Patents by Inventor Ryutaro Jinbo

Ryutaro Jinbo 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).

  • Zirconium alloy having superior corrosion resistance
    Patent number: 4664727
    Abstract: A zirconium alloy having superior corrosion resistance, containing Sn of a small amount not less than the amount of Sn existing in the solid-solution of the zirconium alloy at a room temperature, and at least one kind of Fe and Cr each of a small amount not less than the amount of each of Fe and Cr existing in the solid-solution of the zirconium alloy at a room temperature,the zirconium alloy being annealed after the solution heat treatment at a temperature at which both the .alpha. phase and .beta. phase thereof are included in the zirconium alloy,the total amount of said at least one kind of Fe and Cr existing in the solid-solution of the zirconium alloy being not less than 0.26%.
    Type: Grant
    Filed: June 21, 1983
    Date of Patent: May 12, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Masahisa Inagaki, Ryutaro Jinbo, Keiichi Kuniya, Isao Masaoka, Hideo Maki