Patents by Inventor Shunji Fujie

Shunji Fujie has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Press brake
    Patent number: 4590784
    Abstract: A press brake has a press cradle, which has an upper die and which is provided across two frames, and a ram, which has a lower die, and which moves up and down to perform a bending operation on metal sheets. The upper ends of the beams attached by pins at the lower ends to the ram are coupled by pins to ends of rotary links which are connected by pins to the press cradle. The rotary links are rotated in a fixed path by hydraulic cylinders rotatably provided on both frames to raise and lower the ram via the beams.
    Type: Grant
    Filed: July 8, 1985
    Date of Patent: May 27, 1986
    Assignee: Nippon Kokan Kabushiki Kaisha
    Inventors: Jiro Okabe, Shunji Fujie, Haruki Takeuchi