Patents by Inventor Toshiya Kido

Toshiya Kido 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).

  • Production method for a nuclear fuel assembly support grid and a nuclear fuel assembly support grid produced by the same
    Patent number: 6909766
    Abstract: One object of the present invention is to provide a production method for a nuclear fuel assembly support grid that improves the corrosion resistance of welded parts without impairing the characteristics of the support grid so as to be able adequately withstand highly efficient operation. In order to achieve the object, the present invention provide a production method for a nuclear fuel assembly support grid comprising the steps of: assembling a plurality of straps in a grid form; welding intersections of each strap; and carrying out annealing thereafter to precipitate an intermetallic compound on the welded parts.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: June 21, 2005
    Assignees: Mitsubishi Nuclear Fuel Co., Ltd., Mitsubishi Heavy Industries, Ltd., Nuclear Development Corporation
    Inventors: Toshiya Kido, Kimio Nakayama, Yasunao Yamaguchi
  • PRODUCTION METHOD FOR A NUCLEAR FUEL ASSEMBLY SUPPORT GRID AND A NUCLEAR FUEL ASSEMBLY SUPPORT GRID PRODUCED BY THE SAME
    Publication number: 20040076256
    Abstract: One object of the present invention is to provide a production method for a nuclear fuel assembly support grid that improves the corrosion resistance of welded parts without impairing the characteristics of the support grid so as to be able adequately withstand highly efficient operation. In order to achieve the object, the present invention provide a production method for a nuclear fuel assembly support grid comprising the steps of: assembling a plurality of straps in a grid form; welding intersections of each strap; and carrying out annealing thereafter to precipitate an intermetallic compound on the welded parts.
    Type: Application
    Filed: November 5, 2002
    Publication date: April 22, 2004
    Applicants: MITSUBISHI NUCLEAR FUEL CO., LTD., MITSUBISHI HEAVY INDUSTRIES, LTD., NUCLEAR DEVELOPMENT CORPORATION
    Inventors: Toshiya Kido, Kimio Nakayama, Yasunao Yamaguchi
  • Arc ion plating device and arc ion plating system
    Patent number: 5730847
    Abstract: The present invention relates to an arc ion plating device utilizing a vacuum arc discharge to be utilized for the surface process of works and to an arc ion plating system provided with the above-mentioned device, and the present invention offers the device and the system which are able to realize extremely high productivity by an efficient handling of works. The device according to the present invention comprises a rod-shaped evaporation source and works to be coated with a film being disposed so as to surround the rod-shaped evaporation source, The device is so constituted that the works can be moved relative to the rod-shaped evaporation source in the axial direction of the rod-shaped evaporation source.
    Type: Grant
    Filed: December 23, 1994
    Date of Patent: March 24, 1998
    Assignee: Kabushiki Kaisha Kobeseikosho
    Inventors: Koji Hanaguri, Kunihiko Tsuji, Homare Nomura, Hiroshi Tamagaki, Hiroshi Kawaguchi, Katsuhiko Shimojima, Hirofumi Fujii, Toshiya Kido, Takeshi Suzuki, Yoichi Inoue
  • Alloys based on zirconium having proportional amount of tin, iron, chromium and oxygen
    Patent number: 4992240
    Abstract: A zirconium alloy containing on weight basis, 0.4-1.2% tin, 0.2-0.4% iron, 0.1-0.6% chromium, not higher than 0.5% of niobium and balance oxygen and zirconium, wherein the sum of weight proportions of tin, iron and chromium is in the range from 0.9 to 1.5%; and a zirconium alloy as above wherein the proportions, expressed by weight %, of tin X.sub.Sn, iron X.sub.Fe, chromium X.sub.Cr, niobium X.sub.Nb and oxygen X.sub.o satisfy the equation0.18 X.sub.Sn +0.15(X.sub.Fe +X.sub.Cr)+0.13X.sub.Nb +4.72X.sub.o .gtoreq.0.95.
    Type: Grant
    Filed: May 31, 1989
    Date of Patent: February 12, 1991
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Kazushi Komatsu, Toshiya Kido, Toshimichi Takahashi, Mitsuru Sugano, Shigemitsu Suzuki