Takehiro Akizawa

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Kanuma, JP

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Patents Grantslast 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...

Patents Applicationslast 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...