TREA

Atsushi Kawamoto

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  • Ichikawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Manufacturing method for magnetic disc
    • Patent number 5,631,041
    • Issue date May 20, 1997
    • Sumitomo Metal Mining Co., Ltd.
    • Tadahito Kanaizuka
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic disc
    • Patent number 5,006,388
    • Issue date Apr 9, 1991
    • Sumitomo Metal Mining Company Limited
    • Ryuichi Kuzuo
    • G11 - INFORMATION STORAGE