TREA

Kazufumi Ushijima

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  • Hirakata, JA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Automatic tuning apparatus
    • Patent number 4,008,437
    • Issue date Feb 15, 1977
    • Sanyo Electric Co., Ltd.
    • Yoshiaki Sakauchi
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Indicating device for tuning apparatus
    • Patent number 3,996,540
    • Issue date Dec 7, 1976
    • Yasuhiro Yamada
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Automatic tuning apparatus
    • Patent number 3,986,154
    • Issue date Oct 12, 1976
    • Sanyo Electric Co., Ltd.
    • Yasuhiro Yamada
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Automatic tuning apparatus
    • Patent number 3,967,057
    • Issue date Jun 29, 1976
    • Sanyo Electric Co.
    • Kazuyoshi Tsukamoto
    • H03 - BASIC ELECTRONIC CIRCUITRY