Ryouhei MIYAGAWA

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cooling structure of heating element and power conversion device
- Patent number 9,807,913
- Issue date Oct 31, 2017
- Hitachi, Ltd.
- Daisuke Matsumoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cooling structure for heating element and power converter
- Patent number 9,497,887
- Issue date Nov 15, 2016
- Hitachi, Ltd.
- Daisuke Matsumoto
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Cooling structure of heating element and power conversion device
- Patent number 9,437,797
- Issue date Sep 6, 2016
- Hitachi, Ltd.
- Daisuke Matsumoto
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Electrical Power Conversion Unit and Electrical Power Conversion De...
- Publication number 20180006573
- Publication date Jan 4, 2018
- Hitachi, Ltd
- Yukio HATTORI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Cooling Structure of Heating Element and Power Conversion Device
- Publication number 20160345463
- Publication date Nov 24, 2016
- HITACHI, LTD.
- Daisuke MATSUMOTO
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Cooling Structure of Heating Element and Power Conversion Device
- Publication number 20160093788
- Publication date Mar 31, 2016
- Hitachi, Ltd
- Daisuke MATSUMOTO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
COOLING STRUCTURE FOR HEATING ELEMENT AND POWER CONVERTER
- Publication number 20150250074
- Publication date Sep 3, 2015
- Hitachi, Ltd
- Daisuke MATSUMOTO
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR