TREA

Youichi Ogawa

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  • Tokorozawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Automatic loading disc player
    • Patent number 4,879,705
    • Issue date Nov 7, 1989
    • Pioneer Electronic Corporation
    • Yoshio Aoyagi
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Automatic loading disc player
    • Patent number 4,829,502
    • Issue date May 9, 1989
    • Pioneer Electronic Corporation
    • Yoshiro Aoyagi
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Automatic loading disc player
    • Patent number 4,701,902
    • Issue date Oct 20, 1987
    • Pioneer Electronic Corporation
    • Yoshiro Aoyagi
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Digital modulation signal reading device
    • Patent number 4,540,897
    • Issue date Sep 10, 1985
    • Pioneer Electronic Corporation
    • Saburo Takaoka
    • G11 - INFORMATION STORAGE