TREA

Ryuichi Hiratsuka

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  • Otemachi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Antenna apparatus and attitude control method
    • Patent number 5,089,824
    • Issue date Feb 18, 1992
    • Nippon Steel Corporation
    • Masahiro Uematsu
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Antenna system
    • Patent number 5,073,783
    • Issue date Dec 17, 1991
    • Nippon Steel Corporation
    • Masahiro Uematsu
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Antenna system
    • Patent number 4,994,812
    • Issue date Feb 19, 1991
    • Nippon Steel Corporation
    • Masahiro Uematsu
    • G01 - MEASURING TESTING