Patents by Inventor Masao Sekine

Masao Sekine 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 for manufacturing uranium dioxide powder
    Patent number: 4505882
    Abstract: A process for manufacturing uranium dioxide powder which comprises forming fine uranium dioxide powder having a high sinterability and coarse uranium dioxide powder having a low sinterability continuously in one process by changing periodically the precipitation condition of the ammonium diuranate under the same condition of calcining and reducing of the ammonium diuranate. The thus obtained mixture of these uranium dioxide powders is suitable for uranium dioxide pellet which is a fuel of nuclear power reactor.
    Type: Grant
    Filed: March 24, 1983
    Date of Patent: March 19, 1985
    Assignee: Mitsubishi Nuclear Fuel Co., Ltd.
    Inventors: Shin-ich Hasegawa, Eiji Takano, Masao Sekine