Hiroshi KAGEYAMA

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Power conversion device and ground fault location diagnosis method
- Patent number 11,391,788
- Issue date Jul 19, 2022
- Hitachi Industrial Equipment Systems Co., Ltd.
- Hiroshi Kageyama
- G01 - MEASURING TESTING
Information Patent Grant
Acoustic emission wave detection system for a high voltage apparatus
- Patent number 10,488,515
- Issue date Nov 26, 2019
- Hitachi, Ltd.
- Daichi Kawamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Power module, electrical power conversion device, and driving devic...
- Patent number 10,115,700
- Issue date Oct 30, 2018
- Hitachi, Ltd.
- Ryuusei Fujita
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Power Conversion Device and Ground Fault Location Diagnosis Method
- Publication number 20210270911
- Publication date Sep 2, 2021
- Hitachi Industrial Equipment Systems Co., Ltd.
- Hiroshi KAGEYAMA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER MODULE, ELECTRICAL POWER CONVERSION DEVICE, AND DRIVING DEVIC...
- Publication number 20180026009
- Publication date Jan 25, 2018
- Hitachi, Ltd
- Ryuusei FUJITA
- B60 - VEHICLES IN GENERAL
Information Patent Application
Acoustic Emission Wave Detector, Acoustic Emission Wave Detection S...
- Publication number 20170329006
- Publication date Nov 16, 2017
- Daichi KAWAMURA
- G01 - MEASURING TESTING