Inventor · disambiguated record
Keiji Emura
Also filed as: EMURA KEIJI
53 granted patents·3 pending applications·170 citations·filing 2008–2025
98Inventor score
Top patents by PatentIndex Score
56 records- 0197US9577152B2Light emitting elementNICHIA CORP·Filed 2014·Granted Feb 21, 2017·19 cites·15 claims
- 0296US11287105B2Light emitting module and planar light sourceNICHIA CORP·Filed 2021·Granted Mar 29, 2022·7 cites·20 claims
- 0396US9882093B2Light emitting elementNICHIA CORP·Filed 2017·Granted Jan 30, 2018·10 cites·17 claims
- 0494US12068437B2Light emitting elementNICHIA CORP·Filed 2023·Granted Aug 20, 2024·2 cites·31 claims
- 0594US10593840B2Light emitting elementNICHIA CORP·Filed 2019·Granted Mar 17, 2020·6 cites·19 claims
- 0694US10276751B2Light emitting elementNICHIA CORP·Filed 2017·Granted Apr 30, 2019·6 cites·19 claims
- 0794US8546840B2Semiconductor light emitting elementINOUE YOSHIKI·Filed 2012·Granted Oct 1, 2013·16 cites·21 claims
- 0894US7982236B2Semiconductor light emitting elementNICHIA CORP·Filed 2008·Granted Jul 19, 2011·25 cites·20 claims
- 0994US2025366270A1Light emitting elementNICHIA CORP·Filed 2025·Application pending·0 cites
- 1092US12414410B2Light emitting elementNICHIA CORP·Filed 2024·Granted Sep 9, 2025·0 cites·17 claims
- 1192US11520098B2Light emitting module and planar light sourceNICHIA CORP·Filed 2021·Granted Dec 6, 2022·2 cites·27 claims
- 1292US9472724B2Semiconductor light emitting elementNICHIA CORP·Filed 2015·Granted Oct 18, 2016·9 cites·15 claims
- 1392US8120057B2Semiconductor light emitting elementSANO MASAHIKO·Filed 2011·Granted Feb 21, 2012·17 cites·16 claims
- 1490US11817529B2Light emitting elementNICHIA CORP·Filed 2021·Granted Nov 14, 2023·2 cites·42 claims
- 1590US8466487B2Light emitting element with extended electrodes structureEMURA KEIJI·Filed 2011·Granted Jun 18, 2013·9 cites·12 claims
- 1689US11112555B2Light-emitting module with a plurality of light guide plates and a gap thereinNICHIA CORP·Filed 2020·Granted Sep 7, 2021·2 cites·6 claims
- 1786US11506934B2Light-emitting device and planar light sourceNICHIA CORP·Filed 2021·Granted Nov 22, 2022·1 cites·20 claims
- 1885US11740401B2Method of manufacturing light emitting moduleNICHIA CORP·Filed 2021·Granted Aug 29, 2023·1 cites·30 claims
- 1984US10923632B2Light emitting element and light emitting deviceNICHIA CORP·Filed 2020·Granted Feb 16, 2021·1 cites·43 claims
- 2083US11063183B2Light emitting elementNICHIA CORP·Filed 2016·Granted Jul 13, 2021·2 cites·14 claims
- 2182US8592954B2Semiconductor element and method of manufacturing the semiconductor elementEMURA KEIJI·Filed 2011·Granted Nov 26, 2013·7 cites·12 claims
- 2281US9929316B2Light emitting elementNICHIA CORP·Filed 2016·Granted Mar 27, 2018·4 cites·20 claims
- 2381US9041039B2Semiconductor light emitting elementNICHIA CORP·Filed 2014·Granted May 26, 2015·5 cites·28 claims
- 2480USRE50614ESemiconductor light emitting elementNICHIA CORP·Filed 2022·Granted Sep 30, 2025·0 cites·39 claims
- 2577US9608170B2Method of manufacturing light emitting elementNICHIA CORP·Filed 2016·Granted Mar 28, 2017·2 cites·24 claims
- 2677US2025113674A1Light-emitting device and planar light source that utilizes multiple wavelength conversion layersNICHIA CORP·Filed 2024·Application pending·0 cites
- 2774US10644203B2Light emitting element and light emitting deviceNICHIA CORP·Filed 2019·Granted May 5, 2020·1 cites·27 claims
- 2873US12117691B2Method of producing light-emitting device and planar light sourceNICHIA CORP·Filed 2022·Granted Oct 15, 2024·0 cites·14 claims
- 2973US11393954B2Light emitting element and light emitting deviceNICHIA CORP·Filed 2020·Granted Jul 19, 2022·0 cites·32 claims
- 3072US11703714B2Light-emitting module, surface light source, and liquid-crystal display deviceNICHIA CORP·Filed 2022·Granted Jul 18, 2023·0 cites·20 claims
- 3171US11892670B2Light emitting module and planar light sourceNICHIA CORP·Filed 2022·Granted Feb 6, 2024·0 cites·22 claims
- 3271US11808968B2Planar light sourceNICHIA CORP·Filed 2022·Granted Nov 7, 2023·0 cites·13 claims
- 3371US10978617B2Light emitting elementNICHIA CORP·Filed 2020·Granted Apr 13, 2021·0 cites·20 claims
- 3468US9786812B2Light emitting element and light emitting deviceNICHIA CORP·Filed 2016·Granted Oct 10, 2017·1 cites·18 claims
- 3568US2025212583A1Light-emitting module and planar light sourceNICHIA CORP·Filed 2024·Application pending·0 cites
- 3667US11506932B2Light-emitting module, surface light source, and liquid-crystal display deviceNICHIA CORP·Filed 2021·Granted Nov 22, 2022·0 cites·16 claims
- 3766US12206052B2Light-emitting device and planar light source that utilizes multiple wavelength conversion layersNICHIA CORP·Filed 2021·Granted Jan 21, 2025·0 cites·18 claims
- 3865USRE49406ESemiconductor light emitting elementNICHIA CORP·Filed 2019·Granted Jan 31, 2023·0 cites·36 claims
- 3965USD674356SLight emitting diode chipNICHIA CORP·Filed 2011·Granted Jan 15, 2013·13 cites·1 claims
- 4064US11841135B2Light emitting module and planar light sourceNICHIA CORP·Filed 2022·Granted Dec 12, 2023·0 cites·15 claims
- 4162USRE49298ESemiconductor light emitting elementNICHIA CORP·Filed 2019·Granted Nov 15, 2022·0 cites·25 claims
- 4257US12504151B2Light-emitting device and surface-emitting light sourceNICHIA CORP·Filed 2021·Granted Dec 23, 2025·0 cites·18 claims
- 4356US12068436B2Light-emitting elementNICHIA CORP·Filed 2021·Granted Aug 20, 2024·0 cites·7 claims
- 4456US12001046B2Light-emitting deviceNICHIA CORP·Filed 2021·Granted Jun 4, 2024·0 cites·20 claims
- 4555US10468556B2Light emitting element and light emitting deviceNICHIA CORP·Filed 2018·Granted Nov 5, 2019·0 cites·23 claims
- 4655US9356196B2Method of manufacturing light emitting elementNICHIA CORP·Filed 2015·Granted May 31, 2016·0 cites·21 claims
- 4753US10361340B2Light emitting element and light emitting deviceNICHIA CORP·Filed 2017·Granted Jul 23, 2019·0 cites·20 claims
- 4852US11480319B2Light emitting module and planar light sourceNICHIA CORP·Filed 2021·Granted Oct 25, 2022·0 cites·21 claims
- 4949US10074775B2Light emitting element and light emitting deviceNICHIA CORP·Filed 2016·Granted Sep 11, 2018·0 cites·24 claims
- 5047US10461219B2Light emitting elementNICHIA CORP·Filed 2018·Granted Oct 29, 2019·0 cites·18 claims
Showing the top 50 of 56 patent records by PatentIndex Score.
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