Patents by Inventor Masao Maesato

Masao Maesato 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).

  • Water jacket of arc furnace
    Patent number: 6563855
    Abstract: A metal-made water-cooling jacket for electric arc furnaces, characterized by comprising an Al diffusion layer having a thickness ranging from 200 to 800 &mgr;m, the Al concentration of the outermost surface of the Al diffusion layer being from 10 to 50 wt. %, formed on the surface of the metal by calorizing treatment.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: May 13, 2003
    Assignee: Shinto Kogyo Kabushiki Kaisha
    Inventors: Makoto Nishi, Masao Maesato, Tosirou Takami