Inventor · disambiguated record
Ryohei Yamashita
Also filed as: YAMASHITA RYOHEI
54 granted patents·3 pending applications·164 citations·filing 2003–2023
98Inventor score
Files withNICHIA CORP37HITACHI CONSTRUCTION MACH CO10YAMASHITA RYOHEI5HITACHI CONSTRUCTION MACHINERY1IIDA DENKI KOGYO KK1
Top patents by PatentIndex Score
57 records- 0198US11106082B2Light-emitting module and surface-emitting light sourceNICHIA CORP·Filed 2020·Granted Aug 31, 2021·4 cites·20 claims
- 0297US7710016B2Light emitting device provided with lens for controlling light distribution characteristicNICHIA CORP·Filed 2006·Granted May 4, 2010·53 cites·11 claims
- 0393US11415741B2Surface light sourceNICHIA CORP·Filed 2021·Granted Aug 16, 2022·2 cites·9 claims
- 0490US10309079B2Hydraulic control system for work machineHITACHI CONSTRUCTION MACH CO·Filed 2015·Granted Jun 4, 2019·5 cites·4 claims
- 0590US8558446B2Light emitting device provided with lens for controlling light distribution characteristicMIKI TOMOHIDE·Filed 2009·Granted Oct 15, 2013·21 cites·50 claims
- 0688US10884290B2Light emittng moduleNICHIA CORP·Filed 2020·Granted Jan 5, 2021·2 cites·28 claims
- 0788US9117806B2Light emitting device mount, light emitting apparatus including the same, and leadframeNICHIA CORP·Filed 2014·Granted Aug 25, 2015·7 cites·11 claims
- 0887US11934003B2Planar light sourceNICHIA CORP·Filed 2022·Granted Mar 19, 2024·1 cites·20 claims
- 0986US11506934B2Light-emitting device and planar light sourceNICHIA CORP·Filed 2021·Granted Nov 22, 2022·1 cites·20 claims
- 1085US9287480B2Light emitting device mount and light emitting apparatusNICHIA CORP·Filed 2015·Granted Mar 15, 2016·4 cites·28 claims
- 1184US10472804B2Hydraulic control system of construction machineHITACHI CONSTRUCTION MACH CO·Filed 2016·Granted Nov 12, 2019·5 cites·4 claims
- 1284US10069056B2Light emitting deviceNICHIA CORP·Filed 2017·Granted Sep 4, 2018·3 cites·16 claims
- 1383US11508881B2Light emitting module and method of manufacturing the sameNICHIA CORP·Filed 2021·Granted Nov 22, 2022·1 cites·20 claims
- 1483US11380826B2Light emitting moduleNICHIA CORP·Filed 2019·Granted Jul 5, 2022·1 cites·12 claims
- 1583US10115876B2Light emitting device mount, leadframe, and light emitting apparatusNICHIA CORP·Filed 2017·Granted Oct 30, 2018·3 cites·26 claims
- 1683US9812627B2Light emitting deviceNICHIA CORP·Filed 2017·Granted Nov 7, 2017·3 cites·15 claims
- 1782US10768353B2Method of manufacturing light emitting module and light emitting moduleNICHIA CORP·Filed 2018·Granted Sep 8, 2020·3 cites·12 claims
- 1882US10364550B2Hydraulic drive system of work machineHITACHI CONSTRUCTION MACH CO·Filed 2016·Granted Jul 30, 2019·3 cites·5 claims
- 1980US10330128B2Hydraulic control system for work machineHITACHI CONSTRUCTION MACH CO·Filed 2015·Granted Jun 25, 2019·4 cites·5 claims
- 2079US11346081B2Construction machineHITACHI CONSTRUCTION MACH CO·Filed 2018·Granted May 31, 2022·2 cites·3 claims
- 2175US6973911B2Method and device for controlling ignition timing of ignition device for internal combustion engineIIDA DENKI KOGYO KK·Filed 2003·Granted Dec 13, 2005·14 cites·22 claims
- 2273US12284852B2Light emitting moduleNICHIA CORP·Filed 2022·Granted Apr 22, 2025·0 cites·13 claims
- 2373US12117691B2Method of producing light-emitting device and planar light sourceNICHIA CORP·Filed 2022·Granted Oct 15, 2024·0 cites·14 claims
- 2472US11650365B2Surface light sourceNICHIA CORP·Filed 2022·Granted May 16, 2023·0 cites·20 claims
- 2570US11719975B2Light-emitting module and surface-emitting light sourceNICHIA CORP·Filed 2021·Granted Aug 8, 2023·0 cites·20 claims
- 2668US11391878B2Light emitting moduleNICHIA CORP·Filed 2021·Granted Jul 19, 2022·0 cites·20 claims
- 2768US11106077B2Light emitting module and method of manufacturing the sameNICHIA CORP·Filed 2019·Granted Aug 31, 2021·1 cites·22 claims
- 2868US9093619B2Light emitting device provided with lens for controlling light distribution characteristicNICHIA CORP·Filed 2014·Granted Jul 28, 2015·1 cites·18 claims
- 2967US12189175B2Planar light sourceNICHIA CORP·Filed 2023·Granted Jan 7, 2025·0 cites·20 claims
- 3067US7479665B2Side-view type light emitting deviceNICHIA CORP·Filed 2006·Granted Jan 20, 2009·4 cites·12 claims
- 3166US11513389B2Light emitting moduleNICHIA CORP·Filed 2020·Granted Nov 29, 2022·0 cites·16 claims
- 3266US9691689B2Lead frame for mounting semiconductor element and method for manufacturing the sameSH MATERIALS CO LTD·Filed 2014·Granted Jun 27, 2017·3 cites·10 claims
- 3366US8836210B2Light emitting device provided with lens for controlling light distribution characteristicNICHIA CORP·Filed 2013·Granted Sep 16, 2014·1 cites·18 claims
- 3465US11143807B2Method of manufacturing light emitting module and light emitting moduleNICHIA CORP·Filed 2020·Granted Oct 12, 2021·0 cites·26 claims
- 3565US9461207B2Light emitting device, and package array for light emitting deviceYAMASHITA RYOHEI·Filed 2011·Granted Oct 4, 2016·2 cites·15 claims
- 3664US10400426B2Hydraulic control system for construction machineHITACHI CONSTRUCTION MACH CO·Filed 2015·Granted Sep 3, 2019·1 cites·4 claims
- 3763US11061178B2Light emitting moduleNICHIA CORP·Filed 2020·Granted Jul 13, 2021·0 cites·18 claims
- 3862US7108399B2Light source unitNORITSU KOKI CO LTD·Filed 2004·Granted Sep 19, 2006·8 cites·5 claims
- 3961US10060450B2Hydraulic control device for work machineHITACHI CONSTRUCTION MACH CO·Filed 2013·Granted Aug 28, 2018·1 cites·7 claims
- 4059US10374136B2Light emitting apparatusNICHIA CORP·Filed 2018·Granted Aug 6, 2019·0 cites·11 claims
- 4157US11493803B2Display device and light-diffusing sheet stacked bodyNICHIA CORP·Filed 2021·Granted Nov 8, 2022·0 cites·12 claims
- 4257US10971657B2Light emitting module and method of manufacturing the sameNICHIA CORP·Filed 2019·Granted Apr 6, 2021·0 cites·13 claims
- 4357US10411178B2Light emitting deviceNICHIA CORP·Filed 2018·Granted Sep 10, 2019·0 cites·6 claims
- 4456US11035994B2Light-emitting moduleNICHIA CORP·Filed 2019·Granted Jun 15, 2021·0 cites·20 claims
- 4555US2024125091A1Construction MachineHITACHI CONSTRUCTION MACH CO·Filed 2021·Application pending·0 cites
- 4655US2024052600A1Construction machineHITACHI CONSTRUCTION MACH CO·Filed 2021·Application pending·0 cites
- 4754US9615493B2Light emitting device, and method for manufacturing circuit boardNICHIA CORP·Filed 2014·Granted Apr 4, 2017·0 cites·18 claims
- 4853US9583688B2Light emitting device mount, leadframe, and light emitting apparatusNICHIA CORP·Filed 2016·Granted Feb 28, 2017·0 cites·21 claims
- 4950US8853933B2Light emitting device, and method for manufacturing circuit boardYAMASHITA RYOHEI·Filed 2011·Granted Oct 7, 2014·0 cites·15 claims
- 5048US10209566B2Light-emitting deviceNICHIA CORP·Filed 2018·Granted Feb 19, 2019·0 cites·10 claims
Showing the top 50 of 57 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →