Patents by Inventor Takahumi Tanaka

Takahumi Tanaka 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).

  • Fabric edge trace stitching system
    Patent number: 4966090
    Abstract: A fabric edge trace stitching system in combination with an electronically controlled zigzag sewing machine comprising a driving actuator for changing the relative position of the needle and the work fabric in the direction perpendicular to the fabric feed direction, is for forming a seam tracing along an edge of the work fabric, and comprises a fabric edge detecting device, a trace width setting device, a signal compensating device for forming a smooth and approximate seam as the plain seam or a precise seam as the stitch seam, a stitch position control decive for controlling a stitching position of the needle through a swing control device, and a switching device for selecting one of the signal processing devices in the signal compensating device.
    Type: Grant
    Filed: August 30, 1989
    Date of Patent: October 30, 1990
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Takahumi Tanaka, Nobuyasu Ooshima