Patents by Inventor Masamitu Sibuya

Masamitu Sibuya 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
    Patent number: D255360
    Type: Grant
    Filed: September 1, 1978
    Date of Patent: June 10, 1980
    Assignee: Tokyo Juki Kogyo Kabushiki Kaisha
    Inventors: Masamitu Sibuya, Shigemasa Katou, Masahiro Tanaka