Patents by Inventor Sumiyo Uzawa

Sumiyo Uzawa 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).

  • Printing wire
    Patent number: 4652157
    Abstract: A printing wire comprises a wire main body made of a sintered super hard alloy containing a hard alloy powder, whose major constituent is carbide powder, and a binder phase comprising at least one element selected from the group consisting of nickel and cobalt; and an alloy layer formed on the entire surface of the wire main body, which contains nickel as a major constituent and has nickel phosphide or nickel boride precipitated therein, or an alloy layer which contains cobalt as a major constituent and has cobalt phosphide or cobalt boride precipitated therein.
    Type: Grant
    Filed: December 13, 1984
    Date of Patent: March 24, 1987
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Sumiyo Uzawa, Tetsuo Fujiwara, Isao Suzuki, Akira Endo