So Watanabe

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Semiconductor device and power conversion device
- Patent number 12,300,716
- Issue date May 13, 2025
- Hitachi Power Semiconductor Device, Ltd.
- Tomoyasu Furukawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor devices and power conversion systems
- Patent number 9,082,814
- Issue date Jul 14, 2015
- Hitachi Power Semiconductor Device, Ltd.
- Masaki Shiraishi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device and power conversion apparatus using the same
- Patent number 8,809,903
- Issue date Aug 19, 2014
- Hitachi, Ltd.
- So Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device and electric power conversion system using the...
- Patent number 8,653,588
- Issue date Feb 18, 2014
- Hitachi, Ltd.
- So Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device and power conversion apparatus using the same
- Patent number 8,546,847
- Issue date Oct 1, 2013
- Hitachi, Ltd.
- So Watanabe
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SEMICONDUCTOR DEVICE AND POWER CONVERSION DEVICE
- Publication number 20250234600
- Publication date Jul 17, 2025
- Hitachi Power Semiconductor Device, Ltd.
- Tomoyasu Furukawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CURRENT DETECTION DEVICE AND POWER CONVERSION DEVICE FOR POWER DEVICE
- Publication number 20250180612
- Publication date Jun 5, 2025
- Hitachi Astemo, Ltd.
- So WATANABE
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DRIVING DEVICE OF SEMICONDUCTOR SWITCHING ELEMENT AND POWER CONVERS...
- Publication number 20250070636
- Publication date Feb 27, 2025
- Hitachi, Ltd
- Hangxian GAO
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
SEMICONDUCTOR DEVICE AND POWER CONVERSION DEVICE
- Publication number 20220278194
- Publication date Sep 1, 2022
- Hitachi Power Semiconductor Device, Ltd.
- Tomoyasu Furukawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE AND POWER CONVERSION DEVICE USING SAME
- Publication number 20160020309
- Publication date Jan 21, 2016
- Hitachi Power Semiconductor Device, Ltd.
- Hiroshi Suzuki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Semiconductor Device and Power Conversion Apparatus Using the Same
- Publication number 20140001512
- Publication date Jan 2, 2014
- Hitachi, Ltd
- So WATANABE
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Semiconductor Device and Electric Power Conversion System Using The...
- Publication number 20130020634
- Publication date Jan 24, 2013
- Hitachi, Ltd
- So Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Semiconductor Device and Electric Power Conversion Device Using Same
- Publication number 20120273897
- Publication date Nov 1, 2012
- Hitachi, Ltd
- Masaki Shiraishi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Semiconductor Devices and Power Conversion Systems
- Publication number 20120176828
- Publication date Jul 12, 2012
- Hitachi, Ltd
- Masaki Shiraishi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Semiconductor Device and Power Conversion Apparatus Using the same
- Publication number 20110133718
- Publication date Jun 9, 2011
- Hitachi, Ltd
- So WATANABE
- H01 - BASIC ELECTRIC ELEMENTS

So Watanabe

Person

Patents Grantslast 30 patents

Semiconductor device and power conversion device

Semiconductor devices and power conversion systems

Semiconductor device and power conversion apparatus using the same

Semiconductor device and electric power conversion system using the...

Semiconductor device and power conversion apparatus using the same

Patents Applicationslast 30 patents

SEMICONDUCTOR DEVICE AND POWER CONVERSION DEVICE

CURRENT DETECTION DEVICE AND POWER CONVERSION DEVICE FOR POWER DEVICE

DRIVING DEVICE OF SEMICONDUCTOR SWITCHING ELEMENT AND POWER CONVERS...

SEMICONDUCTOR DEVICE AND POWER CONVERSION DEVICE

SEMICONDUCTOR DEVICE AND POWER CONVERSION DEVICE USING SAME

Semiconductor Device and Power Conversion Apparatus Using the Same

Semiconductor Device and Electric Power Conversion System Using The...

Semiconductor Device and Electric Power Conversion Device Using Same

Semiconductor Devices and Power Conversion Systems

Semiconductor Device and Power Conversion Apparatus Using the same