Patents by Inventor Shigenori Murate

Shigenori Murate 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).

  • Process of contouring the edges of a ceramic rotor
    Patent number: 4689921
    Abstract: A method of improving the impact resistance of a ceramic turbine rotor by rotating the rotor in a number of abrasive grindstones such that the edges of the rotor are rounded to a radius in the range of about 0.2 to 1 mm.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: September 1, 1987
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Shigenori Murate, Yoshinori Hattori