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Ryoichi Yamada

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  • Niihama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Forging press apparatus, controller of automation device used there...
    • Patent number 6,272,892
    • Issue date Aug 14, 2001
    • Sumitomo Heavy Industries, Ltd.
    • Yutaka Ozaki
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Transfer feeder for forging press
    • Patent number 6,105,414
    • Issue date Aug 22, 2000
    • Sumitomo Heavy Industries, Ltd.
    • Ryoichi Yamada
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Transfer feeder for hot-forging presses
    • Patent number 5,488,852
    • Issue date Feb 6, 1996
    • Sumitomo Heavy Industries, Ltd.
    • Junji Nishikawa
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...