Patents Assigned to Daihatsu Motor Co., Ltd.
  • Patent number: 11590561
    Abstract: 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: Grant
    Filed: June 15, 2021
    Date of Patent: February 28, 2023
    Assignee: DAIHATSU MOTOR CO., LTD.
    Inventors: Takanobu Kawakami, Katsushi Morita, Akio Yamakawa, Kazuki Takada
  • Patent number: 11173484
    Abstract: 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: Grant
    Filed: November 20, 2019
    Date of Patent: November 16, 2021
    Assignees: University Of Yamanashi, Takahata Precision Co., Ltd., DAIHATSU MOTOR CO., LTD
    Inventors: Kenji Miyatake, Junpei Miyake, Taro Kimura, Naoki Yokota, Katsuya Nagase, Yousuke Konno, Koichiro Asazawa, Aoi Takano, Takeshi Kato
  • Patent number: 11154852
    Abstract: 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: Grant
    Filed: August 21, 2019
    Date of Patent: October 26, 2021
    Assignees: 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
  • Publication number: 20210316356
    Abstract: 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: Application
    Filed: June 15, 2021
    Publication date: October 14, 2021
    Applicant: DAIHATSU MOTOR CO., LTD.
    Inventors: Takanobu KAWAKAMI, Katsushi MORITA, Akio YAMAKAWA, Kazuki TAKADA
  • Patent number: 10828866
    Abstract: 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: Grant
    Filed: December 17, 2015
    Date of Patent: November 10, 2020
    Assignees: DAIHATSU MOTOR CO., LTD., KYOWA LEATHER CLOTH CO.,LTD.
    Inventors: Jun Nagata, Akira Sakabe, Kazuyoshi Baba, Tadahiko Inagaki, Haruyuki Ishizu, Keiko Nakada
  • Patent number: 10744700
    Abstract: 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: Grant
    Filed: December 9, 2015
    Date of Patent: August 18, 2020
    Assignee: DAIHATSU MOTOR CO., LTD.
    Inventors: Jun Nagata, Akira Sakabe, Kazuyoshi Baba
  • Publication number: 20200188989
    Abstract: 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: Application
    Filed: February 27, 2018
    Publication date: June 18, 2020
    Applicant: DAIHATSU MOTOR CO., LTD.
    Inventors: Takanobu KAWAKAMI, Katsushi MORITA, Akio YAMAKAWA, Kazuki TAKADA
  • Publication number: 20200061599
    Abstract: 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: Application
    Filed: August 21, 2019
    Publication date: February 27, 2020
    Applicants: 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
  • Publication number: 20200017154
    Abstract: 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: Application
    Filed: March 15, 2018
    Publication date: January 16, 2020
    Applicant: DAIHATSU MOTOR CO., LTD.
    Inventors: Naoya IKEDA, Manabu YAMADA
  • Publication number: 20200009948
    Abstract: 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: Application
    Filed: March 15, 2018
    Publication date: January 9, 2020
    Applicant: DAIHATSU MOTOR CO., LTD.
    Inventors: Naoya IKEDA, Manabu YAMADA
  • Patent number: 10283692
    Abstract: 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: Grant
    Filed: November 20, 2014
    Date of Patent: May 7, 2019
    Assignees: DAIHATSU MOTOR CO., LTD., NATIONAL UNIVERSITY CORPORATION NAGAOKA OF TECHNOLOGY
    Inventors: Satoru Yamanaka, Yoonho Kim, Takashi Ogawa, Akira Nakajima, Juyoung Kim, Hirohisa Tanaka, Tadachika Nakayama, Masatoshi Takeda, Noboru Yamada, Koichi Niihara
  • Patent number: 9979325
    Abstract: 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: Grant
    Filed: June 28, 2013
    Date of Patent: May 22, 2018
    Assignees: DAIHATSU MOTOR CO., LTD., National University Corporation Nagaoka University of Technology
    Inventors: Yoonho Kim, Satoru Yamanaka, Juyoung Kim, Hirohisa Tanaka, Tadachika Nakayama, Masatoshi Takeda, Noboru Yamada, Koichi Niihara
  • Publication number: 20180104886
    Abstract: 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: Application
    Filed: December 9, 2015
    Publication date: April 19, 2018
    Applicant: DAIHATSU MOTOR CO., LTD.
    Inventors: Jun NAGATA, Akira SAKABE, Kazuyoshi BABA
  • Publication number: 20180093450
    Abstract: 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: Application
    Filed: December 17, 2015
    Publication date: April 5, 2018
    Applicant: DAIHATSU MOTOR CO., LTD.
    Inventors: Jun NAGATA, Akira SAKABE, Kazuyoshi BABA, Tadahiko INAGAKI, Haruyuki ISHIZU, Keiko NAKADA
  • Publication number: 20160284964
    Abstract: 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: Application
    Filed: November 20, 2014
    Publication date: September 29, 2016
    Applicants: DAIHATSU MOTOR CO., LTD., NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY
    Inventors: Satoru YAMANAKA, Yoonho KIM, Takashi OGAWA, Akira NAKAJIMA, Juyoung KIM, Hirohisa TANAKA, Tadachika NAKAYAMA, Masatoshi TAKEDA, Noboru YAMADA, Koichi NIIHARA
  • Publication number: 20160225973
    Abstract: 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: Application
    Filed: September 9, 2014
    Publication date: August 4, 2016
    Applicants: DAIHATSU MOTOR CO., LTD., NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY
    Inventors: Juyoung KIM, Yoonho KIM, Takashi Ogawa, Satoru YAMANAKA, Akira NAKAJIMA, Hirohisa TANAKA, Tadachika NAKAYAMA, Masatoshi TAKEDA, Noboru YAMADA, Koichi NIIHARA
  • Patent number: 9379402
    Abstract: 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: Grant
    Filed: March 5, 2013
    Date of Patent: June 28, 2016
    Assignees: 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
  • Patent number: 9347420
    Abstract: 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: Grant
    Filed: July 28, 2011
    Date of Patent: May 24, 2016
    Assignee: Daihatsu Motor Co., Ltd.
    Inventors: Yoonho Kim, Takeshi Serizawa, Hiroaki Oi, Akira Nakajima
  • Publication number: 20160038921
    Abstract: 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: Application
    Filed: October 16, 2015
    Publication date: February 11, 2016
    Applicants: DAIHATSU MOTOR CO., LTD., CATALER CORPORATION
    Inventors: Hirohisa TANAKA, Mari UENISHI, Masashi TANIGUCHI, Ryouhei IWASAKI, Mareo KIMURA, Satoshi MATSUEDA
  • Patent number: 9190597
    Abstract: 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: Grant
    Filed: March 30, 2011
    Date of Patent: November 17, 2015
    Assignee: DAIHATSU MOTOR CO., LTD.
    Inventors: Yoonho Kim, Takeshi Serizawa, Hirohisa Tanaka, Tadachika Nakayama, Masatoshi Takeda, Noboru Yamada, Koichi Niihara