Hiroyuki YAMAI

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Hitachinaka-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Power conversion apparatus
- Patent number 9,246,408
- Issue date Jan 26, 2016
- Hitachi Automotive Systems, Ltd.
- Ken Maeda
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Overcurrent fault detection device for electrical drive control system
- Patent number 8,947,838
- Issue date Feb 3, 2015
- Hitachi Automotive Systems, Ltd.
- Hiroyuki Yamai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply device and method for making decision as to contactor...
- Patent number 8,513,953
- Issue date Aug 20, 2013
- Hitachi Automotive Systems, Ltd.
- Kohei Myoen
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Power Conversion Device
- Publication number 20170347485
- Publication date Nov 30, 2017
- Hitachi Automotive Systems, Ltd.
- Akira ISHII
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Overcurrent Fault Detection Device for Electrical Drive Control System
- Publication number 20150106043
- Publication date Apr 16, 2015
- Hitachi Automotive Systems, Ltd.
- Hiroyuki YAMAI
- G01 - MEASURING TESTING
Information Patent Application
Power Conversion Apparatus
- Publication number 20140085955
- Publication date Mar 27, 2014
- Hitachi Automotive Systems, Ltd.
- Ken Maeda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Overcurrent Fault Detection Device for Electrical Drive Control System
- Publication number 20120050922
- Publication date Mar 1, 2012
- Hitachi Automotive Systems, Ltd.
- Hiroyuki YAMAI
- G01 - MEASURING TESTING
Information Patent Application
POWER SUPPLY DEVICE AND METHOD FOR MAKING DECISION AS TO CONTACTOR...
- Publication number 20110084704
- Publication date Apr 14, 2011
- Kohei Myoen
- B60 - VEHICLES IN GENERAL