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Hitachi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Wind power generating system and control method for the same
Patent number
8,502,404
Issue date
Aug 6, 2013
Hitachi, Ltd.
Yasuaki Nakayama
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Controller and control techniques for windfarm
Patent number
8,504,212
Issue date
Aug 6, 2013
Hitachi, Ltd.
Shinichi Kondo
F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information
Patent Grant
Wind turbine generator system
Patent number
8,466,573
Issue date
Jun 18, 2013
Hitachi, Ltd.
Akira Kikuchi
F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information
Patent Grant
Controller and control method for a wind farm including a plurality...
Patent number
8,332,077
Issue date
Dec 11, 2012
Hitachi, Ltd.
Shinichi Kondo
F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information
Patent Grant
Wind turbine generator system
Patent number
8,242,620
Issue date
Aug 14, 2012
Hitachi, Ltd.
Akira Kikuchi
F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information
Patent Grant
Wind turbine generator system
Patent number
7,952,216
Issue date
May 31, 2011
Hitachi, Ltd.
Akira Kikuchi
F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information
Patent Grant
Wind power generation system and method of controlling power converter
Patent number
7,952,214
Issue date
May 31, 2011
Hitachi, Ltd.
Masaya Ichinose
F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information
Patent Grant
Distributed generation system and power system stabilizing method
Patent number
7,948,217
Issue date
May 24, 2011
Hitachi, Ltd.
Shinya Oohara
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power generation apparatus using AC energization synchronous genera...
Patent number
7,733,066
Issue date
Jun 8, 2010
Hitachi, Ltd.
Masaya Ichinose
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Wind power generation system
Patent number
7,728,451
Issue date
Jun 1, 2010
Hitachi, Ltd.
Masaya Ichinose
F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information
Patent Grant
Hydrogen production system using wind turbine generator
Patent number
7,667,343
Issue date
Feb 23, 2010
Hitachi, Ltd.
Shinya Oohara
F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information
Patent Grant
Distributed generation system and power system stabilizing method
Patent number
7,663,348
Issue date
Feb 16, 2010
Hitachi, Ltd.
Shinya Oohara
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Wind turbine generator system
Patent number
7,615,880
Issue date
Nov 10, 2009
Hitachi, Ltd.
Akira Kikuchi
F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information
Patent Grant
Power generation apparatus using AC energization synchronous genera...
Patent number
7,453,242
Issue date
Nov 18, 2008
Hitachi, Ltd.
Masaya Ichinose
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power generation apparatus using AC energization synchronous genera...
Patent number
7,332,894
Issue date
Feb 19, 2008
Hitachi, Ltd.
Masaya Ichinose
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Wind turbine generator system
Patent number
7,268,443
Issue date
Sep 11, 2007
Hitachi, Ltd.
Akira Kikuchi
F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information
Patent Grant
Control apparatus for cascaded converter circuit
Patent number
4,884,184
Issue date
Nov 28, 1989
Hitachi, Ltd.
Takayuki Matsui
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
High harmonic current reducing apparatus in power converter
Patent number
4,122,515
Issue date
Oct 24, 1978
Hitachi, Ltd.
Kyozo Tachibana
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
WIND TURBINE GENERATOR SYSTEM
Publication number
20120286511
Publication date
Nov 15, 2012
Akira Kikuchi
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
WIND TURBINE GENERATOR SYSTEM
Publication number
20110266799
Publication date
Nov 3, 2011
Akira Kikuchi
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
WIND POWER GENERATING SYSTEM AND CONTROL METHOD FOR THE SAME
Publication number
20110074365
Publication date
Mar 31, 2011
Hitachi, Ltd.
Yasuaki NAKAYAMA
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Controller and Control Techniques for Windfarm
Publication number
20110046803
Publication date
Feb 24, 2011
Hitachi, Ltd
Shinichi KONDO
F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information
Patent Application
DISTRIBUTED GENERATION SYSTEM AND POWER SYSTEM STABILIZING METHOD
Publication number
20100117606
Publication date
May 13, 2010
Hitachi, Ltd
Shinya Oohara
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
CONTROLLER AND CONTROL METHOD FOR WINDFARM
Publication number
20100078940
Publication date
Apr 1, 2010
Hitachi, Ltd.
Shinichi Kondo
F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information
Patent Application
WIND TURBINE GENERATOR SYSTEM
Publication number
20100038908
Publication date
Feb 18, 2010
Akira Kikuchi
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
Power Generation Apparatus Using AC Energization Synchronous Genera...
Publication number
20090066297
Publication date
Mar 12, 2009
Masaya Ichinose
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Wind Power Generation System and Method of Controlling Power Converter
Publication number
20080296898
Publication date
Dec 4, 2008
Hitachi, Ltd.
Masaya ICHINOSE
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Wind Power Generation System
Publication number
20080143111
Publication date
Jun 19, 2008
Masaya Ichinose
F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information
Patent Application
Power Generation Apparatus Using AC Energization Synchronous Genera...
Publication number
20080143113
Publication date
Jun 19, 2008
Masaya Ichinose
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
WIND TURBINE GENERATOR SYSTEM
Publication number
20070262583
Publication date
Nov 15, 2007
Akira Kikuchi
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
Hydrogen production system using wind turbine generator
Publication number
20070216165
Publication date
Sep 20, 2007
Shinya Oohara
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
Distributed generation system and power system stabilizing method
Publication number
20070097565
Publication date
May 3, 2007
Shinya Oohara
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Power generation apparatus using AC energization synchronous genera...
Publication number
20070024247
Publication date
Feb 1, 2007
Masaya Ichinose
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Wind turbine generator system
Publication number
20060028025
Publication date
Feb 9, 2006
Akira Kikuchi
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS