Patents by Inventor Shiho Fujita

Shiho Fujita 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).

  • Core inlet structure for coolant
    Publication number: 20030185334
    Abstract: A core inlet structure for coolant disposed in a reactor pressure vessel of a boiling water reactor includes a core support plate provided with a plurality of fuel support holes, a reinforcing beam supporting the core support plate, a plurality of control rod guide pipes standing perpendicularly and having upper end portions fitted to the fuel support holes, and a fuel support member inserted into upper end portions of the control rod guide pipes and supported by the core support plate so as to support lower end portions of fuel assemblies. An inlet orifice is formed to the fuel support member so as to adjust flow rate of a coolant flowing in the fuel assemblies, and a vortex control structure is provided for the inlet orifice or provided at a portion on a coolant upstream side of the inlet orifice.
    Type: Application
    Filed: April 1, 2003
    Publication date: October 2, 2003
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Toshihiro Fujii, Shiho Fujita, Akira Mototani, Hideo Komita, Miyuki Akiba, Tadashi Narabayashi, Masaru Ukai, Shinichi Morooka, Tetsuzo Yamamoto, Ryoma Kato