TREA

Kazuyoshi Nishizawa

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  • Tochigi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for producing magnetic disk substrates
    • Patent number 6,378,338
    • Issue date Apr 30, 2002
    • Showa Denko K.K.
    • Kurata Awaya
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Magnetic disk substrate
    • Patent number 6,258,458
    • Issue date Jul 10, 2001
    • Showa Aluminum Corporation
    • Kurata Awaya
    • B32 - LAYERED PRODUCTS