Patents by Inventor Fujio Ueoka

Fujio Ueoka 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).

  • High pressure casting method and a casting core
    Patent number: 4774990
    Abstract: A casting core adapted to be placed inside a molding cavity for defining a cored-out hollow inside a metal casting, which core comprises a first coated layer formed on an exterior surface of the casting core by coating a slurry containing powdery refractory material, and a second coated layer formed over the first coated layer by applying a solution containing graphite particles. A method of making a metal casting with the use of the casting core is also disclosed.
    Type: Grant
    Filed: August 3, 1987
    Date of Patent: October 4, 1988
    Assignee: Mazda Motor Corporation
    Inventors: Yukio Yamamoto, Shunzo Takasuga, Fujio Ueoka, Norio Kodama