Patents by Inventor Mikio Obayashi

Mikio Obayashi 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 for sulfurizing cast iron
    Patent number: 4230507
    Abstract: Cast iron is pretreated in an aqueous solution of nitric acid and then immersed in molten sulfur until a sulfurized layer is formed on its surface. The sulfurized layer is very thick and stable and has excellent molten aluminum resistance. Its uniformity is further improved by a subsequent diffusion treatment at elevated temperatures.
    Type: Grant
    Filed: May 22, 1979
    Date of Patent: October 28, 1980
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Mikio Obayashi, Naoyoshi Watanabe
  • Alloy for a high temperature fuse
    Patent number: 3940728
    Abstract: An alloy for use as a fuse element in a high temperature fuse characterized by having a high resistance to corrosion and a melting point at a fixed temperature within a range of 1000.degree. to 1100.degree.C. The alloy consists of copper containing 10-14% aluminum and 0-2.5% of a second constituent which second constituent consists of one or more metals selected from a group consisting of nickel, manganese and iron. The alloy also has desirable hardness and good workability to enable fabrication of the alloy into a fused element.
    Type: Grant
    Filed: August 3, 1973
    Date of Patent: February 24, 1976
    Assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Nippondenso Co., Ltd.
    Inventors: Noboru Komatsu, Mikio Obayashi, Minoru Doi, Nobuyoshi Ota, Yoshio Iwai