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Yuki Shimizu

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Patents Grantslast 30 patents

  • Information Patent Grant

    Engine valve forging system
    • Patent number 9,283,615
    • Issue date Mar 15, 2016
    • Nittan Valve Co., Ltd.
    • Hideto Kuriyama
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

  • Information Patent Application

    ENGINE VALVE FORGING SYSTEM
    • Publication number 20140345354
    • Publication date Nov 27, 2014
    • NITTAN VALVE CO., LTD.
    • Hideto Kuriyama
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...