TREA

Koichi Ohya

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  • Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tuner apparatus
    • Patent number 7,249,368
    • Issue date Jul 24, 2007
    • Sony Corporation
    • Kazuhiko Maejima
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Television signal reception circuit, automatic phase shift control...
    • Patent number 6,628,343
    • Issue date Sep 30, 2003
    • Sony Corporation
    • Toshihiro Yamaguchi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Filter circuit
    • Patent number 4,859,881
    • Issue date Aug 22, 1989
    • Sony Corporation
    • Yoshihiro Yamamoto
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Filter adjustment apparatus and method
    • Patent number 4,841,461
    • Issue date Jun 20, 1989
    • Sony Corporation
    • Yoshihiro Yamamoto
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Filter adjustment apparatus and method
    • Patent number 4,812,773
    • Issue date Mar 14, 1989
    • Sony Corporation
    • Yoshihiro Yamamoto
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Voltage controllable oscillator
    • Patent number 4,731,592
    • Issue date Mar 15, 1988
    • Sony Corporation
    • Akiro Sato
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Tuner for television receiver
    • Patent number 4,691,378
    • Issue date Sep 1, 1987
    • Sony Corporation
    • Kenichiro Kumamoto
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    Tuner apparatus
    • Publication number 20010045994
    • Publication date Nov 29, 2001
    • Kazuhiko Maejima
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE