Patents by Inventor Suguru Ooki

Suguru Ooki 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).

  • Austenitic stainless steel, manufacturing method for the same, and structure using the same
    Patent number: 8172959
    Abstract: There are provided an austenitic stainless steel having high stress corrosion crack resistance, characterized by containing, in percent by weight, 0.030% or less C, 0.1% or less Si, 2.0% or less Mn, 0.03% or less P, 0.002% or less S, 11 to 26% Ni, 17 to 30% Cr, 3% or less Mo, and 0.01% or less N, the balance substantially being Fe and unavoidable impurities; a manufacturing method for an austenitic stainless steel, characterized in that a billet consisting of the said austenitic stainless steel is subjected to solution heat treatment at a temperature of 1000 to 1150° C.; and a pipe and a in-furnace structure for a nuclear reactor to which the said austenitic stainless steel is applied.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: May 8, 2012
    Assignees: Mitsubishi Heavy Industries, Ltd., The Tokyo Electric Power Company, Inc.
    Inventors: Yasuhiro Sakaguchi, Toshihiko Iwamura, Hiroshi Kanasaki, Hidehito Mimaki, Masaki Taneike, Shunichi Suzuki, Kenrou Takamori, Suguru Ooki, Naoki Anahara, Naoki Hiranuma, Toshio Yonezawa
  • Austenitic Stainless Steel, Manufacturing Method for the Same, and Structure Using the Same
    Publication number: 20080308198
    Abstract: There are provided an austenitic stainless steel having high stress corrosion crack resistance, characterized by containing, in percent by weight, 0.030% or less C, 0.1% or less Si, 2.0% or less Mn, 0.03% or less P, 0.002% or less S, 11 to 26% Ni, 17 to 30% Cr, 3% or less Mo, and 0.01% or less N, the balance substantially being Fe and unavoidable impurities; a manufacturing method for an austenitic stainless steel, characterized in that a billet consisting of the said austenitic stainless steel is subjected to solution heat treatment at a temperature of 1000 to 1150° C.; and a pipe and a in-furnace structure for a nuclear reactor to which the said austenitic stainless steel is applied.
    Type: Application
    Filed: January 13, 2005
    Publication date: December 18, 2008
    Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., THE TOKYO ELECTRIC POWER COMPANY, INC.
    Inventors: Yasuhiro Sakaguchi, Toshihiko Iwamura, Hiroshi Kanasaki, Hidehito Mimaki, Masaki Taneike, Shunichi Suzuki, Kenrou Takamori, Suguru Ooki, Naoki Anahara, Naoki Hiranuma, Toshio Yonezawa