Inventor · disambiguated record
Wataru Sotoyama
Also filed as: SOTOYAMA WATARU
66 granted patents·24 pending applications·1,234 citations·filing 1992–2024
99Inventor score
Files withFUJITSU LTD24FUJIFILM CORP17UDC IRELAND LTD16SAMSUNG ELECTRONICS CO LTD15FUJI PHOTO FILM CO LTD5
Top patents by PatentIndex Score
90 records- 0195US5835646AActive optical circuit sheet or active optical circuit board, active optical connector and optical MCM, process for fabricating optical waveguide, and devices obtained therebyFUJITSU LTD·Filed 1996·Granted Nov 10, 1998·193 cites·9 claims
- 0294US6805977B2Condensed eight-ring aromatic compound, and organic EL element and organic EL display using the sameFUJITSU LTD·Filed 2002·Granted Oct 19, 2004·35 cites·31 claims
- 0394US5854868AOptical device and light waveguide integrated circuitFUJITSU LTD·Filed 1996·Granted Dec 29, 1998·134 cites·15 claims
- 0493US7276617B2Organometallic complex, luminescent solid, organic EL element and organic EL displayFUJIFILM CORP·Filed 2006·Granted Oct 2, 2007·24 cites·13 claims
- 0593US6693736B1Optical circuit system and components of sameFUJITSU LTD·Filed 2000·Granted Feb 17, 2004·61 cites·7 claims
- 0692US7571894B2Organic electroluminescence elementFUJI PHOTO FILM CO LTD·Filed 2005·Granted Aug 11, 2009·12 cites·16 claims
- 0792US5917980AOptical circuit device, its manufacturing process and a multilayer optical circuit using said optical circuit deviceFUJITSU LTD·Filed 1993·Granted Jun 29, 1999·98 cites·21 claims
- 0890US9586972B2Organic thin film transistor, organic semiconductor thin film, and organic semiconductor materialFUJIFILM CORP·Filed 2015·Granted Mar 7, 2017·7 cites·15 claims
- 0990US6940092B2Electrically conducting organic compound and electronic deviceFUJITSU LTD·Filed 2002·Granted Sep 6, 2005·35 cites·12 claims
- 1087US6215585B1Optical circuit system and components of same technical fieldFUJITSU LTD·Filed 1998·Granted Apr 10, 2001·80 cites·14 claims
- 1187US5757989AOptical circuit system capable of producing optical signal having a small fluctuation and components of sameFUJITSU LTD·Filed 1993·Granted May 26, 1998·80 cites·7 claims
- 1286US7060370B2Organic EL element and organic EL displayFUJI PHOTO FILM CO LTD·Filed 2002·Granted Jun 13, 2006·36 cites·15 claims
- 1385US9728726B2Organic 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
- 1485US9447111B2Organic thin film transistor, organic semiconductor thin film, and organic semiconductor materialFUJIFILM CORP·Filed 2015·Granted Sep 20, 2016·5 cites·14 claims
- 1585US9412964B2Organic electroluminescent elementUDC IRELAND LTD·Filed 2013·Granted Aug 9, 2016·5 cites·14 claims
- 1684US10297760B2Organic 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
- 1784US8294361B2Organic electric field light-emitting elementMASUI KENSUKE·Filed 2011·Granted Oct 23, 2012·9 cites·6 claims
- 1884US7612500B2Organic electroluminescence deviceFUJIFILM CORP·Filed 2006·Granted Nov 3, 2009·7 cites·14 claims
- 1983US9525139B2Materials 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
- 2083US5444811AOrganic functional optical thin film, fabrication and use thereofFUJITSU LTD·Filed 1992·Granted Aug 22, 1995·46 cites·88 claims
- 2182US9735368B2Organic electroluminescent devicesUDC IRELAND LTD·Filed 2013·Granted Aug 15, 2017·4 cites·12 claims
- 2281US7635948B2Light emitting apparatus and light emitting methodFUJIFILM CORP·Filed 2006·Granted Dec 22, 2009·6 cites·20 claims
- 2381US6081632AMethod of producing optical waveguide system, optical device and optical coupler employing the same, optical network and optical circuit boardFUJITSU LTD·Filed 1997·Granted Jun 27, 2000·141 cites·25 claims
- 2479US10468607B2Organic 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
- 2579US10283718B2Charge transporting material, organic electroluminescent element, light emitting device, display device and illumination deviceUDC IRELAND LTD·Filed 2013·Granted May 7, 2019·2 cites·13 claims
- 2679US2025089552A1Composition and organic light-emitting device including the sameSAMSUNG ELECTRONICS CO LTD·Filed 2024·Application pending·0 cites
- 2778US6783872B2Dinaphtopyrene compound, and organic EL element and organic EL display using the sameFUJITSU LTD·Filed 2002·Granted Aug 31, 2004·8 cites·28 claims
- 2877US9397303B2Organic 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
- 2975US10882877B2Organometallic compound, organic light-emitting device including the organometallic compound, and diagnostic compositions including the organometallic compoundSAMSUNG ELECTRONICS CO LTD·Filed 2018·Granted Jan 5, 2021·1 cites·20 claims
- 3075US7326476B2Fluorescent material, organic electroluminescent element and organic electroluminescent displayFUJI PHOTO FILM CO LTD·Filed 2004·Granted Feb 5, 2008·8 cites·30 claims
- 3175US5659010ANonlinear optical material, process of production of same, and nonlinear optical device and directional coupling type optical switch using sameFUJITSU LTD·Filed 1995·Granted Aug 19, 1997·21 cites·13 claims
- 3274US9812650B2Organic 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
- 3374US5459232ANonlinear optical material, process of production of same, and nonlinear optical device and directional coupling type optical switch using sameFUJITSU LTD·Filed 1993·Granted Oct 17, 1995·15 cites·2 claims
- 3473US5594093ANonlinear optical material and nonlinear optical device and directional coupling type optical switch using sameFUJITSU LTD·Filed 1995·Granted Jan 14, 1997·25 cites·6 claims
- 3572US9412963B2Organic 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
- 3672US8187729B2Organic electroluminescence deviceMURAKAMI TAKESHI·Filed 2008·Granted May 29, 2012·3 cites·6 claims
- 3771US6773832B2Organic electroluminescent element and organic electroluminescence display using the sameFUJITSU LTD·Filed 2003·Granted Aug 10, 2004·26 cites·14 claims
- 3870US9876175B2Organic 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
- 3968US9257661B2Light emitting deviceNAYA MASAYUKI·Filed 2010·Granted Feb 9, 2016·2 cites·6 claims
- 4068US5818983AOptical integrated circuit, optical circuit waveguide device and process for oriented, selective growth and formation of organic filmFUJITSU LTD·Filed 1996·Granted Oct 6, 1998·37 cites·50 claims
- 4167US12404264B2Organic 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
- 4267US12178117B2Composition and organic light-emitting device including the sameSAMSUNG ELECTRONICS CO LTD·Filed 2021·Granted Dec 24, 2024·0 cites·20 claims
- 4367US10505116B2Organic electroluminescent element and compoundWATANABE KOUSUKE·Filed 2011·Granted Dec 10, 2019·1 cites·13 claims
- 4465US11844229B2Electroluminescent 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
- 4565US6338975B1Optical circuit device, its manufacturing process and a multilayer optical circuit using said optical circuit deviceFUJITSU LTD·Filed 1999·Granted Jan 15, 2002·26 cites·43 claims
- 4664US11744144B2Organic 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
- 4761US10903428B2Organic 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
- 4859US9714253B2Organic thin film transistor, organic semiconductor thin film, and organic semiconductor materialFUJIFILM CORP·Filed 2015·Granted Jul 25, 2017·1 cites·11 claims
- 4956US2009121620A1Organometallic complex, organic el element and organic el displayFUJI PHOTO FILM CO LTD·Filed 2008·Application pending·0 cites
- 5055US2023126543A1Heterocyclic compound, organic light-emitting device including the same, and electronic apparatus including the organic light-emitting deviceSAMSUNG ELECTRONICS CO LTD·Filed 2022·Application pending·0 cites
Showing the top 50 of 90 patent records by PatentIndex Score.
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