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Qiquan Geng

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  • Chigasaki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for measuring weak static magnetic field using supercondu...
    • Patent number 5,184,072
    • Issue date Feb 2, 1993
    • Research Development Corporation
    • Junpei Yuyama
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Refrigerator
    • Patent number 5,181,383
    • Issue date Jan 26, 1993
    • Research Development Corporation of Japan
    • Eiichi Goto
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...