Patents by Inventor Yukiaki Hidaka

Yukiaki Hidaka 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).

  • Method of removing retainer of jet pump and jet pump
    Patent number: 8724767
    Abstract: A retainer provided at lower portion of a pump beam of a jet pump for circulating cooling water to a reactor core or a bolt for fastening the retainer is cut through an underwater-remote control to remove the bolt and the retainer is removed through the underwater-remote control.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: May 13, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hajime Mori, Kunihiko Kinugasa, Yukiaki Hidaka, Masaru Ukai
  • METHOD OF REMOVING RETAINER OF JET PUMP AND JET PUMP
    Publication number: 20120240397
    Abstract: A retainer provided at lower portion of a pump beam of a jet pump for circulating cooling water to a reactor core or a bolt for fastening the retainer is cut through an underwater-remote control to remove the bolt and the retainer is removed through the underwater-remote control.
    Type: Application
    Filed: June 5, 2012
    Publication date: September 27, 2012
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Hajime MORI, Kunihiko KINUGASA, Yukiaki HIDAKA, Masaru UKAI
  • APPARATUS AND METHOD FOR REINFORCING PIPING ARRANGEMENT OF REACTOR CORE SPRAY SYSTEM
    Publication number: 20120087456
    Abstract: A reinforcing device includes a clamp that is disposed on an outer side of a welded portion of a core spray system piping and holds the core spray system piping at axially symmetrical points on an outer surface thereof, the piping being located on opposite sides of a weld line of the welded portion and also includes a bolt that is provided on the clamp so as to serve as a mechanical fastening mechanism applying a compressive force to the welded portion from the outside of the core spray system piping.
    Type: Application
    Filed: December 16, 2011
    Publication date: April 12, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Naotaka Suganuma, Masakazu Abura, Kazuo Sudo, Satoshi Sato, Haruhiko Hata, Yukiaki Hidaka, Keiji Matsunaga, Kanemi Hirose
  • APPARATUS AND METHOD FOR REINFORCING PIPING ARRANGEMENT OF REACTOR CORE SPRAY SYSTEM
    Publication number: 20110101177
    Abstract: A reinforcing device includes a clamp that is disposed on an outer side of a welded portion of a core spray system piping and holds the core spray system piping at axially symmetrical points on an outer surface thereof, the piping being located on opposite sides of a weld line of the welded portion and also includes a bolt that is provided on the clamp so as to serve as a mechanical fastening mechanism applying a compressive force to the welded portion from the outside of the core spray system piping.
    Type: Application
    Filed: April 22, 2009
    Publication date: May 5, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Naotaka Suganuma, Masakazu Abura, Kazuo Sudo, Satoshi Sato, Haruhiko Hata, Yukiaki Hidaka, Keiji Matsunaga, Kanemi Hirose
  • METHOD OF REMOVING RETAINER OF JET PUMP AND JET PUMP
    Publication number: 20100206147
    Abstract: A retainer provided at lower portion of a pump beam of a jet pump for circulating cooling water to a reactor core or a bolt for fastening the retainer is cut through an underwater-remote control to remove the bolt and the retainer is removed through the underwater-remote control.
    Type: Application
    Filed: February 3, 2010
    Publication date: August 19, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hajime MORI, Kunihiko Kinugasa, Yukiaki Hidaka, Masaru Ukai
  • METHOD OF REMOVING RETAINER OF JET PUMP AND JET PUMP
    Publication number: 20080085194
    Abstract: A retainer provided at lower portion of a pump beam of a jet pump for circulating cooling water to a reactor core or a bolt for fastening the retainer is cut through an underwater-remote control to remove the bolt and the retainer is removed through the underwater-remote control.
    Type: Application
    Filed: July 23, 2007
    Publication date: April 10, 2008
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hajime Mori, Kunihiko Kinugasa, Yukiaki Hidaka, Masaru Ukai