Patents by Inventor Minoru Ozaku

Minoru Ozaku 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).

  • Opener for horizontal rotary shuttle
    Patent number: 5456195
    Abstract: A sewing machine having a projection formed on an inner shuttle of a shuttle-inner shuttle assembly to prevent the inner shuttle from being rotated in the same direction in which the shuttle is rotated, thereby providing a gap through which the needle thread passes.
    Type: Grant
    Filed: November 15, 1994
    Date of Patent: October 10, 1995
    Assignee: Juki Corporation
    Inventors: Minoru Ozaku, Toshiaki Takahara
  • Hooking arrangement for two-needle lockstitch sewing machines
    Patent number: 4993335
    Abstract: A two-needle lockstitch sewing machine apparatus providing a hooking arrangement such that each thread loop is positioned in the same direction in relation to the needle position. The hooking arrangement is effective to stitch each left and right stitch line with a needle thread having almost the same degree of twist. Thus, uniform stitch lines are obtained and the "edge effect" which is often experienced when the needle thread passes through the needle eye during stitching is eliminated.
    Type: Grant
    Filed: May 23, 1989
    Date of Patent: February 19, 1991
    Assignee: Juki Corporation
    Inventor: Minoru Ozaku
  • Thread feeding apparatus for multi-needle sewing machine
    Patent number: 4843986
    Abstract: When two stitch lines parallel with the hem of a workpiece are stitched by a multi-needle sewing machine, a thread feeding apparatus positively feeds threads to each needle in proportion to the radius of the stitch line curvature such that well-balanced stitch lines are performed. Sensors located adjacent to said needles, and CPU (Central Processing Unit) operate cooperatively to drive each stepping motor which positively feeds the exactly required stitch length to each needle.
    Type: Grant
    Filed: April 28, 1988
    Date of Patent: July 4, 1989
    Assignee: Juki Corporation
    Inventors: Tadashi Kozuka, Minoru Ozaku, Yuji Yamamoto, Yoichi Ando