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Shimizu, JP
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last 30 patents
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Patent Grant
Closed type scroll compressor with spherical slide bearing for the...
Patent number
5,277,564
Issue date
Jan 11, 1994
Hitachi, Ltd.
Takahiro Tamura
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Scroll compressor apparatus with separate oil reservoir vessel
Patent number
5,112,201
Issue date
May 12, 1992
Hitachi, Ltd.
Takahiro Tamura
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Lubricant supply system of a scroll fluid machine
Patent number
5,110,268
Issue date
May 5, 1992
Hitachi, Ltd.
Kazuo Sakurai
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Scroll compressor with first and second oil pumps in series
Patent number
5,017,108
Issue date
May 21, 1991
Hitachi, Ltd.
Akira Murayama
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Scroll fluid machine with bearing lubrication
Patent number
4,997,350
Issue date
Mar 5, 1991
Hitachi, Ltd.
Takahiro Tamura
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Bearing device of sealed type scroll compressor
Patent number
RE33236
Issue date
Jun 19, 1990
Hitachi, Ltd.
Eiichi Hazaki
418 - Rotary expansible chamber devices
Information
Patent Grant
Oil feeding system for scroll compressor
Patent number
4,898,521
Issue date
Feb 6, 1990
Hitachi, Ltd.
Kazuo Sakurai
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Hermetic scroll compressor with passage group for discharged fluid
Patent number
4,886,427
Issue date
Dec 12, 1989
Hitachi, Ltd.
Kazuo Sakurai
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Scroll fluid machine with oil feed passages
Patent number
4,818,198
Issue date
Apr 4, 1989
Hitachi, Ltd.
Takahiro Tamura
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Scroll compressor with balancer mounted in single frame
Patent number
4,762,478
Issue date
Aug 9, 1988
Hitachi, Ltd.
Kazuo Sakurai
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Scroll-type fluid machine with seal to aid lubrication
Patent number
4,743,181
Issue date
May 10, 1988
Hitachi, Ltd.
Akira Murayama
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Hermetic scroll compressor having concave spaces communicating with...
Patent number
4,730,997
Issue date
Mar 15, 1988
Hitachi, Ltd.
Takahiro Tamura
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Scroll compressor with closed compression spaces having valves to r...
Patent number
4,714,415
Issue date
Dec 22, 1987
Hitachi, Ltd.
Takao Mizuno
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Scroll-type fluid machine with configured wrap edges and grooves
Patent number
4,690,625
Issue date
Sep 1, 1987
Hitachi, Ltd.
Akira Murayama
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Scroll compressor with pressure differential maintained for supplyi...
Patent number
4,669,962
Issue date
Jun 2, 1987
Hitachi, Ltd.
Takao Mizuno
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Scroll fluid apparatus
Patent number
4,596,521
Issue date
Jun 24, 1986
Hitachi, Ltd.
Akira Murayama
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Scroll device with suction chamber pressure relief
Patent number
4,560,330
Issue date
Dec 24, 1985
Hitachi, Ltd.
Akira Murayama
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Scroll-type fluid machine with back pressure chamber biasing an orb...
Patent number
4,557,675
Issue date
Dec 10, 1985
Hitachi, Ltd.
Akira Murayama
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Bearing device of sealed type scroll compressor
Patent number
4,551,082
Issue date
Nov 5, 1985
Hitachi, Ltd.
Eiichi Hazaki
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Scroll-type compressor
Patent number
4,545,747
Issue date
Oct 8, 1985
Hitachi, Ltd.
Takahiro Tamura
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Sealed type electrically operated compressor
Patent number
4,518,324
Issue date
May 21, 1985
Hitachi, Ltd.
Takao Mizuno
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...