Patents by Inventor Yukio Sanpei

Yukio Sanpei 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).

  • Magnesium alloys
    Publication number: 20080175744
    Abstract: A casting heat-resistance Mg alloy improved in heat resistance without relying upon expensive RE contains Cu. More specifically, it contains Al (8.0 weight %), Cu (1.0-5.0 weight %), Zn (2.0 weight %), Be (0.01 weight %) and Mg (the rest). The alloy can be prevented from deteriorating in corrosion resistance by adjusting the added amount of Cu to 1.0-1.5 weight %. The corrosion resistance of the alloy can be improved more by adding 0.5 to 1.0 weight % Mn as well.
    Type: Application
    Filed: April 16, 2007
    Publication date: July 24, 2008
    Inventors: Tetsuichi Motegi, Yosuke Tamura, Yukio Sanpei