Patents by Inventor Hideharu Fukunaga

Hideharu Fukunaga 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).

  • Powdery mold-releasing lubricant for use in casting with a mold and a mold casting method
    Patent number: 6589919
    Abstract: A powdery mold-releasing lubricant according to the present invention uses a powdery mixture of a powdery organic material, which is evaporated or decomposed by heating to generate a gas, and a powdery inorganic material. A gas-solid mixed layer formed with the gas generated from the powdery mixture and the powdery inorganic material is used as a heat-insulating boundary layer. The powdery mold-releasing lubricant is inexpensive and has a superior mold lubricity.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: July 8, 2003
    Assignees: Hiroshima University, Hanano Corporation
    Inventors: Hideharu Fukunaga, Makoto Yoshida, Takami Sawai
  • Ceramic-reinforced metal-based composite material and a method for producing the same
    Patent number: 6544636
    Abstract: A ceramic metal-reinforced metal-based composite material produced by impregnating, under pressure, a semi-molten alloy having a solid phase and a liquid phase coexistent with each other into a preliminarily molded body composed of ceramic whiskers or ceramic particles.
    Type: Grant
    Filed: August 4, 1999
    Date of Patent: April 8, 2003
    Assignee: Hiroshima University
    Inventors: Hideharu Fukunaga, Makoto Yoshida
  • Method for fabricating a ceramic based composite material
    Publication number: 20030057584
    Abstract: A preform is made by bundling up fibers, and then, immersed into a ceramic slurry to form a fiber compact. Then, a tansformable ceramic material is infiltrated into voids of the fiber compact to fabricate a ceramic based fiber-reinforced composite material.
    Type: Application
    Filed: June 7, 2002
    Publication date: March 27, 2003
    Applicant: Hiroshima University
    Inventors: Makoto Yoshida, Hideharu Fukunaga, Gen Sasaki, Kenya Nagahisa, Kazuya Kitatani
  • Preforms, metal matrix composite materials using said preforms, and producing processes thereof
    Patent number: 6521061
    Abstract: A porous preform includes at least one kind of preform-forming materials of ceramic particles, ceramic fibers and ceramic whiskers, and a film of a binder formed on a surface of said at least one kind of the preform-forming materials and comprising magnesium or a magnesium alloy. The preform is used for producing a metal matrix composite material.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: February 18, 2003
    Assignee: Hiroshima University
    Inventors: Hideharu Fukunaga, Gen Sasaki, Makoto Yoshida, Jin Pan
  • Powdery mold-releasing lubricant for use in casting with a mold and a mold casting method
    Publication number: 20020022580
    Abstract: A powdery mold-releasing lubricant according to the present invention uses a powdery mixture of a powdery organic material, which is evaporated or decomposed by heating to generate a gas, and a powdery inorganic material. A gas-solid mixed layer formed with the gas generated from the powdery mixture and the powdery inorganic material is used as a heat-insulating boundary layer. The powdery mold-releasing lubricant is inexpensive and has a superior mold lubricity.
    Type: Application
    Filed: June 12, 2001
    Publication date: February 21, 2002
    Inventors: Hideharu Fukunaga, Makoto Yoshida, Takami Sawai