Patents Assigned to Nippon Light Metal Company, Ltd.
  • Patent number: 11360381
    Abstract: Provided are: a support frame for pellicle that has both low dust generation property and high light resistance, and further has an ion elution amount which is reduced to the utmost limit to an extent that haze is not generated even when a short wavelength laser is used for exposure light source, a pellicle using the support frame for pellicle, and a method for efficiently manufacturing the support frame for pellicle, support frame for pellicle which comprises a frame member comprising aluminum or aluminum alloy and an inorganic coating layer formed on the surface of the frame member, wherein the main chain of the inorganic coating layer is constituted by a —Si—O—Si—O— bond. An anodized film is preferably formed between the frame member and the inorganic coating layer.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: June 14, 2022
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventor: Takayuki Yamaguchi
  • Publication number: 20220161354
    Abstract: The present invention includes a joining process in which a first metal member and a second metal member are joined with an auxiliary member interposed therebetween by moving a rotary tool along a butted portion in a state where the rotary tool being rotated is inserted only from a front face side of the auxiliary member, only a stirring pin is in contact with the auxiliary member, a base end side of the stirring pin is exposed, and an outer circumferential face of the stirring pin is slightly in contact with the first metal member and the second metal member, and the auxiliary member is provided with an inclined face on at least one side face in such a form that the auxiliary member has a smaller dimension with increasing distance from a front face, and at least one of the first metal member and the second metal member is provided with an inclined face corresponding to the inclined face of the auxiliary member and inclined from the front face toward a back face.
    Type: Application
    Filed: December 24, 2019
    Publication date: May 26, 2022
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Nobushiro SEO, Keita OIKAWA, Ryo YOSHIDA
  • Patent number: 11332841
    Abstract: An electrode holder and a method for producing an electrode for an aluminum electrolytic capacitor are provided that enable prevention of exfoliation of a porous layer during chemical formation even when the porous layer is formed on an aluminum electrode so as to have a thickness of 200 micrometers or greater. When an aluminum electrode 10 having at least one surface 11 on which a porous layer 17 having a thickness of 200 micrometers or greater is formed is subjected to chemical formation in a chemical formation solution, the aluminum electrode 10 is held by an electrode holder 50. The electrode holder 50 includes: an insulating first support plate 51 configured to overlap the one surface 11 of the aluminum electrode 10; an insulating second support plate 52 configured to overlap the other surface 12 of the aluminum electrode 10; and a connecting part 53 configured to connect the first support plate 51 and the second support plate 52 to each other.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: May 17, 2022
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Yuta Shimizu, Masahiko Katano, Toshifumi Taira, Shinya Sone
  • Patent number: 11311963
    Abstract: The method comprises a primary joining process in which primary joining is performed by friction stirring by moving a rotary tool (F) once around a recessed part (13) along a first overlap part (H1) in a state where only a stirring pin (F2) of the rotary tool provided with the stirring pin is inserted in the first overlap part (H1) from a front surface (3b) of a sealing body (3) and is in contact with a jacket body (2) and the sealing body (3). In the primary joining process, the rotary tool (F), which is provided with a flat surface (F4) orthogonal to a rotational axis of the stirring pin (F2) and a projection (F5) projecting from the flat surface (F4) at a tip part of the stirring pin (F2), is employed, and the first overlap part (H1) is joined by bringing the flat surface (F4) into contact with only the sealing body (3) and inserting a tip end of the projection (F5) more deeply than the first overlap part (H1).
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: April 26, 2022
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi Hori, Nobushiro Seo
  • Patent number: 11309137
    Abstract: An electrode for an aluminum electrolytic capacitor and a method for producing the same are provided that enable improvement of water resistance of a chemical formation film having a withstand voltage of 400 V or higher. The electrode for an aluminum electrolytic capacitor is produced by performing a hydration step of bringing the aluminum electrode into contact with a hydration treatment liquid having a temperature of 78° C. to 92° C. to form a hydrated film on the aluminum electrode and a chemical formation step of performing chemical formation at a chemical formation voltage of 400 V or higher in a chemical formation solution having a temperature of 58° C. to 78° C. to form the chemical formation film on the aluminum electrode. In this method, the amount of the hydrated film is made appropriate.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: April 19, 2022
    Assignee: NIPPON LIGHT METAL COMPANY, LTD
    Inventors: Yuta Shimizu, Shuhei Enoki, Masahiko Katano, Toshifumi Taira, Kazuya Fujimoto, Shinya Sone
  • Publication number: 20220111465
    Abstract: An object of the present invention is to provide a joining method by which metal members can be suitably joined to each other. The present invention is characterized by including a friction stirring process in which the first metal member, the second metal member, and the auxiliary member are joined to one another by moving the rotary tool along the inner corner portion in a state where the tip side pin which is being rotated is inserted into the inner corner portion, is in contact with the first metal member, the second metal member, and the auxiliary member, and an outer circumferential face of the base side pin is pressed against the auxiliary member.
    Type: Application
    Filed: October 15, 2019
    Publication date: April 14, 2022
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Nobushiro SEO, Keita OIKAWA
  • Patent number: 11278945
    Abstract: A die set for bending a metal plate workpiece includes a lower die for placing the workpiece, an upper die having a pressing surface which presses the workpiece toward the lower die by movement, a lower movable part provided in the lower die and being slidable in the same direction as the direction of the upper die movement, and a gas spring elastically supporting the lower movable part from below. The pressing surface of the upper die is moved, contacts with the upper surface of the workpiece and presses the workpiece toward the lower die. The lower movable part being elastically supported by the gas spring from below brings an opposing surface into contact with the lower surface of the workpiece and makes the upper die to be close to the lower die while applying force in the upward which is opposite direction of the upper die movement.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: March 22, 2022
    Assignees: NIKKEIKIN ALUMINUM CORE TECHNOLOGY COMPANY, LTD., NIPPON LIGHT METAL COMPANY, LTD., HORIKAWA INDUSTRY CO. LTD.
    Inventors: Mitsunori Kato, Toshiaki Yamazaki, Eiji Anzai, Shoichi Horikawa, Hiroyuki Horikawa
  • Publication number: 20220055154
    Abstract: A joining method including an overlapping step of overlapping a front surface of a first metal member and a back surface of second metal member such that the front surface is opposed to the back surface; and a welding step of performing a laser welding and a MIG welding by using a hybrid welding machine including a preceding laser welding unit and a following MIG welding unit, in which the laser welding is performed by emitting a laser beam onto a front surface of the second metal member, the MIG welding is performed on an inner corner portion formed by the front surface of the first metal member and an end surface of the second metal member, and a target position for the laser beam from the laser welding unit is located against the second metal member relative to a target position for a MIG arc by the MIG welding unit.
    Type: Application
    Filed: July 25, 2019
    Publication date: February 24, 2022
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Ryo YOSHIDA, Hiroshi KANEKI
  • Patent number: 11248281
    Abstract: An aluminum member includes: a substrate formed of aluminum or an aluminum alloy that contains 0 to 10% by mass of magnesium, 0.1% by mass or less of iron, and 0.1% by mass or less of silicon and a balance of which is aluminum and unavoidable impurities; and an anodic oxide coating formed on a surface of the substrate. A surface of the substrate on the anodic oxide coating side has an arithmetical mean height Sa of 0.1 to 0.5 ?m, a maximum height Sz of 0.2 to 5 ?m, and an mean width of roughness profile elements Rsm of 0.5 to 10 ?m, where the arithmetical mean height Sa, the maximum height Sz, and the mean width of roughness profile elements Rsm are measured after the anodic oxide coating is removed.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: February 15, 2022
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Yusuke Seki, Yoshihiro Taguchi
  • Patent number: 11241756
    Abstract: An edge of each of a first metal member and a second metal member is formed to have a U-shaped cross section with a first horizontal plate projecting from a base edge of a vertical plate, and with a second horizontal plate projecting from a top edge of the vertical plate. The second metal member includes a projecting part. The joining method includes: an abutting step of forming an abutted part by abutting a front surface of the first horizontal plate the first metal member against a second side surface of the second metal member; and a joining step of performing friction stir welding of the first metal member and the second metal member by inserting a stirring pin from the projecting part and moving a joining rotating tool along an inner corner at the top edge of the vertical plate of the second metal member while making only the stirring pin in contact with the first metal member and the second metal member.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: February 8, 2022
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi Hori, Nobushiro Seo
  • Publication number: 20210402510
    Abstract: An edge of each of a first metal member and a second metal member is formed to have a U-shaped cross section with a first horizontal plate projecting from a base edge of a vertical plate, and with a second horizontal plate projecting from a top edge of the vertical plate. The second metal member includes a projecting part. The joining method includes: an abutting step of forming an abutted part by abutting a front surface of the first horizontal plate the first metal member against a second side surface of the second metal member; and a joining step of performing friction stir welding of the first metal member and the second metal member by inserting a stirring pin from the projecting part and moving a joining rotating tool along an inner corner at the top edge of the vertical plate of the second metal member while making only the stirring pin in contact with the first metal member and the second metal member.
    Type: Application
    Filed: November 2, 2017
    Publication date: December 30, 2021
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi HORI, Nobushiro SEO
  • Publication number: 20210370433
    Abstract: This invention is characterized by including: a primary joining process in which a coarse portion having a predetermined width is formed in the vicinity of a step side face within a plasticized region while a rotary tool is being moved one round along a first butted portion to perform friction stirring in a state that a tip of a stirring pin of the rotary tool which is rotated is inserted to the same depth as or slightly deeper than the step bottom face and only the stirring pin is slightly in contact with at least an upper portion of a jacket body; and an inspection process in which a passed position of the stirring pin is specified by performing a defect inspection to detect the coarse portion after the primary joining process.
    Type: Application
    Filed: July 25, 2019
    Publication date: December 2, 2021
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi HORI, Nobushiro SEO
  • Patent number: 11185946
    Abstract: Provided is a method for manufacturing a liquid cooling jacket including a jacket body and a sealing body joined to the jacket body. The method includes steps of: preparing; placing; first primary joining with a rotary tool; and second primary joining with the rotary tool. A rotary tool includes a base end pin and a distal end pin. The distal end pin includes a flat surface and a protrusion extending from the flat surface. In the first primary joining and the second primary joining, friction stirring is performed in a state where a front surface of the sealing body is brought in contact with an outer peripheral surface of the base end pin, the sealing body is brought in contact with the flat surface of the distal end pin, and the jacket body is brought in contact with the protrusion.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: November 30, 2021
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi Hori, Nobushiro Seo, Kosuke Yamanaka
  • Patent number: 11185945
    Abstract: Provided is a method for manufacturing a liquid cooling jacket including a jacket body and a sealing body joined to the jacket body. The method includes steps of: preparing; placing; first primary joining with a rotary tool; and second primary joining with the rotary tool. The rotary tool includes a base end pin and a distal end pin. The distal end pin includes a flat surface and a protrusion protruding from the flat surface. In the first primary joining and the second primary joining, friction stirring is performed in a state where the jacket body and the sealing body are brought in contact with the flat surface of the distal end pin and the base end pin and only the jacket body is brought in contact with a distal end surface of the protrusion.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: November 30, 2021
    Assignee: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi Hori, Nobushiro Seo, Kosuke Yamanaka
  • Publication number: 20210363616
    Abstract: Aluminum alloy sheet for battery lid use excellent in deformation resistance, formability, and heat radiation ability, which aluminum alloy sheet for battery lid use enabling formation of an integrated explosion-proof valve with little variation in operating pressure and excellent in cyclic fatigue resistance, and a method of production of the same are provided, the aluminum alloy sheet for battery lid use for forming an integrated explosion-proof valve having a component composition containing Fe: 0.85 to 1.50 mass %, Mn: 0.30 to 0.70 mass %, Ti: 0.002 to 0.15 mass %, and B: less than 0.05 mass %, having a balance of Al and impurities, having an Fe/Mn ratio restricted to 1.8 to 3.5, restricting, as impurities, Si to less than 0.40 mass %, Cu to less than 0.03 mass %, Mg to less than 0.05 mass %, and V to less than 0.03 mass %, having a 0.2% yield strength of 40 MPa or more, having a value of elongation of 40% or more, having a conductivity of 53.
    Type: Application
    Filed: December 5, 2018
    Publication date: November 25, 2021
    Applicant: Nippon Light Metal Company, Ltd.
    Inventors: Yuuichi TAMAKI, Keiji KANAMORI, Daisuke SHIMOSAKA, Toshiya ANAMI
  • Publication number: 20210363622
    Abstract: Aluminum alloy sheet for battery lid use excellent in heat radiation ability, formability, and work softenability, which aluminum alloy sheet for battery lid use enabling formation of an integrated explosion-proof valve with little variation in operating pressure and excellent in cyclic fatigue resistance, and a method of production of the same are provided, the aluminum alloy sheet for battery lid use for forming an integrated explosion-proof valve having a component composition containing Fe: 1.05 to 1.50 mass %, Mn: 0.15 to 0.70 mass %, Ti: 0.002 to 0.15 mass %, and B: less than 0.03 mass %, having a balance of Al and impurities, having an Fe/Mn ratio restricted to 1.8 to 7.0, restricting, as impurities, Si to less than 0.40 mass %, Cu to less than 0.03 mass %, Mg to less than 0.05 mass %, and V to less than 0.03 mass %, having a conductivity of 53.
    Type: Application
    Filed: December 5, 2018
    Publication date: November 25, 2021
    Applicant: Nippon Light Metal Company, Ltd.
    Inventors: Yuuichi TAMAKI, Keiji KANAMORI, Daisuke SHIMOSAKA, Toshiya ANAMI
  • Publication number: 20210346979
    Abstract: The invention has a feature of comprising a butting process of forming a stepped butted portion and a joining process of performing friction-stir-welding on the stepped butted portion, wherein the rotary tool includes a base side pin having a taper angle larger than a taper angle of a tip side pin, and a pin step portion in a staircase shape is formed on an outer circumferential face of the base side pin, and wherein in the joining process, a rotation direction and a translation method of the rotary tool are set such that the second metal member is on an advancing side, a target angle by which a rotation axis of the rotary tool is inclined toward the second metal member is set such that a burr formed on a front face of the second metal member after the joining process has a thickness between 0 and 130 ?m.
    Type: Application
    Filed: June 17, 2019
    Publication date: November 11, 2021
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi HORI, Kosuke YAMANAKA, Takeshi HANDA
  • Publication number: 20210340646
    Abstract: Aluminum alloy sheet for battery lid use excellent in heat radiation ability, formability, and work softenability, which aluminum alloy sheet for battery lid use enabling formation of an integrated explosion-proof valve with little variation in operating pressure and excellent in cyclic fatigue resistance, and a method of production of the same are provided, the aluminum alloy sheet for battery lid use for forming an integrated explosion-proof valve having a component composition containing Fe: 1.05 to 1.50 mass %, Mn: 0.15 to 0.70 mass %, Ti: 0.002 to 0.15 mass %, and B: less than 0.04 mass %, having a balance of Al and impurities, having an Fe/Mn ratio restricted to 1.8 to 7.0, restricting, as impurities, Si to less than 0.40 mass %, Cu to less than 0.03 mass %, Mg to less than 0.05 mass %, and V to less than 0.03 mass %, having a conductivity of 53.
    Type: Application
    Filed: December 5, 2018
    Publication date: November 4, 2021
    Applicant: Nippon Light Metal Company, Ltd.
    Inventors: Yuuichi TAMAKI, Keiji KANAMORI, Daisuke SHIMOSAKA, Toshiya ANAMI
  • Publication number: 20210276120
    Abstract: The present invention includes: a preparation step in which a stepped portion including step bottom and step side surfaces is formed along an inner circumferential edge of a jacket body; a placing step in which a sealing body is placed on the jacket body forming first and second butted sections; and a main joining step in which friction stir welding is performed by moving a rotary tool along the first butted section, while only a stirring pin of the rotary tool is in contact with only the sealing body. During friction stir welding, a central axis of rotation of the rotary tool is tilted towards a central side of the jacket body so that the angle of tilt with respect to the step side surface is equal to the angle of inclination of an outer circumferential surface of the stirring pin with respect to the central axis of rotation.
    Type: Application
    Filed: November 20, 2017
    Publication date: September 9, 2021
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Hisashi HORI, Nobushiro SEO
  • Publication number: 20210268599
    Abstract: The present invention is characterized by including a primary joining process to perform friction stirring to a first butted portion by moving a stirring pin one round around a sealing body with a predetermined depth along a set moving route set at an inner position relative to an outer peripheral side face in a state that only the stirring pin of a rotary tool being rotated is inserted into the sealing body and that an outer face of the stirring pin is slightly in contact with a step side face of a peripheral wall step portion. In the primary joining process, after only the stirring pin being rotated is inserted into a starting position set at a position on an inner side relative to the set moving route, the stirring pin is gradually inserted to the predetermined depth while an axis of the rotary tool is moved to a position on the set moving route.
    Type: Application
    Filed: March 12, 2019
    Publication date: September 2, 2021
    Applicant: Nippon Light Metal Company, Ltd.
    Inventors: Nobushiro SEO, Hisashi HORI