Assignee
IDEMITSU KOSAN CO
JP·1,865 granted patents·1,057 pending applications·27,298 citations·filing 1973–2025
Top patents by PatentIndex Score
2,922 records- 0199US8981369B2Field effect transistor using oxide semiconductor and method for manufacturing the sameIDEMITSU KOSAN CO·Filed 2013·Granted Mar 17, 2015·86 cites·7 claims
- 0299US8384077B2Field effect transistor using oxide semicondutor and method for manufacturing the sameIDEMITSU KOSAN CO·Filed 2008·Granted Feb 26, 2013·247 cites·12 claims
- 0399US8025815B2Naphthalene 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
- 0499US7906226B2Organic electroluminescent deviceIDEMITSU KOSAN CO·Filed 2005·Granted Mar 15, 2011·81 cites·13 claims
- 0599US7399537B2Organic electroluminescence device and phenylenediamine derivativeIDEMITSU KOSAN CO·Filed 2005·Granted Jul 15, 2008·87 cites·7 claims
- 0699US6538374B2Actively driven organic EL device and manufacturing method thereofIDEMITSU KOSAN CO·Filed 2001·Granted Mar 25, 2003·259 cites·25 claims
- 0799US4814540AProcess for producing propylene oligomersIDEMITSU KOSAN CO·Filed 1987·Granted Mar 21, 1989·120 cites·16 claims
- 0898US10435350B2Organic electroluminecence deviceIDEMITSU KOSAN CO·Filed 2018·Granted Oct 8, 2019·128 cites·57 claims
- 0998US10249832B1Organic electroluminescence device and novel compoundIDEMITSU KOSAN CO·Filed 2018·Granted Apr 2, 2019·32 cites·20 claims
- 1098US9660195B2Anthracene derivative having a phenanthryl groupIDEMITSU KOSAN CO·Filed 2013·Granted May 23, 2017·24 cites·23 claims
- 1198US8791457B2Oxide semiconductor field effect transistor and method for manufacturing the sameIDEMITSU KOSAN CO·Filed 2013·Granted Jul 29, 2014·52 cites·16 claims
- 1298US8723175B2Oxide semiconductor field effect transistor and method for manufacturing the sameIDEMITSU KOSAN CO·Filed 2013·Granted May 13, 2014·60 cites·14 claims
- 1398US8044390B2Material for organic electroluminescent device, organic electroluminescent device, and organic electroluminescent displayIDEMITSU KOSAN CO·Filed 2007·Granted Oct 25, 2011·76 cites·16 claims
- 1498US8034256B2Naphthalene 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
- 1598US8029697B2Naphthalene 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
- 1698US8030195B2TFT substrate and method for manufacturing TFT substrateIDEMITSU KOSAN CO·Filed 2010·Granted Oct 4, 2011·69 cites·17 claims
- 1798US7998372B2Semiconductor thin film, method for manufacturing the same, thin film transistor, and active-matrix-driven display panelIDEMITSU KOSAN CO·Filed 2006·Granted Aug 16, 2011·218 cites·18 claims
- 1898US7732063B2Organic electroluminescence device and organic light emitting mediumIDEMITSU KOSAN CO·Filed 2007·Granted Jun 8, 2010·36 cites·25 claims
- 1998US7306861B2Sputtering target, sintered compact, electrically conductive film produced by using the same, and organic EL device and substrate used for the sameIDEMITSU KOSAN CO·Filed 2006·Granted Dec 11, 2007·45 cites·7 claims
- 2098US7250532B2Method for producing aromatic amino compoundIDEMITSU KOSAN CO·Filed 2005·Granted Jul 31, 2007·103 cites·6 claims
- 2198US6951693B2Organic electroluminescence deviceIDEMITSU KOSAN CO·Filed 2002·Granted Oct 4, 2005·88 cites·9 claims
- 2298US6660410B2Organic electroluminescence elementIDEMITSU KOSAN CO·Filed 2001·Granted Dec 9, 2003·125 cites·10 claims
- 2398US6416888B1Organic electroluminescent device and method of manufacture thereofIDEMITSU KOSAN CO·Filed 2000·Granted Jul 9, 2002·159 cites·25 claims
- 2498US5962962AMethod of encapsulating organic electroluminescence device and organic electroluminescence deviceIDEMITSU KOSAN CO·Filed 1995·Granted Oct 5, 1999·429 cites·20 claims
- 2598US5121029AElectroluminescence device having an organic electroluminescent elementIDEMITSU KOSAN CO·Filed 1990·Granted Jun 9, 1992·297 cites·10 claims
- 2697US12199236B2Sulfide solid electrolyte and treatment method thereforIDEMITSU KOSAN CO·Filed 2023·Granted Jan 14, 2025·4 cites·15 claims
- 2797US12089492B2Aromatic heterocyclic derivative, material for organic electroluminescent element, and organic electroluminescent elementIDEMITSU KOSAN CO·Filed 2022·Granted Sep 10, 2024·2 cites·6 claims
- 2897US11575087B1Organic electroluminescence device, light emitting device, organic electroluminescence display device and electronic deviceIDEMITSU KOSAN CO·Filed 2021·Granted Feb 7, 2023·7 cites·27 claims
- 2997US11094886B2Organic electroluminescent element and electronic deviceIDEMITSU KOSAN CO·Filed 2020·Granted Aug 17, 2021·4 cites·30 claims
- 3097US10879482B2Organic electroluminescence deviceIDEMITSU KOSAN CO·Filed 2017·Granted Dec 29, 2020·9 cites·15 claims
- 3197US9806373B2Solid electrolyteIDEMITSU KOSAN CO·Filed 2017·Granted Oct 31, 2017·21 cites·17 claims
- 3297US9530969B2Material for organic electroluminescence device and organic electroluminescence deviceIDEMITSU KOSAN CO·Filed 2013·Granted Dec 27, 2016·25 cites·10 claims
- 3397US9391279B2Aromatic amine derivative and organic electroluminescent device using the sameIDEMITSU KOSAN CO·Filed 2013·Granted Jul 12, 2016·13 cites·24 claims
- 3497US9219234B2Light-emitting material for organic electroluminescent device, organic electroluminescent device using same, and material for organic electroluminescent deviceIDEMITSU KOSAN CO·Filed 2013·Granted Dec 22, 2015·14 cites·24 claims
- 3597US9087997B2Aromatic amine derivative and organic electroluminescence deviceIDEMITSU KOSAN CO·Filed 2013·Granted Jul 21, 2015·19 cites·17 claims
- 3697US7982215B2TFT substrate and method for manufacturing TFT substrateIDEMITSU KOSAN CO·Filed 2006·Granted Jul 19, 2011·81 cites·38 claims
- 3797US7906777B2Semiconductor thin film and method for manufacturing same, and thin film transistorIDEMITSU KOSAN CO·Filed 2006·Granted Mar 15, 2011·58 cites·20 claims
- 3897US6933672B2Actively driven organic EL device and manufacturing method thereofIDEMITSU KOSAN CO·Filed 2003·Granted Aug 23, 2005·113 cites·27 claims
- 3997US6617051B1Organic electroluminescence deviceIDEMITSU KOSAN CO·Filed 1999·Granted Sep 9, 2003·81 cites·32 claims
- 4097US6093864AAromatic dimethylidyne compoundsIDEMITSU KOSAN CO·Filed 1993·Granted Jul 25, 2000·77 cites·5 claims
- 4197US5130603AOrganic electroluminescence deviceIDEMITSU KOSAN CO·Filed 1990·Granted Jul 14, 1992·248 cites·32 claims
- 4296US12077500B2Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic deviceIDEMITSU KOSAN CO·Filed 2023·Granted Sep 3, 2024·1 cites·20 claims
- 4396US11482675B1Organic electroluminescence device and electronic apparatusIDEMITSU KOSAN CO·Filed 2021·Granted Oct 25, 2022·7 cites·25 claims
- 4496US10680181B2Organic electroluminescence device and novel compoundIDEMITSU KOSAN CO·Filed 2019·Granted Jun 9, 2020·11 cites·23 claims
- 4596US10593889B1Compound and organic electroluminescence deviceIDEMITSU KOSAN CO·Filed 2019·Granted Mar 17, 2020·14 cites·21 claims
- 4696US10205101B2Light-emitting material for organic electroluminescent device, organic electroluminescent device using same, and material for organic electroluminescent deviceIDEMITSU KOSAN CO·Filed 2018·Granted Feb 12, 2019·9 cites·28 claims
- 4796US9786846B2Light-emitting material for organic electroluminescent device, organic electroluminescent device using same, and material for organic electroluminescent deviceIDEMITSU KOSAN CO·Filed 2015·Granted Oct 10, 2017·10 cites·30 claims
- 4896US9614170B2Organic electroluminescent elementIDEMITSU KOSAN CO·Filed 2013·Granted Apr 4, 2017·17 cites·11 claims
- 4996US9466800B2Aromatic amine derivative, and organic electroluminescent element comprising the sameIDEMITSU KOSAN CO·Filed 2015·Granted Oct 11, 2016·7 cites·16 claims
- 5096US9219242B2Organic electroluminescent elementIDEMITSU KOSAN CO·Filed 2013·Granted Dec 22, 2015·23 cites·10 claims
Showing the top 50 of 2,922 patent records by PatentIndex Score.
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