Takayoshi YAMAMOTO

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Patents Grantslast 30 patents

Information Patent Grant
Switching element, power converter, direct current transmission sys...
- Patent number 9,219,426
- Issue date Dec 22, 2015
- Hitachi, Ltd.
- Takayoshi Yamamoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Multilevel voltage source converter and method for balancing capaci...
- Patent number 9,166,492
- Issue date Oct 20, 2015
- Hitachi, Ltd.
- Takayoshi Yamamoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
Power Conversion Apparatus and Control Method Thereof
- Publication number 20140078796
- Publication date Mar 20, 2014
- Hitachi, Ltd
- Shigenori INOUE
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Voltage Source Converter and Method for Controlling the Converter
- Publication number 20140016379
- Publication date Jan 16, 2014
- Takayoshi YAMAMOTO
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Switching Element, Power Converter, Direct Current Transmission Sys...
- Publication number 20130208519
- Publication date Aug 15, 2013
- Hitachi, Ltd
- Takayoshi YAMAMOTO
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER