Patents by Inventor Toyoki Kuroiwa

Toyoki Kuroiwa 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).

  • Patent number: 10006202
    Abstract: The buckling-restrained brace that is capable of being fixed to connected portions of a structure using bolts, the brace includes: a plate member extending in an axial direction, and in which bolt holes for fixing the bolts are formed at end portions of the plate member in the axial direction; and a buckling-restrained member configured to restrain a center portion of the plate member in the axial direction to prevent the plate member from buckling, wherein the buckling-restrained member includes a pipe member surrounding the plate member from the outside in a radial direction, and a filler filling the gap between the pipe member and the plate member, and the plate member includes a fixing plate, a portion of which is embedded in the filler, and the remaining portion is protruded from the filler in the axial direction, and in which the bolt hole is formed at an end portion of the remaining portion in the axial direction.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: June 26, 2018
    Assignee: NIPPON STEEL & SUMIKIN ENGINEERING CO., LTD.
    Inventors: Isao Kimura, Norihisa Kawamura, Toyoki Kuroiwa
  • Publication number: 20170234012
    Abstract: The buckling-restrained brace that is capable of being fixed to connected portions of a structure using bolts, the brace includes: a plate member extending in an axial direction, and in which bolt holes for fixing the bolts are formed at end portions of the plate member in the axial direction; and a buckling-restrained member configured to restrain a center portion of the plate member in the axial direction to prevent the plate member from buckling, wherein the buckling-restrained member includes a pipe member surrounding the plate member from the outside in a radial direction, and a filler filling the gap between the pipe member and the plate member, and the plate member includes a fixing plate, a portion of which is embedded in the filler, and the remaining portion is protruded from the filler in the axial direction, and in which the bolt hole is formed at an end portion of the remaining portion in the axial direction.
    Type: Application
    Filed: August 31, 2015
    Publication date: August 17, 2017
    Applicant: NIPPON STEEL & SUMIKIN ENGINEERING CO., LTD.
    Inventors: Isao KIMURA, Norihisa KAWAMURA, Toyoki KUROIWA
  • Patent number: 9631391
    Abstract: Provided are a buckling restrained brace including a core material that has a plate shape and extends along an axis, a restraining member that extends along the axis and covers the core material from an outer peripheral side in a state where both end portions of the core material in an axis direction protrude outside, a filler that is filled between the restraining member and the core material, and a pair of first reinforcing members that each have a plate shape and are installed in both end portions of the core material in the axis direction so as to interpose the core material therebetween from both sides of the core material in a plate width direction, and a load-bearing structure installed with the buckling restrained brace.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: April 25, 2017
    Assignee: NIPPON STEEL & SUMIKIN ENGINEERING CO., LTD
    Inventors: Yasushi Ichikawa, Kouhei Higuchi, Kohji Nishimoto, Nobuhiro Mochizuki, Masatoshi Wada, Toyoki Kuroiwa, Shunji Endo
  • Publication number: 20150218838
    Abstract: Provided are a buckling restrained brace including a core material that has a plate shape and extends along an axis, a restraining member that extends along the axis and covers the core material from an outer peripheral side in a state where both end portions of the core material in an axis direction protrude outside, a filler that is filled between the restraining member and the core material, and a pair of first reinforcing members that each have a plate shape and are installed in both end portions of the core material in the axis direction so as to interpose the core material therebetween from both sides of the core material in a plate width direction, and a load-bearing structure installed with the buckling restrained brace.
    Type: Application
    Filed: April 8, 2013
    Publication date: August 6, 2015
    Applicant: NIPPON STEEL & SUMIKIN ENGINEERING CO., LTD.
    Inventors: Yasushi Ichikawa, Kouhei Higuchi, Kohji Nishimoto, Nobuhiro Mochizuki, Masatoshi Wada, Toyoki Kuroiwa, Shunji Endo