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Saitama, JP
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last 30 patents
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Patent Grant
Rotary-sleeve supporting apparatus in rotary compressor
Patent number
4,657,493
Issue date
Apr 14, 1987
Nippon Piston Ring Co., Ltd.
Hiroshi Sakamaki
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Rotary sleeve bearing apparatus for a rotary compressor
Patent number
4,648,818
Issue date
Mar 10, 1987
Nippon Piston Ring Co., Ltd.
Hiroshi Sakamaki
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Vane-type rotary compressor having a sleeve for rotation with vanes
Patent number
4,620,837
Issue date
Nov 4, 1986
Nippon Piston Ring Co., Ltd.
Hiroshi Sakamaki
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Heat- and abrasion-resistant coating material
Patent number
4,605,695
Issue date
Aug 12, 1986
Nippon Piston Ring Co., Ltd.
Hiroshi Sakamaki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Rotary compressor
Patent number
4,595,347
Issue date
Jun 17, 1986
Nippon Piston Ring Co., Ltd.
Hiroshi Sakamaki
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Apparatus for supporting rotary sleeve of rotary compressor by fluid
Patent number
4,595,348
Issue date
Jun 17, 1986
Nippon Piston Ring Co., Ltd.
Hiroshi Sakamaki
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Vane type rotary compressor with rotary sleeve
Patent number
4,594,062
Issue date
Jun 10, 1986
Nippon Piston Ring Co., Ltd.
Hiroshi Sakamaki
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Rotary sleeve of a rotary compressor
Patent number
4,573,891
Issue date
Mar 4, 1986
Nippon Piston Ring Kabushiki Kaisha
Hiroshi Sakamaki
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Rotary-sleeve bearing apparatus for rotary compressor
Patent number
4,514,156
Issue date
Apr 30, 1985
Nippon Piston Ring Co., Ltd.
Hiroshi Sakamaki
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...