Patents by Inventor Shoji Onose

Shoji Onose 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).

  • SIC-composite material sleeve and process for producing the same
    Patent number: 6246740
    Abstract: A cylindrical thin-wall sleeve including an SiC fiber-reinforced SiC composite material (SiC/SiC), which has a porosity of 40% or less and a wall thickness of 5 mm or less.
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: June 12, 2001
    Assignees: Japan Nuclear Cycle Development Institute, Nippon Carbon Co., Ltd.
    Inventors: Tadashi Maruyama, Shoji Onose, Shiro Mitsuno
  • Reactor control rod element
    Patent number: 5946367
    Abstract: A neutron absorbing pin including at least, a neutron absorber, a thin-wall pipe surrounding the neutron absorber, and a cladding disposed at a distance from the thin-wall pipe. In the neutron absorbing pin, the difference between the coefficient of thermal expansion (.alpha.1) of the neutron absorber and the coefficient of thermal expansion (.alpha.2) of the thin-wall pipe has an absolute value of .vertline..alpha.2-.alpha.1.vertline..ltoreq.10.times.10.sup.-6 /K.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: August 31, 1999
    Assignee: Japan Nuclear Cycle Development Institute
    Inventors: Tadashi Maruyama, Shoji Onose