Patents by Inventor Tatsuyuki Ishijima

Tatsuyuki Ishijima 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).

  • Positioning and clamping device of a board
    Patent number: 5667351
    Abstract: A device for positioning and clamping a board includes a plurality of clamping devices for clamping an edge portion of the board. Each clamping device includes positioning members for positioning the board with respect thereto, and a dragging device disposed between the clamping devices for dragging the board into contact with the positioning members. The dragging device is provided with a board clamping portion including a lower claw and an upper claw having rotating disks rotatably installed thereon for swivably clamping the board, and a reciprocating mechanism connected with the board clamping portion for reciprocating the board clamping portion. A board is first clamped by the dragging device and is dragged into contact with the positioning members of the clamping devices.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: September 16, 1997
    Assignee: Seikosha Co., Ltd.
    Inventors: Takeshi Tokairin, Tatsuyuki Ishijima