Patents Assigned to Daihatsu Motor Co., Ltd.
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Patent number: 11590561Abstract: A method for producing a sand mold includes mixing artificial sand with a furan resin composition including a furan resin precursor, preparing molding sand having the artificial sand and a surface-modified layer containing a resin cured product covering the artificial sand and including a curing agent attached to the surface-modified layer by mixing the curing agent including xylene sulfonic acid with the artificial sand with which the furan resin composition is mixed, and curing the furan resin composition, after mixing the artificial sand with the furan resin composition, and curing an added portion of the binder in the molding sand by adding the binder to the molding sand. In the step of curing the added portion of the binder, the curing agent for curing the furan resin composition is used also as a curing agent for curing the binder.Type: GrantFiled: June 15, 2021Date of Patent: February 28, 2023Assignee: DAIHATSU MOTOR CO., LTD.Inventors: Takanobu Kawakami, Katsushi Morita, Akio Yamakawa, Kazuki Takada
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Patent number: 11173484Abstract: Provided are an anion exchange resin being capable of producing an electrolyte membrane, a binder for forming an electrode catalyst layer and a battery electrode catalyst layer, which have improved electrical properties and chemical properties. For example, used is an anion exchange resin which has a hydrophobic unit being composed of bisphenol AF residues repeated via carbon-carbon bond and a hydrophilic unit being composed of hydrophilic groups repeated via carbon-carbon bond, in which the hydrophilic group is formed by connecting an anion exchange group to a fluorene backbone via a divalent saturated hydrocarbon group, and in which the hydrophobic unit and the hydrophilic unit are connected via carbon-carbon bond.Type: GrantFiled: November 20, 2019Date of Patent: November 16, 2021Assignees: University Of Yamanashi, Takahata Precision Co., Ltd., DAIHATSU MOTOR CO., LTDInventors: Kenji Miyatake, Junpei Miyake, Taro Kimura, Naoki Yokota, Katsuya Nagase, Yousuke Konno, Koichiro Asazawa, Aoi Takano, Takeshi Kato
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Patent number: 11154852Abstract: Provided are an anion exchange resin being capable of producing an electrolyte membrane and the like, which have improved chemical properties (durability). For example, used is an anion exchange resin comprising a hydrophobic unit being composed of a plurality of divalent hydrophobic groups repeated via carbon-carbon bond, the divalent hydrophobic group having a plurality of aromatic rings which are connected to each other via a divalent fluorine-containing group; and a hydrophilic unit being composed of a plurality of hydrophilic groups repeated via carbon-carbon bond, the hydrophilic groups being composed of a plurality of aromatic rings which are connected to each other via a divalent hydrocarbon group and/or carbon-carbon bond, and the hydrophilic groups containing an anion exchange group-containing group including a quaternary ammonium salt having a piperidine ring, and wherein the hydrophobic unit and the hydrophilic unit are connected via carbon-carbon bond.Type: GrantFiled: August 21, 2019Date of Patent: October 26, 2021Assignees: UNIVERSITY OF YAMANASHI, TAKAHATA PRECISION CO., LTD., DAIHATSU MOTOR CO., LTDInventors: Kenji Miyatake, Junpei Miyake, Naoki Yokota, Katsuya Nagase, Aoi Takano, Takeshi Kato, Koichiro Asazawa
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Publication number: 20210316356Abstract: A method for producing a sand mold includes mixing artificial sand with a furan resin composition including a furan resin precursor, preparing molding sand having the artificial sand and a surface-modified layer containing a resin cured product covering the artificial sand and including a curing agent attached to the surface-modified layer by mixing the curing agent including xylene sulfonic acid with the artificial sand with which the furan resin composition is mixed, and curing the furan resin composition, after mixing the artificial sand with the furan resin composition, and curing an added portion of the binder in the molding sand by adding the binder to the molding sand. In the step of curing the added portion of the binder, the curing agent for curing the furan resin composition is used also as a curing agent for curing the binder.Type: ApplicationFiled: June 15, 2021Publication date: October 14, 2021Applicant: DAIHATSU MOTOR CO., LTD.Inventors: Takanobu KAWAKAMI, Katsushi MORITA, Akio YAMAKAWA, Kazuki TAKADA
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Patent number: 10828866Abstract: Provided are a decorative sheet which has excellent processability and with which an increase in workability during mounting can be achieved, a formed sheet obtained by forming the decorative sheet, and a formed sheet manufacturing method. The decorative sheet 1 is provided with a release layer 2, a pressure-sensitive adhesive layer 3 disposed on a surface of the release layer 2, and a skin layer 4 disposed on a surface of the pressure-sensitive adhesive layer 3. The release layer 2 includes a shape retention layer 5 and an easy release layer 6 interposed between the pressure-sensitive adhesive layer 3 and the shape retention layer 5. The shape retention layer 5 is a resin sheet made from an acrylonitrile-butadiene-styrene copolymer. The shape retention layer 5 has a thickness of not less than 100 ?m and not more than 700 ?m.Type: GrantFiled: December 17, 2015Date of Patent: November 10, 2020Assignees: DAIHATSU MOTOR CO., LTD., KYOWA LEATHER CLOTH CO.,LTD.Inventors: Jun Nagata, Akira Sakabe, Kazuyoshi Baba, Tadahiko Inagaki, Haruyuki Ishizu, Keiko Nakada
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Patent number: 10744700Abstract: A decorative sheet includes a releasing layer, a pressure-sensitive adhesive layer disposed on a surface of the releasing layer, and a skin layer disposed on a surface of the pressure-sensitive adhesive layer. The releasing layer includes a shape-holding layer, both the shrinkage ratio of the shape-holding layer and the shrinkage ratio of the skin layer are 0/1000 to 9/1000, and both the softening start temperature of the shape-holding layer and the softening start temperature of the skin layer are 60° C. or more and 120° C. or less.Type: GrantFiled: December 9, 2015Date of Patent: August 18, 2020Assignee: DAIHATSU MOTOR CO., LTD.Inventors: Jun Nagata, Akira Sakabe, Kazuyoshi Baba
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Publication number: 20200188989Abstract: A method for producing molding sand includes mixing an artificial sand with a furan resin composition including a furan resin precursor, and mixing a curing agent with the artificial sand with which the furan resin composition is mixed, wherein the curing agent includes xylene sulfonic acid.Type: ApplicationFiled: February 27, 2018Publication date: June 18, 2020Applicant: DAIHATSU MOTOR CO., LTD.Inventors: Takanobu KAWAKAMI, Katsushi MORITA, Akio YAMAKAWA, Kazuki TAKADA
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Publication number: 20200061599Abstract: Provided are an anion exchange resin being capable of producing an electrolyte membrane and the like, which have improved chemical properties (durability). For example, used is an anion exchange resin comprising a hydrophobic unit being composed of a plurality of divalent hydrophobic groups repeated via carbon-carbon bond, the divalent hydrophobic group having a plurality of aromatic rings which are connected to each other via a divalent fluorine-containing group; and a hydrophilic unit being composed of a plurality of hydrophilic groups repeated via carbon-carbon bond, the hydrophilic groups being composed of a plurality of aromatic rings which are connected to each other via a divalent hydrocarbon group and/or carbon-carbon bond, and the hydrophilic groups containing an anion exchange group-containing group including a quaternary ammonium salt having a piperidine ring, and wherein the hydrophobic unit and the hydrophilic unit are connected via carbon-carbon bond.Type: ApplicationFiled: August 21, 2019Publication date: February 27, 2020Applicants: University Of Yamanashi, Takahata Precision Co., Ltd., Daihatsu Motor Co., Ltd.Inventors: Kenji MIYATAKE, Junpei Miyake, Naoki Yokota, Katsuya Nagase, Aoi Takano, Takeshi Kato, Koichiro Asazawa
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Publication number: 20200017154Abstract: Manufacturing costs of a resin back door are reduced. After an adhesive is applied to an inner panel, the inner panel and outer panels are placed on top of each other, and relative positions between the outer panel and the inner panel are held by pressing an upper surface portion (first area) of the outer panel in a vehicle body vertical direction by using pressing members (first jigs) and pressing a spoiler (second area) of the outer panel in a vehicle body front-back direction by using pressing members (second jigs). Thereafter, the second jigs are removed from the outer panel, and the inner panel and the outer panel are heated while the upper surface portion of the outer panel is being pressed by the first jigs, thereby curing the adhesive.Type: ApplicationFiled: March 15, 2018Publication date: January 16, 2020Applicant: DAIHATSU MOTOR CO., LTD.Inventors: Naoya IKEDA, Manabu YAMADA
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Publication number: 20200009948Abstract: Takt time to manufacture a panel component by bonding an inner panel made from resin and an outer panel made from resin is shortened. A method for manufacturing a resin panel component of a vehicle body includes the steps of: applying an adhesive to an inner panel; placing the inner panel and outer panels on top of each other and holding bonding areas of the inner panel and the outer panels while the holding bonding areas are being pressed by jigs only on a side of the outer panels without being supported on the inner panel side; and curing the adhesive interposed between the inner panel and the outer panels.Type: ApplicationFiled: March 15, 2018Publication date: January 9, 2020Applicant: DAIHATSU MOTOR CO., LTD.Inventors: Naoya IKEDA, Manabu YAMADA
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Patent number: 10283692Abstract: A power generation system includes: a heat source having a temperature being changed over time; a flow passage through which a heat medium heated by the heat source passes; a power generation device including a power generation element and a first electrode, the power generation element being electrically polarized by temperature change thereof depending on temperature change of the heat medium, the first electrode extracting electric power from the power generation element; a temperature detection device being disposed on an upstream side relative to the power generation device in the flow passage and detecting the temperature of the heat medium; a voltage application device that applies voltage to the power generation element; and a control device that activates the voltage application device when the temperature increase of the heat medium has been detected and deactivates the voltage application unit when the temperature decrease of the heat medium has been detected.Type: GrantFiled: November 20, 2014Date of Patent: May 7, 2019Assignees: DAIHATSU MOTOR CO., LTD., NATIONAL UNIVERSITY CORPORATION NAGAOKA OF TECHNOLOGYInventors: Satoru Yamanaka, Yoonho Kim, Takashi Ogawa, Akira Nakajima, Juyoung Kim, Hirohisa Tanaka, Tadachika Nakayama, Masatoshi Takeda, Noboru Yamada, Koichi Niihara
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Patent number: 9979325Abstract: A power-generating system includes a heat source which is able to produce temporal temperature variation; a first device which is able to produce temporal temperature variation based on the temperature change of the heat source and in which polarization occurs; a second device for taking out a net generating power from the first device; a temperature sensor that detects the temperature of the first device; a voltage application device that applies a voltage to the first device; and a control unit for activating the voltage application device on detecting an increase in temperature of the first device and for stopping the voltage application device on detecting a decrease in temperature of the first device by the temperature sensor.Type: GrantFiled: June 28, 2013Date of Patent: May 22, 2018Assignees: DAIHATSU MOTOR CO., LTD., National University Corporation Nagaoka University of TechnologyInventors: Yoonho Kim, Satoru Yamanaka, Juyoung Kim, Hirohisa Tanaka, Tadachika Nakayama, Masatoshi Takeda, Noboru Yamada, Koichi Niihara
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Publication number: 20180104886Abstract: A decorative sheet includes a releasing layer, a pressure-sensitive adhesive layer disposed on a surface of the releasing layer, and a skin layer disposed on a surface of the pressure-sensitive adhesive layer. The releasing layer includes a shape-holding layer, both the shrinkage ratio of the shape-holding layer and the shrinkage ratio of the skin layer are 0/1000 to 9/1000, and both the softening start temperature of the shape-holding layer and the softening start temperature of the skin layer are 60° C. or more and 120° C. or less.Type: ApplicationFiled: December 9, 2015Publication date: April 19, 2018Applicant: DAIHATSU MOTOR CO., LTD.Inventors: Jun NAGATA, Akira SAKABE, Kazuyoshi BABA
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Publication number: 20180093450Abstract: Provided are a decorative sheet which has excellent processability and with which an increase in workability during mounting can be achieved, a formed sheet obtained by forming the decorative sheet, and a formed sheet manufacturing method. The decorative sheet 1 is provided with a release layer 2, a pressure-sensitive adhesive layer 3 disposed on a surface of the release layer 2, and a skin layer 4 disposed on a surface of the pressure-sensitive adhesive layer 3. The release layer 2 includes a shape retention layer 5 and an easy release layer 6 interposed between the pressure-sensitive adhesive layer 3 and the shape retention layer 5. The shape retention layer 5 is a resin sheet made from an acrylonitrile-butadiene-styrene copolymer. The shape retention layer 5 has a thickness of not less than 100 ?m and not more than 700 ?m.Type: ApplicationFiled: December 17, 2015Publication date: April 5, 2018Applicant: DAIHATSU MOTOR CO., LTD.Inventors: Jun NAGATA, Akira SAKABE, Kazuyoshi BABA, Tadahiko INAGAKI, Haruyuki ISHIZU, Keiko NAKADA
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Publication number: 20160284964Abstract: A power generation system includes: a heat source having a temperature being changed over time; a flow passage through which a heat medium heated by the heat source passes; a power generation device including a power generation element and a first electrode, the power generation element being electrically polarized by temperature change thereof depending on temperature change of the heat medium, the first electrode extracting electric power from the power generation element; a temperature detection device being disposed on an upstream side relative to the power generation device in the flow passage and detecting the temperature of the heat medium; a voltage application device that applies voltage to the power generation element; and a control device that activates the voltage application device when the temperature increase of the heat medium has been detected and deactivates the voltage application unit when the temperature decrease of the heat medium has been detected.Type: ApplicationFiled: November 20, 2014Publication date: September 29, 2016Applicants: DAIHATSU MOTOR CO., LTD., NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGYInventors: Satoru YAMANAKA, Yoonho KIM, Takashi OGAWA, Akira NAKAJIMA, Juyoung KIM, Hirohisa TANAKA, Tadachika NAKAYAMA, Masatoshi TAKEDA, Noboru YAMADA, Koichi NIIHARA
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Publication number: 20160225973Abstract: Provided are a power generation element including a power generation material indicated by the following general formula (1), and a power generation system using the power generation element: (AxB1-x)NbO3 (1), where A and B are mutually different and represent at least one element selected from rare-earth elements, alkaline-earth metals, alkaline metals, Cd, and Bi, and x represents an atomic proportion in a numerical range of 0<x?1. The configuration provides a power generation material that enables sufficient power generation performance even in a high temperature range, a power generation element including the power generation material, and a power generation system using the power generation element.Type: ApplicationFiled: September 9, 2014Publication date: August 4, 2016Applicants: DAIHATSU MOTOR CO., LTD., NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGYInventors: Juyoung KIM, Yoonho KIM, Takashi Ogawa, Satoru YAMANAKA, Akira NAKAJIMA, Hirohisa TANAKA, Tadachika NAKAYAMA, Masatoshi TAKEDA, Noboru YAMADA, Koichi NIIHARA
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Patent number: 9379402Abstract: An anion conducting electrolyte membrane with high performance where the electric conductivity and the water uptake are balanced, and a method of manufacturing the same are disclosed. The anion conducting electrolyte membrane comprises: a polymeric material which consists of fluorine polymer, olefinic polymer, or aromatic polymer; weak base quaternary salt obtained by the reaction of grafts introduced by graft polymerizing vinyl monomer which contains halogenated alkyl groups using radiation and strong organic bases.Type: GrantFiled: March 5, 2013Date of Patent: June 28, 2016Assignees: Japan Atomic Energy Agency, Daihatsu Motor Co., Ltd.Inventors: Kimio Yoshimura, Hiroshi Koshikawa, Tetsuya Yamaki, Masaharu Asano, Yasunari Maekawa, Hideyuki Shishitani, Hirohisa Tanaka, Susumu Yamaguchi, Koichiro Asazawa, Kazuya Yamamoto, Fumihiro Sanpei
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Patent number: 9347420Abstract: An object of the present invention is to provide a barrier discharge device capable of increasing the combustion efficiency of an engine while overcoming the problems of the cumbersome replacement of the electrodes and the commercialization of the device. The barrier discharge device of an engine includes a dielectric body and at least two barrier discharge electrodes which are held inside the dielectric body and to which voltages for barrier discharge are applied, wherein each of the barrier discharge electrodes are not exposed to the inside of a cylinder bore and are arranged so as to surround the cylinder bore.Type: GrantFiled: July 28, 2011Date of Patent: May 24, 2016Assignee: Daihatsu Motor Co., Ltd.Inventors: Yoonho Kim, Takeshi Serizawa, Hiroaki Oi, Akira Nakajima
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Publication number: 20160038921Abstract: A method for producing an exhaust gas purifying catalyst including a composite oxide represented by the following general formula (3), the method including a primary baking step of baking a coprecipitate obtained from an aqueous mixed salt solution of respective elements, a citrate complex obtained from an aqueous citric acid mixed salt solution of salts of the respective elements and citric acid, or a precipitate obtained from an alkoxide mixed solution of the respective elements at 500 to 1200° C., the respective elements constituting the exhaust gas purifying catalyst represented by the following general formula (3), including A, B and Fe but excluding Pd; a step of adding an aqueous solution of Pd salt to a primary composite oxide obtained through the primary baking step to give a precursor composition; and a secondary baking step of baking the precursor composition at 800 to 1400° C., AO.x(B2-y-ZFeyPdZO3-?) (3).Type: ApplicationFiled: October 16, 2015Publication date: February 11, 2016Applicants: DAIHATSU MOTOR CO., LTD., CATALER CORPORATIONInventors: Hirohisa TANAKA, Mari UENISHI, Masashi TANIGUCHI, Ryouhei IWASAKI, Mareo KIMURA, Satoshi MATSUEDA
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Patent number: 9190597Abstract: A power-generating system includes a heat source having a temperature that goes up and down over time; a first device that undergoes electric polarization due to a temperature change of the heat source; and a second device that takes out an electric power from the first device.Type: GrantFiled: March 30, 2011Date of Patent: November 17, 2015Assignee: DAIHATSU MOTOR CO., LTD.Inventors: Yoonho Kim, Takeshi Serizawa, Hirohisa Tanaka, Tadachika Nakayama, Masatoshi Takeda, Noboru Yamada, Koichi Niihara