TREA

Katsuaki Tsurushima

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  • Kawasaki, JA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Bias circuit for FET
    • Patent number 4,031,482
    • Issue date Jun 21, 1977
    • Sony Corporation
    • Katsuaki Tsurushima
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Muting circuit
    • Patent number 3,992,677
    • Issue date Nov 16, 1976
    • Sony Corporation
    • Katsuaki Tsurushima
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Protective circuit for field effect transistor amplifier
    • Patent number 3,968,382
    • Issue date Jul 6, 1976
    • Sony Corporation
    • Katsuaki Tsurushima
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Oscillator circuit
    • Patent number 3,955,154
    • Issue date May 4, 1976
    • Sony Corporation
    • Tadao Sasaki
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Cascade-connected transistor amplifier
    • Patent number 3,949,316
    • Issue date Apr 6, 1976
    • Sony Corporation
    • Katsuaki Tsurushima
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Variable gain control circuit
    • Patent number 3,943,286
    • Issue date Mar 9, 1976
    • Sony Corporation
    • Katsuaki Tsurushima
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE