Patents Assigned to Aisin Takaoka Co., Ltd.
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Patent number: 8697253Abstract: The high-strength quenched formed body contains a layer, in which Zn is a major component and which is formed of Fe: 30% by mass or less, in an amount of 30 g/m2 or more on the surface of an after-quenching formed-body steel material, and accordingly is good in corrosion resistance. A quenched formed body is produced by quenching a zinc-plated steel material, which includes a zinc-plated layer which contains each of Al and Si having alloying-retarding function and readily-oxidizing function independently or compositely, in an amount of 0.15% by mass or more, after heating it to 800° C. or more and 950° C. or less in an oxidizing atmosphere of oxygen: 0.1% by volume or more.Type: GrantFiled: January 24, 2011Date of Patent: April 15, 2014Assignees: Aisin Takaoka Co., Ltd., Nippon Steel & Sumitomo Metal CorporationInventors: Shinichi Suzuki, Toshimasa Tomokiyo, Shuuji Souma, Katsuji Nakashima, Masashi Ozawa, Kiyohito Kondou
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Publication number: 20140015174Abstract: A cast-steel pouring apparatus is provided, cast-steel pouring apparatus which can contribute to shortening a casting time for casting molten steel of cast steel into a sprue of casting mold. A first axial line of a first pivot shaft is positioned on a more diametrically inner side than is a first imaginary extension line of an outer-circumference wall face in a furnace-body main body, and is positioned on a more diametrically outer side than is a second imaginary extension line of an inner-circumference wall face in a fire-retardant lining material that the furnace-body main body has.Type: ApplicationFiled: February 22, 2012Publication date: January 16, 2014Applicants: AISIN TAKAOKA CO., LTD., FUJIWA DENKI CO., LTD., SINTOKOGIO, LTD.Inventors: Takahiro Sato, Shinichi Cyomatsuken, Zhong-zhi Zhang, Toru Hanai, Hideto Terada, Masayuki Kato, Hidemi Hattori
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Publication number: 20140000833Abstract: Provided are a die change apparatus for use in a flaskless molding machine capable of mounting dies for producing a casting mold on die bases even when the dies have a great thickness, and a die carrying-in device used therein. The die carrying-in device comprises a first movable plate provided so as to be slidable along a die carrying-in direction toward a first die base, and a second movable plate placed so as to face the first movable plate in a standby position. A die drive source causes dies which have been positioned in a height direction to be detached from the movable plates, move toward the die bases, and be supported by clamping elements. An intersection drive source causes at least one of the first movable plate and the second movable plate to move in a direction to intersect the die carrying-in direction independently of the other.Type: ApplicationFiled: March 25, 2011Publication date: January 2, 2014Applicants: AISIN TAKAOKA ENGINEERING CO., LTD., AISIN TAKAOKA CO., LTD.Inventors: Keisuke Yabuhana, Syuichi Furukawa, Syozaburo Tsuzuki, Eiji Ito
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Patent number: 8540932Abstract: Ferritic spheroidal graphite cast iron includes: 3.1 to 3.5 percent by mass of carbon; 4.1 to 4.5 percent by mass of silicon; 0.8 percent by mass or below of manganese; 0.1 to 0.6 percent by mass of molybdenum; 0.1 to 1.0 percent by mass of chromium; 0.03 to 0.1 percent by mass of phosphorus; 0.03 percent by mass or below of sulfur; 0.02 to 0.15 percent by mass of magnesium; and iron.Type: GrantFiled: February 19, 2010Date of Patent: September 24, 2013Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Takaoka Co., Ltd.Inventors: Yoshikazu Genma, Go Kuramoto, Yoshihiro Hibino, Zhong-zhi Zhang, Takeyuki Sakuma
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Patent number: 8420009Abstract: It is an object to provide a gas cupola for melting a charging material efficiently by a combustion flame of a combustion burner. The gas cupola includes a furnace body having a melting chamber 10 and a molten metal discharge port 11 for discharging the molten metal and a plurality of combustion burners 4 forming a combustion flame 41. The combustion burner 4 melts the charging material 2 in the melting chamber 10 by ejecting the combustion flame 41 to the charging material 2 in the melting chamber 10. Each combustion burner 4 generates a hollow shaped melting portion 42 at the charging material 2 of the melting chamber 10 by the combustion flame 41 ejected from each combustion burner 4. In the cross sectional view of the furnace body 1 taken along a horizontal direction, the combustion burners 4 are arranged so that the adjacently positioned two hollow shaped melting portions 42 overlap with each other.Type: GrantFiled: May 19, 2009Date of Patent: April 16, 2013Assignee: Aisin Takaoka Co., Ltd.Inventors: Minoru Uozumi, Kaisei Tai
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Publication number: 20130022488Abstract: An iron (Fe)-based austenitic heat-resistant cast steel includes, based on a total of 100 mass % (indicated below simply as “%”): 0.4 to 0.8% of carbon (C), 3.0% or less of silicon (Si), 0.5 to 2.0% of manganese (Mn), 0.05% or less of phosphorus (P), 0.03 to 0.2% of sulfur (S), 18 to 23% of chromium (Cr), 3.0 to 8.0% of nickel (Ni) and 0.05 to 0.4% of nitrogen (N). A ratio of chromium (Cr) to carbon (C) is in a range of 22.5?Cr/C?57.5. The cast steel includes one or two or more of vanadium (V), molybdenum (Mo), tungsten (W) and niobium (Nb) in a total amount of less than 0.2%.Type: ApplicationFiled: April 5, 2011Publication date: January 24, 2013Applicants: AISIN TAKAOKA CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshikazu Genma, Go Kuramoto, Zhong-zhi Zhang
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Patent number: 8235089Abstract: The method casts a disk rotor which can restrain partial abrasion in a sliding ring part, particularly, in the circumferential outer surface. A mold includes a casting cavity to cast the sliding ring part, an outer circumference forming surface, an inner circumference forming surface, a gate group including a plurality of gates formed in the outer circumference forming surface at positions spaced apart from each other at predetermined intervals with respect to a circumferential direction, each of the gates having a central line P2 inclined at an angle greater than 0° and less than 90° with respect to a normal line passing through a center of the casting cavity in a radial direction, and runners. A melt is injected from the gates into the casting cavity at angles ?1, ?2 and ?3 which are greater than 0° and less than 90° with respect to the normal lines, and is solidified.Type: GrantFiled: July 14, 2008Date of Patent: August 7, 2012Assignee: Aisin Takaoka Co., Ltd.Inventor: Takeshi Kamasaka
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Patent number: 8142632Abstract: A method of manufacturing a fuel cell separator, the method including: subjecting the peripheral surfaces other than the respective gas passages of a pair of separator substrates formed from stainless steel to a cathodic electrolytic treatment within an alkali solution, thereby forming an iron-based hydrated oxide film on the peripheral surfaces of the pair of separator substrates (S200), conducting a water treatment by wetting the surface of the iron-based hydrated oxide film with water (S202), performing electrodeposition coating of an electrocoating material containing an aqueous resin onto at least one of the water-treated iron-based hydrated oxide films provided on the pair of separator substrates (S204), and baking the aqueous resin obtained by electrodeposition coating (S206).Type: GrantFiled: May 29, 2009Date of Patent: March 27, 2012Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Takaoka Co., Ltd.Inventors: Yusuke Watanabe, Masakazu Suzuki, Yoshinobu Kurosaki
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High-strength quenched formed body with good corrosion resistance and process for producing the same
Patent number: 8133544Abstract: A high-strength quenched formed body containing a layer on the surface of an after-quenching formed-body steel material in which layer Zn is a major component and which layer contains 30% by mass or less of Fe, and which layer is present in an amount of 30 g/m2 or more. A quenched formed body is produced by quenching a zinc-plated steel material which includes a zinc-plated layer containing each of Al and Si having alloying-retarding function and readily-oxidizing function independently or compositely, in an amount of 0.15% by mass or more, after heating it to 800° C. or more and 950° C. or less in an oxidizing atmosphere containing 0.1% by volume or more of oxygen.Type: GrantFiled: September 13, 2010Date of Patent: March 13, 2012Assignees: Aisin Takaoka Co., Ltd., Nippon Steel CorporationInventors: Shinichi Suzuki, Toshimasa Tomokiyo, Shuuji Souma, Katsuji Nakashima, Masashi Ozawa, Kiyohito Kondou -
Publication number: 20110303328Abstract: A high-strength quenched formed article has a zinc plating layer which is formed at a post-quenching formed steel sheet surface, and which contains 30 g/m2 or more of a phase that contains 5% or more by mass but 30% or less by mass of Fe, and which also contains 0.15% or more by mass but less than 2% by mass of at least one of Al and Si in a separate fashion or a composite fashion, and contains Zn, which makes up substantially a rest portion of the zinc plating layer, and an inevitable impurity, wherein the high-strength quenched formed article has a high-strength portion having a post-quenching-formation tensile strength of 1000 MPa or more, and a low-strength portion having a post-quenching-formation tensile strength of 800 MPa or less.Type: ApplicationFiled: February 1, 2010Publication date: December 15, 2011Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN TAKAOKA CO., LTD., NIPPON STEEL CORPORATIONInventors: Masaaki Kondo, Shinichi Suzuki, Toshimasa Tomokiyo, Koichi Nishizawa, Takayuki Suzuki, Yuki Ishiguro, Hideyuki Kai
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Publication number: 20110274542Abstract: A turbocharger includes: a turbine wheel that is driven by exhaust gas from an engine and supported rotatably by a predetermined rotary shaft; and a turbine housing that forms an exhaust gas passage that leads the exhaust gas to the turbine wheel, wherein the turbine housing includes a housing main body constituted by a plate-form member and a reinforcement member that forms the exhaust gas passage together with the housing main body and reinforces the housing main body, the reinforcement member includes a pair of annular portions having a substantially annular shape and provided about an axial center of the rotary shaft at an interval in an axial direction of the rotary shaft, and a connecting portion that connects the pair of annular portions, and the pair of annular portions and the connecting portion are molded integrally by implementing deformation processing on the plate-form member.Type: ApplicationFiled: January 14, 2010Publication date: November 10, 2011Applicants: AISIN TAKAOKA CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hirofumi Inoshita, Koichi Mine, Tomoyuki Isogai, Tatsuo Iida, Akira Sato, Takuya Kajita, Hideki Yoshikane
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Publication number: 20110250363Abstract: The invention relates to an oil type lubricant, which is applied to a die to be used in high-pressure die casting, gravity die casting, low-pressure die casting and forging and can prevent soldering, particularly at high temperature parts and under a heavy load, to a spray method of applying the oil type lubricant and a spray apparatus for applying the oil type lubricant. The powder-containing oil type lubricant for die contains 60 to 99% by mass of an oil type lubricant consisting of oil, 0.3 to 30% by mass of a solubilizing agent, 0.3 to 15% by mass of an inorganic powder and 7.5% by mass or less of water, the lubricant being electrostatically applied to a die. The electrostatic spray method includes applying the powder-containing oil type lubricant to a die by electrostatic spraying. The electrostatic spray apparatus includes a static electricity imparting device that imparts static electricity to the powder-containing oil type lubricant and an electrostatic spray gun installed on a multi-axle robot.Type: ApplicationFiled: September 25, 2009Publication date: October 13, 2011Applicants: AOKI SCIENCE INSTITUTE CO., LTD., AISIN TAKAOKA CO., LTD., TOYOTA MOTOR CORPORATIONInventors: Hiroaki Komatsubara, Masanao Kobayashi, Toshiaki Shimizu, Daisuke Serino, Munenori Sugisawa, Tomiyuki Murayama, Noriaki Osawa, Tomohiro Yamaguchi, Ryujiro Aoki, Tatsuya Hattori
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Publication number: 20110232274Abstract: In an exhaust gas-cooling pipe element provided between an exhaust port of an internal combustion engine and an exhaust branch pipe, a center axis of an exhaust introduction opening that is connected to the exhaust port and a center axis of an exhaust discharge opening that is connected to the exhaust branch pipe are placed out of alignment with each other.Type: ApplicationFiled: March 22, 2011Publication date: September 29, 2011Applicants: Toyota Jidosha Kabushiki Kaisha, Aisin Takaoka Co., Ltd.Inventors: Tsukasa Nagayama, Hitoshi Uda, Junji Watanabe, Akihiro Hosono
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Patent number: 8001821Abstract: A thermoforming press for forming and hardening metal sheets includes an upper die and a lower die. At least one of the upper and lower dies has a mold jaw and a support jaw which are movable relative to one another between a first position in which the support jaw rests against the mold jaw to block a flow of coolant between the mold jaw and the support jaw, and a second position in which the support jaw is spaced from the mold jaw by a distance to define a cooling gap for coolant to flow between the mold jaw and the support jaw.Type: GrantFiled: November 19, 2008Date of Patent: August 23, 2011Assignees: Benteler Automobiltechnik GmbH, Aisin Takaoka Co. Ltd.Inventors: Kiyohito Kondo, Martin Pohl, Robert Stockter
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Publication number: 20110132897Abstract: A heating device and a heating method which is able to quickly and accurately partition each region of a material to be heated and heat up each of the region to a required temperature, and a shape and required temperature of each region is different from each other. A heating device for heating a material to be heated by applying an electromagnetic wave to the material, wherein a plate member(s) which shields, absorbs and/or reflects the irradiated electromagnetic radiation and has a predetermined pattern contour can be placed, at least partially, close to the material to be heated.Type: ApplicationFiled: August 7, 2009Publication date: June 9, 2011Applicant: AISIN TAKAOKA CO., LTD.Inventors: Katsunori Ishiguro, Masaki Furuhashi, Martin Pohl, Kiyohito Kondo
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HIGH-STRENGTH QUENCHED FORMED BODY WITH GOOD CORROSION RESISTANCE AND PROCESS FOR PRODUCING THE SAME
Publication number: 20110117382Abstract: In zinc-system-plated steel materials, a high-strength quenched formed body, in which the corrosion resistance of after-quenching formed products is equal to or more than that of cold-molded products, and a production process for the same are provided. The high-strength quenched formed body contains a layer, in which Zn is a major component and which is formed of Fe: 30% by mass or less, in an amount of 30 g/m2 or more on the surface of an after-quenching formed-body steel material, and accordingly is good in corrosion resistance. A quenched formed body is produced by quenching a zinc-plated steel material, which includes a zinc-plated layer which contains each of Al and Si having alloying-retarding function and readily-oxidizing function independently or compositely, in an amount of 0.15% by mass or more, after heating it to 800° C. or more and 950° C. or less in an oxidizing atmosphere of oxygen: 0.1% by volume or more.Type: ApplicationFiled: January 24, 2011Publication date: May 19, 2011Applicant: AISIN TAKAOKA CO., LTD.Inventors: SHINICHI SUZUKI, TOSHIMASA TOMOKIYO, SHUUJI SOUMA, KATSUJI NAKASHIMA, MASASHI OZAWA, KIYOHITO KONDOU -
Publication number: 20110042369Abstract: Provided are a quick heating equipment that is small sized, has a simple structure, consumes less energy, and is easy repairable and replaceable, and a quick heating method. The heating equipment of a plate material to be heated has a contact-heating surface configured by arranging a plurality of heating elements on heat-insulating base plates at predetermined intervals, in a planar fashion and in a predetermined pattern and the contact-heating surface(s) is/are directly contacted with the plate material to be heated for heating thereof.Type: ApplicationFiled: October 22, 2008Publication date: February 24, 2011Applicants: AISIN TAKAOKA CO., LTD., BENTELER AUTOMOBILETECHNIK GMBHInventors: Katsunori Ishiguro, Martin Pohl, Kiyohito Kondo
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High-strength quenched formed body with good corrosion resistance and process for producing the same
Patent number: 7892605Abstract: A high-strength quenched formed body containing a layer on the surface of an after-quenching formed-body steel material in which layer Zn is a major component and which layer contains 30% by mass or less of Fe, and which layer is present in an amount of 30 g/m2 or more. A quenched formed body is produced by quenching a zinc-plated steel material which includes a zinc-plated layer containing each of Al and Si having alloying-retarding function and readily-oxidizing function independently or compositely, in an amount of 0.15% by mass or more, after heating it to 800° C. or more and 950° C. or less in an oxidizing atmosphere containing 0.1% by volume or more of oxygen.Type: GrantFiled: July 8, 2005Date of Patent: February 22, 2011Assignees: Aisin Takaoka Co., Ltd., Nippon Steel CorporationInventors: Shinichi Suzuki, Toshimasa Tomokiyo, Shuuji Souma, Katsuji Nakashima, Masashi Ozawa, Kiyohito Kondou -
HIGH-STRENGTH QUENCHED FORMED BODY WITH GOOD CORROSION RESISTANCE AND PROCESS FOR PRODUCING THE SAME
Publication number: 20100326570Abstract: A high-strength quenched formed body containing a layer on the surface of an after-quenching formed-body steel material in which layer Zn is a major component and which layer contains 30% by mass or less of Fe, and which layer is present in an amount of 30 g/m2 or more. A quenched formed body is produced by quenching a zinc-plated steel material which includes a zinc-plated layer containing each of Al and Si having alloying-retarding function and readily-oxidizing function independently or compositely, in an amount of 0.15% by mass or more, after heating it to 800° C. or more and 950° C. or less in an oxidizing atmosphere containing 0.1% by volume or more of oxygen.Type: ApplicationFiled: September 13, 2010Publication date: December 30, 2010Applicants: AISIN TAKAOKA CO., LTD., NIPPON STEEL CORPORATIONInventors: Shinichi Suzuki, Toshimasa Tomokiyo, Shuuji Souma, Katsuji Nakashima, Masashi Ozawa, Kiyohito Kondou -
Publication number: 20100319871Abstract: The method casts a disk rotor which can restrain partial abrasion in a sliding ring part, particularly, in the circumferential outer surface. A mold includes a casting cavity to cast the sliding ring part, an outer circumference forming surface, an inner circumference forming surface, a gate group including a plurality of gates formed in the outer circumference forming surface at positions spaced apart from each other at predetermined intervals with respect to a circumferential direction, each of the gates having a central line P2 inclined at an angle greater than 0° and less than 90° with respect to a normal line passing through a center of the casting cavity in a radial direction, and runners. A melt is injected from the gates into the casting cavity at angles ?1, ?2 and ?3 which are greater than 0° and less than 90° with respect to the normal lines, and is solidified.Type: ApplicationFiled: July 14, 2008Publication date: December 23, 2010Applicant: Aisin Takaoka Co., Ltd.Inventor: Takeshi Kamasaka