Patents by Inventor Kazumi Nakagawa

Kazumi Nakagawa 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).

  • Production of synthetic resin spinnerette
    Patent number: 3980747
    Abstract: A method of producing synthetic resin spinnerettes. Vertically extending synthetic filaments are mounted on a frame structure and placed in a mold. A thermoplastic or themosetting resin is poured into the mold and allowed to set. The molded body is removed from the mold and the filaments are removed therefrom to leave orifices.
    Type: Grant
    Filed: October 14, 1972
    Date of Patent: September 14, 1976
    Assignee: Japan Exlan Company Limited
    Inventors: Kazumi Nakagawa, Keitaro Shimoda, Nobuhiro Tsutsui, Keiichi Zoda