Inventor
OTA CHIHARU
JP44 patents
⚠️ This page may combine multiple inventors who share the name “OTA CHIHARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA KK
38 patentsUS7977210B2Jul 12, 2011
Semiconductor substrate and semiconductor device
TOSHIBA KK16 citations84
US7777292B2Aug 17, 2010
Semiconductor device
TOSHIBA KK12 citations84
US7508045B2Mar 24, 2009
SiC Schottky barrier semiconductor device
TOSHIBA KK8 citations84
US11621167B2Apr 4, 2023
Semiconductor device, method for manufacturing semiconductor device, inverter circuit, drive device, vehicle, and elevator
TOSHIBA KK1 citations73
US11469301B2Oct 11, 2022
Semiconductor device, semiconductor device manufacturing method, inverter circuit, driver device, vehicle, and elevator
TOSHIBA KK4 citations73
US11239079B2Feb 1, 2022
Semiconductor device, method for manufacturing semiconductor device, inverter circuit, drive device, vehicle, and elevator
TOSHIBA KK2 citations73
US10651280B2May 12, 2020
Silicon carbide semiconductor device
TOSHIBA KK2 citations73
US9559172B2Jan 31, 2017
Semiconductor device and method of manufacturing the same
TOSHIBA KK2 citations73
US9373686B2Jun 21, 2016
Semiconductor device and method for manufacturing same and semiconductor substrate
TOSHIBA KK2 citations63
US9324787B2Apr 26, 2016
Semiconductor device
TOSHIBA KK2 citations63
US9184229B2Nov 10, 2015
Semiconductor device and method for manufacturing same
TOSHIBA KK3 citations63
US9093362B2Jul 28, 2015
Semiconductor device and method of manufacturing the same
TOSHIBA KK2 citations63
US8933464B2Jan 13, 2015
SiC epitaxial wafer and semiconductor device
TOSHIBA KK3 citations63
US8012837B2Sep 6, 2011
Method of manufacturing semiconductor device
TOSHIBA KK4 citations63
US7947988B2May 24, 2011
Semiconductor device and method of manufacturing the same
TOSHIBA KK3 citations63
US12148799B2Nov 19, 2024
Semiconductor device, method for manufacturing semiconductor device, inverter circuit, drive device, vehicle, and elevator
TOSHIBA KK0 citations62
US11848211B2Dec 19, 2023
Semiconductor device, method for manufacturing semiconductor device, inverter circuit, drive device, vehicle, and elevator
TOSHIBA KK0 citations62
US11764269B2Sep 19, 2023
Semiconductor device, semiconductor device manufacturing method, inverter circuit, driver device, vehicle, and elevator
TOSHIBA KK0 citations62
US11764270B2Sep 19, 2023
Semiconductor device, method for manufacturing semiconductor device, inverter circuit, drive device, vehicle, and elevator
TOSHIBA KK0 citations62
US11443946B2Sep 13, 2022
Method for manufacturing silicon carbide base body, method for manufacturing semiconductor device, silicon carbide base body, and semiconductor device
TOSHIBA KK0 citations62
US11152470B2Oct 19, 2021
Method for manufacturing semiconductor device, method for manufacturing substrate, semiconductor device, substrate, and manufacturing apparatus of substrate
TOSHIBA KK1 citations62
US12406844B2Sep 2, 2025
Wafer having a silicon carbide crystal layer with stacking faults provided on a silicon carbide base body and semiconductor device manufactured using the wafer
TOSHIBA KK0 citations52
US11973116B2Apr 30, 2024
Semiconductor device
TOSHIBA KK0 citations52
US11424326B2Aug 23, 2022
Semiconductor device
TOSHIBA KK0 citations52
US10998401B2May 4, 2021
Semiconductor device having a base body of silicon carbide
TOSHIBA KK0 citations52
US10079282B2Sep 18, 2018
Semiconductor device and method of manufacturing the same
TOSHIBA KK1 citations52
US9653553B2May 16, 2017
Semiconductor substrate, semiconductor device and method of manufacturing semiconductor device
TOSHIBA KK1 citations52
US9484415B2Nov 1, 2016
Semiconductor device and method for manufacturing the same
TOSHIBA KK0 citations52
US9412823B2Aug 9, 2016
Semiconductor device and method of manufacturing the same
TOSHIBA KK1 citations52
US9318324B2Apr 19, 2016
Manufacturing method of SiC epitaxial substrate, manufacturing method of semiconductor device, and semiconductor device
TOSHIBA KK0 citations52
US9236434B2Jan 12, 2016
Semiconductor device and manufacturing method thereof
TOSHIBA KK0 citations52
US9171908B2Oct 27, 2015
SiC semiconductor device and method of manufacturing the same
TOSHIBA KK0 citations52
US9111844B2Aug 18, 2015
Semiconductor device having silicon carbide epitaxial layers and method of manufacturing the same
TOSHIBA KK1 citations52
US9012923B2Apr 21, 2015
Semiconductor device
TOSHIBA KK1 citations52
US11749722B2Sep 5, 2023
Semiconductor device
TOSHIBA KK0 citations44
US10629687B2Apr 21, 2020
Silicon carbide semiconductor device
TOSHIBA KK0 citations42
US8933465B2Jan 13, 2015
Semiconductor device
TOSHIBA KK0 citations42
US9281365B2Mar 8, 2016
Semiconductor device and method for manufacturing the same
TOSHIBA KK0 citations38