Patents by Inventor Norimasa Hosaka

Norimasa Hosaka 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).

  • Patterning unit of warp knitting machine and control method thereof
    Patent number: 5873267
    Abstract: The present invention provides a patterning unit of a warp knitting machine having a holding member with a stator of a linear pulse motor disposed thereon and a plurality of moving elements provided at arbitrary intervals on the holding member with parts of the moving elements being constructed as guide points. A control method increases reliability and accuracy of positioning the moving elements and eliminates erroneous operation such as step-out by providing a position sensor related to poles of the stator and by exciting movement of the moving elements on a step by step basis based upon positions of the moving elements. The control method includes providing the moving elements each with a linear motor coil assembly for functioning in conjunction with the stator, defining the poles, to move the moving elements along the holding member.
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: February 23, 1999
    Assignee: Nippon Mayer Co., Ltd.
    Inventors: Yoshinori Otobe, Yasumasa Narikiyo, Shigeo Yamagata, Norimasa Hosaka