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Sadao Kawahara

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  • Shiga, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Linear compressor with vibration canceling spring arrangement
    • Patent number 6,742,998
    • Issue date Jun 1, 2004
    • Matsushita Electric Industrial Co., Ltd.
    • Sadao Kawahara
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Linear compressor
    • Patent number 6,626,651
    • Issue date Sep 30, 2003
    • Matsushita Electric Industrial Co., Ltd.
    • Teruyuki Akazawa
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Linear compressor
    • Patent number 6,565,332
    • Issue date May 20, 2003
    • Matsushita Electric Industrial Co., Ltd.
    • Sadao Kawahara
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Linear compressor
    • Patent number 6,506,032
    • Issue date Jan 14, 2003
    • Matsushita Electric Industrial Co., Ltd.
    • Sadao Kawahara
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Linear compressor
    • Patent number 6,328,544
    • Issue date Dec 11, 2001
    • Matsushita Electric Industrial Co., Ltd.
    • Sadao Kawahara
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Linear compressor
    • Patent number 6,273,688
    • Issue date Aug 14, 2001
    • Matsushita Electric Industrial Co., Ltd.
    • Sadao Kawahara
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Linear compressor
    • Patent number 6,250,895
    • Issue date Jun 26, 2001
    • Matsushita Electric Industrial Co., Ltd.
    • Sadao Kawahara
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll compressor having a horseshoe-shaped partition wall on the s...
    • Patent number 5,634,782
    • Issue date Jun 3, 1997
    • Matsushita Electric Industrial Co., Ltd.
    • Teruyuki Akazawa
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll compressor having a check valve received in a stationary scr...
    • Patent number 5,597,296
    • Issue date Jan 28, 1997
    • Matsushita Electric Industrial Co., Ltd.
    • Teruyuki Akazawa
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll compressor having improved orbital drive mechanism
    • Patent number 5,562,436
    • Issue date Oct 8, 1996
    • Matsushita Electric Industrial Co., Ltd.
    • Sadao Kawahara
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll compressor having improved orbital drive mechanism
    • Patent number 5,536,152
    • Issue date Jul 16, 1996
    • Matsushita Electric Industrial Co., Ltd.
    • Sadao Kawahara
    • 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-type compressor having a plate preventing excess lift of the...
    • Patent number 5,340,287
    • Issue date Aug 23, 1994
    • 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 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 Applicationslast 30 patents

  • Information Patent Application

    Linear compressor
    • Publication number 20030017064
    • Publication date Jan 23, 2003
    • Matsushita Electric Industrial Co., Ltd.
    • Sadao Kawahara
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Linear compressor
    • Publication number 20020176790
    • Publication date Nov 28, 2002
    • Matsushita Electric Industrial Co., Ltd.
    • Teruyuki Akazawa
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Linear compressor
    • Publication number 20010055535
    • Publication date Dec 27, 2001
    • Matsushita Electric Industrial Co., Ltd.
    • Sadao Kawahara
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Linear compressor
    • Publication number 20010014292
    • Publication date Aug 16, 2001
    • Matsushita Electric Industrial Co., Ltd.
    • Sadao Kawahara
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...