Patents by Inventor Takuma Anazawa

Takuma Anazawa 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 making a hollow cast article by the lost wax method
    Patent number: 6119761
    Abstract: A method to suppress displacement of the core during casting when making hollow blades by applying the lost wax method using a core. A wax pattern is made which comprises a core and a layer of wax covering the core. Then at least one pin of the same material as the blade is inserted into the wax layer such that this pin engages the core and part of the pin projects from the outer surface of the wax layer, after which, with the portion of the pin which projects from the outer surface of the wax layer being held in a casting mold, the wax is removed, followed by casting.
    Type: Grant
    Filed: August 7, 1997
    Date of Patent: September 19, 2000
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takuma Anazawa, Hisayoshi Harada