Inventor
SAKAI MITSUHIKO
JP28 patents
⚠️ This page may combine multiple inventors who share the name “SAKAI MITSUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO ELECTRIC INDUSTRIES
12 patentsUS10192960B2Jan 29, 2019
Silicon carbide semiconductor device and method for manufacturing same
SUMITOMO ELECTRIC INDUSTRIES8 citations84
US9799506B2Oct 24, 2017
Breakdown voltage measuring method and method for manufacturing semiconductor device
SUMITOMO ELECTRIC INDUSTRIES2 citations73
US9640619B2May 2, 2017
Methods of manufacturing wide band gap semiconductor device and semiconductor module, and wide band gap semiconductor device and semiconductor module
SUMITOMO ELECTRIC INDUSTRIES2 citations73
US9607905B2Mar 28, 2017
Method of measuring breakdown voltage of semiconductor element and method of manufacturing semiconductor element
SUMITOMO ELECTRIC INDUSTRIES2 citations73
US12057416B2Aug 6, 2024
Semiconductor device with metal film on surface between passivation film and copper film
SUMITOMO ELECTRIC INDUSTRIES0 citations62
US9224816B2Dec 29, 2015
Silicon carbide semiconductor device
SUMITOMO ELECTRIC INDUSTRIES3 citations62
US9831126B2Nov 28, 2017
Method of manufacturing semiconductor device, semiconductor substrate, and semiconductor device
SUMITOMO ELECTRIC INDUSTRIES0 citations52
US9647081B2May 9, 2017
Method for manufacturing silicon carbide semiconductor device
SUMITOMO ELECTRIC INDUSTRIES0 citations52
US11916029B2Feb 27, 2024
Semiconductor device
SUMITOMO ELECTRIC INDUSTRIES0 citations51
US9397155B2Jul 19, 2016
Silicon carbide semiconductor device
SUMITOMO ELECTRIC INDUSTRIES0 citations51
US10608107B2Mar 31, 2020
Silicon carbide semiconductor device
SUMITOMO ELECTRIC INDUSTRIES0 citations42
US10056247B2Aug 21, 2018
Method of manufacturing silicon carbide semiconductor device
SUMITOMO ELECTRIC INDUSTRIES0 citations41
ROHM CO LTD
11 patentsUS7375380B2May 20, 2008
Semiconductor light emitting device
ROHM CO LTD43 citations91
US7786502B2Aug 31, 2010
Nitride semiconductor light-emitting device and method of manufacturing the same
ROHM CO LTD12 citations84
US10032961B2Jul 24, 2018
Semiconductor light emitting device
ROHM CO LTD3 citations83
US9450145B2Sep 20, 2016
Semiconductor light emitting device
ROHM CO LTD5 citations83
US9196808B2Nov 24, 2015
Semiconductor light emitting device
ROHM CO LTD6 citations83
US9018650B2Apr 28, 2015
Semiconductor light emitting device
ROHM CO LTD5 citations83
US8039864B2Oct 18, 2011
Semiconductor light emitting device and fabrication method for the same
ROHM CO LTD7 citations83
US7781791B2Aug 24, 2010
Semiconductor light emitting element
ROHM CO LTD19 citations83
US11616172B2Mar 28, 2023
Semiconductor light emitting device with frosted semiconductor layer
ROHM CO LTD0 citations61
US10483435B2Nov 19, 2019
Semiconductor light emitting device
ROHM CO LTD0 citations51
US9786819B2Oct 10, 2017
Semiconductor light emitting device
ROHM CO LTD0 citations51