Patents by Inventor Shigeyoshi Miyahara

Shigeyoshi Miyahara 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).

  • Concrete cask and method for manufacturing thereof
    Patent number: 7119349
    Abstract: It is an object of the present invention to obtain a containment concrete cask which has heat removal capacity maintained at the conventional level or beyond it and which prevents radiation from leaking to the outside. In a concrete cask, a shielding body composed of concrete and heat transfer fins made from metal are provided between an inner shell and an outer shell made from metal, and an accommodation portion for accommodating a radioactive substance is provided inside the inner shell. The accommodation portion has a containment structure to be insulated from the outside of the cask. In the heat transfer fins, the portions thereof at the outer shellside are provided in contact with the outer shell and the portions thereof at the inner shell side are cut so as to form a separation portion with respect to the inner shell.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: October 10, 2006
    Assignees: Kabushiki Kaisha Kobe Seiko Sho, Taisei Corporation
    Inventors: Jun Shimojo, Hiroaki Taniuchi, Yutaka Sugihara, Eiji Owaki, Akihito Hata, Katsuhiko Hirakawa, Shigeyoshi Miyahara
  • CONCRETE CASK AND METHOD FOR MANUFACTURING THEREOF
    Publication number: 20060219960
    Abstract: It is an object of the present invention to obtain a containment concrete cask which has heat removal capacity maintained at the conventional level or beyond it and which prevents radiation from leaking to the outside. In a concrete cask, a shielding body composed of concrete and heat transfer fins made from metal are provided between an inner shell and an outer shell made from metal, and an accommodation portion for accommodating a radioactive substance is provided inside the inner shell. The accommodation portion has a containment structure to be insulated from the outside of the cask. In the heat transfer fins, the portions thereof at the outer shellside are provided in contact with the outer shell and the portions thereof at the inner shell side are cut so as to form a separation portion with respect to the inner shell.
    Type: Application
    Filed: January 30, 2004
    Publication date: October 5, 2006
    Inventors: Jun Shimojo, Hiroaki Taniuchi, Yutaka Sugihara, Eiji Owaki, Akihito Hata, Katsuhiko Hirakawa, Shigeyoshi Miyahara