Patents by Inventor Kouji Mineshita

Kouji Mineshita 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).

  • Method of producing cast-iron product
    Patent number: 5122197
    Abstract: A cast-iron product has a composition of 4.3-4.9 wt. % Carbon Equivalent (CE), 0.25-0.5 wt. % Chromium (Cr), 0.05-0.12 wt. % Tin (Sn), 0.4-1.2 wt. % Manganese (Mn), 0-0.1 wt. % Phosphorus (P), and 0-0.15 wt. % Sulfur (S), with the balance being Iron (Fe). A brake assembly comprises a sliding element made of such a cast iron, and the sliding element is adapted to slideably contact with a friction element or elements made of non-asbestos material and constitute the assembly. Further, a method of producing a cast iron product comprises the steps of casting a cast iron having a composition of 4.3-4.9 wt. % Carbon Equivalent (CE), 0.25-0.5 wt. % Chromium (Cr), 0.05-0.12 wt. % Tin (Sn), 0.4-1.2 wt. % Manganese (Mn), 0-0.1 wt. % Phosphorus (P), and 0-0.15 wt. % Sulfur (S), with the balance being Iron (Fe), releasing a mold at a temperature not less than A.sub.1 allotropic transformation temperature, and cooling the cast iron at a relatively high cooling rate.
    Type: Grant
    Filed: August 28, 1990
    Date of Patent: June 16, 1992
    Assignee: Mazda Motor Corporation
    Inventors: Hiroshi Asai, Ichiro Kitayama, Kouji Mineshita, Ken Okazaki, Akira Ohtsuka, Yuichi Nishiyama, Yasuo Uosaki