Inventor · disambiguated record
Mitsuhiko Sakai
Also filed as: SAKAI MITSUHIKO
28 granted patents·12 pending applications·187 citations·filing 2005–2023
96Inventor score
Files withSUMITOMO ELECTRIC INDUSTRIES19ROHM CO LTD14SAKAI MITSUHIKO3TAKAO MASAKAZU2ASAHARA HIROKAZU1
Top patents by PatentIndex Score
40 records- 0194US9450145B2Semiconductor light emitting deviceROHM CO LTD·Filed 2015·Granted Sep 20, 2016·5 cites·20 claims
- 0294US7375380B2Semiconductor light emitting deviceROHM CO LTD·Filed 2005·Granted May 20, 2008·43 cites·13 claims
- 0393US9196808B2Semiconductor light emitting deviceROHM CO LTD·Filed 2014·Granted Nov 24, 2015·6 cites·20 claims
- 0493US8536598B2Semiconductor light emitting device and fabrication method for the sameTAKAO MASAKAZU·Filed 2011·Granted Sep 17, 2013·8 cites·9 claims
- 0591US9018650B2Semiconductor light emitting deviceROHM CO LTD·Filed 2013·Granted Apr 28, 2015·5 cites·20 claims
- 0691US8106412B2Semiconductor light emitting device and fabrication method for the sameTAKAO MASAKAZU·Filed 2008·Granted Jan 31, 2012·16 cites·7 claims
- 0789US10192960B2Silicon carbide semiconductor device and method for manufacturing sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2014·Granted Jan 29, 2019·8 cites·16 claims
- 0889US8198645B2Semiconductor light emitting device and method for manufacturing the sameSAKAI MITSUHIKO·Filed 2006·Granted Jun 12, 2012·20 cites·6 claims
- 0989US7781791B2Semiconductor light emitting elementROHM CO LTD·Filed 2007·Granted Aug 24, 2010·19 cites·6 claims
- 1088US10032961B2Semiconductor light emitting deviceROHM CO LTD·Filed 2017·Granted Jul 24, 2018·3 cites·15 claims
- 1188US8093606B2Nitride semiconductor light emitting deviceSONOBE MASAYUKI·Filed 2006·Granted Jan 10, 2012·22 cites·8 claims
- 1286US7786502B2Nitride semiconductor light-emitting device and method of manufacturing the sameROHM CO LTD·Filed 2007·Granted Aug 31, 2010·12 cites·5 claims
- 1385US2023197906A1Semiconductor light emitting deviceROHM CO LTD·Filed 2023·Application pending·0 cites
- 1481US9224816B2Silicon carbide semiconductor deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Granted Dec 29, 2015·3 cites·15 claims
- 1579US11616172B2Semiconductor light emitting device with frosted semiconductor layerROHM CO LTD·Filed 2019·Granted Mar 28, 2023·0 cites·6 claims
- 1678US8039864B2Semiconductor light emitting device and fabrication method for the sameROHM CO LTD·Filed 2008·Granted Oct 18, 2011·7 cites·20 claims
- 1777US9607905B2Method of measuring breakdown voltage of semiconductor element and method of manufacturing semiconductor elementSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Granted Mar 28, 2017·2 cites·10 claims
- 1876US9799506B2Breakdown voltage measuring method and method for manufacturing semiconductor deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Granted Oct 24, 2017·2 cites·7 claims
- 1969US8124985B2Semiconductor light emitting device and method for manufacturing the sameSAKAI MITSUHIKO·Filed 2006·Granted Feb 28, 2012·4 cites·7 claims
- 2068US9640619B2Methods of manufacturing wide band gap semiconductor device and semiconductor module, and wide band gap semiconductor device and semiconductor moduleSUMITOMO ELECTRIC INDUSTRIES·Filed 2014·Granted May 2, 2017·2 cites·8 claims
- 2166US10483435B2Semiconductor light emitting deviceROHM CO LTD·Filed 2018·Granted Nov 19, 2019·0 cites·20 claims
- 2261US9786819B2Semiconductor light emitting deviceROHM CO LTD·Filed 2016·Granted Oct 10, 2017·0 cites·20 claims
- 2354US2019140056A1Silicon carbide semiconductor device and method for manufacturing sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2018·Application pending·0 cites
- 2453US12057416B2Semiconductor device with metal film on surface between passivation film and copper filmSUMITOMO ELECTRIC INDUSTRIES·Filed 2020·Granted Aug 6, 2024·0 cites·7 claims
- 2551US11916029B2Semiconductor deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2020·Granted Feb 27, 2024·0 cites·6 claims
- 2650US9647081B2Method for manufacturing silicon carbide semiconductor deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2014·Granted May 9, 2017·0 cites·9 claims
- 2750US9397155B2Silicon carbide semiconductor deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Granted Jul 19, 2016·0 cites·15 claims
- 2845US9831126B2Method of manufacturing semiconductor device, semiconductor substrate, and semiconductor deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Granted Nov 28, 2017·0 cites·5 claims
- 2945US2016163800A1Semiconductor device and method of manufacturing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2014·Application pending·0 cites
- 3045US2022123141A1Silicon carbide semiconductor chip and silicon carbide semiconductor deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2020·Application pending·0 cites
- 3145US2016197149A1Silicon carbide semiconductor device and method for manufacturing sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2014·Application pending·0 cites
- 3244US2009001402A1Semiconductor element and method of making the sameROHM CO LTD·Filed 2007·Application pending·0 cites
- 3343US2014070830A1Measuring device, measuring method, and element manufacturing method including measuring methodSUMITOMO ELECTRIC INDUSTRIES·Filed 2013·Application pending·0 cites
- 3442US10608107B2Silicon carbide semiconductor deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2017·Granted Mar 31, 2020·0 cites·7 claims
- 3542US2009206357A1Semiconductor Light Emitting DeviceROHM CO LTD·Filed 2006·Application pending·0 cites
- 3640US10056247B2Method of manufacturing silicon carbide semiconductor deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Granted Aug 21, 2018·0 cites·7 claims
- 3740US2019198622A1Silicon carbide semiconductor device and method for manufacturing sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2017·Application pending·0 cites
- 3840US2007102692A1Semiconductor light emitting deviceASAHARA HIROKAZU·Filed 2005·Application pending·0 cites
- 3939US2008258166A1Semiconductor Light Emitting Device and Method for Manufacturing the SameSAKAI MITSUHIKO·Filed 2005·Application pending·0 cites
- 4034US2015371901A1Method of manufacturing semiconductor deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →