Inventor · disambiguated record
Koji Takaku
Also filed as: TAKAKU KOJI
63 granted patents·16 pending applications·143 citations·filing 1999–2023
98Inventor score
Top patents by PatentIndex Score
79 records- 0190US9586972B2Organic thin film transistor, organic semiconductor thin film, and organic semiconductor materialFUJIFILM CORP·Filed 2015·Granted Mar 7, 2017·7 cites·15 claims
- 0289US9608207B2Organic electroluminescence elementTAKAKU KOJI·Filed 2012·Granted Mar 28, 2017·9 cites·30 claims
- 0388US7220466B2Liquid crystal composition and liquid crystal deviceFUJIFILM CORP·Filed 2005·Granted May 22, 2007·15 cites·15 claims
- 0485US9728726B2Organic electroluminescent element, material for organic electroluminescent element and light emitting device, display device, and illumination device, each employing organic electroluminescent elementUDC IRELAND LTD·Filed 2012·Granted Aug 8, 2017·9 cites·32 claims
- 0585US9447111B2Organic thin film transistor, organic semiconductor thin film, and organic semiconductor materialFUJIFILM CORP·Filed 2015·Granted Sep 20, 2016·5 cites·14 claims
- 0684US10297760B2Organic electroluminescent element, compound and material for organic electroluminescent element, used in the same, and light emitting device, display device and illumination device, using the elementUDC IRELAND LTD·Filed 2017·Granted May 21, 2019·3 cites·17 claims
- 0784US7623203B2Light modulating materialFUJIFILM CORP·Filed 2007·Granted Nov 24, 2009·7 cites·24 claims
- 0883US9525139B2Materials for an organic electroluminescence element, electroluminescent, display and illuminating devices using the elementsUDC IRELAND LTD·Filed 2013·Granted Dec 20, 2016·3 cites·12 claims
- 0981US6437169B11-naphthol compound and method for preparing compound having acidic proton using the sameFUJI PHOTO FILM CO LTD·Filed 2000·Granted Aug 20, 2002·6 cites·18 claims
- 1080US7898625B2Liquid crystal device having a pair of electrodes with a vertical alignment film in which the chiral pitch length to gap ratio (P/G) is 0.06 to less than 1.0FUJIFILM CORP·Filed 2008·Granted Mar 1, 2011·7 cites·10 claims
- 1180US7736533B2Liquid crystal composition, liquid crystal device, reflective display material and light modulating materialFUJIFILM CORP·Filed 2008·Granted Jun 15, 2010·7 cites·16 claims
- 1280US7348044B2Liquid crystal composition and liquid crystal elementFUJIFILM CORP·Filed 2006·Granted Mar 25, 2008·7 cites·16 claims
- 1379US10468607B2Organic electric light emitting element, material for said element, and light emitting device, display device, and illumination device employing said elementTAKAKU KOJI·Filed 2012·Granted Nov 5, 2019·2 cites·20 claims
- 1479US9287507B2Organic electroluminescent element, compounds and materials used for the organic electroluminescent element, and light-emitting, display and illuminating devices using the elementsUDC IRELAND LTD·Filed 2013·Granted Mar 15, 2016·4 cites·19 claims
- 1579US7338690B2Liquid crystal composition and liquid crystal deviceFUJIFILM CORP·Filed 2005·Granted Mar 4, 2008·7 cites·24 claims
- 1677US9508934B2Organic film transistor, organic semiconductor film, and organic semiconductor material and use applications thereofFUJIFILM CORP·Filed 2016·Granted Nov 29, 2016·1 cites·35 claims
- 1777US9397303B2Organic electroluminescent element, material for said element, and light-emitting device, display device, and illumination device using said elementTAKADA SAKI·Filed 2012·Granted Jul 19, 2016·3 cites·26 claims
- 1876US7871539B2Liquid crystal composition, liquid crystal element, reflective display material, light-controlling material, and method of preparing liquid crystal compositionFUJIFILM CORP·Filed 2008·Granted Jan 18, 2011·5 cites·12 claims
- 1974US9812650B2Organic electroluminescent element, compound and material for organic electroluminescent element, used in the same, and light emitting device, display device and illumination device, using the elementUDC IRELAND LTD·Filed 2012·Granted Nov 7, 2017·2 cites·20 claims
- 2074US7402331B2Liquid crystal elementFUJIFILM CORP·Filed 2006·Granted Jul 22, 2008·2 cites·19 claims
- 2173US7316829B2Liquid crystal composition and display deviceFUJIFILM CORP·Filed 2006·Granted Jan 8, 2008·4 cites·20 claims
- 2272US9412963B2Organic electroluminescent element, material for organic electroluminescent element, and light emitting device, display device and illumination device each using the elementUDC IRELAND LTD·Filed 2012·Granted Aug 9, 2016·1 cites·18 claims
- 2372US7427364B2Liquid crystal composition, liquid crystal element, and cross-linked siloxane polymerFUJIFILM CORP·Filed 2006·Granted Sep 23, 2008·3 cites·17 claims
- 2472US6107016ASilver halide color photographic lightsensitive materialFUJI PHOTO FILM CO LTD·Filed 1999·Granted Aug 22, 2000·6 cites·21 claims
- 2570US9876175B2Organic electroluminescent element, material for organic electroluminescent element, and light emitting device, display device and lighting device each using organic electroluminscent elementTAKAKU KOJI·Filed 2012·Granted Jan 23, 2018·2 cites·16 claims
- 2670US7722784B2Liquid crystal composition, liquid crystal device, reflection display material, light modulating material, and anthraquinone compoundFUJIFILM CORP·Filed 2008·Granted May 25, 2010·2 cites·15 claims
- 2769US8426626B2Compound having asymmetric carbon atom, oxidation-reduction reaction causing portion, and liquid crystal substituentTAKAKU KOJI·Filed 2009·Granted Apr 23, 2013·1 cites·6 claims
- 2867US12404264B2Organic electric light emitting element, material for said element, and light emitting device, display device, and illumination device employing said elementUDC IRELAND LTD·Filed 2019·Granted Sep 2, 2025·0 cites·16 claims
- 2967US2022077413A1Organoelectroluminescent Element, and Light Emission Device, Display Device, and Illumination Device in which Said Organoelectroluminescent Element is UsedUDC IRELAND LTD·Filed 2021·Application pending·0 cites
- 3066US11177450B2Organoelectroluminescent element, and light emission device, display device, and illumination device in which said organoelectroluminescent element is usedHAYASHI NAOYUKI·Filed 2012·Granted Nov 16, 2021·1 cites·2 claims
- 3166US9647214B2Organic electroluminescent element, compound for organic electroluminescent element, and light-emitting device, display device, and illumination device using said elementTAKADA SAKI·Filed 2012·Granted May 9, 2017·1 cites·17 claims
- 3266US9601705B2Material for organic electroluminescence element and organic electroluminescence element using the same, and method for manufacturing organic electroluminescence elementTAKAKU KOJI·Filed 2011·Granted Mar 21, 2017·1 cites·11 claims
- 3366US7780870B2Liquid crystal composition, liquid crystal element, and siloxane polymerFUJIFILM CORP·Filed 2006·Granted Aug 24, 2010·2 cites·21 claims
- 3466US7396573B2Liquid crystal display element and light-modulating materialFUJIFILM CORP·Filed 2006·Granted Jul 8, 2008·2 cites·16 claims
- 3565US11844229B2Electroluminescent element, and light emitting device, display device and lighting device each using organic electroluminescent elementUDC IRELAND LTD·Filed 2020·Granted Dec 12, 2023·0 cites·16 claims
- 3665US11428669B2Resonant sensorFUJIFILM CORP·Filed 2020·Granted Aug 30, 2022·0 cites·20 claims
- 3764US11744144B2Organic electroluminescent element, light-emitting material therefor, light emitting device, display device, and illumination deviceUDC IRELAND LTD·Filed 2019·Granted Aug 29, 2023·0 cites·16 claims
- 3864US7718086B2Dichroic dye, and liquid crystal composition and liquid crystal device using the sameFUJIFILM CORP·Filed 2007·Granted May 18, 2010·1 cites·17 claims
- 3963US9627623B2Organic electroluminescent element, compound, and light emitting device, display device and lighting device each using organic electroluminescent elementTAKAKU KOJI·Filed 2012·Granted Apr 18, 2017·1 cites·17 claims
- 4063US8361567B2Liquid crystal composition, liquid crystal device, reflective display material, and light modulating materialFUJIFILM CORP·Filed 2009·Granted Jan 29, 2013·1 cites·18 claims
- 4162US2023258569A1Reagent for measuring skin sensitization, compound, and method for measuring skin sensitizationFUJIFILM CORP·Filed 2023·Application pending·0 cites
- 4261US10903428B2Organic electroluminescent element, compound and material for organic electroluminescent element capable of being used therefor, light emitting device, display device, and illumination device, each using the elementUDC IRELAND LTD·Filed 2016·Granted Jan 26, 2021·0 cites·35 claims
- 4360US10718735B2Gas detection method, gas detection system, and gas desorption methodFUJIFILM CORP·Filed 2019·Granted Jul 21, 2020·0 cites·16 claims
- 4459US9714253B2Organic thin film transistor, organic semiconductor thin film, and organic semiconductor materialFUJIFILM CORP·Filed 2015·Granted Jul 25, 2017·1 cites·11 claims
- 4557US11596602B2Biocompatible materialFUJIFILM CORP·Filed 2021·Granted Mar 7, 2023·0 cites·22 claims
- 4654US2015084016A1Organic electroluminescent element, light-emitting material therefor, light emitting device, display device, and illumination deviceUDC IRELAND LTD·Filed 2012·Application pending·0 cites
- 4753US2014203252A1Organic electroluminescent element, material for organic electroluminescent element, and ligth emitting device, display device and lighting device each using organic electroluminescent elementKITAMURA TETSU·Filed 2012·Application pending·0 cites
- 4853US2013126835A1Organic Electroluminescent Element, Compound for Use in the Element, and Light Emitting Device, Display Device, and Illumination Device Using the ElementUDC IRELAND LTD·Filed 2012·Application pending·0 cites
- 4952US7307182B22,3-dicyanohydroquinone derivative and uses of the sameFUJIFILM CORP·Filed 2006·Granted Dec 11, 2007·0 cites·4 claims
- 5051US11563178B2Organic electroluminescent element, compound for use in the element, and light emitting device, display device, and illumination device using the elementUDC IRELAND LTD·Filed 2017·Granted Jan 24, 2023·0 cites·11 claims
Showing the top 50 of 79 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →