TREA

Tatsuhiko Okuma

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Amplifier circuit
    • Patent number 4,472,688
    • Issue date Sep 18, 1984
    • Trio Kabushiki Kaisha
    • Funada Saburo
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Amplifying circuit
    • Patent number 4,199,732
    • Issue date Apr 22, 1980
    • Trio Kabushiki Kaisha
    • Tatsuhiko Okuma
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Amplifier circuit
    • Patent number 4,158,179
    • Issue date Jun 12, 1979
    • Trio Kabushiki Kaisha
    • Kazumasa Sakai
    • H03 - BASIC ELECTRONIC CIRCUITRY