Inventor · disambiguated record
Hirokazu Kuwabara
Also filed as: IWANAGA KAZUHIKO · KUWABARA HIROKAZU
41 granted patents·24 pending applications·157 citations·filing 2000–2025
96Inventor score
Files withSAMSUNG DISPLAY CO LTD34KUWABARA HIROKAZU6NISHIKAWA RUBBER CO LTD6NIPPON KAYAKU KK5ENTEGRIS INC3
Top patents by PatentIndex Score
65 records- 0193US9038319B2Seal member of automobile doorNISHIKAWA RUBBER CO LTD·Filed 2012·Granted May 26, 2015·15 cites·12 claims
- 0288US7184167B1Data processing for arranging text and image data on a substrateBROTHER IND LTD·Filed 2000·Granted Feb 27, 2007·67 cites·46 claims
- 0387US12058927B2Organic electroluminescence device and polycyclic compound for organic electroluminescence deviceSAMSUNG DISPLAY CO LTD·Filed 2020·Granted Aug 6, 2024·2 cites·20 claims
- 0487US8973894B2Solenoid and solenoid valveOZAKI HIROYASU·Filed 2012·Granted Mar 10, 2015·11 cites·11 claims
- 0587US8124964B2Field-effect transistorTAKIMIYA KAZUO·Filed 2007·Granted Feb 28, 2012·13 cites·28 claims
- 0682US7632950B2Pyridyltetrahydropyridines and pyridylpiperidines and method of manufacturing themFUJIFILM FINECHEMICALS CO LTD·Filed 2004·Granted Dec 15, 2009·18 cites·2 claims
- 0781US11905361B2Base proliferating agent, and base-reactive resin composition containing said base proliferating agentNIPPON KAYAKU KK·Filed 2022·Granted Feb 20, 2024·0 cites·4 claims
- 0881US11581493B2Organic electroluminescence device and condensed polycyclic compound for organic electroluminescence deviceSAMSUNG DISPLAY CO LTD·Filed 2020·Granted Feb 14, 2023·1 cites·20 claims
- 0981US11430960B2Organic electroluminescence device and nitrogen-containing compound for organic electroluminescence deviceSAMSUNG DISPLAY CO LTD·Filed 2020·Granted Aug 30, 2022·1 cites·20 claims
- 1077US9468872B2Purification system with manifold assembly and removable filter cassetteENTEGRIS INC·Filed 2013·Granted Oct 18, 2016·4 cites·21 claims
- 1177US9018630B2Heterocyclic dinaphtho thieno thiophene (DNTT) compounds for use as organic semiconductor thin films in field effect transistors and related methodsTAKIMIYA KAZUO·Filed 2012·Granted Apr 28, 2015·4 cites·18 claims
- 1272US9802142B2Purifier cassetteENTEGRIS INC·Filed 2013·Granted Oct 31, 2017·3 cites·12 claims
- 1371US2025393475A1Light-emitting device including condensed cyclic compound, electronic apparatus including the light-emitting device, and the condensed cyclic compoundSAMSUNG DISPLAY CO LTD·Filed 2025·Application pending·0 cites
- 1470US8783750B2Cover member for automobilesNISHIKAWA RUBBER CO LTD·Filed 2013·Granted Jul 22, 2014·4 cites·20 claims
- 1570US8313671B2Heterocyclic compound and use thereofKUWABARA HIROKAZU·Filed 2009·Granted Nov 20, 2012·2 cites·36 claims
- 1669US2025359482A1Light-emitting device including condensed cyclic compound, electronic apparatus including the light-emitting device, and the condensed cyclic compoundSAMSUNG DISPLAY CO LTD·Filed 2025·Application pending·0 cites
- 1766US8832998B2Sealing mechanism of automobile doorNISHIKAWA RUBBER CO LTD·Filed 2012·Granted Sep 16, 2014·4 cites·11 claims
- 1865US7723522B2Pyridine derivative production methodFUJIFILM FINECHEMICALS CO LTD·Filed 2005·Granted May 25, 2010·1 cites·8 claims
- 1965US2025151618A1Light emitting element, fused polycyclic compound for the same, and display device including the sameSAMSUNG DISPLAY CO LTD·Filed 2024·Application pending·0 cites
- 2063US10286769B2Weather stripNISHIKAWA RUBBER CO LTD·Filed 2017·Granted May 14, 2019·1 cites·8 claims
- 2163US2024334829A1Light emitting element and fused polycyclic compound for the light emitting elementSAMSUNG DISPLAY CO LTD·Filed 2024·Application pending·0 cites
- 2262US11401370B2Base proliferating agent, and base-reactive resin composition containing said base proliferating agentNIPPON KAYAKU KK·Filed 2019·Granted Aug 2, 2022·0 cites·6 claims
- 2362US10549618B2Weather stripNISHIKAWA RUBBER CO LTD·Filed 2017·Granted Feb 4, 2020·1 cites·5 claims
- 2462US9073938B2Method for producing aromatic compoundKUWABARA HIROKAZU·Filed 2008·Granted Jul 7, 2015·0 cites·1 claims
- 2562US7997420B2Filter apparatus capable of releasing airENTEGRIS INC·Filed 2007·Granted Aug 16, 2011·1 cites·12 claims
- 2661US8800207B2Glass-run retainer for automobile door and door structure of automobileNISHIKAWA RUBBER CO LTD·Filed 2012·Granted Aug 12, 2014·2 cites·4 claims
- 2760US8530662B2Pyridyltetrahydropyridines and pyridylpiperidines, and method of manufacturing themKUWABARA HIROKAZU·Filed 2009·Granted Sep 10, 2013·0 cites·6 claims
- 2860US2024284796A1Light emitting element and fused polycyclic compound for the light emitting elementSAMSUNG DISPLAY CO LTD·Filed 2023·Application pending·0 cites
- 2960US2024284795A1Light emitting element and fused polycyclic compound for the light emitting elementSAMSUNG DISPLAY CO LTD·Filed 2023·Application pending·0 cites
- 3060US2024292751A1Light emitting element and fused polycyclic compound for the sameSAMSUNG DISPLAY CO LTD·Filed 2023·Application pending·0 cites
- 3159US2024284691A1Light emitting element and fused polycyclic compound for light emitting elementSAMSUNG DISPLAY CO LTD·Filed 2023·Application pending·0 cites
- 3259US2024260467A1Light emitting element and polycyclic compound for the sameSAMSUNG DISPLAY CO LTD·Filed 2023·Application pending·0 cites
- 3359US2024260292A1Light emitting element and polycyclic compound for the sameSAMSUNG DISPLAY CO LTD·Filed 2023·Application pending·0 cites
- 3458US2025280650A1Light emitting element, fused polycyclic compound for the same, and display device including the sameSAMSUNG DISPLAY CO LTD·Filed 2025·Application pending·0 cites
- 3558US2024215445A1Light emitting device and fused polycyclic compound for the light emitting deviceSAMSUNG DISPLAY CO LTD·Filed 2023·Application pending·0 cites
- 3657US2024138263A1Light emitting element and polycyclic compound for the sameSAMSUNG DISPLAY CO LTD·Filed 2023·Application pending·0 cites
- 3756US2023217826A1Light emitting element and polycyclic compound for the sameSAMSUNG DISPLAY CO LTD·Filed 2023·Application pending·0 cites
- 3856US2023219981A1Light emitting element and polycyclic compound for the sameSAMSUNG DISPLAY CO LTD·Filed 2022·Application pending·0 cites
- 3955US12069946B2Organic electroluminescence device and polycyclic compound for organic electroluminescence deviceSAMSUNG DISPLAY CO LTD·Filed 2021·Granted Aug 20, 2024·0 cites·20 claims
- 4055US11557734B2Organic electroluminescence device and polycyclic compound for organic electroluminescence deviceSAMSUNG DISPLAY CO LTD·Filed 2020·Granted Jan 17, 2023·0 cites·20 claims
- 4155US2023120766A1Fused polycyclic compound and light emitting device including the sameSAMSUNG DISPLAY CO LTD·Filed 2022·Application pending·0 cites
- 4254US2023143071A1Fused polycyclic compound and light emitting device including the sameSAMSUNG DISPLAY CO LTD·Filed 2022·Application pending·0 cites
- 4353US12371613B2Organic electroluminescence device and polycyclic compound for organic electroluminescence deviceSAMSUNG DISPLAY CO LTD·Filed 2021·Granted Jul 29, 2025·0 cites·20 claims
- 4452US8167140B2Filter apparatus capable of releasing airKUWABARA HIROKAZU·Filed 2011·Granted May 1, 2012·0 cites·12 claims
- 4552US2023057142A1Light emitting device and polycyclic compound for the sameSAMSUNG DISPLAY CO LTD·Filed 2022·Application pending·0 cites
- 4651US12435267B2Organic electroluminescence device and polycyclic compound for organic electroluminescence deviceSAMSUNG DISPLAY CO LTD·Filed 2021·Granted Oct 7, 2025·0 cites·22 claims
- 4751US7335430B2Fuel cell systemHONDA MOTOR CO LTD·Filed 2004·Granted Feb 26, 2008·2 cites·11 claims
- 4850US12426499B2Organic electroluminescence device and fused polycyclic compound for organic electroluminescence deviceSAMSUNG DISPLAY CO LTD·Filed 2020·Granted Sep 23, 2025·0 cites·18 claims
- 4950US11844272B2Organic electroluminescence device and polycyclic compound for organic electroluminescence deviceSAMSUNG DISPLAY CO LTD·Filed 2020·Granted Dec 12, 2023·0 cites·22 claims
- 5050US11527726B2Organic electroluminescence device and compound for organic electroluminescence deviceSAMSUNG DISPLAY CO LTD·Filed 2020·Granted Dec 13, 2022·0 cites·20 claims
Showing the top 50 of 65 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →