Patents by Inventor Hirotoshi Matsumura

Hirotoshi Matsumura 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 SUPPORTING ATTACHMENT AND FUEL INLET MECHANISM
    Publication number: 20080130820
    Abstract: A fuel inlet mechanism to introduce a coolant into a fuel assembly configured to be charged in a light water nuclear reactor, includes, a filter catching a foreign substance included in the coolant on an upstream side of the fuel assembly, the filter having a plurality of through holes to pass the coolant, and the through holes having an inlet portion, an outlet portion and at least one bent portion to a degree by which the outlet portion cannot be seen through from the inlet portion by a straight line.
    Type: Application
    Filed: September 10, 2007
    Publication date: June 5, 2008
    Inventors: Masaru UKAI, Kosaku Tsumita, Ryoma Kato, Kenjiro Fukamichi, Yuji Yamada, Makoto Sato, Tadaaki Shimazu, Tomoharu Tanabe, Hirotoshi Matsumura, Keiji Matsunaga, Ken Okuda
  • Fuel supporting attachment and fuel inlet mechanism
    Publication number: 20050276367
    Abstract: A fuel inlet mechanism to introduce a coolant into a fuel assembly configured to be charged in a light water nuclear reactor, includes, a filter catching a foreign substance included in the coolant on an upstream side of the fuel assembly, the filter having a plurality of through holes to pass the coolant, and the through holes having an inlet portion, an outlet portion and at least one bent portion to a degree by which the outlet portion cannot be seen through from the inlet portion by a straight line.
    Type: Application
    Filed: August 22, 2005
    Publication date: December 15, 2005
    Inventors: Masaru Ukai, Kosaku Tsumita, Ryoma Kato, Kenjiro Fukamichi, Yuji Yamada, Makoto Sato, Tadaaki Shimazu, Tomoharu Tanabe, Hirotoshi Matsumura, Keiji Matsunaga, Ken Okuda
  • Fuel supporting attachment and fuel inlet mechanism
    Publication number: 20030026381
    Abstract: A fuel inlet mechanism to introduce a coolant into a fuel assembly configured to be charged in a light water nuclear reactor, includes, a filter catching a foreign substance included in the coolant on an upstream side of the fuel assembly, the filter having a plurality of through holes to pass the coolant, and the through holes having an inlet portion, an outlet portion and at least one bent portion to a degree by which the outlet portion cannot be seen through from the inlet portion by a straight line.
    Type: Application
    Filed: July 15, 2002
    Publication date: February 6, 2003
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masaru Ukai, Kosaku Tsumita, Ryoma Kato, Kenjiro Fukamichi, Yuji Yamada, Makoto Sato, Tadaaki Shimazu, Tomoharu Tanabe, Hirotoshi Matsumura, Keiji Matsunaga, Ken Okuda