Patents Examined by J. N. Gray
  • Carbon fibers having high strength and high modulus of elasticity and polymer composition for their production
    Patent number: 5277973
    Abstract: Silicon-containing carbide fibers having high strength and modulus of elasticity, and polymer compositions for production thereof. These fibrers are inexpensive and very useful as reinforcing fibers for composite materials comprising plastics, carbon, metals, etc. as a matrix. These polymer compositions are also useful as a matrix of the above composite materials.
    Type: Grant
    Filed: April 11, 1990
    Date of Patent: January 11, 1994
    Assignee: Ube Industries, Ltd.
    Inventors: Takemi Yamamura, Junichi Kugimoto, Toshihiro Ishikawa, Yasuhiro Sioji, Masaki Shibuya