Inventor · disambiguated record
Takuma Yasuda
Also filed as: YASUDA TAKUMA
27 granted patents·9 pending applications·63 citations·filing 2012–2023
94Inventor score
Files withUNIV KYUSHU NAT UNIV CORP10SAMSUNG DISPLAY CO LTD7KYULUX INC5HODOGAYA CHEMICAL CO LTD4NIPPON STEEL CHEMICAL & MAT CO LTD3
Top patents by PatentIndex Score
36 records- 0195US9153788B2Organic light-emitting device, and delayed fluorescent material and compound used thereforUNIV KYUSHU NAT UNIV CORP·Filed 2012·Granted Oct 6, 2015·16 cites·6 claims
- 0291US9502668B2Organic light-emitting device, and light-emitting material and compound used thereforUNIV KYUSHU NAT UNIV CORP·Filed 2013·Granted Nov 22, 2016·12 cites·4 claims
- 0389US9685615B2Light emitting material, delayed fluorescent emitter, organic light emitting device, and compoundUNIV KYUSHU NAT UNIV CORP·Filed 2014·Granted Jun 20, 2017·8 cites·1 claims
- 0489US9634262B2Charge transport material, host material, thin film and organic light emitting elementUNIV KYUSHU NAT UNIV CORP·Filed 2014·Granted Apr 25, 2017·10 cites·7 claims
- 0582US10276803B2Organic light-emitting device, and light-emitting material and compound used thereforKYULUX INC·Filed 2016·Granted Apr 30, 2019·2 cites·19 claims
- 0682US10032995B2Compound having diazatriphenylene ring structure, and organic electroluminescent deviceHODOGAYA CHEMICAL CO LTD·Filed 2014·Granted Jul 24, 2018·3 cites·16 claims
- 0780US10497878B2Dicyanopyrazine compound, luminescent material, luminescence device using the same, and method for producing 2,5-dicyano-3,6-dihalogenopyrazineUNIV KYUSHU NAT UNIV CORP·Filed 2019·Granted Dec 3, 2019·1 cites·6 claims
- 0878US11283026B2Compound having tetraazatriphenylene ring structure, light-emitting material, and organic electroluminescent deviceHODOGAYA CHEMICAL CO LTD·Filed 2015·Granted Mar 22, 2022·2 cites·14 claims
- 0977US10381573B2Light-emitting material, organic light-emitting device, and compoundKYULUX INC·Filed 2014·Granted Aug 13, 2019·3 cites·18 claims
- 1077US9246110B2Organic material and photoelectric conversion elementARAI RYOTA·Filed 2015·Granted Jan 26, 2016·2 cites·11 claims
- 1169US10629826B2Organic compound and photoelectric conversion elementRICOH CO LTD·Filed 2016·Granted Apr 21, 2020·1 cites·21 claims
- 1268US10062854B2Organic material and photoelectric conversion elementARAI RYOTA·Filed 2017·Granted Aug 28, 2018·1 cites·7 claims
- 1367US10522763B2Dicyanopyrazine compound, luminescent material, luminescence device using the same, and method for producing 2,5-dicyano-3,6-dihalogenopyrazineUNIV KYUSHU NAT UNIV CORP·Filed 2019·Granted Dec 31, 2019·0 cites·4 claims
- 1466US10497883B2Organic light-emitting device, host material, light-emitting material, and compoundKYULUX INC·Filed 2015·Granted Dec 3, 2019·1 cites·17 claims
- 1566US2019252625A1Organic light-emitting device, and light-emitting material and compound used thereforKYULUX INC·Filed 2019·Application pending·0 cites
- 1662US8901543B2Organic semiconductor device and its production method, and compoundADACHI CHIHAYA·Filed 2012·Granted Dec 2, 2014·1 cites·23 claims
- 1760US10399960B2Dicyanopyrazine compound, luminescent material, luminescence device using the same, and method for producing 2,5-dicyano-3,6-dihalogenopyrazineUNIV KYUSHU NAT UNIV CORP·Filed 2016·Granted Sep 3, 2019·0 cites·6 claims
- 1857US12497363B2Isophthalonitrile compound, luminescent material and luminescent element using the sameUNIV KYUSHU NAT UNIV CORP·Filed 2020·Granted Dec 16, 2025·0 cites·3 claims
- 1956US12122768B2Benzonitrile derivative, light-emitting material, and light-emitting element using sameUNIV KYUSHU NAT UNIV CORP·Filed 2019·Granted Oct 22, 2024·0 cites·5 claims
- 2056US11545631B2Organic electroluminescence device and polycyclic compound for organic electroluminescence deviceSAMSUNG DISPLAY CO LTD·Filed 2019·Granted Jan 3, 2023·0 cites·20 claims
- 2155US11279680B2Dicyano N-heterocyclic compound, light-emitting material, and light-emitting element in which same is usedUNIV KYUSHU NAT UNIV CORP·Filed 2018·Granted Mar 22, 2022·0 cites·4 claims
- 2254US10934248B2Light-emitting material, organic light-emitting device, and compoundKYULUX INC·Filed 2019·Granted Mar 2, 2021·0 cites·16 claims
- 2353US12365683B2Light emitting device and fused polycyclic compound for light emitting deviceSAMSUNG DISPLAY CO LTD·Filed 2021·Granted Jul 22, 2025·0 cites·20 claims
- 2452US2025171683A1Emission material, and organic electroluminescent deviceNIPPON STEEL CHEMICAL & MAT CO LTD·Filed 2023·Application pending·0 cites
- 2551US2023016620A1Light emitting element and polycyclic compound for the sameSAMSUNG DISPLAY CO LTD·Filed 2022·Application pending·0 cites
- 2650US11950503B2Organic material and photoelectric conversion elementRICOH CO LTD·Filed 2019·Granted Apr 2, 2024·0 cites·7 claims
- 2750US2023309400A1Thermally activated delayed fluorescence material and organic electroluminescent elementNIPPON STEEL CHEMICAL & MAT CO LTD·Filed 2021·Application pending·0 cites
- 2849US2016204352A1Compound having triphenylene ring structure, and organic electroluminescent deviceHODOGAYA CHEMICAL CO LTD·Filed 2014·Application pending·0 cites
- 2948US2023371375A1Light-emitting material, and organic electroluminescent elementNIPPON STEEL CHEMICAL & MAT CO LTD·Filed 2021·Application pending·0 cites
- 3047US12178123B2Organic electroluminescence device and compound for organic electroluminescence deviceSAMSUNG DISPLAY CO LTD·Filed 2021·Granted Dec 24, 2024·0 cites·19 claims
- 3146US10714693B2Polycyclic compound and organic electroluminescence device including the sameSAMSUNG DISPLAY CO LTD·Filed 2017·Granted Jul 14, 2020·0 cites·20 claims
- 3243US10686139B2Nitrogen-containing compound and organic electroluminescence device including the sameSAMSUNG DISPLAY CO LTD·Filed 2016·Granted Jun 16, 2020·0 cites·18 claims
- 3341US2014034935A1Compound having substituted ortho-terphenyl structure, and organic electroluminescent deviceADACHI CHIHAYA·Filed 2012·Application pending·0 cites
- 3440US2013328038A1Phosphorescent material, process for producing phosphorescent material, and phosphorescent elementTANEDA Masatsugu·Filed 2012·Application pending·0 cites
- 3540US2018287090A1Phosphorus-containing compound and organic electroluminescence device including the sameSAMSUNG DISPLAY CO LTD·Filed 2017·Application pending·0 cites
- 3635US10916711B2Spiro compound having azafluorene ring structure, light-emitting material, and organic electroluminescent deviceHODOGAYA CHEMICAL CO LTD·Filed 2015·Granted Feb 9, 2021·0 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when Takuma Yasuda files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →