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Yoshio Sekiguchi

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  • Higashimatsuyama-shi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cold forging method and apparatus
    • Patent number 6,470,728
    • Issue date Oct 29, 2002
    • Sekiguchi Sangyo Co., Ltd.
    • Yoshio Sekiguchi
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

  • Information Patent Application

    Cold forging method and apparatus
    • Publication number 20010018842
    • Publication date Sep 6, 2001
    • SEKIGUCHI SANGYO CO., LTD.
    • Yoshio Sekiguchi
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...