Hironobu Shiroyama

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Nagano, JP

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Patents Grantslast 30 patents

Information Patent Grant
Power supply control circuit and power source cut-off detection method
- Patent number 9,537,417
- Issue date Jan 3, 2017
- Fuji Electric Co., Ltd.
- Hironobu Shiroyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Direct-current switch
- Patent number 8,902,550
- Issue date Dec 2, 2014
- Fuji Electric Co., Ltd.
- Hirofumi Matsuo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Switching power supply device
- Patent number 7,859,864
- Issue date Dec 28, 2010
- Fuji Electric Systems Co., Ltd.
- Hironobu Shiroyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Switching power supply equipment
- Patent number 7,751,209
- Issue date Jul 6, 2010
- Fuji Electric Device Technology Co., Ltd.
- Hironobu Shiroyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply circuit
- Patent number 6,657,877
- Issue date Dec 2, 2003
- Fuji Electric Co., Ltd.
- Masato Kashima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
POWER SUPPLY CONTROL CIRCUIT AND POWER SOURCE CUT-OFF DETECTION METHOD
- Publication number 20130147440
- Publication date Jun 13, 2013
- Fuji Electric Co., Ltd.
- Hironobu SHIROYAMA
- G01 - MEASURING TESTING
Information Patent Application
DIRECT-CURRENT SWITCH
- Publication number 20120018404
- Publication date Jan 26, 2012
- Fuji Electric Co., Ltd.
- Hirofumi MATSUO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Switching power supply device
- Publication number 20090134859
- Publication date May 28, 2009
- Fuji Electric Device Technology Co., LTD.
- Hironobu Shiroyama
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
SWITCHING POWER SUPPLY EQUIPMENT
- Publication number 20080001589
- Publication date Jan 3, 2008
- Fuji Electric Device Technology Co., LTD.
- Hironobu SHIROYAMA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Power supply circuit
- Publication number 20020089860
- Publication date Jul 11, 2002
- Masato Kashima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER