Patents by Inventor Toshihide Hibino

Toshihide Hibino 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).

  • Melt-processable copolyamides having aromatic amide unit and fibers prepared therefrom
    Patent number: 4385170
    Abstract: A melt-processable copolyamide prepared from diamines and dicarboxylic acids by a melt-polymerization process, wherein said copolyamide contains from about 1 to 20 mol % of an aromatic amide unit having the formula ##STR1## wherein X and Y are aromatic units with extended bonds, such as 1,4-phenylene group. This copolyamide provides fiber with higher stiffness.
    Type: Grant
    Filed: May 29, 1981
    Date of Patent: May 24, 1983
    Assignee: Unitika Ltd.
    Inventors: Matsuo Hirami, Kazushige Kudo, Tsutomu Sugie, Toshihide Hibino, Ryoichi Tsurutani, Shigemitsu Murase