Patents by Inventor Kiyokazu Hosoya

Kiyokazu Hosoya 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).

  • Apparatus and a method for handling a control rod
    Patent number: 5331675
    Abstract: A control rod handling apparatus and method for exchanging a control rod connected to a control rod drive mechanism by a bayonet coupling. The control rod handling apparatus comprises a member or connection to a fuel exchange apparatus, a fixing part having guides to be seated at the top face of an upper grid plate in a reactor vessel and to e supported by the upper rid plate, a body provided at the lower part of the fixing part, a control rod handling part having a control rod grasping instrument provided at the bottom part of the body, a fuel support piece handling part having a fuel support piece grasping instrument and means for positioning the fuel support piece grasping instrument, which is provided outside the control rod handling part, means for vertically moving the fuel support piece handling part along with the outside of the control rod handling part, and means for rotating the control rod handling part, the fuel support piece handling part, and the means for vertical motion.
    Type: Grant
    Filed: August 24, 1993
    Date of Patent: July 19, 1994
    Assignee: Hitachi, Ltd.
    Inventors: Kiyokazu Hosoya, Toshihiro Kodama, Takahiro Konno