Inventor · disambiguated record
Masahiro Kawamura
Also filed as: KAWAMURA MASAHIRO
164 granted patents·51 pending applications·1,940 citations·filing 1987–2024
99Inventor score
Top patents by PatentIndex Score
215 records- 0199US8025815B2Naphthalene derivative, material for organic electroluminescence device, and organic electroluminescence device using the sameIDEMITSU KOSAN CO·Filed 2008·Granted Sep 27, 2011·46 cites·15 claims
- 0298US10435350B2Organic electroluminecence deviceIDEMITSU KOSAN CO·Filed 2018·Granted Oct 8, 2019·128 cites·57 claims
- 0398US9660195B2Anthracene derivative having a phenanthryl groupIDEMITSU KOSAN CO·Filed 2013·Granted May 23, 2017·24 cites·23 claims
- 0498US8431250B2Aromatic amine derivative, and organic electroluminescent element comprising the sameMIZUKI YUMIKO·Filed 2010·Granted Apr 30, 2013·23 cites·36 claims
- 0598US8394510B2Aromatic amine derivative and organic electroluminescence device using the sameMIZUKI YUMIKO·Filed 2007·Granted Mar 12, 2013·49 cites·21 claims
- 0698US8221907B2Chrysene derivative and organic electroluminescent device using the sameKAWAMURA MASAHIRO·Filed 2008·Granted Jul 17, 2012·42 cites·13 claims
- 0798US8034256B2Naphthalene derivative, material for organic electroluminescence device, and organic electroluminescence device using the sameIDEMITSU KOSAN CO·Filed 2008·Granted Oct 11, 2011·35 cites·19 claims
- 0898US8029697B2Naphthalene derivative, material for organic electroluminescence device, and organic electroluminescence device using the sameIDEMITSU KOSAN CO·Filed 2008·Granted Oct 4, 2011·32 cites·17 claims
- 0997US9391279B2Aromatic amine derivative and organic electroluminescent device using the sameIDEMITSU KOSAN CO·Filed 2013·Granted Jul 12, 2016·13 cites·24 claims
- 1097US8587192B2Organic electroluminescence device and material for organic electroluminescence deviceNISHIMURA KAZUKI·Filed 2011·Granted Nov 19, 2013·38 cites·12 claims
- 1197US8294142B2Organic EL deviceNISHIMURA KAZUKI·Filed 2008·Granted Oct 23, 2012·37 cites·23 claims
- 1297US7233137B2Power supply systemSHARP KK·Filed 2004·Granted Jun 19, 2007·267 cites·54 claims
- 1396US12077500B2Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic deviceIDEMITSU KOSAN CO·Filed 2023·Granted Sep 3, 2024·1 cites·20 claims
- 1496US9466800B2Aromatic amine derivative, and organic electroluminescent element comprising the sameIDEMITSU KOSAN CO·Filed 2015·Granted Oct 11, 2016·7 cites·16 claims
- 1596US9166179B2Aromatic amine derivative, and organic electroluminescent element comprising the sameMIZUKI YUMIKO·Filed 2013·Granted Oct 20, 2015·13 cites·20 claims
- 1696US9099658B2Organic electroluminescence deviceKAWAMURA MASAHIRO·Filed 2013·Granted Aug 4, 2015·16 cites·10 claims
- 1796US8895159B2Aromatic amine derivative and organic electroluminescence device using the sameIDEMITSU KOSAN CO·Filed 2013·Granted Nov 25, 2014·19 cites·15 claims
- 1896US8629430B2Anthracene derivative and organic electroluminescent element using the sameKAWAMURA MASAHIRO·Filed 2010·Granted Jan 14, 2014·15 cites·24 claims
- 1996US8568903B2Phenanthrene derivative, and material for organic EL elementKAWAMURA MASAHIRO·Filed 2008·Granted Oct 29, 2013·36 cites·17 claims
- 2096US8518560B2Aromatic amine derivative and organic electroluminescent device using the sameMIZUKI YUMIKO·Filed 2008·Granted Aug 27, 2013·18 cites·21 claims
- 2196US8330350B2Organic electroluminescence device and material for organic electroluminescence deviceNISHIMURA KAZUKI·Filed 2008·Granted Dec 11, 2012·49 cites·15 claims
- 2296US8154195B2Organic electroluminescence device and material for organic electroluminescence deviceNISHIMURA KAZUKI·Filed 2008·Granted Apr 10, 2012·48 cites·6 claims
- 2396US8021574B2Naphthalene derivative, material for organic electroluminescence device, and organic electroluminescence device using the sameIDEMITSU KOSAN CO·Filed 2008·Granted Sep 20, 2011·38 cites·15 claims
- 2495US11739061B2Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic deviceIDEMITSU KOSAN CO·Filed 2021·Granted Aug 29, 2023·2 cites·15 claims
- 2595US10153450B2Fused aromatic derivative and organic electroluminescence device using the sameIDEMITSU KOSAN CO·Filed 2013·Granted Dec 11, 2018·9 cites·14 claims
- 2695US9741938B2Aromatic amine derivative, and organic electroluminescent element comprising the sameIDEMITSU KOSAN CO·Filed 2016·Granted Aug 22, 2017·8 cites·26 claims
- 2795US9373792B2Anthracene derivative and organic electroluminescent element using the sameIDEMITSU KOSAN CO·Filed 2015·Granted Jun 21, 2016·8 cites·28 claims
- 2895US8866135B2Anthracene derivative and organic electroluminescent element using the sameIDEMITSU KOSAN CO·Filed 2013·Granted Oct 21, 2014·11 cites·24 claims
- 2995US8779655B2Organic electroluminescence device and material for organic electroluminescence deviceNISHIMURA KAZUKI·Filed 2008·Granted Jul 15, 2014·47 cites·18 claims
- 3095US8211552B2Organic electroluminescence deviceNISHIMURA KAZUKI·Filed 2008·Granted Jul 3, 2012·44 cites·12 claims
- 3195US7998596B2Aromatic amine derivative and organic electroluminescence device using the sameIDEMITSU KOSAN CO·Filed 2008·Granted Aug 16, 2011·30 cites·33 claims
- 3295US7981523B2Aromatic amine derivative and organic electroluminescence device using the sameIDEMITSU KOSAN CO·Filed 2006·Granted Jul 19, 2011·21 cites·13 claims
- 3395US7833632B2Nitrogenous heterocycle derivative, and organic electroluminescent element employing the sameIDEMITSU KOSAN CO·Filed 2005·Granted Nov 16, 2010·20 cites·21 claims
- 3494US9169274B2Pyrene derivative and organic electroluminescent element using the sameMIZUKI YUMIKO·Filed 2010·Granted Oct 27, 2015·9 cites·10 claims
- 3594US9147847B2Anthracene derivative and organic electroluminescent element using the sameIDEMITSU KOSAN CO·Filed 2014·Granted Sep 29, 2015·9 cites·17 claims
- 3694US9024301B2Organic luminescent medium and organic EL deviceIDEMITSU KOSAN CO·Filed 2013·Granted May 5, 2015·12 cites·7 claims
- 3794US8436343B2Organic EL deviceNISHIMURA KAZUKI·Filed 2008·Granted May 7, 2013·32 cites·7 claims
- 3894US7405326B2Aromatic amine derivatives and electroluminescence device using the sameIDEMITSU KOSAN CO·Filed 2006·Granted Jul 29, 2008·12 cites·5 claims
- 3993US10590080B2Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic deviceIDEMITSU KOSAN CO·Filed 2014·Granted Mar 17, 2020·6 cites·67 claims
- 4093US10297765B2Aromatic amine derivative and organic electroluminescent device using the sameIDEMITSU KOSAN CO·Filed 2016·Granted May 21, 2019·5 cites·26 claims
- 4193US9324950B2Organic electroluminescence deviceKAWAMURA YUICHIRO·Filed 2011·Granted Apr 26, 2016·14 cites·18 claims
- 4293US8097349B2Nitrogen containing heterocycle derivative and organic electroluminescent element using the sameYAMAMOTO HIROSHI·Filed 2010·Granted Jan 17, 2012·11 cites·9 claims
- 4392US10283717B2Organic electroluminescent device using aryl amine derivative containing heterocycleIDEMITSU KOSAN CO·Filed 2017·Granted May 7, 2019·5 cites·18 claims
- 4492US8217570B2Anthracene derivative and organic electroluminescent element using the sameKAWAMURA MASAHIRO·Filed 2005·Granted Jul 10, 2012·18 cites·16 claims
- 4591US9960360B2Organic electroluminescent device using aryl amine derivative containing heterocycleIDEMITSU KOSAN CO·Filed 2015·Granted May 1, 2018·4 cites·5 claims
- 4691US8803420B2Organic electroluminescence deviceKAWAMURA YUICHIRO·Filed 2011·Granted Aug 12, 2014·16 cites·16 claims
- 4791US8647754B2Aromatic diamine derivative and organic electroluminescent device using the sameMIZUKI YUMIKO·Filed 2008·Granted Feb 11, 2014·13 cites·10 claims
- 4890US8426036B2Organic EL device and anthracene derivativeNISHIMURA KAZUKI·Filed 2008·Granted Apr 23, 2013·15 cites·6 claims
- 4990US8222637B2Benzochrysene derivative and organic electroluminescence device using the sameKAWAMURA MASAHIRO·Filed 2008·Granted Jul 17, 2012·7 cites·12 claims
- 5089US11117857B2Compound, material for organic electroluminescent elements, organic electroluminescent element and electronic deviceIDEMITSU KOSAN CO·Filed 2016·Granted Sep 14, 2021·3 cites·14 claims
Showing the top 50 of 215 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →