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Tochigi-ken, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Scroll compressor having a valved back pressure chamber and a bypas...
Patent number
7,354,259
Issue date
Apr 8, 2008
Hitachi, Ltd.
Isamu Tsubono
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Scroll compressor
Patent number
7,137,796
Issue date
Nov 21, 2006
Hitachi, Ltd.
Isamu Tsubono
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Scroll compressor having a back-pressure chamber control valve
Patent number
7,118,358
Issue date
Oct 10, 2006
Hitachi, Ltd.
Isamu Tsubono
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Scroll compressor having a valved back pressure chamber and a bypas...
Patent number
6,769,888
Issue date
Aug 3, 2004
Hitachi, Ltd.
Isamu Tsubono
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Scroll compressor having a valved back-pressure chamber and a bypas...
Patent number
6,589,035
Issue date
Jul 8, 2003
Hitachi, Ltd.
Isamu Tsubono
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Displacement type fluid machine having an orbiting displacer formin...
Patent number
6,332,763
Issue date
Dec 25, 2001
Hitachi, Ltd.
Hirokatsu Kohsokabe
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Displacement type fluid machine having an orbiting displacer formin...
Patent number
6,332,764
Issue date
Dec 25, 2001
Hitachi, Ltd.
Hirokatsu Kohsokabe
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Displacement type fluid machine
Patent number
6,183,228
Issue date
Feb 6, 2001
Hitachi, Ltd.
Shigeru Machida
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Displacement fluid machine
Patent number
6,179,593
Issue date
Jan 30, 2001
Hitachi, Ltd.
Shunichi Mitsuya
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Displacement type fluid machine having an orbiting displacer formin...
Patent number
6,164,941
Issue date
Dec 26, 2000
Hitachi, Ltd.
Hirokatsu Kohsokabe
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Displacement type fluid machine having rotation suppression of an o...
Patent number
6,152,714
Issue date
Nov 28, 2000
Hitachi, Ltd.
Shunichi Mitsuya
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Displacement type compressor and method of forming coating film
Patent number
6,079,963
Issue date
Jun 27, 2000
Hitachi, Ltd.
Yoshishige Endo
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Scroll compressor having a fixed scroll plate with groove
Patent number
5,730,588
Issue date
Mar 24, 1998
Hitachi, Ltd.
Toshiyuki Terai
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Compressor with self-aligning rotational bearing
Patent number
5,580,233
Issue date
Dec 3, 1996
Hitachi, Ltd.
Tatuya Wakana
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Patents Applications
last 30 patents
Information
Patent Application
Scroll compressor
Publication number
20060057010
Publication date
Mar 16, 2006
Isamu Tsubono
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Scroll compressor
Publication number
20060051226
Publication date
Mar 9, 2006
Isamu Tsubono
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Scroll compressor
Publication number
20040247476
Publication date
Dec 9, 2004
Isamu Tsubono
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Scroll compressor
Publication number
20030190247
Publication date
Oct 9, 2003
Isamu Tsubono
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Displacement type compressor and method of forming coating film
Publication number
20030164352
Publication date
Sep 4, 2003
Yoshishige Endo
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...