Inventor

IIJIMA RYOSUKE

JP79 patents

Patents

50 patents

US10199466B1Feb 5, 2019

Semiconductor device, method for manufacturing semiconductor device, inverter circuit, driving device, vehicle, and elevator

TOSHIBA KK19 citations85

US10243038B1Mar 26, 2019

Semiconductor device, inverter circuit, drive device, vehicle, and elevator each having a threshold-voltage-increasing portion in silicon carbide layer

TOSHIBA KK2 citations73

US10651280B2May 12, 2020

Silicon carbide semiconductor device

TOSHIBA KK2 citations73

US10229994B2Mar 12, 2019

Semiconductor device

TOSHIBA KK2 citations73

US10217811B1Feb 26, 2019

Semiconductor device, method for manufacturing semiconductor device, inverter circuit, driving device, vehicle, and elevator

TOSHIBA KK3 citations73

US9941361B2Apr 10, 2018

Method for fabricating semiconductor substrate, semiconductor substrate, and semiconductor device

TOSHIBA KK5 citations73

US9812529B2Nov 7, 2017

Semiconductor device and method for manufacturing the same

TOSHIBA KK2 citations73

US9755064B2Sep 5, 2017

Semiconductor device and method for manufacturing the same

TOSHIBA KK5 citations73

US9748343B2Aug 29, 2017

Semiconductor device

TOSHIBA KK2 citations73

US9728608B2Aug 8, 2017

Semiconductor device, inverter circuit, and vehicle

TOSHIBA KK2 citations73

US9679971B2Jun 13, 2017

Semiconductor device

TOSHIBA KK3 citations73

US9825121B2Nov 21, 2017

Semiconductor device

TOSHIBA KK3 citations72

US10236339B2Mar 19, 2019

Semiconductor device

TOSHIBA KK3 citations71

US10923568B2Feb 16, 2021

Semiconductor device, inverter circuit, and vehicle

TOSHIBA KK0 citations63

US9490327B2Nov 8, 2016

Semiconductor device and method of manufacturing the same

TOSHIBA KK2 citations63

US7932150B2Apr 26, 2011

Lateral oxidation with high-K dielectric liner

TOSHIBA KK6 citations63

US12477809B2Nov 18, 2025

Semiconductor device and method for manufacturing semiconductor device

TOSHIBA KK0 citations62

US11374122B2Jun 28, 2022

Semiconductor device, inverter circuit, drive device, vehicle, and elevating machine

TOSHIBA KK1 citations62

US11276758B2Mar 15, 2022

Semiconductor device, inverter circuit, driving device, vehicle, and elevator having a reduced on-resistance with a silicon carbide layer

TOSHIBA KK1 citations62

US11245017B2Feb 8, 2022

Semiconductor device, inverter circuit, drive device, vehicle, and elevator

TOSHIBA KK1 citations62

US11201210B2Dec 14, 2021

Semiconductor device, inverter circuit, drive device, vehicle, and elevator

TOSHIBA KK1 citations62

US11152470B2Oct 19, 2021

Method for manufacturing semiconductor device, method for manufacturing substrate, semiconductor device, substrate, and manufacturing apparatus of substrate

TOSHIBA KK1 citations62

US10431649B2Oct 1, 2019

Semiconductor device

TOSHIBA KK1 citations62

US10249717B2Apr 2, 2019

Semiconductor device and method for manufacturing the same

TOSHIBA KK1 citations62

US10243037B2Mar 26, 2019

Semiconductor device and method for manufacturing the same

TOSHIBA KK1 citations62

US11398556B2Jul 26, 2022

Semiconductor device, inverter circuit, drive device, vehicle, and elevator

TOSHIBA KK1 citations61

US11069803B2Jul 20, 2021

Semiconductor device, method of manufacturing semiconductor device, inverter circuit, driving device, vehicle, and elevator

TOSHIBA KK1 citations61

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

US11646368B2May 9, 2023

Semiconductor device

TOSHIBA KK0 citations52

US11495665B2Nov 8, 2022

Semiconductor device, inverter circuit, drive device, vehicle, and elevator

TOSHIBA KK0 citations52

US11404550B2Aug 2, 2022

Semiconductor device and method for manufacturing the same

TOSHIBA KK0 citations52

US11355602B2Jun 7, 2022

Semiconductor device having multiple conductive parts

TOSHIBA KK0 citations52

US11121249B2Sep 14, 2021

Semiconductor device, inverter circuit, driving device, vehicle, and elevator

TOSHIBA KK0 citations52

US11075262B2Jul 27, 2021

Semiconductor device

TOSHIBA KK0 citations52

US10998401B2May 4, 2021

Semiconductor device having a base body of silicon carbide

TOSHIBA KK0 citations52

US10861944B2Dec 8, 2020

Semiconductor device and method for manufacturing the same

TOSHIBA KK0 citations52

US10707306B2Jul 7, 2020

Semiconductor device and method of manufacturing the same

TOSHIBA KK0 citations52

US10546931B2Jan 28, 2020

Semiconductor device, inverter circuit, and vehicle

TOSHIBA KK0 citations52

US10424640B2Sep 24, 2019

Semiconductor device and method of manufacturing the same

TOSHIBA KK0 citations52

US10312330B2Jun 4, 2019

Method for fabricating semiconductor substrate, semiconductor substrate, and semiconductor device

TOSHIBA KK0 citations52

US10043883B2Aug 7, 2018

Semiconductor device, and method of manufacturing semiconductor device

TOSHIBA KK0 citations52

US10026813B2Jul 17, 2018

SiC semiconductor device having a high mobility and a high threshold voltage, inverter circuit, and vehicle

TOSHIBA KK0 citations52

US10014378B2Jul 3, 2018

Semiconductor device, method of manufacturing semiconductor device, inverter circuit, driving device, vehicle, and elevator

TOSHIBA KK0 citations52

US9972712B2May 15, 2018

Semiconductor device

TOSHIBA KK0 citations52

US9812411B2Nov 7, 2017

Semiconductor device, inverter circuit, and drive device

TOSHIBA KK0 citations52

US9716186B2Jul 25, 2017

Semiconductor device manufacturing method, and semiconductor device

TOSHIBA KK1 citations52

US9711498B2Jul 18, 2017

Semiconductor device, inverter circuit, driving device, vehicle, and elevator

TOSHIBA KK0 citations52

Showing the top 50 of 79 patents by PatentIndex Score.