Patents by Inventor Saeko Yamaguchi

Saeko Yamaguchi 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).

  • Tow opening apparatus
    Patent number: 4120079
    Abstract: A tow opening apparatus for opening tow of chemical filaments wherein a plurality of opening disks each with the interior peripheral surface formed with a plurality of small ridges and valleys and a plurality of opening disks each with the peripheral surface formed with a plurality of ridges and valleys are alternately disposed and vertically spaced apart from each other by a suitable distance, and tow filaments are brought into alternate contact with the interior peripheral surfaces of the opening rings and the peripheral surfaces of the opening disks whereby said filaments are opened and oriented in parallel relationship.
    Type: Grant
    Filed: October 11, 1977
    Date of Patent: October 17, 1978
    Assignee: Tokyo Institute of Technology
    Inventors: Masataka Yamaguchi, Saeko Yamaguchi, Tadashi Ohokubo