TREA

Masaichi Kawahata

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  • Hachioji, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Expansion valve
    • Patent number 6,296,194
    • Issue date Oct 2, 2001
    • TGK Co., Ltd.
    • Hisatoshi Hirota
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Three-function pressure switch
    • Patent number 4,591,677
    • Issue date May 27, 1986
    • TGK Company, Limited
    • Hisatoshi Hirota
    • H01 - BASIC ELECTRIC ELEMENTS