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Shigetoshi Doi

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Patents Grantslast 30 patents

  • Information Patent Grant

    Supercritical refrigerant cycle system
    • Patent number 7,143,595
    • Issue date Dec 5, 2006
    • Sanyo Electric Co., LTD
    • Shigetoshi Doi
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...

Patents Applicationslast 30 patents

  • Information Patent Application

    Supercritical refrigerant cycle system
    • Publication number 20050150240
    • Publication date Jul 14, 2005
    • Sanyo Electric Co., Ltd.
    • Shigetoshi Doi
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Supercritical refrigerant cycle system
    • Publication number 20040020223
    • Publication date Feb 5, 2004
    • Shigetoshi Doi
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...