Patents by Inventor Sakuma Kouichi

Sakuma Kouichi 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).

  • Looper and knife driving mechanism for sewing machine
    Patent number: 6814015
    Abstract: In a looper and cutter drive mechanism for sewing machine, an upper looper and a lower looper are respectively disposed below a throat plate, respective loop-taker points of these loopers are arranged in the same direction such that the loop-taker points pass a front side of the needle as seen in the stitching direction. The upper looper and the lower looper are driven such that the upper looper and the lower looper perform movements having traces on planes substantially parallel to each other. Due to such a constitution, the looper drive mechanism has both of the lockstitching function and the over-edge stitching function and can perform both functions by a single sewing machine.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: November 9, 2004
    Assignee: Suzuki Manufacturing, Ltd.
    Inventor: Sakuma Kouichi
  • Looper and knife driving mechanism for sewing machine
    Publication number: 20020189516
    Abstract: In a looper and cutter drive mechanism for sewing machine, an upper looper and a lower looper are respectively disposed below a throat plate, respective loop-taker points of these loopers are arranged in the same direction such that the loop-taker points pass a front side of the needle as seen in the stitching direction. The upper looper and the lower looper are driven such that the upper looper and the lower looper perform movements having traces on planes substantially parallel to each other. Due to such a constitution, the looper drive mechanism has both of the lockstitching function and the over-edge stitching function and can perform both functions by a single sewing machine.
    Type: Application
    Filed: June 10, 2002
    Publication date: December 19, 2002
    Inventor: Sakuma Kouichi