Patents by Inventor Tuyoshi Kokusho

Tuyoshi Kokusho 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 determining components of a welding material having been overlaid onto a cast iron base metal
    Patent number: 5622573
    Abstract: A welding material for hard-facing which is to be hardened by a supercooling treatment after overlaying onto a cast iron base metal has a basic component composition which meets, in an overlaid condition, both a first condition and a second condition. The first condition is that a nickel (Ni) equivalent and a chromium (Cr) equivalent fall within that region to be defined in Schaeffler's structure diagram in which a difference in hardness before and after the supercooling treatment is a predetermined value or above. The second condition is that a starting temperature of martensitic transformation is a predetermined temperature or below.
    Type: Grant
    Filed: March 28, 1995
    Date of Patent: April 22, 1997
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hideaki Ikeda, Tuyoshi Kokusho