Patents by Inventor Mituo Hino

Mituo Hino 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).

  • Aluminum alloy sheet having good weldability, filiform corrosion resistance, formability, and bake-hardenability, and a method for manufacturing the same
    Patent number: 4909861
    Abstract: An aluminum alloy sheet according to the present invention essentially consists of an aluminum alloy containing 0.5 to 1.4% magnesium, 0.6 to 1.5% silicon, and 0.005 to 0.1% titanium, all by weight, and aluminum and inevitable impurities for the remainder, and is adjusted so that the ratio of the silicon content to the magnesium content is 0.65 or more. The average crystal grain size and the electric conductivity of the aluminum alloy sheet are 70 .mu.m or less and 43 to 51% IACS, respectively.The composition of the aluminum alloy is adjusted in this manner, and the crystal grain size and the electric conductivity are restricted within the specific ranges by controlling the manufacturing conditions. Thus, there may be provided an aluminum alloy sheet which is improved in arc-weldability and resistance to filiform corrosion, as well as in formability and bake-hardenability at low temperature.
    Type: Grant
    Filed: September 2, 1988
    Date of Patent: March 20, 1990
    Assignees: Kabushiki Kaisha Kobe Seiko Sho, Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yasuo Muraoka, Mituo Hino, Yasunori Sasaki, Seiji Sasabe