Inventor
SUMITOMO MASAKIYO
JP21 patents
⚠️ This page may combine multiple inventors who share the name “SUMITOMO MASAKIYO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DENSO CORP
15 patentsUS10388773B2Aug 20, 2019
Semiconductor device and manufacturing method of the same
DENSO CORP8 citations84
US9515067B2Dec 6, 2016
Semiconductor device having switching element and free wheel diode and method for controlling the same
DENSO CORP9 citations83
US9324848B2Apr 26, 2016
Semiconductor device
DENSO CORP9 citations83
US9231090B2Jan 5, 2016
Trench-gate-type insulated gate bipolar transistor
DENSO CORP4 citations73
US10186606B2Jan 22, 2019
Semiconductor device
DENSO CORP3 citations72
US8384153B2Feb 26, 2013
Semiconductor device and manufacturing method of the same
DENSO CORP5 citations72
US10763345B2Sep 1, 2020
Semiconductor device
DENSO CORP5 citations70
US10720518B2Jul 21, 2020
Semiconductor device
DENSO CORP1 citations62
US10103255B2Oct 16, 2018
Semiconductor device
DENSO CORP1 citations52
US11289476B2Mar 29, 2022
Semiconductor device including carrier injection layers
DENSO CORP0 citations49
US12283593B2Apr 22, 2025
Semiconductor device
DENSO CORP0 citations44
US12414358B2Sep 9, 2025
Semiconductor device
DENSO CORP0 citations43
US10748988B2Aug 18, 2020
Semiconductor device
DENSO CORP0 citations41
US10848078B2Nov 24, 2020
Power converter with switching elements, control circuit having speed adjustment resistor, and feedback route
DENSO CORP0 citations40
US10224322B2Mar 5, 2019
Semiconductor device
DENSO CORP0 citations35
SUMITOMO MASAKIYO
3 patentsUS8278731B2Oct 2, 2012
Semiconductor device having SOI substrate and method for manufacturing the same
SUMITOMO MASAKIYO20 citations91
US8815701B2Aug 26, 2014
Method for manufacturing semiconductor device having SOI substrate
SUMITOMO MASAKIYO8 citations83
US8659065B2Feb 25, 2014
Semiconductor device and method of manufacturing the same
SUMITOMO MASAKIYO10 citations82