Patents by Inventor Hideki Ishitobi

Hideki Ishitobi 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).

  • Publication number: 20220344739
    Abstract: An electric vehicle battery case 100 includes: a tray including a placement portion on which a battery is placed and having a groove formed in a bottom portion of the placement portion; a closing plate joined to the tray to close the groove and define a coolant flow path; and a top cover configured to seal the placement portion of the tray.
    Type: Application
    Filed: September 3, 2020
    Publication date: October 27, 2022
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventor: Hideki ISHITOBI
  • Publication number: 20220344752
    Abstract: A method for manufacturing an electric vehicle battery case includes: preparing a frame configured to define a through space inside and a flat plate made of resin; superposing and disposing the flat plate on the frame; and applying pressure to the flat plate from an opposite side from the frame to press the flat plate against the frame to cause the flat plate to swell in the through space, thereby deforming the flat plate into a tray having a bathtub shape including a bottom wall and a peripheral wall provided at a peripheral edge of the bottom wall and configured to define an opening portion, and joining by press-fitting the tray to the frame.
    Type: Application
    Filed: September 4, 2020
    Publication date: October 27, 2022
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventor: Hideki ISHITOBI
  • Publication number: 20220285772
    Abstract: A method for manufacturing a battery case for electric vehicle includes: preparing a frame, and a blank material formed in a flat plate shape; disposing the frame and the blank material to stack the blank material on the frame; and pressurizing the blank material to press the blank material against the frame, so as to mold the blank material into a bathtub shape and joining the blank material to the frame by press-fitting.
    Type: Application
    Filed: June 23, 2020
    Publication date: September 8, 2022
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventor: Hideki ISHITOBI
  • Publication number: 20200316663
    Abstract: In production of aluminum alloy members by a plastic working of a heat-treatable aluminum alloy extrusion, cracking during the plastic working is eliminated or minimized at low cost as compared with techniques including solution treatment or restoration treatment. An aluminum alloy production system includes an extruding press, a cutting device disposed downstream from the extruding press, and a conveyer and a plastic working machine each disposed in parallel with the extruding press. The extruding press hot-extrudes a heat-treatable aluminum alloy to give an extrusion. The cutting device cuts the extrusion to a predetermined length and isolates the extrusion from the extruding press. The conveyer conveys the extrusion to the plastic working machine, where the extrusion has been cut by the cutting device to a predetermined length. The plastic working machine imparts a plastic working to the extrusion conveyed by the conveyer to form the extrusion into an aluminum alloy part.
    Type: Application
    Filed: March 19, 2020
    Publication date: October 8, 2020
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Hiroaki HOSOI, Hideki Ishitobi
  • Patent number: 10229665
    Abstract: A porous sound absorbing structure according to the present invention includes an outer material 2 having a smooth curved shape, an inner material 3 having an uneven shape with a perimeter thereof combined with a perimeter of the outer material 2 to form a hollow portion S between the outer material 2 and the inner material, and a reinforcing plate material 4 having a large number of through holes 5, the reinforcing plate material being attached to a surface of the inner material 3 on the side of the hollow portion S in such a manner that an air layer is formed between the reinforcing plate material and the surface. A sound absorbing property is given to an interior of the hollow portion S by the reinforcing plate material 4.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: March 12, 2019
    Assignee: Kobe Steel, Ltd.
    Inventors: Ichiro Yamagiwa, Zenzo Yamaguchi, Akio Sugimoto, Yoshikazu Mukai, Hideki Ishitobi
  • Patent number: 10144457
    Abstract: Provided is a vehicle hood that allows a reduction in thickness of an outer panel while providing stiffness of the outer panel. A vehicle hood includes an outer panel, an inner panel, and a plurality of adhesive components. The inner panel has a plurality of beads. Each bead has a support part that supports each adhesive component. The adhesive components are provided on the support parts so as to be intermittently aligned along a specific direction. A support-part interval between the support parts adjacent to each other in an intersecting direction is smaller than an adhesive-component interval between the adhesive components adjacent to each other on the support parts.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: December 4, 2018
    Assignee: Kobe Steel, Ltd.
    Inventors: Masatoshi Yoshida, Hiroko Kashima, Hideki Ishitobi
  • Publication number: 20170282978
    Abstract: Provided is a vehicle hood that allows a reduction in thickness of an outer panel while providing stiffness of the outer panel. A vehicle hood includes an outer panel, an inner panel, and a plurality of adhesive components. The inner panel has a plurality of beads. Each bead has a support part that supports each adhesive component. The adhesive components are provided on the support parts so as to be intermittently aligned along a specific direction. A support-part interval between the support parts adjacent to each other in an intersecting direction is smaller than an adhesive-component interval between the adhesive components adjacent to each other on the support parts.
    Type: Application
    Filed: March 6, 2017
    Publication date: October 5, 2017
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Masatoshi YOSHIDA, Hiroko KASHIMA, Hideki ISHITOBI
  • Publication number: 20160351180
    Abstract: A porous sound absorbing structure according to the present invention includes an outer material 2 having a smooth curved shape, an inner material 3 having an uneven shape with a perimeter thereof combined with a perimeter of the outer material 2 to form a hollow portion S between the outer material 2 and the inner material, and a reinforcing plate material 4 having a large number of through holes 5, the reinforcing plate material being attached to a surface of the inner material 3 on the side of the hollow portion S in such a manner that an air layer is formed between the reinforcing plate material and the surface. A sound absorbing property is given to an interior of the hollow portion S by the reinforcing plate material 4.
    Type: Application
    Filed: August 12, 2016
    Publication date: December 1, 2016
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Ichiro YAMAGIWA, Zenzo YAMAGUCHI, Akio SUGIMOTO, Yoshikazu MUKAI, Hideki ISHITOBI
  • Patent number: 9453336
    Abstract: A porous sound absorbing structure according to the present invention includes an outer material 2 having a smooth curved shape, an inner material 3 having an uneven shape with a perimeter thereof combined with a perimeter of the outer material 2 to form a hollow portion S between the outer material 2 and the inner material, and a reinforcing plate material 4 having a large number of through holes 5, the reinforcing plate material being attached to a surface of the inner material 3 on the side of the hollow portion S in such a manner that an air layer is formed between the reinforcing plate material and the surface. A sound absorbing property is given to an interior of the hollow portion S by the reinforcing plate material 4.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: September 27, 2016
    Assignee: Kobe Steel, Ltd.
    Inventors: Ichiro Yamagiwa, Zenzo Yamaguchi, Akio Sugimoto, Yoshikazu Mukai, Hideki Ishitobi
  • Patent number: 9415812
    Abstract: An inner panel of a vehicle hood has a 0.2% proof stress of 70 MPa or more and 120 MPa or less after assembling of the inner panel and completion of bake coating. An outer panel has a 0.2% proof stress of 150 MPa or more. The outer panel is made of JIS 5000 or 6000 series aluminum alloy plate material, and the inner panel is made of a JIS 3000 series aluminum alloy plate material. The inner panel has hat-shaped main beads arranged in a center portion. An elongation amount (L?L0)/L0 determined by cross-section line length L of a concave or convex portion of the main bead projected from the surface of the center portion and a line length L0 of a line segment linearly connecting ends of the portion is 0.4 ? to 0.6 ? to a breaking elongation ? in uniaxial tensile deformation.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: August 16, 2016
    Assignee: Kobe Steel, Ltd.
    Inventors: Masatoshi Yoshida, Hideki Ishitobi, Koji Oishi, Tsuyoshi Yamazaki, Masao Kobori
  • Patent number: 9387887
    Abstract: A vehicle hood panel is formed by bonding an outer panel and an inner panel to each other. Disposed along the outer peripheral edge of the inner panel is an outer peripheral portion to which a cushion member and hinges for attaching the hood panel to a vehicle are to be later fastened. Adhesive bonding surfaces which are to be bonded to the outer panel by mastic are disposed on the region surrounded by the outer peripheral portion, and a plurality of reinforcement beads are formed between the adhesive bonding surfaces. At least some of the adhesive bonding surfaces and/or reinforcement beads are bended so as to extend toward the hinges or the cushion member as seen in a plan view.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: July 12, 2016
    Assignee: Kobe Steel, Ltd.
    Inventors: Hideki Ishitobi, Masatoshi Yoshida
  • Patent number: 9365085
    Abstract: A bumper reinforcement includes a tubular body including a front wall that serves as an impact surface and a rear wall on a vehicle body side, the tubular body extending in a vehicle width direction and having a hollow cross section; and a tow hook attachment structure for allowing a tow hook to be removably attached thereto. The tow hook attachment structure includes a pair of cylindrical protrusions respectively integrally formed with the front and rear walls of the tubular body by shaping parts of the walls, the cylindrical protrusions being disposed at predetermined positions on the front and rear walls in the vehicle width direction so as to face each other and so as to protrude inward into the hollow cross section, and at least one of the pair of protrusions includes a threaded portion for allowing a threaded portion of the tow hook to be screwed thereinto.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: June 14, 2016
    Assignee: Kobe Steel, Ltd.
    Inventors: Hideki Ishitobi, Narikazu Hashimoto, Tsunetake Tsuyoshi
  • Patent number: 9352710
    Abstract: An anti-collision component consisting of a metal hollow profile for automobiles includes a collision side flange, a body side flange, and a web connected to the flanges. The hollow profile has a longitudinal end at which a cross-sectional configuration is deformed by swaging to reduce a dimension between the flanges. The following relations are established: tW>TW RCI?(tW?TW) where tW is a wall thickness of the web at the end, TW is a wall thickness of the web at a portion where the cross-sectional configuration is not deformed, and RCI is an inside corner radius of a corner formed of the web and each flange at the portion.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: May 31, 2016
    Assignees: Kobe Steel, Ltd., DAIDO KOGYO CO., LTD.
    Inventors: Hideki Ishitobi, Narikazu Hashimoto, Tsunetake Tsuyoshi, Shingo Shimoaka, Tomomichi Ohtani, Kenji Nakaya, Kei Chino
  • Patent number: 9327664
    Abstract: An end of a stay material made of a tubular aluminum alloy extruded material is expanded by electromagnetic molding to form a flange for producing a bumper stay. The flange width is increased without cracking and a decrease in the thickness. A stay material having a circumferential wall undulating in a waveform pattern is used. A circumferential length L (one round length along waveform pattern) of the outer periphery wall along the circumferential direction of the stay material is longer than a circumferential length L0 of a simple cylindrical circumferential wall having the same outer diameter (circumscribed circle) (L>L0). L?L0 is an excessive line length. Since the circumferential wall has the excessive line length, when the end of the circumferential wall is expanded to form the flange, the flange having a large diameter can be formed.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: May 3, 2016
    Assignee: Kobe Steel, Ltd.
    Inventors: Hideki Ishitobi, Hiroaki Hosoi, Keisuke Akasaki
  • Publication number: 20160114747
    Abstract: An anti-collision component consisting of a metal hollow profile for automobiles includes a collision side flange, a body side flange, and a web connected to the flanges. The hollow profile has a longitudinal end at which a cross-sectional configuration is deformed by swaging to reduce a dimension between the flanges. The following relations are established: tW>TW RCI?(tW-TW) where tW is a wall thickness of the web at the end, TW is a wall thickness of the web at a portion where the cross-sectional configuration is not deformed, and RCI is an inside corner radius of a corner formed of the web and each flange at the portion.
    Type: Application
    Filed: October 20, 2015
    Publication date: April 28, 2016
    Applicants: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.), DAIDO KOGYO CO., LTD.
    Inventors: Hideki Ishitobi, Narikazu Hashimoto, Tsunetake Tsuyoshi, Shingo Shimoaka, Tomomichi Ohtani, Kenji Nakaya, Kei Chino
  • Publication number: 20150291123
    Abstract: An inner panel of a vehicle hood has a 0.2% proof stress of 70 MPa or more and 120 MPa or less after assembling of the inner panel and completion of bake coating. An outer panel has a 0.2% proof stress of 150 MPa or more. The outer panel is made of JIS 5000 or 6000 series aluminum alloy plate material, and the inner panel is made of a JIS 3000 series aluminum alloy plate material. The inner panel has hat-shaped main beads arranged in a center portion. An elongation amount (L?L0)/L0 determined by cross-section line length L of a concave or convex portion of the main bead projected from the surface of the center portion and a line length L0 of a line segment linearly connecting ends of the portion is 0.4 ? to 0.6 ? to a breaking elongation ? in uniaxial tensile deformation.
    Type: Application
    Filed: April 3, 2015
    Publication date: October 15, 2015
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.)
    Inventors: Masatoshi YOSHIDA, Hideki ISHITOBI, Koji OISHI, Tsuyoshi YAMAZAKI, Masao KOBORI
  • Publication number: 20150211226
    Abstract: A porous sound absorbing structure according to the present invention includes an outer material 2 having a smooth curved shape, an inner material 3 having an uneven shape with a perimeter thereof combined with a perimeter of the outer material 2 to form a hollow portion S between the outer material 2 and the inner material, and a reinforcing plate material 4 having a large number of through holes 5, the reinforcing plate material being attached to a surface of the inner material 3 on the side of the hollow portion S in such a manner that an air layer is formed between the reinforcing plate material and the surface. A sound absorbing property is given to an interior of the hollow portion S by the reinforcing plate material 4.
    Type: Application
    Filed: August 28, 2013
    Publication date: July 30, 2015
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Ichiro Yawagiwa, Zenzo Yamaguchi, Akio Sugimoto, Yoshikazu Mukai, Hideki Ishitobi
  • Publication number: 20150048635
    Abstract: A bumper reinforcement includes a tubular body including a front wall that serves as an impact surface and a rear wall on a vehicle body side, the tubular body extending in a vehicle width direction and having a hollow cross section; and a tow hook attachment structure for allowing a tow hook to be removably attached thereto. The tow hook attachment structure includes a pair of cylindrical protrusions respectively integrally formed with the front and rear walls of the tubular body by shaping parts of the walls, the cylindrical protrusions being disposed at predetermined positions on the front and rear walls in the vehicle width direction so as to face each other and so as to protrude inward into the hollow cross section, and at least one of the pair of protrusions includes a threaded portion for allowing a threaded portion of the tow hook to be screwed thereinto.
    Type: Application
    Filed: July 15, 2014
    Publication date: February 19, 2015
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Hideki ISHITOBI, Narikazu Hashimoto, Tsunetake Tsuyoshi
  • Publication number: 20140353990
    Abstract: An end of a stay material made of a tubular aluminum alloy extruded material is expanded by electromagnetic molding to form a flange for producing a bumper stay. The flange width is increased without cracking and a decrease in the thickness. A stay material having a circumferential wall undulating in a waveform pattern is used. A circumferential length L (one round length along waveform pattern) of the outer periphery wall along the circumferential direction of the stay material is longer than a circumferential length L0 of a simple cylindrical circumferential wall having the same outer diameter (circumscribed circle) (L>L0). L?L0 is an excessive line length. Since the circumferential wall has the excessive line length, when the end of the circumferential wall is expanded to form the flange, the flange having a large diameter can be formed.
    Type: Application
    Filed: January 24, 2013
    Publication date: December 4, 2014
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.)
    Inventors: Hideki Ishitobi, Hiroaki Hosoi, Keisuke Akasaki
  • Publication number: 20140015285
    Abstract: A vehicle hood panel is formed by bonding an outer panel and an inner panel to each other. Disposed along the outer peripheral edge of the inner panel is an outer peripheral portion to which a cushion member and hinges for attaching the hood panel to a vehicle are to be later fastened. Adhesive bonding surfaces which are to be bonded to the outer panel by mastic are disposed on the region surrounded by the outer peripheral portion, and a plurality of reinforcement beads are formed between the adhesive bonding surfaces. At least some of the adhesive bonding surfaces and/or reinforcement beads are bended so as to extend toward the hinges or the cushion member as seen in a plan view.
    Type: Application
    Filed: April 2, 2012
    Publication date: January 16, 2014
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.)
    Inventors: Hideki Ishitobi, Masatoshi Yoshida