Patents Assigned to UACJ CORPORATION
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Patent number: 10930522Abstract: A semiconductor layer of the present invention is a semiconductor layer including: a pn junction at which an n-type semiconductor (Al2O3 (n-type)) and a p-type semiconductor (Al2O3 (p-type)) are joined, the n-type semiconductor (Al2O3 (n-type)) having a donor level that is formed by causing an aluminum oxide film (Al2O3) to excessively contain aluminum (Al), the p-type semiconductor (Al2O3 (p-type)) having an acceptor level that is formed by causing an aluminum oxide film (Al2O3) to excessively contain oxygen (O).Type: GrantFiled: June 8, 2018Date of Patent: February 23, 2021Assignee: UACJ CorporationInventor: Koichi Ashizawa
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Publication number: 20210039207Abstract: A flux-free brazing aluminum alloy brazing sheet includes: a core material formed of aluminum alloy comprising Si of 0.50 to 0.90 mass %, Cu of 0.30 to 2.50 mass %, and Mn of 1.40 to 1.80 mass %, with a Mg content limited to 0.05 mass % or less, and with the balance being Al and inevitable impurities; an intermediate material being formed of aluminum alloy comprising Mg of 0.40 to 1.00 mass %, and Zn of 2.00 to 6.00 mass %, with the balance being Al and inevitable impurities; and a brazing material being formed of aluminum alloy comprising Si of 6.00 to 13.00 mass %, Mg of 0.05 to 0.40 mass %, and Bi of 0.010 to 0.050 mass %, with the balance being Al and inevitable impurities.Type: ApplicationFiled: March 5, 2019Publication date: February 11, 2021Applicants: UACJ Corporation, DENSO CORPORATIONInventors: Tatsuya Ide, Yutaka Yanagawa, Shogo Yamada, Takahiro Shinoda, Shingo Ono
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Patent number: 10916357Abstract: An object of the present invention is to provide an aluminum alloy foil for an electrode current collector and a manufacturing method thereof, the foil having a high strength and high strength after a drying process after the application of the active material while keeping a high electrical conductivity. Disclosed is a method for manufacturing an aluminum alloy foil for electrode current collector, including: forming by continuous casting an aluminum alloy sheet containing 0.03 to 1.0% of Fe, 0.01 to 0.2% of Si, 0.0001 to 0.2% of Cu, with the rest being Al and unavoidable impurities, performing cold rolling to the aluminum alloy sheet at a cold rolling reduction of 80% or lower, and performing heat treatment at 550 to 620° C. for 1 to 15 hours.Type: GrantFiled: July 29, 2011Date of Patent: February 9, 2021Assignee: UACJ CorporationInventors: Masakazu Seki, Satoshi Suzuki, Kenji Yamamoto, Tomohiko Furutani
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Publication number: 20210031289Abstract: A brazing method for brazing a material without using a flux includes performing brazing in an inert gas atmosphere, in a state in which the material to be brazed is covered with a cover member formed of an upper cover portion covering the whole upper portion of the material to be brazed and side cover portions covering at least some of the side portions of the material to be brazed, with the upper cover portion contacting the upper portion of the material to be brazed, and the material to be brazed and the cover member are held with a heat transmission promoting member formed of an upper heat transmission promoting portion and a lower heat transmission promoting portion, with the upper heat transmission promoting portion contacting the upper cover portion, and with the lower heat transmission promoting portion contacting the lower portion of the material to be brazed.Type: ApplicationFiled: January 30, 2019Publication date: February 4, 2021Applicant: UACJ CorporationInventor: Yutaka Yanagawa
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Publication number: 20210033359Abstract: An aluminum alloy heat exchanger for an exhaust gas recirculation system, which is a heat exchanger installed in an exhaust gas recirculation system of an internal combustion engine to cool the exhaust gas comprises a tube provided with a sacrificial anticorrosion material on a side along which the exhaust gas passes, and a fin brazed to the surface side of the sacrificial anticorrosion material of the tube, the fin having a pitting potential higher than the pitting potential of the surface of the sacrificial anticorrosion material of the tube. According to the disclosure, an aluminum alloy heat exchanger for an exhaust gas recirculation system having a long service life with effective function of the sacrificial anticorrosion even under an acidic environment in which an oxide film is weakened as a whole and pitting corrosion is unlikely to occur can be provided.Type: ApplicationFiled: March 27, 2019Publication date: February 4, 2021Applicants: UACJ Corporation, DENSO CORPORATIONInventors: Yoshiyuki Oya, Tomohiro Shoji, Atsushi Fukumoto, Kouki Nishiyama, Toru Ikeda, Takahiro Shinoda
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Patent number: 10907241Abstract: Provided is an aluminum alloy plate for blow molding comprising: 0.3% by mass or more and 1.8% by mass or less of Mg; 0.6% by mass or more and 1.6% by mass or less of Si; and 0.2% by mass or more and 1.2% by mass or less of Mn; wherein, in at least one surface of the aluminum alloy plate for blow molding, X and Y satisfy the following relations: 0.10?X, and, Y??8.0X+10.8; wherein X represents the ratio of regions whose valley depth in a roughness curve is 0.3 ?m or more; and Y represents the yield stress upon deformation of the aluminum alloy plate for blow molding under predetermined conditions.Type: GrantFiled: June 26, 2013Date of Patent: February 2, 2021Assignee: UACJ CORPORATIONInventors: Tomoyuki Kudo, Makoto Saga
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Publication number: 20210025663Abstract: An aluminum alloy heat exchanger for an exhaust gas recirculation system, the heat exchanger obtained by brazing: a tube material comprising a core material comprising 0.05 mass % to 1.50 mass % of Si, 0.05 mass % to 3.00 mass % of Cu, and 0.40 mass % to 2.00 mass % of Mn, and a sacrificial anticorrosion material comprising 2.00 mass % to 6.00 mass % of Zn, clad on an inner side surface of the core material; and a fin material comprising a core material comprising 0.05 mass to 1.50 mass % of Si, and 0.40 mass % to 2.00 mass % of Mn, and a brazing material comprising 3.00 mass % to 13.00 mass % of Si, clad on both surfaces of the core material; the heat exchanger having a ratio of a surface area Sb (mm2) of the fin material to a surface area Sa (mm2) of the sacrificial anticorrosion material of less than 200%.Type: ApplicationFiled: March 27, 2019Publication date: January 28, 2021Applicants: UACJ Corporation, DENSO CORPORATIONInventors: Yoshiyuki Oya, Tomohiro Shoji, Atsushi Fukumoto, Kouki Nishiyama, Toru Ikeda, Takahiro Shinoda
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Patent number: 10895277Abstract: A welded joint comprising an aluminum-based base material comprising an aluminum alloy or pure aluminum and a copper-based base material comprising a copper alloy or pure copper joined by a weld metal portion is provided. The weld metal portion contains copper in ranges of less than 75% by mass and silicon in ranges of less than 13% by mass and has a higher content of copper and silicon than the aluminum-based base material.Type: GrantFiled: April 10, 2018Date of Patent: January 19, 2021Assignee: UACJ CorporationInventors: Takashi Murase, Shohei Yomogida, Toshihiko Fukuda
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Publication number: 20210008864Abstract: A peeling apparatus for an aluminum plate material is configured to be able to peel one or a plurality of aluminum plate materials from a stack of aluminum plate materials in which a plurality of aluminum plate materials are pressure-annealed and adhered to each other. The peeling apparatus includes a vibration transmitting section that is configured to be able to abut an outer peripheral surface of an aluminum plate material and is configured to be able to apply vibration along a stacking direction of the stack to the aluminum plate material, and a transducer that generates the vibration, and transmits the vibration to the vibration transmitting section.Type: ApplicationFiled: September 28, 2020Publication date: January 14, 2021Applicants: FURUKAWA ELECTRIC CO., LTD., UACJ CORPORATIONInventors: Toshihiro NAKAMURA, Hideki TAKAHASHI, Kimie IMAKAWA, Naoki KITAMURA, Kotaro KITAWAKI, Takuya MURATA
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Patent number: 10889881Abstract: An aluminum alloy pipe produced by porthole extrusion includes: Mg at a concentration equal to or higher than 0.7% (mass %, the same applies hereinafter) and lower than 1.5%; Ti at a concentration higher than 0% and equal to or lower than 0.15%; with the balance being Al and unavoidable impurities. As the unavoidable impurities, Si has a limited concentration of 0.20% or lower, Fe 0.20% or lower, Cu 0.05% or lower, Mn 0.10% or lower, Cr 0.10% or lower, and Zn 0.10% or lower. Difference between the maximum value and the minimum value of the Mg concentration in a lengthwise direction of the pipe is 0.2% or lower, and the average crystal grain size in a cross-section perpendicular to the lengthwise direction is 300 ?m or smaller. An aluminum alloy pipe used for piping or hose joints and having excellent strength, corrosion resistance, and processability can be provided.Type: GrantFiled: April 1, 2016Date of Patent: January 12, 2021Assignees: UACJ CORPORATION, UACJ EXTRUSION CORPORATIONInventors: Taichi Suzuki, Hidenori Hatta, Takumi Ishizaka
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Publication number: 20210002783Abstract: 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: ApplicationFiled: September 17, 2020Publication date: January 7, 2021Applicant: UACJ CORPORATIONInventors: Mihoko KIKUCHI, Junji NUNOMURA
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Patent number: 10857629Abstract: An aluminum alloy brazing sheet is disclosed including a core material made of pure aluminum or aluminum alloy, one side or both sides of the core material, being clad with a brazing material, with an intermediate material interposed between the core material and the brazing material, the intermediate material including 0.4 to 6 mass % of Mg, further including at least one of Mn, Cr, and Zr, and the balance being Al and inevitable impurities, having the Mn content not more than 2.0 mass %, the Cr content not more than 0.3 mass %, and the Zr content not more than 0.3 mass %, with the total content of Mn, Cr, and Zr being at least 0.1 mass %, the brazing material including 4 to 13 mass % of Si, and the balance being Al and inevitable.Type: GrantFiled: August 24, 2017Date of Patent: December 8, 2020Assignee: UACJ CorporationInventors: Atsushi Fukumoto, Yasunaga Itoh, Shoichi Sakoda, Tomoki Yamayoshi
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Patent number: 10844506Abstract: An aluminum member comprises a base material made of aluminum or art aluminum alloy, and an anodized coating provided on a surface of the base material and having a thickness of 100 ?m or less. The anodized coating comprises a barrier layer formed on the surface of the base material and having a thickness of 10 to 150 nm, and a porous layer formed on the barrier layer and having a thickness of 6 ?m or more. The porous layer comprises a first pore extending in a thickness direction of the porous layer from a boundary between the porous layer and the barrier layer, and a second pore connected to the first pore and extending so as to branch radially in the thickness direction of the porous layer toward a surface of the porous layer.Type: GrantFiled: November 27, 2018Date of Patent: November 24, 2020Assignee: UACJ CorporationInventor: Junji Nunomura
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Patent number: 10836440Abstract: An instrument panel beam is the instrument panel beam that is arranged in the width direction of an automobile, and includes: a large-diameter hollow tube having a hollow cylindrical shape; and a small-diameter hollow tube which is joined to the large-diameter hollow tube in an axial direction, has a diameter that is smaller than that of the large-diameter hollow tube, and has a hollow cylindrical shape. The small-diameter hollow tube includes two flat plates that extend in a longitudinal direction and two bends that are curved in a circumferential direction, and the flat plates and the bends are alternately arranged in the circumferential direction.Type: GrantFiled: January 17, 2018Date of Patent: November 17, 2020Assignees: UACJ CORPORATION, UACJ EXTRUSION CORPORATIONInventors: Yutaro Konno, Akira Nishikawa, Yasuyuki Tanaka, Toshiaki Doi
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Patent number: 10807142Abstract: A hot blow forming method for the aluminum alloy sheet carries out a hot blow forming to an aluminum alloy sheet using a first metal mold being a female mold for forming having a protruding surface portion on an inside surface thereof and a second metal mold for gas introduction. Immediately prior to the hot blow forming, a temperature (T1) of the aluminum alloy sheet and a temperature (T2) of the first metal mold satisfy a relation (T1)-(T2)?30° C. and the temperature (T2) is equal to or higher than 400° C. In the hot blow forming, the aluminum alloy sheet is made to be brought into contact with at least a part of the protruding surface portion of the first metal mold within 30 seconds from a start of the gas introduction from the second metal mold.Type: GrantFiled: April 21, 2015Date of Patent: October 20, 2020Assignee: UACJ CORPORATIONInventor: Mineo Asano
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Publication number: 20200325354Abstract: The present invention provides a coating material that can improve gravure printing characteristics of the printing surface of a printing substrate to favorably transfer an ink fed in the cell of a gravure printing roll to the printing surface of the printing substrate, thereby achieving the beautiful gravure printing. The coating material of the present invention is a coating material for forming a surface layer, serving as a printing surface, on a printing substrate on which gravure printing is to be performed, and the coating material is characterized by including a vinyl chloride-vinyl acetate-unsaturated fatty acid copolymer that includes 80 to 90% by mass of a component of vinyl chloride, 9.2 to 19.5% by mass of a component of vinyl acetate, and 0.1 to 0.8% by mass of a component of an unsaturated fatty acid.Type: ApplicationFiled: March 24, 2017Publication date: October 15, 2020Applicant: UACJ CORPORATIONInventors: Hiroshi NISHIO, Osamu KATOH, Yukie KITADA
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Publication number: 20200306854Abstract: In a method for joining different type of metals, an Al-based base material (2) made of an Al alloy or pure Al and a Cu-based base material (3) made of a Cu alloy or pure Cu are joined to each other. The Al-based base material (2) and the Cu-based base material (3) are joined to each other by laser welding for melting and solidifying a portion irradiated with laser light using a filler metal (5) made of an Al alloy containing at least one of Si and Cu.Type: ApplicationFiled: July 18, 2018Publication date: October 1, 2020Applicant: UACJ CORPORATIONInventors: Shohei YOMOGIDA, Takeshi MURASE, Toshihiko FUKUDA
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Patent number: 10788275Abstract: An aluminum alloy clad material includes a core material, one side being clad with cladding material 1, the other side being clad with cladding material 2, the core material including an aluminum alloy that includes 0.5 to 1.8% of Mn, and limited to 0.05% or less of Cu, with the balance being Al and unavoidable impurities, the cladding material 1 including an aluminum alloy that includes 3 to 10% of Si, and 1 to 10% of Zn, with the balance being Al and unavoidable impurities, and the cladding material 2 including an aluminum alloy that includes 3 to 13% of Si, and limited to 0.05% or less of Cu, with the balance being Al and unavoidable impurities, wherein the Si content X (%) in the cladding material 1 and the Si content Y (%) in the cladding material 2 satisfy the value (Y?X) is ?1.5 to 9%.Type: GrantFiled: November 18, 2015Date of Patent: September 29, 2020Assignees: DENSO CORPORATION, UACJ CorporationInventors: Shusuke Otsuki, Shoei Teshima, Yuusuke Kitoh, Jun Abei, Tomohiro Shoji, Naoki Yamashita, Toshikazu Tanaka, Hirokazu Tanaka
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Patent number: 10767247Abstract: There are provided: an aluminum alloy magnetic disk substrate including: an aluminum alloy base material including an aluminum alloy containing 0.4 to 3.0 mass % (hereinafter, simply referred to as “%”) of Fe, 0.1 to 3.0% of Mn, 0.005 to 1.000% of Cu, and 0.005 to 1.000% of Zn, with the balance of Al and unavoidable impurities; and an electroless Ni—P plated layer formed on a surface of the aluminum alloy base material, in which the peak value (BLEI) of Fe emission intensity at an interface between the electroless Ni—P plated layer and the aluminum alloy base material, as determined by a glow discharge optical emission spectrometry device, is lower than Fe emission intensity (AlEI) in the interior of the aluminum alloy base material, as determined by the glow discharge optical emission spectrometry device; and a method for producing the aluminum alloy magnetic disk substrate.Type: GrantFiled: January 30, 2018Date of Patent: September 8, 2020Assignees: UACJ Corporation, Furukawa Electric Co., Ltd.Inventors: Takuya Murata, Kotaro Kitawaki, Makoto Yonemitsu, Naoki Kitamura, Takashi Nakayama, Hideyuki Hatakeyama, Ryo Sakamoto, Sadayuki Toda
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Patent number: 10755738Abstract: The present invention provides: an aluminum alloy substrate for magnetic discs with excellent plating surface smoothness; a manufacturing method therefor; and a magnetic disc using said aluminum alloy substrate for magnetic discs. The present invention is an aluminum alloy substrate for magnetic discs, a manufacturing method therefor, and a magnetic disc using said aluminum alloy substrate for magnetic discs, the aluminum alloy substrate being characterized in being obtained from an aluminum alloy containing Mg: 2.0-8.0 mass % (“%” below), Be: 0.00001-0.00200%, Cu: 0.003-0.150%, Zn: 0.05-0.60%, Cr: 0.010-0.300%, Si: 0.060% or less, Fe: 0.060% or less, the balance being obtained from Al and unavoidable impurities.Type: GrantFiled: May 23, 2016Date of Patent: August 25, 2020Assignees: UACJ Corporation, Furukawa Electric Co., Ltd.Inventors: Kotaro Kitawaki, Takuya Murata, Akira Hibino, Naoki Kitamura, Masanobu Onishi, Hideki Takahashi, Satoshi Yamazaki, Sadayuki Toda
