Patents by Inventor Kazuhito Hiroe

Kazuhito Hiroe 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).

  • Method of fabricating an annular tank
    Patent number: 4343426
    Abstract: An annular tank for storing nuclear reaction material in an annular space formed among seamless upper and lower annular dies disposed elevationally in a predetermined space and inner and outer sheaths extended on the inner and outer peripheral surfaces of the upper and lower dies. The tank avoids thermal strain and deformation by forming the upper and lower dies in a seamless manner to thus enhance the heat dissipating effect together with high working accuracy and strength. The method of fabricating the annular tank is simple by omitting the use of jigs for welding the segments with less loss and high production yield.
    Type: Grant
    Filed: February 13, 1980
    Date of Patent: August 10, 1982
    Assignee: Doryokuro Kaku Nenryo Kaihatsu Jigyodan
    Inventors: Katsuyuki Otsuka, Akio Todokoro, Yoshiharu Takahashi, Kazuhito Hiroe, Yoshinobu Ishikawa