Patents Assigned to UACJ CORPORATION
-
Publication number: 20240229198Abstract: An aluminum alloy sheet for a beverage can body has a composition including 0.10 mass % or more and 0.70 mass % of Si; 0.10 mass % or more and 0.80 mass % or less of Fe; 0.10 mass % or more and 0.30 mass % or less of Cu; 0.50 mass % or more and 1.50 mass % or less of Mn; 1.00 mass % or more and 1.50 mass % or less of Mg, and a balance including Al and inevitable impurities. An n-value in an equivalent plastic strain range of 0.01 to 0.03 is 0.049 or greater. An n-value in an equivalent plastic strain range of 0.3 to 1.1 is 0.063 or less.Type: ApplicationFiled: March 28, 2022Publication date: July 11, 2024Applicant: UACJ CorporationInventors: Tomonori YOSHIDA, Ryohei KOBAYASHI
-
Patent number: 12031200Abstract: A method of manufacturing a fin material made of an aluminum alloy for heat exchangers with no fin buckling deformation and having excellent buckling resistance in a temperature range of 400° C. to 580° C. before a filler alloy melts at the time of brazing is provided. The fin material made of an aluminum alloy for heat exchangers contains 1.0 to 2.0 mass % of Mn, 0.7 to 1.4 mass % of Si, and 0.05 to 0.3 mass % of Fe, with the balance being Al and unavoidable impurities, in which a number density of intermetallic compounds having a circle-equivalent diameter of 0.025 to 0.4 ?m is 3.0×106 particles/mm2 or more, and an amount of solid solution of Mn is 0.3 mass % or less.Type: GrantFiled: December 1, 2020Date of Patent: July 9, 2024Assignee: UACJ CORPORATIONInventors: Yusuke Ohashi, Atsushi Fukumoto, Shogo Yamada, Shinichiro Takise, Takahiro Shinoda
-
Patent number: 12033665Abstract: An example thin substrate built-in hard disk drive includes a magnetic disk in a disk shape having a through-hole at the center, a spindle motor inserted into the through-hole of the magnetic disk and co-rotatably supporting the magnetic disk, and a base plate made of an aluminum alloy and supporting the spindle motor. The base plate has a metallographic structure in which a perimeter of a second phase particle having a longest diameter of 10 ?m or more is 3 mm/mm2 or more, and the number of second phase particles having a longest diameter of 500 ?m or more is 0 particles/mm2.Type: GrantFiled: April 20, 2023Date of Patent: July 9, 2024Assignees: UACJ Corporation, Furukawa Electric Co., Ltd.Inventors: Kotaro Kitawaki, Hideyuki Hatakeyama, Wataru Kumagai, Ryo Sakamoto
-
Publication number: 20240211457Abstract: A data dimensionality reduction method includes: a step of dimensionally reducing a group of data from a high-dimensional space to a low-dimensional space using a distance function that defines a distance between any two vectors in the high-dimensional space; a step of dividing the dimensionally-reduced low-dimensional space into multiple subspaces; an analysis step of performing a regression analysis using a regression model based on at least one belonging data for each divided subspace; and a step of updating p first parameters included in the distance function based on results of the regression analysis in the multiple subspaces.Type: ApplicationFiled: June 10, 2022Publication date: June 27, 2024Applicant: UACJ CORPORATIONInventor: Ryota MAENO
-
Publication number: 20240182221Abstract: A sheet including a pre-storing portion to be a storing portion and a wiring pattern disposed on the sheet are included. The wiring pattern is disposed such that ends of the wiring pattern are disposed on one side along one direction and the wiring pattern is disposed along peripheral edges of the pre-storing portion so as to be along peripheral edges of the storing portion on three sides other than the one side when the storing portion is formed. The sheet is transparent or semitransparent and includes a pre-sealing portion around the pre-storing portion. The wiring pattern is disposed at peripheral edges of the pre-storing portion on the three sides and disposed on the pre-sealing portion.Type: ApplicationFiled: April 7, 2022Publication date: June 6, 2024Applicants: UACJ Corporation, UACJ Foil CorporationInventors: Tomoki TAKEDA, Tomohiro MAEDA, Hisaya KATO
-
Publication number: 20240117473Abstract: An aluminum alloy sheet includes a function of heat joining in a single layer. The aluminum alloy sheet is formed of an aluminum alloy comprising: Si of 1.50 to 5.00 mass %; Fe of 0.01 to 2.00 mass %; and Mn of 0.50 to 2.00 mass %, with the balance being Al and inevitable impurities. In a heating test in which a temperature is raised from 300° C. to 400° C. at an average temperature rising rate of 60° C./min or less and held at 600±3° C. for 5±3 minutes, average grain size in a plane parallel to a rolled surface after the heating test is 370 ?m or more, and an average number of grains in a sheet thickness direction after the heating test is 1.5 pieces or more.Type: ApplicationFiled: January 6, 2022Publication date: April 11, 2024Applicant: UACJ CorporationInventors: Yuki Totani, Takeyoshi Doko
-
Publication number: 20240119967Abstract: An example thin substrate built-in hard disk drive includes a magnetic disk in a disk shape having a through-hole at the center, a spindle motor inserted into the through-hole of the magnetic disk and co-rotatably supporting the magnetic disk, and a base plate made of an aluminum alloy and supporting the spindle motor. The base plate has a metallographic structure in which a perimeter of a second phase particle having a longest diameter of 10 ?m or more is 3 mm/mm2 or more, and the number of second phase particles having a longest diameter of 500 ?m or more is 0 particles/mm2.Type: ApplicationFiled: April 20, 2023Publication date: April 11, 2024Applicants: UACJ Corporation, Furukawa Electric Co., Ltd.Inventors: Kotaro KITAWAKI, Hideyuki HATAKEYAMA, Wataru KUMAGAI, Ryo SAKAMOTO
-
Publication number: 20240102134Abstract: A method of producing aluminum alloy material having a thermal bonding function in a single layer and including 2.00 mass % to 3.00 mass % Si, 0.01 mass % to 0.50 mass % Fe, and 0.80 mass % to 1.50 mass % Mn includes a casting process performing a twin roll type casting to form a plate having a thickness of 3 mm to 12 mm by rotating a roll having a diameter D (mm) at peripheral velocity v (mm/min) being satisfying a following formula of 0.057×v+0.0016×D?33.54.Type: ApplicationFiled: December 23, 2021Publication date: March 28, 2024Applicant: UACJ CorporationInventors: Ram SONG, Keita FUKAWA, Yuki TOTANI
-
Patent number: 11935815Abstract: A coolant passageway (2) of a heat sink (1) has a coolant lead-in part (21), a coolant lead-out part (22), coolant-contact parts (23), coolant-transit parts (25), and connecting parts (24). The coolant-contact parts (23) are disposed spaced apart from one another along a coolant path leading from the coolant lead-in part (21) to the coolant lead-out part (22) and are configured such that they bring the coolant into contact with a cooling-wall part. The coolant-transit parts (25) are disposed between adjacent coolant-contact parts (23) and are configured such that the coolant can transit from upstream-side coolant-contact parts (23) to downstream-side coolant-contact parts (23) in the coolant paths. The connecting parts (24) are interposed between the coolant-transit parts (25) and the coolant-contact parts (23) and have a passageway cross-sectional area that is smaller than those of the coolant-contact parts (23) and the coolant-transit parts (25).Type: GrantFiled: February 6, 2020Date of Patent: March 19, 2024Assignee: UACJ CORPORATIONInventors: Yoshiharu Sakai, Tetsuro Hata, Gaku Torikai
-
Patent number: 11932956Abstract: An aluminum member includes: a base material made of aluminum or an aluminum alloy; and an anodized coating including a barrier layer on a surface of the base material and a porous layer on the barrier layer, wherein the anodized coating contains phosphorus (P) and sulfur (S), and has a thickness of 100 ?m or less, and, in a depth direction heading from a surface of the anodized coating toward the base material, a depth providing a maximum content of S in a region situated at a depth of 500 nm or more from the surface of the anodized coating is larger than a depth providing a maximum content of P, and an inequality (the maximum content of S)>(the maximum content of P) holds.Type: GrantFiled: September 17, 2020Date of Patent: March 19, 2024Assignee: UACJ CORPORATIONInventors: Mihoko Kikuchi, Junji Nunomura
-
Patent number: 11935559Abstract: This magnetic disk device is a 3.5-inch magnetic disk device equipped with magnetic disks formed from an aluminum alloy substrate. The magnetic disks arranged in a stacked manner have a thickness Td of 0.3 mm to 0.6 mm, the number N of magnetic disks involved is 10 to 16, and spacers disposed between the magnetic disks have an outside diameter 2 Rso of 35 mm to 65 mm. The outside diameter 2 Rso (mm) of the spacers satisfies 2 Rso??60 Td+70 and 2 Rso??0.5 N2?+16.5 N?73.Type: GrantFiled: November 11, 2021Date of Patent: March 19, 2024Assignees: UACJ CORPORATION, FURUKAWA ELECTRIC CO., LTD.Inventors: Naoki Kitamura, Kotaro Kitawaki, Hideyuki Hatakeyama, Ryohei Yamada, Toshihiro Nakamura
-
Patent number: 11920221Abstract: An aluminum alloy sheet has a composition comprising 0.5% or less by mass of Si, 0.7% or less by mass of Fe, 0.3% or less by mass of Cu, 0.4 to 1.5% by mass of Mn, 0.7 to 1.5% by mass of Mg and an balance comprising Al and inevitable impurities. A degree of integration in the Goss orientation is 1.5 or more. A degree of integration in the Cu orientation is 6.2 or less. A tensile strength is 200 to 310 MPa. An areal ratio of an ?-Al—Fe—Mn—Si based intermetallic compound with an equivalent circle diameter of 0.5 ?m or more is preferably 2.6% or more.Type: GrantFiled: August 28, 2019Date of Patent: March 5, 2024Assignee: UACJ CorporationInventors: Tomoyuki Kudo, Ryohei Kobayashi
-
Publication number: 20240034889Abstract: Provided is a resin-coated aluminum alloy sheet characterized in that the sheet has a coating resin layer formed of a cured resin composition comprising an epoxy resin and a curing agent, the coating resin layer comprising a graphite particle with an amount of 5.0 to 25.0 parts by mass relative to a total of 100.0 parts by mass of the epoxy resin and the curing agent and a silica particle with an amount of 3.0 to 28.0 parts by mass relative to a total of 100.0 parts by mass of the epoxy resin and the curing agent, and a thickness of the coating resin layer being 2.0 to 25.0 ?m. According to the present invention, it is possible to provide the resin-coated aluminum alloy sheet having both a good heat radiative property and a high moisture resistance.Type: ApplicationFiled: November 7, 2022Publication date: February 1, 2024Applicant: UACJ CorporationInventors: Hironori Watanabe, Osamu Kato
-
Publication number: 20240021213Abstract: An aluminum alloy substrate for a magnetic disc is made of an aluminum alloy, containing Fe: 1.80 mass % or less, Mn: 0.70 mass % or less, Ni: 2.50 mass % or less, Si: 2.50 mass % or less, Cu: 1.00 mass % or less, Zn: 0.48 mass % or less and Mg: 1.00 to 3.50 mass %, wherein a total content of Fe, Mn and Ni is 1.60 to 4.50 mass % and a mass ratio of Cu/Zn is 0.01 to 0.35 or 6.00 to 50.00, with a balance being Al and inevitable impurities.Type: ApplicationFiled: June 14, 2023Publication date: January 18, 2024Applicants: UACJ CORPORATION, FURUKAWA ELECTRIC CO., LTD.Inventors: Kotaro KITAWAKI, Hideyuki HATAKEYAMA, Wataru KUMAGAI, Ryo SAKAMOTO
-
Publication number: 20240018633Abstract: An aluminum alloy disc blank for a magnetic disc made of an aluminum alloy containing Mg: 3.40 to 3.90 mass % with the balance being A1 and inevitable impurities, wherein a conductivity of the aluminum alloy disc blank is 36.0% IACS or higher.Type: ApplicationFiled: June 14, 2023Publication date: January 18, 2024Applicants: UACJ CORPORATION, FURUKAWA ELECTRIC CO., LTD.Inventors: Kotaro KITAWAKI, Hideyuki HATAKEYAMA, Wataru KUMAGAI, Ryo SAKAMOTO
-
Patent number: 11866807Abstract: An aluminum alloy pipe includes a pipe body portion made of an Al—Mg series alloy that includes Mg at a concentration equal to or higher than 0.7 mass % and lower than 2.5 mass % and Ti at a concentration higher than 0 mass % and equal to or lower than 0.15 mass %, with the balance being Al and unavoidable impurities, and a Zn-containing layer being outside the pipe body portion and including Zn being diffused in the Al—Mg series alloy at a concentration equal to or higher than 0.1 mass %.Type: GrantFiled: April 24, 2020Date of Patent: January 9, 2024Assignee: UACJ Corporation; UACJ EXTRUSION CORPORATIONInventors: Taichi Suzuki, Kiyotake Sawa, Shuhei Shakudo
-
Patent number: 11828293Abstract: A closed impeller (1) includes an impeller main body (2), which is composed of an aluminum alloy and has blades (22) that protrude from a hub (21). A shroud (3) covers the blades. The blades and the shroud are joined together by brazed joints (4). The shroud (3) is formed from a brazing sheet (30) that comprises a core material (31), which is composed of an aluminum alloy, and a filler material layer (320), which is disposed on an outermost surface (33) of the shroud that opposes or faces the blades when the shroud is brazed to the blades.Type: GrantFiled: November 26, 2019Date of Patent: November 28, 2023Assignees: DAIKIN INDUSTRIES, LTD, UACJ CORPORATIONInventors: Tadashi Okada, Kosuke Nishimura, Kaoru Ueda, Yasunaga Itoh
-
Patent number: 11819956Abstract: An aluminum alloy brazing sheet used for brazing in an inert gas atmosphere without using a flux includes a brazing material cladded onto at least one side surface of a core material. An oxide is formed on a surface of the aluminum alloy brazing sheet by brazing heating, the oxide including any one or two or more of Mg, Li, and Ca and having a volume change ratio of 0.990 or less to a surface oxide film formed before brazing heating, and an atomic molar ratio of Mg, Li, and Ca to Al in the oxide formed on the surface of the aluminum alloy brazing sheet before brazing heating is 0.50 or less. The present invention provides an aluminum alloy brazing sheet having excellent brazability in brazing in an inert gas atmosphere without using a flux, and a method for manufacturing the same.Type: GrantFiled: April 3, 2020Date of Patent: November 21, 2023Assignee: UACJ CorporationInventors: Tomoki Yamayoshi, Taichi Suzuki, Hirokazu Tanaka
-
Patent number: 11813700Abstract: An aluminum alloy brazing sheet is formed of a four-layer material formed of a brazing material, an intermediate material, a core material, and a brazing material. The intermediate material comprises Mg of 0.40 to 6.00 mass %, and has a total of contents of Mn, Cr, and Zr being 0.10 mass % or more. The core material comprises Mg of 0.20 to 2.00 mass % and comprises one or two or more of Mn of 1.80 mass % or less, Si of 1.05 mass % or less, Fe of 1.00 mass % or less, Cu of 1.20 mass % or less, Ti of 0.30 mass % or less, Zr of 0.30 mass % or less, and Cr of 0.30 mass % or less. Each of the core material and the intermediate material has a grain size of 20 to 300 ?m.Type: GrantFiled: July 6, 2020Date of Patent: November 14, 2023Assignee: UACJ CORPORATIONInventors: Tomoki Yamayoshi, Hidetoshi Kumagai, Hirokazu Tanaka, Taketoshi Toyama, Naoki Sugimoto, Nobuhiro Honma, Shogo Yamada, Takahiro Shinoda
-
Patent number: 11813687Abstract: An aluminum alloy brazing sheet used for brazing in an inert gas atmosphere without using flux includes a core material of aluminum or aluminum alloy, and a brazing material of aluminum alloy including Si of 4.0 mass % to 13.0 mass % and cladding one side surface or both side surfaces of the core material. One or both of the core material and the brazing material includes any one or two or more types of X atoms (X is Mg, Li, Be, Ca, Ce, La, Y, and Zr). The aluminum alloy brazing sheet is a brazing sheet in which oxide particles including the X atoms and having a volume change ratio of 0.99 or lower with respect to an oxide film before brazing heating are formed on a surface thereof, by brazing heating.Type: GrantFiled: July 6, 2021Date of Patent: November 14, 2023Assignee: UACJ CORPORATIONInventors: Tomoki Yamayoshi, Atsushi Fukumoto