Inventor · disambiguated record
Takayasu Sado
Also filed as: SADO TAKAYASU
32 granted patents·20 pending applications·255 citations·filing 2005–2024
97Inventor score
Top patents by PatentIndex Score
52 records- 0197US12089492B2Aromatic heterocyclic derivative, material for organic electroluminescent element, and organic electroluminescent elementIDEMITSU KOSAN CO·Filed 2022·Granted Sep 10, 2024·2 cites·6 claims
- 0296US9209406B2Aromatic heterocyclic derivative, material for organic electroluminescent element, and organic electroluminescent elementIDEMITSU KOSAN CO·Filed 2012·Granted Dec 8, 2015·25 cites·16 claims
- 0396US8803134B2Biscarbazole derivatives and organic electroluminescenceINOUE TETSUYA·Filed 2012·Granted Aug 12, 2014·16 cites·33 claims
- 0495US7366392B2Lighting device and display device using the sameSEIKO INSTR INC·Filed 2005·Granted Apr 29, 2008·63 cites·20 claims
- 0594US9893296B2Aromatic heterocyclic derivative, material for organic electroluminescent element, and organic electroluminescent elementIDEMITSU KOSAN CO·Filed 2015·Granted Feb 13, 2018·7 cites·30 claims
- 0693US10418563B2Aromatic heterocyclic derivative, material for organic electroluminescent element, and organic electroluminescent elementIDEMITSU KOSAN CO·Filed 2017·Granted Sep 17, 2019·4 cites·25 claims
- 0793US9847501B2Aromatic heterocyclic derivative, material for organic electroluminescent element, and organic electroluminescent elementIDEMITSU KOSAN CO·Filed 2012·Granted Dec 19, 2017·12 cites·23 claims
- 0893US9324950B2Organic electroluminescence deviceKAWAMURA YUICHIRO·Filed 2011·Granted Apr 26, 2016·14 cites·18 claims
- 0992US11374176B2Aromatic heterocyclic derivative, material for organic electroluminescent element, and organic electroluminescent elementIDEMITSU KOSAN CO·Filed 2019·Granted Jun 28, 2022·3 cites·8 claims
- 1092US10014477B2Aromatic amine derivative, and organic electroluminescent element using sameIDEMITSU KOSAN CO·Filed 2013·Granted Jul 3, 2018·8 cites·13 claims
- 1192US9196842B2Aromatic amine derivative and organic electroluminescent elementIDEMITSU KOSAN CO·Filed 2013·Granted Nov 24, 2015·9 cites·13 claims
- 1291US10199580B2Aromatic heterocyclic derivative, material for organic electroluminescent element, and organic electroluminescent elementIDEMITSU KOSAN CO·Filed 2018·Granted Feb 5, 2019·3 cites·30 claims
- 1391US9373802B2Biscarbazole derivatives and organic electroluminescence device employing the sameIDEMITSU KOSAN CO·Filed 2014·Granted Jun 21, 2016·7 cites·25 claims
- 1491US7484873B2Illumination device having elliptical body and display device using the sameSEIKO INSTR INC·Filed 2005·Granted Feb 3, 2009·26 cites·16 claims
- 1590US7264389B2Illuminating unit and display device using the unitSEIKO INSTR INC·Filed 2005·Granted Sep 4, 2007·14 cites·18 claims
- 1690US2025008837A1Aromatic heterocyclic derivative, material for organic electroluminescent element, and organic electroluminescent elementIDEMITSU KOSAN CO·Filed 2024·Application pending·0 cites
- 1788US9082986B2Organic electroluminescent elementKATO TOMOKI·Filed 2012·Granted Jul 14, 2015·7 cites·15 claims
- 1886US9871206B2Compound, organic electroluminescence device material, organic electroluminescence device and electronic deviceIDEMITSU KOSAN CO·Filed 2013·Granted Jan 16, 2018·4 cites·51 claims
- 1984US10510964B2Compound, organic electroluminescence device material, organic electroluminescence device and electronic deviceIDEMITSU KOSAN CO·Filed 2017·Granted Dec 17, 2019·2 cites·20 claims
- 2084US8883323B2Organic electroluminescence deviceKAWAMURA YUICHIRO·Filed 2011·Granted Nov 11, 2014·16 cites·14 claims
- 2179US9818958B2Biscarbazole derivatives and organic electroluminescence device employing the sameIDEMITSU KOSAN CO·Filed 2016·Granted Nov 14, 2017·2 cites·13 claims
- 2279US2022285620A1Aromatic amine derivative, and organic electroluminescent element using sameIDEMITSU KOSAN CO·Filed 2022·Application pending·0 cites
- 2376US8278819B2Organic electroluminescence device and displayHOSOKAWA CHISHIO·Filed 2008·Granted Oct 2, 2012·4 cites·18 claims
- 2473US11444246B2Aromatic amine derivative, and organic electroluminescent element using sameIDEMITSU KOSAN CO·Filed 2020·Granted Sep 13, 2022·0 cites·18 claims
- 2573US11362279B2Aromatic amine derivative, and organic electroluminescent element using sameIDEMITSU KOSAN CO·Filed 2020·Granted Jun 14, 2022·0 cites·11 claims
- 2673US9966539B2Organic electroluminescence deviceIDEMITSU KOSAN CO·Filed 2013·Granted May 8, 2018·1 cites·34 claims
- 2769US2023106293A1Organic electroluminescent element and electronic deviceIDEMITSU KOSAN CO·Filed 2022·Application pending·0 cites
- 2868US8778510B2Pyrromethene-boron complex compounds and organic electroluminescent elements using sameOKUDA FUMIO·Filed 2010·Granted Jul 15, 2014·2 cites·15 claims
- 2968US2018123043A1Aromatic amine derivative, and organic electroluminescent element using sameIDEMITSU KOSAN CO·Filed 2017·Application pending·0 cites
- 3067US10230057B2Biscarbazole derivatives and organic electroluminescence device employing the sameIDEMITSU KOSAN CO·Filed 2017·Granted Mar 12, 2019·0 cites·31 claims
- 3167US8586199B2Organic electroluminescence deviceSADO TAKAYASU·Filed 2008·Granted Nov 19, 2013·3 cites·4 claims
- 3265US10985325B2Aromatic amine derivative, and organic electroluminescent element using sameIDEMITSU KOSAN CO·Filed 2013·Granted Apr 20, 2021·1 cites·16 claims
- 3363US2014001456A1Aromatic heterocyclic derivative, material for organic eletroluminescent element, and organic electroluminescent elementIDEMITSU KOSAN CO·Filed 2013·Application pending·0 cites
- 3456US2016197289A1Organic electroluminescent element and electronic deviceIDEMITSU KOSAN CO·Filed 2013·Application pending·0 cites
- 3555US2016254459A1Organic electroluminescence deviceIDEMITSU KOSAN CO·Filed 2016·Application pending·0 cites
- 3653US2012305908A1Organic electroluminescence device and displayHOSOKAWA CHISHIO·Filed 2012·Application pending·0 cites
- 3752US11456432B2Top emission organic electroluminescent element, organic electroluminescent light emitting device, and electronic deviceIDEMITSU KOSAN CO·Filed 2018·Granted Sep 27, 2022·0 cites·18 claims
- 3851US2024292750A1Organic electroluminescent element and electronic deviceIDEMITSU KOSAN CO·Filed 2022·Application pending·0 cites
- 3951US2011226992A1Organic electroluminescent material compositionsIDEMITSU KOSAN CO·Filed 2009·Application pending·0 cites
- 4049US2008241588A1Organic electroluminescence device and displayIDEMITSU KOSAN CO·Filed 2008·Application pending·0 cites
- 4147US2009053488A1Organic electroluminescence device and method for producing organic electroluminescence deviceIDEMITSU KOSAN CO·Filed 2007·Application pending·0 cites
- 4247US2014084270A1Organic electroluminescence deviceIDEMITSU KOSAN CO·Filed 2013·Application pending·0 cites
- 4347US2015228899A1Organic electroluminescent elementIDEMITSU KOSAN CO·Filed 2013·Application pending·0 cites
- 4446US2014167003A1Organic electroluminescence deviceIDEMITSU KOSAN CO·Filed 2013·Application pending·0 cites
- 4546US2008007160A1Organic electroluminescent device using fluoranthene derivative and indenoperylene derivativeIDEMITSU KOSAN CO·Filed 2007·Application pending·0 cites
- 4646US2007222373A1Naphthacene derivative and organic electroluminescent device using the sameIDEMITSU KOSAN CO·Filed 2007·Application pending·0 cites
- 4746US2009021160A1Material for organic electroluminescent device, method for producing same and organic electroluminescent deviceIDEMITSU KOSAN CO·Filed 2007·Application pending·0 cites
- 4845US9871203B2Aromatic amine derivative, organic electroluminescent element and electronic deviceIDEMITSU KOSAN CO·Filed 2013·Granted Jan 16, 2018·0 cites·36 claims
- 4945US2014217393A1Organic electroluminescence elementKATO TOMOKI·Filed 2012·Application pending·0 cites
- 5036US9559311B2Anthracene derivative, organic-electroluminescence-device material, organic electroluminescence device, and electronic equipmentIDEMITSU KOSAN CO·Filed 2013·Granted Jan 31, 2017·0 cites·16 claims
Showing the top 50 of 52 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →