Patents by Inventor Nobushiro Seo

Nobushiro Seo 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: 20190358740
    Abstract: A jacket main body is formed of a first aluminum alloy. A seal body is formed of a second aluminum alloy. The first aluminum alloy is higher in hardness than the second aluminum alloy in material type. A method includes: a preparing step of forming on an peripheral wall part a step part having a step bottom surface and a step side surface obliquely rising; a mounting step of mounting the seal body on the jacket main body to form a first butt portion and putting the step bottom surface and a back surface of the seal body on each other to form a second butt portion; a main joining step of performing friction stir welding while only the stirring pin of the rotary tool rotating contacts with only the seal body.
    Type: Application
    Filed: June 13, 2017
    Publication date: November 28, 2019
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi HORI, Nobushiro SEO
  • Publication number: 20190344392
    Abstract: Certain embodiments relate to a heat exchanger plate capable of performing friction stir welding at a deep position of the heat exchanger plate, and improving air-tightness and water-tightness. A method may include a lid groove closing process to insert a lid plate into a lid groove formed at a periphery of a concave groove opening to a surface of a base member. The method may also include a primary joining process to perform friction stirring while relatively moving a primary joining rotary tool equipped with a stirring pin along a butting portion of a side wall of the lid groove and a side surface of the lid plate. In the primary joining process, the rotating stirring pin may be inserted into the butting portion, and the friction stirring may be performed in a state of only the stirring pin being in contact with the base member and the lid plate.
    Type: Application
    Filed: July 22, 2019
    Publication date: November 14, 2019
    Inventors: Hisashi HORI, Nobushiro SEO
  • Patent number: 10471557
    Abstract: A method of manufacturing a liquid-cooled jacket, includes: a placing step for placing a sealing body on a jacket body; a first primary joining step for performing frictional stirring by moving a primary joining rotary tool along a first abutment portion where a step side surface of a peripheral wall stepped portion and an outer peripheral side surface of the sealing body abut on each other; and a second primary joining step for performing frictional stirring by moving the primary joining rotary tool along second abutment portions in each of which a step side surface of a columnar support stepped portion and a hole wall of a hole abut on each other.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: November 12, 2019
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi Hori, Nobushiro Seo
  • Patent number: 10335894
    Abstract: A joining method includes a butting process configured to butt a first metal member and a second metal member each having a front surface with various heights to form therebetween a butt portion with various heights; and a welding process configured to apply a friction stirring to the butt portion by a stirring pin of a rotation tool while only the stirring pin of the rotation tool contacts with the first metal member and the second metal member of the butt portion. The welding process may be configured to insert the stirring pin of the rotation tool into the butt portion from front surfaces of the first metal member and the second metal member and apply the friction stirring to the butt portion while an insertion depth of only the stirring pin is kept approximately constant.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: July 2, 2019
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi Hori, Nobushiro Seo
  • Publication number: 20190039168
    Abstract: A joining method for joining a first metal member with a second metal member with use of a rotary tool having a stirring pin is provided. The joining method includes steps of: butting the first metal member with the second metal member to form a butted portion; arranging an auxiliary member to be in surface-contact with the first metal member or the second metal member; and frictional stirring the butted portion in which the rotating stirring pin is inserted from a front surface of the auxiliary member and the rotary tool is relatively moved in the butted portion to join the first metal member, the second metal member and the auxiliary member, in the state that only the stirring pin is brought in contact with the first metal member, the second metal member and the auxiliary member.
    Type: Application
    Filed: January 19, 2017
    Publication date: February 7, 2019
    Inventors: Hisashi HORI, Nobushiro SEO
  • Publication number: 20180272479
    Abstract: A method of manufacturing a liquid-cooled jacket, includes: a placing step for placing a sealing body on a jacket body; a first primary joining step for performing frictional stirring by moving a primary joining rotary tool along a first abutment portion where a step side surface of a peripheral wall stepped portion and an outer peripheral side surface of the sealing body abut on each other; and a second primary joining step for performing frictional stirring by moving the primary joining rotary tool along second abutment portions in each of which a step side surface of a columnar support stepped portion and a hole wall of a hole abut on each other.
    Type: Application
    Filed: October 9, 2015
    Publication date: September 27, 2018
    Inventors: Hisashi HORI, Nobushiro SEO
  • Publication number: 20180264584
    Abstract: A method of manufacturing a liquid-cooled jacket, includes a preparation step which includes placing a sealing body on a stepped portion to allow a step side surface and a sealing-body side surface of the sealing body to butt each other, and a primary joining step which includes allowing a primary joining rotary tool to move once around the sealing body, while moving the rotary tool along a butted portion formed in the preparation step, to carry out friction stir welding. The primary joining step includes employing the primary joining rotary tool provided with a stirring pin having a length dimension greater than a thickness dimension of the sealing body, and carrying out friction stirring with only the stirring pin being brought into contact with a jacket body and the sealing body.
    Type: Application
    Filed: May 17, 2018
    Publication date: September 20, 2018
    Inventors: Hisashi HORI, Nobushiro SEO
  • Publication number: 20180250767
    Abstract: A joining method includes abutting an end face of a first metal member in a plate shape having a projecting part on the end face on a rear face of a second metal member in a plate shape having a hole that is bored through the second metal member in a plate thickness direction and simultaneously inserting the projecting part into the hole. The method includes inserting a stirring pin of a rotary tool into an abutment portion of a wall of the hole and an outer peripheral surface of the projecting part from a front face side opposite to the rear face of the second metal member. The rotary tool is moved along the abutment portion to join the abutment portion by friction stirring. The abutment portion is joined together with only the stirring pin of the rotary tool being in contact with the first and second metal members.
    Type: Application
    Filed: August 23, 2016
    Publication date: September 6, 2018
    Inventors: Hisashi HORI, Nobushiro SEO
  • Publication number: 20180243858
    Abstract: A method for manufacturing a liquid-cooled jacket includes: preparing, as well as a jacket body having a bottom, a peripheral wall and a seal body having a first substrate formed of a first metal, a second substrate formed of a second metal so as to have a peripheral edge of the first substrate exposed, and a plurality of fins; arranging an overlaid portion formed with an end face of the peripheral wall overlaid with a rear face of the first substrate; and joining by friction stir the overlaid portion by moving a joining rotary tool along the overlaid portion relatively in a state where a stirring pin of the joining rotary tool is contacted with only the first substrate or with both the first substrate and the peripheral wall.
    Type: Application
    Filed: August 19, 2016
    Publication date: August 30, 2018
    Inventors: Hisashi HORI, Nobushiro SEO
  • Publication number: 20180207745
    Abstract: The present invention provides a joining method including: a butting step in which a rear face of a first metal member having a recessed groove on its front face is butted against an end face of a second metal member to form a butted portion; and a friction stir step in which a stirring pin of a rotary tool is inserted in the recessed groove so as to be relatively moved therealong for joining the butted portion by friction stir. The diameter of the shoulder portion is set to be smaller than a width of the recessed groove, and in the friction stir step, the butted portion is joined by friction stir in a state that the shoulder portion is spaced from a bottom face of the recessed groove while the shoulder portion holds burrs generated from the first metal member.
    Type: Application
    Filed: June 17, 2016
    Publication date: July 26, 2018
    Inventors: Hisashi HORI, Nobushiro SEO
  • Patent number: 9999941
    Abstract: A method of manufacturing a liquid-cooled jacket, includes a preparation step which includes placing a sealing body on a stepped portion to allow a step side surface and a sealing-body side surface of the sealing body to butt each other, and a primary joining step which includes allowing a primary joining rotary tool to move once around the sealing body, while moving the rotary tool along a butted portion formed in the preparation step, to carry out friction stir welding. The primary joining step includes employing the primary joining rotary tool provided with a stirring pin having a length dimension greater than a thickness dimension of the sealing body, and carrying out friction stirring with only the stirring pin being brought into contact with a jacket body and the sealing body.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: June 19, 2018
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi Hori, Nobushiro Seo
  • Publication number: 20180141152
    Abstract: A method of manufacturing a liquid-cooled jacket, includes a preparation step which includes placing a sealing body on a stepped portion to allow a step side surface and a sealing-body side surface of the sealing body to butt each other, and a primary joining step which includes allowing a primary joining rotary tool to move once around the sealing body, while moving the rotary tool along a butted portion formed in the preparation step, to carry out friction stir welding. The primary joining step includes employing the primary joining rotary tool provided with a stirring pin having a length dimension greater than a thickness dimension of the sealing body, and carrying out friction stirring with only the stirring pin being brought into contact with a jacket body and the sealing body.
    Type: Application
    Filed: January 4, 2018
    Publication date: May 24, 2018
    Inventors: Hisashi HORI, Nobushiro SEO
  • Publication number: 20180043483
    Abstract: Certain embodiments relate to a heat exchanger plate capable of performing friction stir welding at a deep position of the heat exchanger plate, and improving air-tightness and water-tightness. A method may include a lid groove closing process to insert a lid plate into a lid groove formed at a periphery of a concave groove opening to a surface of a base member. The method may also include a primary joining process to perform friction stirring while relatively moving a primary joining rotary tool equipped with a stirring pin along a butting portion of a side wall of the lid groove and a side surface of the lid plate. In the primary joining process, the rotating stirring pin may be inserted into the butting portion, and the friction stirring may be performed in a state of only the stirring pin being in contact with the base member and the lid plate.
    Type: Application
    Filed: October 16, 2017
    Publication date: February 15, 2018
    Inventors: Hisashi HORI, Nobushiro SEO
  • Patent number: 9821419
    Abstract: The method for manufacturing a heat exchanger plate includes a lid groove closing process to insert a lid plate into a lid groove formed at a periphery of a concave groove opening to a surface of a base member; and a primary joining process to perform friction stirring while relatively moving a primary joining rotary tool equipped with a stirring pin along a butting portion of a side wall of the lid groove and a side surface of the lid plate, and in the primary joining process, the rotating stirring pin is inserted into the butting portion, and the friction stirring is performed in a state of only the stirring pin being in contact with the base member and the lid plate.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: November 21, 2017
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi Hori, Nobushiro Seo
  • Patent number: 9566661
    Abstract: The invention aims at providing a friction stir welding method which can achieve joining a butting portion to a deep location therein by reducing the load on the friction stirring device. The friction stir welding method for joining two metal members (1) using a primary joining rotary tool (F) with a stirring pin (F2) includes a primary joining process in which a rotating stirring pin (F2) is moved to the butting portion formed by butting the metal members (1) against each other and friction stir welding is carried out. In the primary joining process, only the stirring pin (F2) is brought into contact with the metal members (1).
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: February 14, 2017
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Nobushiro Seo, Hisashi Hori
  • Publication number: 20170001257
    Abstract: A friction stir welding method is provided that can prevent defective welding due to a shortage of metal. The friction stir welding method welds metal members (1, 2) using a primary joining rotary tool (F) having a stirring pin (F2), and includes steps of: butting in which the metal members (1, 2) are butted with each other at an angle to form a butted portion (J1); buildup welding in which buildup welding is applied along an inner corner of the metal members (1, 2) formed in the butting step to cover the inner corner by a weld metal (M); and inner corner joining in which only the stirring pin (F2) in rotation is inserted in the inner corner to plastically fluidize the weld metal (M) and the metal members (1, 2) for friction stir welding of the butted portion (J1).
    Type: Application
    Filed: December 16, 2014
    Publication date: January 5, 2017
    Inventors: Nobushiro SEO, Hisashi HORI
  • Publication number: 20160325374
    Abstract: A method of manufacturing a liquid-cooled jacket, includes a preparation step which includes placing a sealing body on a stepped portion to allow a step side surface and a sealing-body side surface of the sealing body to butt each other, and a primary joining step which includes allowing a primary joining rotary tool to move once around the sealing body, while moving the rotary tool along a butted portion formed in the preparation step, to carry out friction stir welding. The primary joining step includes employing the primary joining rotary tool provided with a stirring pin having a length dimension greater than a thickness dimension of the sealing body, and carrying out friction stirring with only the stirring pin being brought into contact with a jacket body and the sealing body.
    Type: Application
    Filed: August 27, 2014
    Publication date: November 10, 2016
    Inventors: Hisashi HORI, Nobushiro SEO
  • Patent number: 9233439
    Abstract: Provided is a method of producing a liquid-cooled jacket wherein deformation of a seal body can be minimized.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: January 12, 2016
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Nobushiro Seo, Shinya Makita, Hisashi Hori, Masanori Tamaishi
  • Publication number: 20150290739
    Abstract: The invention aims at providing a friction stir welding method which can achieve joining a butting portion to a deep location therein by reducing the load on the friction stirring device. The friction stir welding method for joining two metal members (1) using a primary joining rotary tool (F) with a stirring pin (F2) includes a primary joining process in which a rotating stirring pin (F2) is moved to the butting portion formed by butting the metal members (1) against each other and friction stir welding is carried out. In the primary joining process, only the stirring pin (F2) is brought into contact with the metal members (1).
    Type: Application
    Filed: June 25, 2015
    Publication date: October 15, 2015
    Inventors: Nobushiro SEO, Hisashi HORI
  • Publication number: 20150273637
    Abstract: The method for manufacturing a heat exchanger plate includes a lid groove closing process to insert a lid plate into a lid groove formed at a periphery of a concave groove opening to a surface (of a base member; and a primary joining process to perform friction stirring while relatively moving a primary joining rotary tool equipped with a stirring pin along a butting portion of a side wall of the lid groove and a side surface of the lid plate, and in the primary joining process, the rotating stirring pin is inserted into the butting portion, and the friction stirring is performed in a state of only the stirring pin being in contact with the base member and the lid plate.
    Type: Application
    Filed: October 8, 2013
    Publication date: October 1, 2015
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi Hori, Nobushiro Seo