Inventor · disambiguated record
Toshihiro Iwakuma
Also filed as: IWAKUMA TOSHIHIRO
89 granted patents·41 pending applications·1,251 citations·filing 2002–2021
99Inventor score
Top patents by PatentIndex Score
130 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
- 0299US7906226B2Organic electroluminescent deviceIDEMITSU KOSAN CO·Filed 2005·Granted Mar 15, 2011·81 cites·13 claims
- 0398US8470455B2Organic electroluminescent deviceMATSUURA MASAHIDE·Filed 2011·Granted Jun 25, 2013·47 cites·11 claims
- 0498US8221907B2Chrysene derivative and organic electroluminescent device using the sameKAWAMURA MASAHIRO·Filed 2008·Granted Jul 17, 2012·42 cites·13 claims
- 0598US8105701B2Organic electroluminescent deviceMATSUURA MASAHIDE·Filed 2011·Granted Jan 31, 2012·72 cites·12 claims
- 0698US8034256B2Naphthalene 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
- 0798US8029697B2Naphthalene 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
- 0898US7250532B2Method for producing aromatic amino compoundIDEMITSU KOSAN CO·Filed 2005·Granted Jul 31, 2007·103 cites·6 claims
- 0997US8587192B2Organic electroluminescence device and material for organic electroluminescence deviceNISHIMURA KAZUKI·Filed 2011·Granted Nov 19, 2013·38 cites·12 claims
- 1097US8294142B2Organic EL deviceNISHIMURA KAZUKI·Filed 2008·Granted Oct 23, 2012·37 cites·23 claims
- 1196US9082995B2Organic EL element and organic EL material-containing solutionNISHIMURA KAZUKI·Filed 2008·Granted Jul 14, 2015·32 cites·11 claims
- 1296US8568903B2Phenanthrene derivative, and material for organic EL elementKAWAMURA MASAHIRO·Filed 2008·Granted Oct 29, 2013·36 cites·17 claims
- 1396US8330350B2Organic electroluminescence device and material for organic electroluminescence deviceNISHIMURA KAZUKI·Filed 2008·Granted Dec 11, 2012·49 cites·15 claims
- 1496US8154195B2Organic electroluminescence device and material for organic electroluminescence deviceNISHIMURA KAZUKI·Filed 2008·Granted Apr 10, 2012·48 cites·6 claims
- 1596US8021574B2Naphthalene 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
- 1695US8779655B2Organic electroluminescence device and material for organic electroluminescence deviceNISHIMURA KAZUKI·Filed 2008·Granted Jul 15, 2014·47 cites·18 claims
- 1795US8623524B2Organic electroluminescent deviceIDEMITSU KOSAN CO·Filed 2013·Granted Jan 7, 2014·13 cites·18 claims
- 1895US8211552B2Organic electroluminescence deviceNISHIMURA KAZUKI·Filed 2008·Granted Jul 3, 2012·44 cites·12 claims
- 1995US8106391B2Organic EL deviceENDO JUN·Filed 2008·Granted Jan 31, 2012·25 cites·10 claims
- 2094US9601708B2Organic light emitting device and materials for use in sameYAMAMOTO HITOSHI·Filed 2011·Granted Mar 21, 2017·14 cites·10 claims
- 2194US8436343B2Organic EL deviceNISHIMURA KAZUKI·Filed 2008·Granted May 7, 2013·32 cites·7 claims
- 2294US8372529B2Crosslinked pi-conjugated heteroacene compound for organic electroluminescence device and organic electroluminescence device using the sameIDEMITSU KOSAN CO·Filed 2011·Granted Feb 12, 2013·9 cites·13 claims
- 2394US8057919B2Material for organic electroluminescence device and organic electroluminescence device using the sameKATO TOMOKI·Filed 2008·Granted Nov 15, 2011·11 cites·15 claims
- 2493US9056870B2Material for organic electroluminescence device and organic electroluminescence device using the sameKATO TOMOKI·Filed 2011·Granted Jun 16, 2015·7 cites·26 claims
- 2593US8039129B2Organic electroluminescence device and material for organic electroluminescence deviceIDEMITSU KOSAN CO·Filed 2010·Granted Oct 18, 2011·8 cites·20 claims
- 2692US7651791B2Material for organic electroluminescence device and electroluminescence device employing the sameIDEMITSU KOSAN CO·Filed 2005·Granted Jan 26, 2010·23 cites·17 claims
- 2792US7608993B2Blue organic electroluminescent device comprising dopants having ultraviolet and visible luminescent propertiesIDEMITSU KOSAN CO·Filed 2006·Granted Oct 27, 2009·17 cites·20 claims
- 2891US8940412B2Material for organic electroluminescent element, and organic electroluminescent elementTAKASHIMA YORIYUKI·Filed 2009·Granted Jan 27, 2015·15 cites·12 claims
- 2991US8178874B2Metal complex compound and organic electroluminescent device using sameOKUDA FUMIO·Filed 2010·Granted May 15, 2012·8 cites·8 claims
- 3090US9266851B2Fluorene-containing aromatic compound, material for organic electroluminescent element, and organic electroluminescent element using sameYOSHIDA KEI·Filed 2010·Granted Feb 23, 2016·10 cites·28 claims
- 3190US8426036B2Organic EL device and anthracene derivativeNISHIMURA KAZUKI·Filed 2008·Granted Apr 23, 2013·15 cites·6 claims
- 3290US8080658B2Material for organic electroluminescent element and organic electroluminescent element employing the sameIWAKUMA TOSHIHIRO·Filed 2007·Granted Dec 20, 2011·7 cites·13 claims
- 3389US8685543B2Material for organic electroluminescent devices and organic electroluminescent devices made by using the sameIWAKUMA TOSHIHIRO·Filed 2012·Granted Apr 1, 2014·4 cites·22 claims
- 3489US8574725B2Organic el element and solution containing organic el materialNISHIMURA KAZUKI·Filed 2008·Granted Nov 5, 2013·12 cites·16 claims
- 3589US8049411B2Material for organic electroluminescence device and organic electroluminescence device using the sameIDEMITSU KOSAN CO·Filed 2008·Granted Nov 1, 2011·7 cites·31 claims
- 3688US9660203B2Material for organic electroluminescence device and organic electroluminescence device using the sameIDEMITSU KOSAN CO·Filed 2016·Granted May 23, 2017·2 cites·28 claims
- 3788US8927118B2Material for organic electroluminescence device and organic electroluminescence device using the sameKATO TOMOKI·Filed 2012·Granted Jan 6, 2015·4 cites·45 claims
- 3888US8318323B2Polycyclic compounds and organic electroluminescence device employing the sameKATO TOMOKI·Filed 2009·Granted Nov 27, 2012·5 cites·24 claims
- 3988US8114530B2Material for organic electroluminescence device and organic electroluminescence device utilizing the sameIWAKUMA TOSHIHIRO·Filed 2007·Granted Feb 14, 2012·9 cites·32 claims
- 4087US8911886B2Material for organic electroluminescent devices and organic electroluminescent devices made by using the sameIDEMITSU KOSAN CO·Filed 2013·Granted Dec 16, 2014·4 cites·12 claims
- 4187US7846560B2Material for organic electroluminescence device and electroluminescence device employing the sameIDEMITSU KOSAN CO·Filed 2009·Granted Dec 7, 2010·20 cites·11 claims
- 4285US10026907B2Material for organic electroluminescence device and organic electroluminescence device using the sameIDEMITSU KOSAN CO·Filed 2017·Granted Jul 17, 2018·1 cites·18 claims
- 4385US8207526B2Organic EL deviceNISHIMURA KAZUKI·Filed 2008·Granted Jun 26, 2012·8 cites·24 claims
- 4485US8106390B2Metal complex compound and organic electroluminescent device using sameOKUDA FUMIO·Filed 2010·Granted Jan 31, 2012·5 cites·5 claims
- 4584US11069862B2Material for organic electroluminescence device and organic electroluminescence device using the sameIDEMITSU KOSAN CO·Filed 2017·Granted Jul 20, 2021·1 cites·32 claims
- 4684US9847493B2Material for organic electroluminescence device and organic electroluminescence device using the sameIDEMITSU KOSAN CO·Filed 2016·Granted Dec 19, 2017·2 cites·16 claims
- 4784US8759819B2Organic electroluminescence deviceNISHIMURA KAZUKI·Filed 2008·Granted Jun 24, 2014·8 cites·5 claims
- 4884US7737625B2Organic electroluminescent device with carrier blocking layer interposed between two emitting layersIDEMITSU KOSAN CO·Filed 2005·Granted Jun 15, 2010·9 cites·11 claims
- 4983US8912531B2Organic electroluminescent deviceOGIWARA TOSHINARI·Filed 2009·Granted Dec 16, 2014·7 cites·16 claims
- 5083US8035297B2Organic electroluminescent device with carrier blocking layer interposed between two emitting layersIDEMITSU KOSAN CO·Filed 2010·Granted Oct 11, 2011·5 cites·18 claims
Showing the top 50 of 130 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →