Patents by Inventor Toshifumi Naito

Toshifumi Naito 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).

  • Foreign matter filter for fuel assembly in pressurized water reactor
    Patent number: 6901128
    Abstract: A foreign matter filter provided between a DFBN and a lower grid has two adjacent thin straps assembled into a lattice. The straps are equipped on the front and back sides with axially continuous protrusions.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: May 31, 2005
    Assignees: Mitsubishi Heavy Industries, Ltd., Mitsubishi Nuclear Fuel Co., Ltd.
    Inventors: Masaji Mori, Juntaro Shimizu, Kazuki Monaka, Takashi Shimomura, Kimio Nakayama, Toshifumi Naito
  • Foreign matter filter for fuel assembly in pressurized water reactor
    Publication number: 20050031067
    Abstract: A foreign matter filter provided between a DFBN and a lower grid has two adjacent thin straps assembled into a lattice. The straps are equipped on the front and back sides with axially continuous protrusions.
    Type: Application
    Filed: August 30, 2004
    Publication date: February 10, 2005
    Applicants: MITSUBISHI HEAVY INDUSTRIES LTD., MITSUBISHI NUCLEAR FUEL CO., LTD.
    Inventors: Masaji Mori, Juntaro Shimizu, Kazuki Monaka, Takashi Shimomura, Kimio Nakayama, Toshifumi Naito
  • Foreign matter filter for fuel assembly in pressurized water reactor
    Publication number: 20030043954
    Abstract: A foreign matter filter provided between a DFBN and a lower grid has two adjacent thin straps assembled into a lattice. The straps are equipped on the front and backsides with axially continuous protrusions.
    Type: Application
    Filed: July 22, 2002
    Publication date: March 6, 2003
    Applicant: MITSUBISHI HEAVY INDUSTRIES LTD.
    Inventors: Masaji Mori, Juntaro Shimizu, Kazuki Monaka, Takashi Shimomura, Kimio Nakayama, Toshifumi Naito