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Kusatsu-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Hermetic motor-driven compressor
Patent number
6,680,550
Issue date
Jan 20, 2004
Matsushita Electric Industrial Co., Ltd.
Hiroshi Matsunaga
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Gear pump for use in an electrically-operated sealed compressor
Patent number
6,227,828
Issue date
May 8, 2001
Matsushita Electric Industrial Co., Ltd.
Yoshiharu Takeuchi
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Gear pump for use in an electrically-operated sealed compressor
Patent number
6,116,877
Issue date
Sep 12, 2000
Matsushita Electric Industrial Co., Ltd.
Yoshiharu Takeuchi
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Gear pump for use in an electrically-operated sealed compressor
Patent number
6,039,551
Issue date
Mar 21, 2000
Matsushita Electric Industrial Co., Ltd.
Yoshiharu Takeuchi
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Scroll compressor having well-balanced rotary elements
Patent number
5,951,269
Issue date
Sep 14, 1999
Matsushita Electric Industrial Co., Ltd.
Takuji Sasa
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Hermetic electric scroll compressor having a lubricating passage in...
Patent number
5,931,650
Issue date
Aug 3, 1999
Matsushita Electric Industrial Co., Ltd.
Toshiharu Yasu
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Electrically-driven closed scroll compressor having means for minim...
Patent number
5,800,149
Issue date
Sep 1, 1998
Matsushita Electric Industrial Co., Ltd.
Manabu Sakai
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Electrically-driven closed scroll compressor having means for minim...
Patent number
5,630,712
Issue date
May 20, 1997
Matsushita Electric Industrial Co., Ltd.
Manabu Sakai
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Hermetic scroll compressor having a pumped fluid motor cooling mean...
Patent number
5,591,018
Issue date
Jan 7, 1997
Matsushita Electric Industrial Co., Ltd.
Yoshiharu Takeuchi
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Scroll compressor having recesses on the scroll wraps
Patent number
5,395,222
Issue date
Mar 7, 1995
Matsushita Electric Industrial Co., Ltd.
Sadao Kawahara
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Starting method for scroll-type compressor
Patent number
5,395,214
Issue date
Mar 7, 1995
Matsushita Electric Industrial Co., Ltd.
Sadao Kawahara
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Motor compressor with lubricant separation
Patent number
5,391,066
Issue date
Feb 21, 1995
Matsushita Electric Industrial Co., Ltd.
Kiyoshi Sawai
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Scroll compressor with swirling impeller biased by cooled lubricant
Patent number
5,217,360
Issue date
Jun 8, 1993
Matsushita Electric Industrial Co., Ltd.
Sadao Kawahara
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Scroll compressor with regulated oil flow to the back pressure chamber
Patent number
5,217,359
Issue date
Jun 8, 1993
Matsushita Electric Industrial Co., Ltd.
Sadao Kawahara
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Scroll compressor with axial vibration prevention for a shaft bearing
Patent number
5,213,489
Issue date
May 25, 1993
Matsushita Electric Industrial Co., Ltd.
Sadao Kawahara
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Scroll compressor with reduced vibration resulting from the Oldham'...
Patent number
5,188,521
Issue date
Feb 23, 1993
Matsushita Electric Industrial Co., Ltd.
Sadao Kawahara
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Patents Applications
last 30 patents
Information
Patent Application
Hermetic motor-driven compressor
Publication number
20020109420
Publication date
Aug 15, 2002
Hiroshi Matsunaga
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER