So Watanabe

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Tokyo, JP

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Patents Grantslast 30 patents

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 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