Patents by Inventor Chiaki Asada

Chiaki Asada 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).

  • Molybdenum base composite materials reinforced with continuous silicon carbide fibers and a method for producing the same
    Patent number: 4180399
    Abstract: Molybdenum base composite materials having high tensile strength and oxidon resistance at high temperatures are produced by piling in parallel and embedding silicon carbide fibers containing 0.01-20% by weight of free carbon, which have been produced by the specific method already disclosed in U.S. patent application Ser. No. 677,960, in molybdenum base metallic powders and by compressing and sintering the assembly.
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: December 25, 1979
    Assignee: The Foundation: The Research Institute for Special Inorganic Materials
    Inventors: Chiaki Asada, Makoto Saito, Hisashi Kajima
  • Cobalt or cobalt alloy composite materials reinforced with continuous silicon carbide fibers and a method for producing the same
    Patent number: 4147538
    Abstract: Cobalt or cobalt alloy composite materials reinforced with continuous silicon carbide fibers, which have a high tensile strength, a low elongation, a high Young modulus and a high tensile strength at a high temperature, are produced by filling spaces in piles of the continuous silicon carbide fibers containing 0.01%-30% by weight of free carbon with melted or powdery metallic cobalt or cobalt alloy and integrating the said fibers with the said metal.
    Type: Grant
    Filed: January 21, 1977
    Date of Patent: April 3, 1979
    Assignee: The Research Institute for Iron, Steel and other Metals of the Tohoku University
    Inventors: Seishi Yajima, Hideo Kayano, Chiaki Asada, Makoto Saito
  • Chromium base alloy composite materials reinforced with continuous silicon carbide fibers and a method for producing the same
    Patent number: 4117565
    Abstract: Chromium base alloy composite materials having high corrosion resistance, idation resistance and tensile strength at high temperatures are produced by laminating and arranging silicon carbide fibers containing 0.01-20% by weight of free carbon, which have been produced by the specific method already disclosed in U.S. patent application Ser. No. 677,960, in volume fraction of 2-50% in chromium base alloy and by compressing and sintering the assembly.
    Type: Grant
    Filed: August 23, 1977
    Date of Patent: October 3, 1978
    Assignee: The Foundation: The Research Institute For Special Inorganic Materials
    Inventors: Chiaki Asada, Katsushi Kusaka, Hisashi Kajima