Patents by Inventor Zen Sakaguchi

Zen Sakaguchi 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).

  • Apparatus for controlling the feed of yarn
    Patent number: 4221317
    Abstract: A method and apparatus for feeding yarn during a single stitch of a needle such that the mean rotational frequency of a yarn feeding drum connected to a first and second driving member is changed during the single stitch of the needle so as to regulate and control the feeding of the yarn and provide a maximum and minimum yarn length in the resulting stitch or selectively provide a yarn length between the maximum or minimum length.
    Type: Grant
    Filed: July 12, 1979
    Date of Patent: September 9, 1980
    Assignee: Hiraoka Kogyo Kabushiki Kaisha
    Inventors: Minoru Fukada, Zen Sakaguchi, Kenichi Hasegawa