Patents by Inventor Toru Hashimura

Toru Hashimura 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: 7658421
    Abstract: A target tubular member with flange, such as a bumper stay, has a flange having an outer diameter larger than the diameter of an axial section and is formed by electromagnetic forming without excessive expansion. The tubular member with flange includes an axial member made of a tubular aluminum alloy extrudate and a flange member joined to an end of the axial member. The axial member has an end flange being integrated at its end and having an area smaller than that of the flange member. The flange member has a hole, and a cylindrical hole flange at the edge of the hole. The axial member fits in the hole of the flange member, the end flange is in intimate contact with the flange member, and the outer periphery of a small-diameter portion of the axial member is in intimate contact with the inner periphery of the hole flange. The hole flange is held between the end flange and a protrusion.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: February 9, 2010
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Narikazu Hashimoto, Masatoshi Yoshida, Hiroyuki Yamashita, Satoshi Nimura, Toru Hashimura, Yoshihaya Imamura, Kazumori Horiguchi
  • Publication number: 20090267368
    Abstract: The bumper system for a vehicle body includes a vehicle body bumper beam of a hollow construction with an impact buffer member arranged in the front side. The impact buffer member is provided with a collision wall part, side wall parts and joint flanges and is integrally formed by a metallic material, the collision wall part and the side wall parts forming a sectional shape of approximately U-shape which embraces the bumper beam. The joint flanges are joined with the flanges protruding from the rear wall of the bumper beam and support the impact buffer member from the rear wall side of the bumper beam.
    Type: Application
    Filed: April 28, 2008
    Publication date: October 29, 2009
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd.)
    Inventor: Toru HASHIMURA
  • Publication number: 20090243314
    Abstract: The bumper stay includes a cylindrical shaft member fit in to a hole of a bumper reinforce, a cylindrical reinforcing member fit in to the outer periphery of the shaft member in the rear side of the bumper reinforce, and a mounting flange member fit in to the outer periphery of the shaft member in its rear end. The shaft member is enlarged by electromagnetic forming and is tightly adhered to the inner peripheral surface of the hole formed in the bumper reinforce, the inner peripheral surface of the reinforcing member, and the inner peripheral surface of the hole flange formed in the mounting flange member, thereby these are joined with each other. Thin aluminum alloy extruded material can be used for the shaft member.
    Type: Application
    Filed: March 11, 2009
    Publication date: October 1, 2009
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd)
    Inventors: Narikazu Hashimoto, Tsunetake Tsuyoshi, Hideki Ishitobi, Satoshi Nimura, Toru Hashimura
  • Publication number: 20090243337
    Abstract: There is provided a frame having closed cross-sections capable of preventing a welded joint of the frame from being turned in a wide open state, or being broken when an external force is applied to the frame at the time of vehicle collision, and so forth, and the frame is collapsed. The frame having closed cross-sections is provided with a body cylindrical in shape, wherein first side parts of a first frame member, in pairs, are welded to second side parts of a second frame member, in pairs, respectively, thereby forming a welded joint on both sides of the body, and respective end faces of each of the reinforcing plates, in the widthwise direction of the body, are butted against respective inner side faces of the side parts of the body, corresponding thereto.
    Type: Application
    Filed: March 29, 2007
    Publication date: October 1, 2009
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Mitsuhiro Ema, Yoshihaya Imamura, Toru Hashimura
  • Publication number: 20060284432
    Abstract: A target tubular member with flange, such as a bumper stay, has a flange having an outer diameter larger than the diameter of an axial section and is formed by electromagnetic forming without excessive expansion. The tubular member with flange includes an axial member made of a tubular aluminum alloy extrudate and a flange member joined to an end of the axial member. The axial member has an end flange being integrated at its end and having an area smaller than that of the flange member. The flange member has a hole, and a cylindrical hole flange at the edge of the hole. The axial member fits in the hole of the flange member, the end flange is in intimate contact with the flange member, and the outer periphery of a small-diameter portion of the axial member is in intimate contact with the inner periphery of the hole flange. The hole flange is held between the end flange and a protrusion.
    Type: Application
    Filed: April 27, 2005
    Publication date: December 21, 2006
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Narikazu Hashimoto, Masatoshi Yoshida, Hiroyuki Yamashita, Satoshi Nimura, Toru Hashimura, Yoshihaya Imamura, Kazumori Horiguchi
  • Patent number: 6481690
    Abstract: A lightweight car body energy absorber made of Al alloy which provides a high energy absorption performance. The car body energy absorber comprises a hollow shape with a rectangular sectional profile and a reinforcing shape attached to the front face of the collision plane of the hollow shape, where the hollow shape and the reinforcing shape are aluminum alloy extruded shapes. The reinforcing shape has a hat-shaped open sectional profile, which is composed of a collision wall almost parallel to the collision plane of the hollow shape, plural mutually parallel horizontal ribs which support the collision wall, and vertical flanges provided at the tips of these ribs. The reinforcing shape is joined to the collision plane of the hollow shape through the vertical flanges.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: November 19, 2002
    Assignee: Kobe Steel, Ltd.
    Inventors: Koji Kariatsumari, Satoshi Nimura, Toru Hashimura
  • Publication number: 20010024051
    Abstract: A lightweight car body energy absorber made of Al alloy which provides a high energy absorption performance. The car body energy absorber comprises a hollow shape 1 with a rectangular sectional profile and a reinforcing shape 2 attached to the front face of the collision plane of the hollow shape, where the hollow shape 1 and the reinforcing shape 2 are aluminum alloy extruded shapes. The reinforcing shape 2 has a hat-shaped open sectional profile, which is composed of a collision wall 6 almost parallel to the collision plane of the hollow shape 1, plural mutually parallel horizontal ribs 7a, 7b and 7c which support the collision wall 6, and vertical flanges 8a, 8b and 8c provided at the tips of these ribs. It is joined to the collision plane of the hollow shape 1 through the vertical flanges 8a, 8b and 8c.
    Type: Application
    Filed: February 15, 2001
    Publication date: September 27, 2001
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Koji Kariatsumari, Satoshi Nimura, Toru Hashimura
  • Patent number: 6076725
    Abstract: Sections 1 and 2 each in the form of a welded pipe (square pipe) are provided. The sections 1 and 2 are brought into abutment with each other so that the respective end faces 3a and 3b abut each other at a predetermined angle .beta. between each section and its axial direction. The sections 1 and 2 are arranged symmetrically with respect to each other. Acute end portions of the abutted portion are chamfered to from a plane part. Corners of the sections 1 and 2 are rounded. In such a combined state of both sections, the abutted portion is welded in the circumferential direction to form a weld bead. As a result, penetration of weld metal to the section 1 and that to the section 2 become equal to each other. Thus, it becomes possible to fabricate a welded structure having a uniform weld bead and having improved strength and reliability of welded portions.
    Type: Grant
    Filed: June 3, 1997
    Date of Patent: June 20, 2000
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Yoshihaya Imamura, Kazuo Yonezawa, Toru Hashimura, Takahito Fujii, Tomohiro Kurokawa