminescence display device and electronic equipment including organic electroluminescence display device manufactured by the manufacturing method | Electricity | 2 | Active |
| US8530254B2 | Method of manufacturing organic electroluminescence device | Electricity | 1 | Active |
| US10937979B2 | Organic el element, and display device, imaging apparatus, lighting device, and movable body including the same | Electricity | 1 | Active |
| US7009080B2 | Process for producing halogenated aromatic amine compound | Chemistry; Metallurgy | 1 | Expired |
| US8927974B2 | Display apparatus and image pickup apparatus | Electricity | 1 | Active |
| US10985323B2 | Light-emitting device including a plurality of organic electroluminescent elements | Electricity | 1 | Active |
| US9991451B2 | Organic light-emitting device, display apparatus, image display apparatus, lighting apparatus, image formation apparatus, and exposure apparatus | Electricity | 0 | Active |
| US11950437B2 | Organic light emitting device, and display apparatus, photoelectric conversion apparatus, electronic apparatus, illumination apparatus, and moving object including the same | Electricity | 0 | Active |
| US11917844B2 | Organic EL element, and display apparatus, illumination apparatus, and moving object including the same | Electricity | 0 | Active |
| US8063558B2 | Multi-color display apparatus | Electricity | 0 | Active |
| US11980044B2 | Organic light emitting device, and display apparatus, photoelectric conversion apparatus, electronic apparatus, illumination apparatus, and moving object including the same | Electricity | 0 | Active |
| US11411193B2 | Organic light emitting element, comprising at least first and second light emitting layers with satisfying lowest unoccupied molecular orbital (LUMO) and highest occupied molecular orbital (HOMO) relations | Electricity | 0 | Active |
| US10396305B2 | Organic EL device, and display apparatus and lighting apparatus using the same | Electricity | 0 | Active |
| US10790465B2 | White organic EL element | Emerging Cross-Sectional Technologies | 0 | Active |
| US11251375B2 | While organic EL element | Electricity | 0 | Active |
| US11672171B2 | Light-emitting device including a plurality of organic electroluminescent elements | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.