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Etsuji Kawaguchi

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  • Moriyama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pulse tube refrigerator
    • Patent number 5,522,223
    • Issue date Jun 4, 1996
    • Iwatani Sangyo Kabushiki Kaisha
    • Masayoshi Yanai
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Pulse tube refrigerator
    • Patent number 5,515,685
    • Issue date May 14, 1996
    • Iwatani Sangyo Kabushiki Kaisha
    • Masayoshi Yanai
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Simplified apparatus for producing liquid nitrogen
    • Patent number 5,327,729
    • Issue date Jul 12, 1994
    • Iwatani Sangyo Kabushiki Kaisha
    • Masayoshi Yanai
    • F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
  • Information Patent Grant

    Apparatus for preventing evaporation of liquefied gas in liquefied...
    • Patent number 5,212,953
    • Issue date May 25, 1993
    • Iwatani Sangyo Kabushiki Kaisha
    • Etsuji Kawaguchi
    • F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS