Patents by Inventor Shoei Teshima
Shoei Teshima 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).
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Patent number: 11002498Abstract: An aluminum alloy fin material for a heat exchanger in the present invention comprises an aluminum alloy having a composition containing Mn: 1.2 to 2.0%, Cu: 0.05 to 0.20%, Si: 0.5 to 1.30%, Fe: 0.05 to 0.5%, and Zn: 1.0 to 3.0% by mass and a remainder comprising Al and an unavoidable impurity, further containing one or two or more of Ti: 0.01 to 0.20%, Cr: 0.01 to 0.20% and Mg: 0.01 to 0.20% by mass as desired, and, after heating in brazing, has a tensile strength of 140 MPa or more, a proof stress of 50 MPa or more, an electrical conductivity of 42% IACS or more, an average grain diameter of 150 ?m or more and less than 700 ?m, and a potential of ?800 mV or more and ?720 mV or less.Type: GrantFiled: December 28, 2015Date of Patent: May 11, 2021Assignees: MITSUBISHI ALUMINUM CO., LTD., DENSO CORPORATIONInventors: Shigeki Nakanishi, Shohei Iwao, Masakazu Edo, Hayaki Teramoto, Manabu Hasegawa, Michiyasu Yamamoto, Shoei Teshima
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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: 10688601Abstract: Provided is an aluminum alloy clad material including an aluminum alloy core material, an intermediate layer material that is clad on one surface of the core material, and a first brazing filler metal that is clad on a surface of the intermediate layer material, the surface not being on the core material side, wherein the core material, the intermediate layer material, and the first brazing filler metal each include an aluminum alloy having a predetermined composition, the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter between 0.1 and 1.0 ?m inclusive in the intermediate layer material before brazing heating is at least 1.0×105 pieces/mm2, and the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter between 0.1 and 1.0 ?m inclusive in the intermediate layer material after brazing heating is at least 1.0×104 pieces/mm2. Further provided is a method for producing the aluminum alloy clad material.Type: GrantFiled: July 8, 2016Date of Patent: June 23, 2020Assignees: DENSO CORPORATION, UACJ CORPORATIONInventors: Taichi Asano, Masaki Harada, Shoei Teshima, Makoto Ando, Naoki Yamashita
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Patent number: 10625379Abstract: Provided is an aluminum alloy clad material including an aluminum alloy core material and a first brazing filler metal that is clad on one surface or both surfaces of the core material, wherein the core material and the first brazing filler metal each include an aluminum alloy having a predetermined composition, the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter of at least 0.1 ?m in the first brazing filler metal before brazing heating is at least 1.0×105 pieces/mm2, and the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter of at least 2 ?m in the first brazing filler metal after brazing heating is at least 300 pieces/mm2. Further provided are a method for producing the aluminum alloy clad material and a heat exchanger employing the aluminum alloy clad material.Type: GrantFiled: July 8, 2016Date of Patent: April 21, 2020Assignee: UACJ CorporationInventors: Taichi Asano, Masaki Harada, Shoei Teshima, Makoto Ando, Wataru Narita, Naoki Yamashita
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Patent number: 10369665Abstract: This brazed structure includes a brazing sheet that has been brazed and that comprises: a core material comprising an aluminum alloy which contains 0.3-1.0 mass %, excluding 0.3 mass %, Si, 0.6-2.0 mass %, excluding 0.6 mass %, Mn, 0.3-1.0 mass %, excluding 0.3 mass %, Cu, and 0.15-0.5 mass %, excluding 0.15 mass %, Mg, with the remainder comprising Al and unavoidable impurities, and has an average crystal grain diameter of 50 ?m or larger and in which an Mg—Si intermetallic compound and an Al—Mg—Si—Cu intermetallic compound account for 40% or less of the grain boundaries; and, clad to the core material, a brazing material comprising an Al—Si alloy.Type: GrantFiled: March 24, 2014Date of Patent: August 6, 2019Assignees: KOBE STEEL, LTD., DENSO CORPORATIONInventors: Takahiro Izumi, Shimpei Kimura, Yuji Shibuya, Shoei Teshima, Hayaki Teramoto, Osamu Hakamata
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Patent number: 10286496Abstract: A brazing sheet formed of an aluminum alloy and exhibiting excellent post-brazing strength, corrosion resistance and brazability with a thickness of less than 200 ?m is provided. The brazing sheet includes a core layer, a filler layer of an Al—Si based alloy on one side of the core layer, and a sacrificial layer on the other side of the core layer. The core layer includes more than 1.5 mass % and 2.5 mass % or less of Cu, 0.5 mass % to 2.0 mass % of Mn, Al, and inevitable impurities. The sacrificial layer includes 2.0 mass % to 7.0 mass % of Zn, more than 0.10 mass % and 3.0 mass % or less of Mg, Al, and inevitable impurities. The filler layer and the sacrificial layer each have a thickness of 15 ?m to 50 ?m. A total clad rate of the filler layer and the sacrificial layer is equal to or less than 50%.Type: GrantFiled: February 9, 2015Date of Patent: May 14, 2019Assignees: Kobe Steel, Ltd., DENSO CORPORATIONInventors: Shimpei Kimura, Akihiro Tsuruno, Takahiro Izumi, Yuji Shibuya, Hayaki Teramoto, Shoei Teshima, Manabu Hasegawa, Michiyasu Yamamoto
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Patent number: 10094629Abstract: An aluminum alloy clad material includes a core material, an inner cladding material, and a sacrificial anode material, one side of the core material being clad with the inner cladding material, the other side of the core material being clad with the sacrificial anode material, the core material being formed of an Al—Mn alloy that includes 0.6 to 2.0 mass % of Mn and 0.4 mass % or less of Cu, with the balance being aluminum and unavoidable impurities, the inner cladding material being formed of an Al—Mn—Cu alloy that includes 0.6 to 2.0 mass % of Mn and 0.2 to 1.5 mass % of Cu, with the balance being aluminum and unavoidable impurities, and the sacrificial anode material being formed of an Al—Zn alloy that includes 0.5 to 10.0 mass % of Zn, with the balance being aluminum and unavoidable impurities.Type: GrantFiled: November 12, 2013Date of Patent: October 9, 2018Assignees: DENSO CORPORATION, UACJ CORPORATIONInventors: Shusuke Otsuki, Shoei Teshima, Kouichi Nakashita, Kouta Hagihara, Toshikazu Tanaka, Ryoko Fujimura, Naoki Yamashita, Hirokazu Tanaka
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Publication number: 20180200843Abstract: The present invention provides an aluminum alloy brazing sheet which maintains high corrosion resistance after brazing treatment and has good brazeability, a method for producing the same, and a heat exchanger.Type: ApplicationFiled: June 16, 2016Publication date: July 19, 2018Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Katsuhiro MATSUKADO, Akihiro TSURUNO, Shogo YAMADA, Shoei TESHIMA, Tooru IKEDA, Kouki NISHIYAMA
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Publication number: 20180193961Abstract: Provided is an aluminum alloy clad material including an aluminum alloy core material and a first brazing filler metal that is clad on one surface or both surfaces of the core material, wherein the core material and the first brazing filler metal each include an aluminum alloy having a predetermined composition, the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter of at least 0.1 ?m in the first brazing filler metal before brazing heating is at least 1.0×105 pieces/mm2, and the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter of at least 2 ?m in the first brazing filler metal after brazing heating is at least 300 pieces/mm2. Further provided are a method for producing the aluminum alloy clad material and a heat exchanger employing the aluminum alloy clad material.Type: ApplicationFiled: July 8, 2016Publication date: July 12, 2018Inventors: Taichi Asano, Masaki Harada, Shoei Teshima, Makoto Ando, Wataru Narita, Naoki Yamashita
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Publication number: 20180193960Abstract: Provided is an aluminum alloy clad material including an aluminum alloy core material, an intermediate layer material that is clad on one surface of the core material, and a first brazing filler metal that is clad on a surface of the intermediate layer material, the surface not being on the core material side, wherein the core material, the intermediate layer material, and the first brazing filler metal each include an aluminum alloy having a predetermined composition, the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter between 0.1 and 1.0 ?m inclusive in the intermediate layer material before brazing heating is at least 1.0×105 pieces/mm2, and the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter between 0.1 and 1.0 ?m inclusive in the intermediate layer material after brazing heating is at least 1.0×104 pieces/mm2. Further provided is a method for producing the aluminum alloy clad material.Type: ApplicationFiled: July 8, 2016Publication date: July 12, 2018Inventors: Taichi Asano, Masaki Harada, Shoei Teshima, Makoto Ando, Naoki Yamashita
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Publication number: 20170321974Abstract: 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: ApplicationFiled: November 18, 2015Publication date: November 9, 2017Applicants: DENSO CORPORATION, UACJ CorporationInventors: Shusuke Otsuki, Shoei Teshima, Yuusuke Kitoh, Jun Abei, Tomohiko Shoji, Naoki Yamashita, Toshikazu Tanaka, Hirokazu Tanaka
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Manufacturing method of heat exchanger, and heat exchanger manufactured by such manufacturing method
Patent number: 9789564Abstract: The disclosed method relates to manufacturing a heat exchanger which causes no brazing defects, and a heat exchanger manufactured by the method. The method relates to manufacturing a heat exchanger having an aluminum alloy tube defining a cooling-medium flowing passage and a copper alloy tube defining a water flowing passage, wherein a heat exchange is carried out between a cooling medium flowing through the cooling-medium flowing passage and water flowing through the water flowing passage. The aluminum alloy tube and the copper alloy tube are brazed to each other at a temperature of less than 548° C.Type: GrantFiled: December 14, 2012Date of Patent: October 17, 2017Assignees: UACJ CORPORATION, DENSO CORPORATIONInventors: Akira Yanagida, Shoei Teshima, Takeshi Iguchi, Masakazu Morimoto, Kotaro Kitawaki, Kazuyoshi Nakashima, Takashi Murase -
Publication number: 20170232561Abstract: Disclosed is an aluminum alloy brazing sheet including a core material, a brazing filler material provided on one surface of the core material and formed of an Al—Si based alloy, and a sacrificial anode material provided on the other surface of the core material, the brazing sheet having a thickness of less than 200 ?m, wherein the core material includes more than 1.5% by mass and 2.5% or less by mass of Cu, and 0.5 to 2.0% by mass of Mn, with the balance being Al and inevitable impurities, wherein the sacrificial anode material includes 2.0 to 10.0% by mass of Zn, an Mg content in the sacrificial anode material being restricted to 0.10% or less by mass, with the balance being Al and inevitable impurities, and wherein each of the brazing filler material and the sacrificial anode material has a thickness thereof in a range of 15 to 50 ?m, and the total of cladding rates of the brazing filler material and sacrificial anode material is 50% or less.Type: ApplicationFiled: September 28, 2015Publication date: August 17, 2017Applicants: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.), DENSO CORPORATIONInventors: Shimpei KIMURA, Akihiro TSURUNO, Takahiro IZUMI, Yuji SHIBUYA, Hayaki TERAMOTO, Michiyasu YAMAMOTO, Manabu HASEGAWA, Shoei TESHIMA
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Publication number: 20170173740Abstract: The present invention provides a brazing sheet formed of an aluminum alloy which exhibits excellent post-brazing strength, corrosion resistance and brazability even though its thickness is less than 200 ?m. Disclosed is a brazing sheet formed of an aluminum alloy including a core layer, a brazing filler layer provided on one side of the core layer and formed of an Al—Si based alloy, and a sacrificial layer provided on the other side of the core layer, the brazing sheet having a thickness of less than 200 ?m, wherein the core layer includes Cu: more than 1.5% by mass and 2.5% or less by mass and Mn: 0.5 to 2.0% by mass, with the balance being Al and inevitable impurities, the sacrificial layer includes Zn: 2.0 to 7.0% by mass and Mg: more than 0.10% by mass and 3.Type: ApplicationFiled: February 9, 2015Publication date: June 22, 2017Applicants: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.), DENSO CORPORATIONInventors: Shimpei KIMURA, Akihiro TSURUNO, Takahiro IZUMI, Yuji SHIBUYA, Hayaki TERAMOTO, Shoei TESHIMA, Manabu HASEGAWA, Michiyasu YAMAMOTO
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Publication number: 20160290743Abstract: An aluminum alloy clad material produces a heat exchanger tube that exhibits excellent outer-side corrosion resistance when formed into a tube. The aluminum alloy clad material includes a core material, an inner cladding material, and a sacrificial anode material, one side of the core material being clad with the inner cladding material, the other side of the core material being clad with the sacrificial anode material, the core material being formed of an Al—Mn alloy that includes 0.6 to 2.0 mass % of Mn and 0.4 mass % or less of Cu, with the balance being aluminum and unavoidable impurities, the inner cladding material being formed of an Al—Mn—Cu alloy that includes 0.6 to 2.0 mass % of Mn and 0.2 to 1.5 mass % of Cu, with the balance being aluminum and unavoidable impurities, and the sacrificial anode material being formed of an Al—Zn alloy that includes 0.5 to 10.0 mass % of Zn, with the balance being aluminum and unavoidable impurities.Type: ApplicationFiled: November 12, 2013Publication date: October 6, 2016Inventors: Shusuke OTSUKI, Shoei TESHIMA, Kouichi NAKASHITA, Kouta HAGIHARA, Toshikazu TANAKA, Ryoko FUJIMURA, Naoki YAMASHITA, Hirokazu TANAKA
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Publication number: 20160187079Abstract: An aluminum alloy fin material for a heat exchanger in the present invention comprises an aluminum alloy having a composition containing Mn: 1.2 to 2.0%, Cu: 0.05 to 0.20%, Si: 0.5 to 1.30%, Fe: 0.05 to 0.5%, and Zn: 1.0 to 3.0% by mass and a remainder comprising Al and an unavoidable impurity, further containing one or two or more of Ti: 0.01 to 0.20%, Cr: 0.01 to 0.20% and Mg: 0.01 to 0.20% by mass as desired, and, after heating in brazing, has a tensile strength of 140 MPa or more, a proof stress of 50 MPa or more, an electrical conductivity of 42% IACS or more, an average grain diameter of 150 ?m or more and less than 700 ?m, and a potential of ?800 mV or more and ?720 mV or less.Type: ApplicationFiled: December 28, 2015Publication date: June 30, 2016Applicants: MITSUBISHI ALUMINUM CO., LTD., DENSO CORPORATIONInventors: Shigeki NAKANISHI, Shohei IWAO, Masakazu EDO, Hayaki TERAMOTO, Manabu HASEGAWA, Michiyasu YAMAMOTO, Shoei TESHIMA
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Publication number: 20160031045Abstract: This brazed structure includes a brazing sheet that has been brazed and that comprises: a core material comprising an aluminum alloy which contains 0.3-1.0 mass %, excluding 0.3 mass %, Si, 0.6-2.0 mass %, excluding 0.6 mass %, Mn, 0.3-1.0 mass %, excluding 0.3 mass %, Cu, and 0.15-0.5 mass %, excluding 0.15 mass %, Mg, with the remainder comprising Al and unavoidable impurities, and has an average crystal grain diameter of 50 ?m or larger and in which an Mg—Si intermetallic compound and an Al—Mg—Si—Cu intermetallic compound account for 40% or less of the grain boundaries; and, clad to the core material, a brazing material comprising an Al—Si alloy.Type: ApplicationFiled: March 24, 2014Publication date: February 4, 2016Applicants: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD,), DENSO CORPORATIONInventors: Takahiro IZUMI, Shimpei KIMURA, Yuji SHIBUYA, Shoei TESHIMA, Hayaki TERAMOTO, Osamu HAKAMATA
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Manufacturing Method Of Heat Exchanger, And Heat Exchanger Manufactured By Such Manufacturing Method
Publication number: 20130199763Abstract: The disclosed method relates to manufacturing a heat exchanger which causes no brazing defects, and a heat exchanger manufactured by the method. The method relates to manufacturing a heat exchanger having an aluminum alloy tube defining a cooling-medium flowing passage and a copper alloy tube defining a water flowing passage, wherein a heat exchange is carried out between a cooling medium flowing through the cooling-medium flowing passage and water flowing through the water flowing passage. The aluminum alloy tube and the copper alloy tube are brazed to each other at a temperature of less than 548° C.Type: ApplicationFiled: December 14, 2012Publication date: August 8, 2013Applicants: FURUKAWA-SKYALUMINUM CORP, DENSO CORPORATIONInventors: Akira YANAGIDA, Shoei TESHIMA, Takeshi IGUCHI, Masakazu MORIMOTO, Kotaro KITAWAKI, Kazuyoshi NAKASHIMA, Takashi MURASE -
Patent number: 8075706Abstract: A paste composition for aluminum brazing of the invention contains 40 to 65% by weight of a metal powder for brazing (a), 5 to 35% by weight of a fluoride type flux (b), 1 to 10% by weight of a methacrylic acid ester type polymer (c), and 10 to 40% by weight of an organic solvent (d); and the component (d) is a hydrocarbon type organic solvent having no aromatic ring and no hydroxyl group and the composition is in a paste-like state having a viscosity of 6,000 to 200,000 mPa·s at 23° C. and accordingly, the storage stability and applicability (practically, discharge property and pressure stability by using a dispenser) and brazing property can be improved in good balance.Type: GrantFiled: December 19, 2008Date of Patent: December 13, 2011Assignees: Harima Chemicals, Inc., Denso CorporationInventors: Tomoaki Akazawa, Masaki Teruse, Ichiro Taninaka, Shoei Teshima, Kinya Yamamoto, Akira Itoh, Ken Muto
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Publication number: 20100206533Abstract: A heat exchanger includes a plurality of tubes in which a thermal fluid flows, and a tank located at one longitudinal end portion of each tube and is brazed to the longitudinal end portions of the tubes to communicate with the tubes. The tank and the tube are respectively made of clad material plates in each of which a brazing material is clad on at least one surface of a core material. The brazing material of the tank and the brazing material of the tube respectively include Si content. Furthermore, a rate of the Si content in the brazing material of the tank is lower than that in the brazing material of the tube, and is in a range larger than 0% and equal to or smaller than 6%. Thus, meltage of the tube due to molten brazing material can be reduced during brazing of the tube and the tank.Type: ApplicationFiled: January 19, 2010Publication date: August 19, 2010Applicant: DENSO CORPORATIONInventors: Tetsuya Sakakibara, Shoei Teshima