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Kazuyuki Ohyama

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  • Ichikawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Chromate coating of zinc surfaces
    • Patent number 4,749,418
    • Issue date Jun 7, 1988
    • Nihon Parkerizing Co., Ltd.
    • Kenshi Saeki
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...