TREA

Hiroshi Sugihara

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  • Saku, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,621,008
    • Issue date Nov 4, 1986
    • TDK Corporation
    • Yasufumi Takasugi
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,592,948
    • Issue date Jun 3, 1986
    • TDK Corporation
    • Osamu Kohmoto
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,537,832
    • Issue date Aug 27, 1985
    • TDK Corporation
    • Osamu Kohmoto
    • G11 - INFORMATION STORAGE