Patents by Inventor Susumu Minowa

Susumu Minowa 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).

  • Method for manufacture of investment shell mold suitable for casting grain-oriented super alloy
    Patent number: 4557316
    Abstract: A method for the manufacture of an investment shell mold is disclosed which comprises applying to the surface of a wax pattern at least one layer of slurry formed by dissolving in an organic solvent a soluble organic cellulose derivative containing a dispersed metallic oxide, subsequenty applying to the first layer at least one layer of slurry formed by mixing a refractory powder with a cellulose binder, and thereafter causing the applied slurry layers to set and removing the pattern by the ordinary method.
    Type: Grant
    Filed: June 29, 1984
    Date of Patent: December 10, 1985
    Assignees: Agency of Industrial Science & Technology, Ministry of International Trade & Industry
    Inventors: Takeshi Takayanagi, Shizuo Suzuki, Susumu Minowa, Yoshihiko Nozaki