Keishirou KUMADA

Person

Matsumoto-city, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Semiconductor device
- Patent number 11,876,131
- Issue date Jan 16, 2024
- Fuji Electric Co., Ltd.
- Yuichi Hashizume
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Silicon carbide semiconductor device having a step film formed betw...
- Patent number 11,245,013
- Issue date Feb 8, 2022
- Fuji Electric Co., Ltd.
- Yuichi Hashizume
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Silicon carbide semiconductor device and method of manufacturing si...
- Patent number 11,145,724
- Issue date Oct 12, 2021
- Fuji Electric Co., Ltd.
- Keishirou Kumada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device
- Patent number 11,121,248
- Issue date Sep 14, 2021
- Fuji Electric Co., Ltd.
- Yoshihisa Suzuki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device and method of manufacturing semiconductor device
- Patent number 10,991,821
- Issue date Apr 27, 2021
- Fuji Electric Co., Ltd.
- Yasuyuki Hoshi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Silicon carbide semiconductor device and method of manufacturing si...
- Patent number 10,930,775
- Issue date Feb 23, 2021
- Fuji Electric Co., Ltd.
- Yasuyuki Hoshi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device and method of manufacturing semiconductor device
- Patent number 10,868,168
- Issue date Dec 15, 2020
- Fuji Electric Co., Ltd.
- Yuichi Hashizume
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device and semiconductor circuit device
- Patent number 10,818,789
- Issue date Oct 27, 2020
- Fuji Electric Co., Ltd.
- Keishirou Kumada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Silicon carbide semiconductor device and method of manufacturing a...
- Patent number 10,658,465
- Issue date May 19, 2020
- Fuji Electric Co., Ltd.
- Yasuyuki Hoshi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device
- Patent number 10,559,514
- Issue date Feb 11, 2020
- Fuji Electric Co., Ltd.
- Yuichi Hashizume
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device with lifetime killers and method of manufactur...
- Patent number 10,347,735
- Issue date Jul 9, 2019
- Fuji Electric Co., Ltd.
- Keishirou Kumada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Trench MOS semiconductor device
- Patent number 9,748,370
- Issue date Aug 29, 2017
- Fuji Electric Co., Ltd.
- Keishirou Kumada
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SEMICONDUCTOR MODULE
- Publication number 20240250015
- Publication date Jul 25, 2024
- Fuji Electric Co., Ltd.
- Katsunori SUZUKI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE
- Publication number 20240021605
- Publication date Jan 18, 2024
- Fuji Electric Co., Ltd.
- Keishirou KUMADA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SILICON CARBIDE SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING SI...
- Publication number 20230326960
- Publication date Oct 12, 2023
- Fuji Electric Co., Ltd.
- Keishirou KUMADA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SILICON CARBIDE SEMICONDUCTOR DEVICE
- Publication number 20230062475
- Publication date Mar 2, 2023
- Fuji Electric Co., Ltd.
- Keishirou KUMADA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SILICON CARBIDE SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING T...
- Publication number 20220336590
- Publication date Oct 20, 2022
- Fuji Electric Co., Ltd.
- Keishirou KUMADA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE AND SEMICONDUCTOR CIRCUIT DEVICE
- Publication number 20200020800
- Publication date Jan 16, 2020
- Fuji Electric Co., Ltd.
- Keishirou KUMADA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SILICON CARBIDE SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING SI...
- Publication number 20200020796
- Publication date Jan 16, 2020
- Fuji Electric Co., Ltd.
- Yasuyuki HOSHI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE
- Publication number 20200020797
- Publication date Jan 16, 2020
- Fuji Electric Co., Ltd.
- Yoshihisa SUZUKI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SILICON CARBIDE SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING SI...
- Publication number 20190386106
- Publication date Dec 19, 2019
- Fuji Electric Co., Ltd.
- Keishirou KUMADA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE
- Publication number 20190371932
- Publication date Dec 5, 2019
- Fuji Electric Co., Ltd.
- Yuichi HASHIZUME
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE
- Publication number 20190131444
- Publication date May 2, 2019
- Fuji Electric Co., Ltd.
- Yuichi Hashizume
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE
- Publication number 20190131443
- Publication date May 2, 2019
- Fuji Electric Co., Ltd.
- Yasuyuki Hoshi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE
- Publication number 20190109065
- Publication date Apr 11, 2019
- Fuji Electric Co., Ltd.
- Yuichi HASHIZUME
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SILICON CARBIDE SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING A...
- Publication number 20190074359
- Publication date Mar 7, 2019
- Fuji Electric Co., Ltd.
- Yuichi Hashizume
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SILICON CARBIDE SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING A...
- Publication number 20190043957
- Publication date Feb 7, 2019
- Fuji Electric Co., Ltd.
- Yasuyuki HOSHI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE WITH LIFETIME KILLERS AND METHOD OF MANUFACTUR...
- Publication number 20180233564
- Publication date Aug 16, 2018
- Fuji Electric Co., Ltd.
- Keishirou KUMADA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
TRENCH MOS SEMICONDUCTOR DEVICE
- Publication number 20150270387
- Publication date Sep 24, 2015
- Fuji Electric Co., Ltd.
- Keishirou KUMADA
- H01 - BASIC ELECTRIC ELEMENTS

Keishirou KUMADA

Person

Patents Grantslast 30 patents

Semiconductor device

Silicon carbide semiconductor device having a step film formed betw...

Silicon carbide semiconductor device and method of manufacturing si...

Semiconductor device

Semiconductor device and method of manufacturing semiconductor device

Silicon carbide semiconductor device and method of manufacturing si...

Semiconductor device and method of manufacturing semiconductor device

Semiconductor device and semiconductor circuit device

Silicon carbide semiconductor device and method of manufacturing a...

Semiconductor device

Semiconductor device with lifetime killers and method of manufactur...

Trench MOS semiconductor device

Patents Applicationslast 30 patents

SEMICONDUCTOR MODULE

SEMICONDUCTOR DEVICE

SILICON CARBIDE SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING SI...

SILICON CARBIDE SEMICONDUCTOR DEVICE

SILICON CARBIDE SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING T...

SEMICONDUCTOR DEVICE AND SEMICONDUCTOR CIRCUIT DEVICE

SILICON CARBIDE SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING SI...

SEMICONDUCTOR DEVICE

SILICON CARBIDE SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING SI...

SEMICONDUCTOR DEVICE

SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE

SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE

SEMICONDUCTOR DEVICE

SILICON CARBIDE SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING A...

SILICON CARBIDE SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING A...

SEMICONDUCTOR DEVICE WITH LIFETIME KILLERS AND METHOD OF MANUFACTUR...

TRENCH MOS SEMICONDUCTOR DEVICE