TREA

Takeshi Ishigami

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Feedforward amplifier
    • Patent number 7,679,440
    • Issue date Mar 16, 2010
    • Hitachi Kokusai Electric Inc.
    • Takeshi Ishigami
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Distortion compensating amplifier
    • Patent number 7,680,467
    • Issue date Mar 16, 2010
    • Hitachi Kokusai Electric Inc.
    • Takeshi Ishigami
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Feed forward amplification apparatus for compensating non-linear di...
    • Patent number 6,861,904
    • Issue date Mar 1, 2005
    • Hitachi Kokusai Electric Inc.
    • Takeshi Ishigami
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Feedforward amplifier
    • Patent number 6,801,083
    • Issue date Oct 5, 2004
    • Hitachi Kokusai Electric Inc.
    • Takeshi Ishigami
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    MOSFET amplifier circuit
    • Patent number 6,335,657
    • Issue date Jan 1, 2002
    • Kokusai Electric Co. Ltd.
    • Hiromichi Hayase
    • H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents