Patents by Inventor Mitsuo Wakamatsu

Mitsuo Wakamatsu 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).

  • FUEL ASSEMBLY
    Publication number: 20110261921
    Abstract: A fuel assembly is charged in a reactor core of a nuclear reactor using a liquid metal as a coolant, and includes a wrapper tube storing a plurality of fuel pins and including an entrance nozzle for introducing the coolant and an operation handling head, grids disposed in the wrapper tube to support the fuel pins in the radial direction of the wrapper tube, liner tubes inserted in the wrapper tube to fixedly hold the respective grids in the axial direction of the wrapper tube, and a fixing device for fixing the grids and the liner tubes in the radial direction of the wrapper tube.
    Type: Application
    Filed: December 26, 2006
    Publication date: October 27, 2011
    Applicants: Central Research Institute of Electric Power Ind., KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomonari Koga, Satoshi Nishimura, Izumi Kinoshita, Shoichi Moriya, Yasushi Tsuboi, Mitsuo Wakamatsu, Yoshiaki Sakashita, Masatoshi Nakagawa
  • Fuel assembly
    Patent number: 8040998
    Abstract: A fuel assembly is charged in a reactor core of a nuclear reactor using a liquid metal as a coolant, and includes a wrapper tube storing a plurality of fuel pins and including an entrance nozzle for introducing the coolant and an operation handling head, grids disposed in the wrapper tube to support the fuel pins in the radial direction of the wrapper tube, liner tubes inserted in the wrapper tube to fixedly hold the respective grids in the axial direction of the wrapper tube, and a fixing device for fixing the grids and the liner tubes in the radial direction of the wrapper tube.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: October 18, 2011
    Assignees: Kabushiki Kaisha Toshiba, Central Research Institute of Electric Power Industry
    Inventors: Tomonari Koga, Satoshi Nishimura, Izumi Kinoshita, Shoichi Moriya, Yasushi Tsuboi, Mitsuo Wakamatsu, Yoshiaki Sakashita, Masatoshi Nakagawa