Patents by Inventor Megumi AKIMOTO

Megumi AKIMOTO 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).

  • Channel box and fuel assembly
    Patent number: 11862352
    Abstract: A channel box has a hollow elongated portion and accommodates a plurality of nuclear reactor fuel rods inside the hollow elongated portion, wherein the hollow elongated portion is constituted by a plurality types of silicon carbide composite materials. The channel box has a shape that can be achieved by applying the silicon carbide composite material and can increase earthquake resistance and improve functions and performance as a fuel assembly.
    Type: Grant
    Filed: February 2, 2022
    Date of Patent: January 2, 2024
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Toshiki Nishimura, Satoko Tajima, Megumi Akimoto, Shoko Suyama, Masaru Ukai
  • Eddy current flaw detection device and eddy current flaw detection method
    Patent number: 11598750
    Abstract: An eddy current flaw detection device according to an embodiment includes: a first exciter/detector that is supplied with alternating current and can induce eddy current in a tested object by generating a magnetic field change in the tested object; a second exciter/detector disposed opposite side of the first exciter/detector sandwiching the tested object therebetween. The second exciter/detector can detect a change in a reactive magnetic field generated by the eddy current. The first and second exciter/detectors each may have a coil including a helical coil wire, and the coil wire of the first exciter/detector may be thicker than the coil wire of the second exciter/detector.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: March 7, 2023
    Assignee: Toshiba Energy Systems & Solutions Corporation
    Inventors: Noriyasu Kobayashi, Jun Semboshi, Megumi Akimoto, Masaru Ukai
  • CHANNEL BOX AND FUEL ASSEMBLY
    Publication number: 20220301730
    Abstract: A channel box has a hollow cylindrical portion and accommodates a plurality of nuclear reactor fuel rods inside the hollow cylindrical portion, wherein the hollow cylindrical portion is constituted by a plurality types of silicon carbide composite materials. The channel box has a shape that can be achieved by applying the silicon carbide composite material and can increase earthquake resistance and improve functions and performance as a fuel assembly.
    Type: Application
    Filed: February 2, 2022
    Publication date: September 22, 2022
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Toshiki NISHIMURA, Satoko TAJIMA, Megumi AKIMOTO, Shoko SUYAMA, Masaru UKAI
  • EDDY CURRENT FLAW DETECTION DEVICE AND EDDY CURRENT FLAW DETECTION METHOD
    Publication number: 20210172908
    Abstract: An eddy current flaw detection device according to an embodiment includes: a first exciter/detector that is supplied with alternating current and can induce eddy current in a tested object by generating a magnetic field change in the tested object; a second exciter/detector disposed opposite side of the first exciter/detector sandwiching the tested object therebetween. The second exciter/detector can detect a change in a reactive magnetic field generated by the eddy current. The first and second exciter/detectors each may have a coil including a helical coil wire, and the coil wire of the first exciter/detector may be thicker than the coil wire of the second exciter/detector.
    Type: Application
    Filed: January 25, 2021
    Publication date: June 10, 2021
    Applicant: TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Noriyasu KOBAYASHI, Jun SEMBOSHI, Megumi AKIMOTO, Masaru UKAI