Patents by Inventor Nobuaki Yokoyama

Nobuaki Yokoyama 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).

  • Yarn changing device in a flat-bed knitting machine
    Patent number: 4111007
    Abstract: A yarn changing device for use in a flat-bed knitting machine having a carriage. The yarn changing device provides a relatively simple but effective arrangement for repetitive, alternating selection of any one of three or more yarns for knitting operation upon such successive reciprocation of the machine carriage.
    Type: Grant
    Filed: November 16, 1977
    Date of Patent: September 5, 1978
    Assignee: Silver Seiko Ltd.
    Inventor: Nobuaki Yokoyama