Patents by Inventor Tukasa Yamaguchi

Tukasa 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).

  • Sewing machine with supplemental work supporting surface
    Patent number: 4314517
    Abstract: This invention concerns a sewing machine of the kind in which a main base and a supplemental base are provided. The supplemental base is connected to the main base through link mechanisms so as to be either contiguously positioned with respect to the main base or spaced therefrom so as to present a narrower support surface conducive to supporting a tubular fabric.
    Type: Grant
    Filed: January 9, 1979
    Date of Patent: February 9, 1982
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Takahiko Kasahara, Tukasa Yamaguchi, Shigeharu Shichi, Masayuki Kato, Senji Suito