TREA

Shirou Okayama

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  • Chiba-ken, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Aluminum oxide-coated article
    • Patent number 6,333,103
    • Issue date Dec 25, 2001
    • Hitachi Metals, Ltd.
    • Toshio Ishii
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...