TREA

Satoru Yamaguchi

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  • Kyoto, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,946,374
    • Issue date Aug 7, 1990
    • Hitachi Maxell, Ltd.
    • Satoru Yamaguchi
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,624,883
    • Issue date Nov 25, 1986
    • Hitachi Maxell, Ltd.
    • Satoru Yamaguchi
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,349,608
    • Issue date Sep 14, 1982
    • Hitachi Maxell, Ltd.
    • Jozo Shimizu
    • G11 - INFORMATION STORAGE