Patents by Inventor Naganori Ueda

Naganori Ueda 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).

  • Method and apparatus for adjusting the stitch length on a circular knitting machine
    Patent number: 5511392
    Abstract: A method of and circular knitting machine for producing a knit fabric having more uniform stitches including yarn feeders feeding a plurality of yarns to stitch forming instrumentalities, the spacing of which affects stitch length and which is subject to change during operation of the knitting machine, a sensor for sensing the tension in the plurality of yarns which changes with changes in the spacing of the stitch forming instrumentalities, and generating a signal indicative of the average tension in the yarns, a comparator for comparing the sensor signal with a pre-set desired tension, a convertor for converting the comparison result into a drive signal, and an adjuster adjusting the spacing of the stitch forming instrumentalities responsive to the drive signal.
    Type: Grant
    Filed: November 3, 1994
    Date of Patent: April 30, 1996
    Assignee: Precision Fukuhara Works, Ltd.
    Inventors: Masatoshi Sawazaki, Takao Shibata, Yoshiaki Igarashi, Kiyoshi Hayashi, Naganori Ueda