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Shizuoka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Converter and power converter that becomes it with the converter
Patent number
7,839,663
Issue date
Nov 23, 2010
Hitachi Appliances, Inc.
Takahiro Suzuki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Converter and power converter that becomes it with the converter
Patent number
7,471,525
Issue date
Dec 30, 2008
Hitachi Appliances, Inc.
Takahiro Suzuki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Inverter device
Patent number
7,181,923
Issue date
Feb 27, 2007
Hitachi, Ltd.
Yoshiaki Kurita
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Refrigerating apparatus and an inverter device used therein
Patent number
6,735,968
Issue date
May 18, 2004
Hitachi, Ltd.
Yoshiaki Kurita
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Pulse width modulation method, pulse width modulator and power conv...
Patent number
6,657,412
Issue date
Dec 2, 2003
Hitachi, Ltd.
Seiji Ishida
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Driving system of AC motor
Patent number
6,531,843
Issue date
Mar 11, 2003
Hitachi, Ltd.
Yoshitaka Iwaji
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
Converter And Power Converter That Becomes It With The Converter
Publication number
20090135630
Publication date
May 28, 2009
Takahiro Suzuki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Converter and power converter that becomes it with the converter
Publication number
20060044848
Publication date
Mar 2, 2006
Takahiro Suzuki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Refrigerating apparatus and inverter device
Publication number
20050204760
Publication date
Sep 22, 2005
Yoshiaki Kurita
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Application
Inverter device
Publication number
20040194486
Publication date
Oct 7, 2004
Yoshiaki Kurita
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Application
Refrigerating apparatus and an inverter device used therein
Publication number
20030182956
Publication date
Oct 2, 2003
Yoshiaki Kurita
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Application
Pulse width modulation method, pulse width modulator and power conv...
Publication number
20020093391
Publication date
Jul 18, 2002
Seiji Ishida
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Driving system of AC motor
Publication number
20020060548
Publication date
May 23, 2002
Yoshitaka Iwaji
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER