Inventor
GEJO RYOHEI
JP33 patents
Patents
33 patentsUS9159722B2Oct 13, 2015
Semiconductor device
TOSHIBA KK9 citations83
US10418470B2Sep 17, 2019
Semiconductor device having IGBT portion and diode portion
TOSHIBA KK4 citations73
US9761582B2Sep 12, 2017
Semiconductor device and method of manufacturing semiconductor device
TOSHIBA KK6 citations73
US10727225B2Jul 28, 2020
IGBT semiconductor device
TOSHIBA KK2 citations72
US10297593B2May 21, 2019
Semiconductor device
TOSHIBA KK5 citations72
US9324815B2Apr 26, 2016
Semiconductor device
TOSHIBA KK3 citations72
US10756181B1Aug 25, 2020
Semiconductor device
TOSHIBA KK4 citations64
US12426326B2Sep 23, 2025
Semiconductor device
TOSHIBA KK1 citations63
US11955477B2Apr 9, 2024
Semiconductor device and semiconductor circuit
TOSHIBA KK1 citations62
US11837654B2Dec 5, 2023
Method for controlling semiconductor device
TOSHIBA KK0 citations62
US11563112B2Jan 24, 2023
Method for controlling semiconductor device
TOSHIBA KK0 citations62
US11374563B2Jun 28, 2022
Method for controlling semiconductor device
TOSHIBA KK1 citations62
US9054066B2Jun 9, 2015
Semiconductor device
TOSHIBA KK2 citations61
US12550347B2Feb 10, 2026
Semiconductor device and semiconductor circuit
TOSHIBA KK0 citations52
US12489441B2Dec 2, 2025
Driving device and semiconductor device
TOSHIBA KK0 citations52
US12469815B2Nov 11, 2025
Semiconductor package
TOSHIBA KK0 citations52
US12456911B2Oct 28, 2025
Driving device and semiconductor device
TOSHIBA KK0 citations52
US12278279B2Apr 15, 2025
Semiconductor device
TOSHIBA KK0 citations52
US11923851B2Mar 5, 2024
Drive device and semiconductor module
TOSHIBA KK0 citations52
US11784246B2Oct 10, 2023
Semiconductor device and semiconductor module
TOSHIBA KK0 citations52
US11777025B2Oct 3, 2023
Semiconductor device
TOSHIBA KK0 citations52
US11462633B2Oct 4, 2022
Semiconductor device
TOSHIBA KK0 citations52
US12513926B2Dec 30, 2025
Semiconductor device and semiconductor module
TOSHIBA KK0 citations51
US11777028B2Oct 3, 2023
Semiconductor device
TOSHIBA KK0 citations51
US11380790B2Jul 5, 2022
Semiconductor device
TOSHIBA KK0 citations51
US11335787B2May 17, 2022
Semiconductor device
TOSHIBA KK0 citations51
US11296076B2Apr 5, 2022
Semiconductor device
TOSHIBA KK0 citations51
US12107159B2Oct 1, 2024
Semiconductor device
TOSHIBA KK0 citations50
US12543332B2Feb 3, 2026
Semiconductor device
TOSHIBA KK0 citations48
US11824056B2Nov 21, 2023
Trench gate IGBT with carrier trap under the control electrode
TOSHIBA KK0 citations43
US10700184B2Jun 30, 2020
Semiconductor device
TOSHIBA KK0 citations42
US10083957B2Sep 25, 2018
Semiconductor device
TOSHIBA KK0 citations42
US10636898B2Apr 28, 2020
Semiconductor device
TOSHIBA KK0 citations41