Patents by Inventor Yoshimichi Kawai

Yoshimichi Kawai 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: 7603815
    Abstract: A panel structure of a steel house built by constructing multi-story structural frameworks by forming wall panels by fastening face members to rectangular frames of light-gage channels of sheet steels, constructing walls of each story by disposing said wall panels along the four sides of a rectangle, and assembling said wall panels and a floor panel consisting of a wall plate mounted on floor joists, the panel structure characterized in that side ends of said floor panel are connected to the inner upper end of the wall panels of the lower story, and the end edges of the wall panels of the upper and lower stories on at least two opposite sides of said four sides are butt-joined.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: October 20, 2009
    Assignee: Nippon Steel Corporation
    Inventors: Yoshimichi Kawai, Kazunori Fujihashi, Shigeaki Tohnai, Hiroshi Tanaka
  • Publication number: 20090090082
    Abstract: The present invention provides a joining structure of a roof truss using thin light-gauge shaped steel. In a joining structure for joining a subsidiary roof with a main roof, a valley bracket formed by bending a thin steel sheet is inserted and disposed in the longitudinal valley direction of a joining member for joining a rafter forming the subsidiary roof with a truss or a rafter forming the main roof. In a joining structure in which a roof truss upper chord member or a rafter intersects a wall on the upper surface of the wall, a bracket formed by bending a thin steel sheet is disposed at the intersection of these members and fixes the roof truss upper chord member or the rafter to the wall.
    Type: Application
    Filed: December 4, 2008
    Publication date: April 9, 2009
    Applicant: Nippon Steel Corporation
    Inventors: Yoshimichi Kawai, Jun Shimizu
  • Patent number: 7475517
    Abstract: The present invention provides a joining structure of a roof truss using thin light-gauge shaped steel. In a joining structure for joining a subsidiary roof with a main roof, a valley bracket formed by bending a thin steel sheet is inserted and disposed in the longitudinal valley direction of a joining member for joining a rafter forming the subsidiary roof with a truss or a rafter forming the main roof. In a joining structure in which a roof truss upper chord member or a rafter intersects a wall on the upper surface of the wall, a bracket formed by bending a thin steel sheet is disposed at the intersection of these members and fixes the roof truss upper chord member or the rafter to the wall.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: January 13, 2009
    Assignee: Nippon Steel Corporation
    Inventors: Yoshimichi Kawai, Jun Shimizu
  • Publication number: 20080047225
    Abstract: The present invention provides construction configurations and a construction method for steel houses that eliminate the shortcoming of the conventional platform construction method for steel houses that complicates the structure because of the need to use metal reinforcements without losing the advantage of the conventional method that facilitates the construction work by using wall panels. After constructing the ground story wall (lower story wall) 22 by attaching wall panels 21 for the ground story to through vertical frame studs 20 extending to upper floors, the second story wall (upper story wall) 23 is constructed by attaching wall panels 21 for the upper story to the through vertical frame studs 20. Of the wall panels 21 disposed along the four sides of the lower story, the top ends 29 of the two opposite wall panels 21b are positioned lower than the top ends 29a of the lower story wall panels 21a on the other two opposite sides.
    Type: Application
    Filed: July 21, 2005
    Publication date: February 28, 2008
    Inventors: Yoshimichi Kawai, Kazunori Fujihashi, Shigeaki Tohnai
  • Publication number: 20070125034
    Abstract: The present invention provides a joint fitting between members of a simple structure with few parts and able to transmit stress of both compressive force and tensile force and a joint structure and method of joining using that joint fitting, that is, a joint fitting 1 between members connecting an upper floor vertical frame members 11 and lower floor vertical frame members 11 and transmitting compressive force and tensile force, the joint fitting 1 between members provided with a metal connection member body having a length enabling it to be arranged bridging the upper floor vertical frame member 11 and lower floor vertical frame member 11 in a vertical orientation and joint parts 3 for directly joining with these vertical frame members at its two ends, the joint parts 3 of the joint fitting 1 arranged at the upper and lower floors being brought into contact with the vertical side surfaces of the different floor vertical frame members 11 and fastened by drill screws 24 screwed in bridging the joint parts 3 an
    Type: Application
    Filed: September 5, 2005
    Publication date: June 7, 2007
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Yoshimichi Kawai, Kazunori Fujihashi, Shigeaki Tohnai, Hiroshi Tanaka
  • Publication number: 20070119111
    Abstract: A panel structure of a steel house built by constructing multi-story structural frameworks by forming wall panels by fastening face members to rectangular frames of light-gage channels of sheet steels, constructing walls of each story by disposing said wall panels along the four sides of a rectangle, and assembling said wall panels and a floor panel consisting of a wall plate mounted on floor joists, the panel structure characterized in that side ends of said floor panel are connected to the inner upper end of the wall panels of the lower story, and the end edges of the wall panels of the upper and lower stories on at least two opposite sides of said four sides are butt-joined.
    Type: Application
    Filed: July 21, 2005
    Publication date: May 31, 2007
    Inventors: Yoshimichi Kawai, Kazunori Fujihashi, Shigeaki Tohnai, Hiroshi Tanaka
  • Publication number: 20070107352
    Abstract: This invention provides a reinforcing construction for a wall opening in a steel house capable of suppressing shearing stress to a low level while keeping, especially, the initial rigidity at a high level. Each side face wall 73 is so arranged as to be clamped between a vertical wall panel 71 and a wainscot panel 72. An opening upper frame member 57 to which a lower end of the vertical panel 71 is fixed and an opening lower frame member 54 to which an upper end of the wainscot panel 72 is fixed are fixed through metal joint 81 to each transverse frame member constituting a side face wall frame member 64 to which the side face wall 73 is fixed.
    Type: Application
    Filed: July 21, 2005
    Publication date: May 17, 2007
    Inventors: Yoshimichi Kawai, Kazunori Fujihashi, Shigeaki Tohnai, Koji Hanya
  • Publication number: 20070110513
    Abstract: The present invention provides a joint fitting between members of a simple structure able to transmit stress of both compressive force and tensile force and a joint structure and method of joining, that is, a joint fitting 1 between members comprising a single bolt 4 having a length enabling it to be arranged vertically oriented bridging an upper floor vertical frame member and a lower floor vertical frame member at intervals along the axial direction of which bolt joint hardware 7 to be fastened to vertical frame members of the floors arranged at the upper floor side and lower floor side and having side opening groove cross-sections are arranged, the side opening grooves in the joint hardware 7 being able to detachably receive the bolt, and the joint hardware 7 being attached to be able to be fastened positioned along the longitudinal direction of the bolt 4, the joint hardware arranged at the upper and lower floors in the joint hardware being butted against vertical side surfaces of the vertical frame membe
    Type: Application
    Filed: September 5, 2005
    Publication date: May 17, 2007
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Kazunori Fujihashi, Yoshimichi Kawai, Shigeaki Tohnai, Hiroshi Tanaka
  • Patent number: 6990782
    Abstract: The present invention provides a method for assembling structural members of thin and lightweight shaped steel, the thin and lightweight shaped-steel members to be assembled having at least one joint hole or concave/convex portion at an appropriate position of a flange or web of the thin and lightweight shaped steel member, and temporarily joining portions of the thin and lightweight shaped steel members to each other for easy assembly.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: January 31, 2006
    Assignee: Nippon Steel Corporation
    Inventors: Jun Shimizu, Yoshimichi Kawai
  • Publication number: 20050120658
    Abstract: The present invention provides a joint structure for a building using thin and lightweight shaped-steel, and, in particular, provides a joint structure for fastening and fixing frame members made of thin and lightweight shaped-steel to steel sills and a bolt joint truss structure for forming a main structure of a roof, sufficiently durable against a large earthquake or a strong wind such as a typhoon. A joint structure of a building using thin and lightweight shaped-steel is provided wherein, in a joint portion for fastening a steel frame member for forming a wall to a steel floor sill, a steel reinforcing member having a cross-sectional area in a range from 70 to 100% of a cross-sectional area of the steel frame member is inserted into the joint portion and fixed thereto.
    Type: Application
    Filed: January 21, 2005
    Publication date: June 9, 2005
    Applicant: Nippon Steel Corporation
    Inventors: Yoshimichi Kawai, Jun Shimizu
  • Publication number: 20040154257
    Abstract: The present invention provides a joining structure of a roof truss using thin light-gauge shaped steel. In a joining structure for joining a subsidiary roof with a main roof, a valley bracket formed by bending a thin steel sheet is inserted and disposed in the longitudinal valley direction of a joining member for joining a rafter forming the subsidiary roof with a truss or a rafter forming the main roof. In a joining structure in which a roof truss upper chord member or a rafter intersects a wall on the upper surface of the wall, a bracket formed by bending a thin steel sheet is disposed at the intersection of these members and fixes the roof truss upper chord member or the rafter to the wall.
    Type: Application
    Filed: December 10, 2003
    Publication date: August 12, 2004
    Inventors: Yoshimichi Kawai, Jun Shimizu
  • Publication number: 20030213194
    Abstract: The present invention provides a joint structure for a building using thin and lightweight shaped-steel, and, in particular, provides a joint structure for fastening and fixing frame members made of thin and lightweight shaped-steel to steel sills and a bolt joint truss structure for forming a main structure of a roof, sufficiently durable against a large earthquake or a strong wind such as a typhoon.
    Type: Application
    Filed: May 20, 2002
    Publication date: November 20, 2003
    Inventors: Yoshimichi Kawai, Jun Shimizu
  • Publication number: 20020194811
    Abstract: The present invention provides a method for assembling structural members of thin and lightweight shaped steel, the thin and lightweight shaped-steel members to be assembled having at least one joint hole or concave/convex portion at an appropriate position of a flange or web of the thin and lightweight shaped steel member, and temporarily joining portions of the thin and lightweight shaped steel members to each other for easy assembly.
    Type: Application
    Filed: May 20, 2002
    Publication date: December 26, 2002
    Inventors: Jun Shimizu, Yoshimichi Kawai