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Shigeya Kawaminami
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Shimotsuga-gun, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Permanent magnet type rotating electric machine
Patent number
6,838,798
Issue date
Jan 4, 2005
Hitachi, Ltd.
Ryoichi Takahata
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Permanent magnet type rotating electric machine
Patent number
6,552,461
Issue date
Apr 22, 2003
Hitachi, Ltd.
Ryoichi Takahata
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Electric power supply device and equipment using thereof
Patent number
6,496,339
Issue date
Dec 17, 2002
Hitachi, Ltd.
Wataru Sugawara
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Rotary piston compressor and refrigerating equipment
Patent number
6,336,336
Issue date
Jan 8, 2002
Hitachi, Ltd.
Shigeya Kawaminami
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Rotary compressor
Patent number
6,270,329
Issue date
Aug 7, 2001
Hiatchi, Ltd.
Kenichi Oshima
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Closed type motor-driven compressor, a scroll compressor and a scro...
Patent number
5,304,045
Issue date
Apr 19, 1994
Hitachi, Ltd.
Nobutoshi Hoshino
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Overload protective device
Patent number
5,184,269
Issue date
Feb 2, 1993
Hitachi, Ltd.
Toshio Shimada
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Permanent magnet type rotating electric machine
Publication number
20030107291
Publication date
Jun 12, 2003
Hitachi, Ltd
Ryoichi Takahata
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Permanent magnet type rotating electric machine
Publication number
20020130574
Publication date
Sep 19, 2002
Ryoichi Takahata
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Electric power supply device and equipment using thereof
Publication number
20020018326
Publication date
Feb 14, 2002
Wataru Sugawara
H01 - BASIC ELECTRIC ELEMENTS