Patents by Inventor Harutoshi Matsuyama

Harutoshi Matsuyama 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).

  • Heat resistant magnesium die casting alloys
    Publication number: 20060222556
    Abstract: A heat resistant magnesium die casting alloy simultaneously improved in heat resistance and castability and expanded in range of application is provided. It comprises, includes, by wt %, the following composition: Al: over 6% to not more than 10 %, Ca: 1.8 to 5%, Sr: 0.05 to 1.0%, Mn: 0.1 to 0.6%, and Bal: Mg and unavoidable impurities, the ratio Ca/Al of the Ca content to the Al content being 0.3 to 0.5. To improve the corrosion resistance, 0.1 to 3% of a RE may also be added.
    Type: Application
    Filed: September 16, 2004
    Publication date: October 5, 2006
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takumi Hijii, Tomoyasu Kitano, Koichi Ohori, Yusuke Nakaura, Harutoshi Matsuyama