Patents by Inventor Katsuyoshi Wakamoto

Katsuyoshi Wakamoto 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 producing thin plate of phosphor bronze
    Patent number: 4927467
    Abstract: A method for continuous production of thin plate ingot of phosphor bronze by quenching molten metal of bronze, wherein molten metal of phosphor bronze is quenched at a rate of from 10.sup.2 .degree. C./sec. to 10.sup.5 .degree. C./sec. to thereby solidify the same, and then the solidified metal is continuously cooled to a normal temperature to thereby obtain a microstructure having a crystal grain size of 50 .mu.m or below and in which appearance of the dendritic structure and the segregation layer is suppressed.
    Type: Grant
    Filed: February 10, 1988
    Date of Patent: May 22, 1990
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Takaji Kusakawa
    Inventors: Takaji Kusakawa, Katsuyoshi Wakamoto, Mitsuyuki Imaizumi