Hirofumi OYAMADA

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Power conversion system and method for detecting isolated operation...
- Patent number 9,991,819
- Issue date Jun 5, 2018
- Hitachi Information & Telecommunication Engineering, Ltd.
- Tomoyuki Hatakeyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
Power Conversion System and Method for Detecting Isolated Operation...
- Publication number 20150109836
- Publication date Apr 23, 2015
- Hitachi Information & Telecommunication Engineering, Ltd.
- Tomoyuki HATAKEYAMA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER