Inventor · Chiba, JP

Tasuku HAKETA

42Patents
2h-index
27Co-inventors
53Inventor score

Filing activity: Mar 28, 2014 → Jun 6, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US10435350B2 Organic electroluminecence device Electricity 124 Active
US11069861B2 Mixture, organic electroluminescence device and electronic equipment Electricity 2 Active
US9963429B2 Carbazole derivative, material for organic electroluminescent element which comprises same, and organic electroluminescent element and electronic device each manufactured using same Electricity 2 Active
US10424740B2 Compound, material for organic electroluminescence devices, organic electroluminescence device, and electronic device Electricity 2 Active
US9902687B2 Compound Electricity 1 Active
US9991445B2 Heterocyclic compound, material for organic electroluminescence device including the same, and organic electroluminescence device and electronic equipment employing the same Electricity 1 Active
US11548877B2 Compound, material for organic electroluminescence device, organic electroluminescence device, and electronic device Electricity 1 Active
US11489128B1 Organic electroluminescent element emitting light at high luminous effiency and electronic device Electricity 1 Active
US10170707B2 Compound, material for organic electroluminescence element, organic electroluminescence element, and electronic device Electricity 1 Active
US12369490B2 Organic electroluminescent element, organic electroluminescent display device, and electronic device Electricity 0 Active
US11730054B2 Compound having dibenzofuran and naphthalene structures, and organic electroluminescent element using same Electricity 0 Active
US11479544B2 Compound, material for organic electroluminescence element, organic electroluminescence element, and electronic device Electricity 0 Active
US12338234B2 Compound, material for organic electroluminescence device, organic electroluminescence device, and electronic device Electricity 0 Active
US11744149B2 Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device Electricity 0 Active
US11691983B2 Specifically substituted benzofuro- and benzothienoquinolines for organic light emitting diodes Emerging Cross-Sectional Technologies 0 Active
US10297757B2 Compound, material for organic electroluminescent elements, organic electroluminescent element and electronic device Electricity 0 Active
US10622569B2 Compound, organic electroluminescent element, and electronic device Electricity 0 Active
US12048242B2 Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device Electricity 0 Active
US10205099B2 Condensed fluoranthene compound, organic electroluminescence element material including same, organic electroluminescence element using same, and electronic device Electricity 0 Active
US10141522B2 Compound, material for organic electroluminescence element, organic electroluminescence element, and electronic device General 0 Revoked
US11053437B2 Compound, material for organic electroluminescent devices, organic electroluminescent device and electronic device Electricity 0 Active
US10629821B2 Compound, material for organic electroluminescent elements using same, and organic electroluminescent element and electronic device each using same Electricity 0 Active
US10784446B2 Compound, organic electroluminescence element material, organic electroluminescence element and electronic device Electricity 0 Active
US9887367B2 Heterocyclic compound, material for organic electroluminescent elements using same, organic electroluminescent element using same, and electronic device Electricity 0 Active
US9991455B2 Amine compound and organic electroluminescent element Electricity 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.