Patents by Inventor Keiji AMBO

Keiji AMBO 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).

  • Publication number: 20210291223
    Abstract: Provided is a method of applying an electron beam curable aqueous coating material, including coating a surface of a material to be coated with the electron beam curable aqueous coating material to form a wet coating film; drying the wet coating film until a time integration value of a reciprocal of an average value of viscosities of a region from a surface of the wet coating film to a depth of one half a film thickness of the wet coating film is in a range of 0.30 (Pa·s)?1·min to 0.90 (Pa·s)?1·min, which is acquired by an electric field pick-up method, and a solid content concentration of the wet coating film is 90% by mass or greater; and curing the obtained dry coating film by irradiation with an electron beam after the wet coating film is dried.
    Type: Application
    Filed: March 16, 2021
    Publication date: September 23, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shuji YOMO, Kanji MORI, Keiji AMBO, Mamoru KOUZAKI, Atsuo NABESHIMA, Eiichi OKAZAKI
  • Publication number: 20210268541
    Abstract: An object of the present invention is to provide a method for producing a coated material by using a composition that can be spray-coated, and that does not run downward after coating (i.e., rheology controllable). The method for producing a coated material includes step (1) of applying an electron beam-curable composition containing an ethylenically unsaturated group-containing compound to a substrate to form a coating film that has a surface viscosity of 1 Pa·s to 300 Pa·s as measured based on an electric-field pickup method, step (2) of drying the coating film obtained in step (1) to form a dry coating film when the electron beam-curable composition contains a volatile component, and step (3) of irradiating the substrate that has the coating film obtained in step (1) or the dry coating film obtained in step (2) with electron beams in an inert gas atmosphere to form a cured coating film.
    Type: Application
    Filed: December 21, 2020
    Publication date: September 2, 2021
    Applicants: TOAGOSEI CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Eiichi Okazaki, Kazuki Ofusa, Katsunobu Mochizuki, Shinya Kanbe, Nobuaki Koike, Keiji Ambo, Atsuo Nabeshima, Mamoru Kouzaki, Shuji Yomo, Kanji Mori
  • Patent number: 11097592
    Abstract: An on-board electric compressor that comprises: a housing; a compression unit; an electric motor; and an inverter device. The inverter device comprises: an inverter circuit that converts direct current power to alternating current power; and a noise reduction unit that is provided on an input side of the inverter circuit and that reduces common mode noise and normal mode noise that are included in the direct current power. The noise reduction unit comprises: a common mode choke coil; and a smoothing capacitor that, in cooperation with the common mode choke coil, constitutes a low pass filter circuit. The common mode choke coil has: a core that has a first core part and a second core part; a first winding that is wound around the first core part; and a second winding that is wound around the second core part.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: August 24, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Fumihiro Kagawa, Atsushi Naito, Yoshiki Nagata, Shunsuke Ambo, Keiji Yashiro, Kazuhiro Shiraishi
  • Patent number: 10773276
    Abstract: The coating film formed on an automobile body has softness during a film formation even on a thermally expandable/shrinkable base, and the cured film has an excellent appearance. Provided is a method for forming a multilayer coating film, the method comprises: applying an aqueous intermediate coating composition and preheating the applied composition at 60 to 90° C. to form an uncured film; preheating to form an uncured base coating film and a clear coating film; and baking and curing these uncured films to form a multilayer coating film, wherein the aqueous intermediate coating composition comprises (a) an acrylic resin emulsion having a specific properties, and (b) a film formation auxiliary agent that is a fatty acid diester compound having a boiling point of 280° C. to 350° C., and a cured film comprising (a) and (b) at a mass ratio of 3:1 has a rupture elongation of 1% or more.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: September 15, 2020
    Assignees: NIPPON PAINT AUTOMOTIVE COATINGS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takayuki Kawabata, Akira Yamazaki, Masako Hase, Keiji Ambo, Yoshinori Narita
  • Patent number: 10717895
    Abstract: A method for forming a multilayer coated film on an electrodeposition-coated alloyed hot-dip galvanized steel plate include step (1) of applying an aqueous intermediate coating composition (X), step (2) of applying an aqueous base coating composition (Y), step (3) of applying a clear coating composition (Z) containing an epoxide, and step (4) of heat-curing each coated film. The coating composition (X) contains a hydroxyl group-containing acrylic resin (A), a polyurethane resin (B), a hydroxyl group-containing polyester resin (C), a melamine resin (D), and an active methylene-blocked polyisocyanate compound (E). The ratio of (A) to (B) is controlled to a specific range, and an elongation at break, Young's modulus and Tukon hardness of the coated film of the coating composition (X) are controlled to specific ranges.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: July 21, 2020
    Assignees: KANSAI PAINT CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masako Hase, Keiji Ambo, Yoshinori Narita, Hiroshi Nishinaka, Yukihiro Ikeura, Kazuki Matsubara
  • Publication number: 20200199378
    Abstract: A method for forming a multilayer coating film which includes forming an uncured coating film by applying a first aqueous base coating composition, forming an uncured coating film by applying a second aqueous base coating composition, forming an uncured coating film by applying a clear coating composition, and simultaneously heat curing the obtained coating films. The first aqueous base coating composition contains a carbodiimide compound, the clear coating composition contains a hydroxyl group-containing acrylic resin (A) having a hydroxyl value of 120 to 160 mgKOH/g and an acid value of 5 to 10 mgKOH/g, a polyisocyanate compound (B), and a polycarbonate diol compound (C). The component (A) has a hydroxyl group-containing alkyl moiety having 3 or less carbon atoms, and the ratio of the numbers of moles of the isocyanate functional groups of the component (B) and the hydroxyl group functional groups of the component (A) is 1.15 to 1.35.
    Type: Application
    Filed: December 17, 2019
    Publication date: June 25, 2020
    Applicants: NIPPON PAINT AUTOMOTIVE COATINGS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Katsuhiko SUGIMOTO, Masako Hase, Hiroshi Mitsuishi, Keiji Ambo
  • Publication number: 20200131400
    Abstract: A water-based coating composition including: a polyol; a polyisocyanate; a hydrophobic curing catalyst which is made of an organometallic compound containing at least one metal atom selected from the group consisting of Sn, Bi, Zr, Ti, and Al and of which solubility in water under conditions of atmospheric pressure at 20° C. is 1 g/100 ml or less; and a nonionic surfactant of which an HLB value determined by a Griffin method is 10 to 15.
    Type: Application
    Filed: October 18, 2019
    Publication date: April 30, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shuji YOMO, Keiji AMBO
  • Publication number: 20190344310
    Abstract: A method for forming a multilayer coated film includes step (1) of applying an aqueous intermediate coating composition (A), step (2) of applying an aqueous base coating composition (B), step (3) of applying a clear coating composition (C), and step (4) of heat-curing the coated films. The coating composition (A) contains a specific hydroxyl group-containing acrylic resin (a1), a specific polyurethane resin (a2), a specific hydroxyl group-containing polyester resin (a3), a melamine resin (a4), and an active methylene-blocked polyisocyanate compound (a5). A ratio of the resin (a1) to the resin (a2) falls within a specific range. The heat-cured coated film of the coating composition (A) has a specific elongation at break, Young's modulus and Tukon hardness. The coating composition (C) contains a hydroxyl group-containing acrylic resin (c1) and an allophanate group-containing polyisocyanate compound (c2).
    Type: Application
    Filed: April 25, 2019
    Publication date: November 14, 2019
    Applicants: KANSAI PAINT CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuki MATSUBARA, Yoshinari Matsuura, Takayuki Ono, Hironori Tonomura, Masako Hase, Hiroshi Mitsuishi, Keiji Ambo
  • Patent number: 10441970
    Abstract: A method for forming a multilayer coated film on an object includes steps (1) to (3) below. A first colored coating material is applied to the object, thereby forming a first colored coated film (step (1)). The first colored coating material includes an iron-oxide-coated aluminum pigment and a quinacridone pigment and has a light reflectance property at specific wavelengths. A second colored coating material is applied to the first colored coated film, thereby forming a second colored coated film (step (2)). The second colored coating material includes a perylene pigment and has a specific hue. A clear coating material is applied to the second colored coated film (step (3)). A color difference ?E between the first colored coated film and the multilayer coated film is in a range of 20 to 30.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: October 15, 2019
    Assignees: KANSAI PAINT CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuhide Sato, Hiroshi Murata, Yoshiaki Ukai, Keiji Ambo, Katsunori Ito, Akiyo Tsukamoto
  • Publication number: 20180281019
    Abstract: The coating film formed on an automobile body has softness during a film formation even on a thermally expandable/shrinkable base, and the cured film has an excellent appearance. Provided is a method for forming a multilayer coating film, the method comprises: applying an aqueous intermediate coating composition and preheating the applied composition at 60 to 90° C. to form an uncured film; preheating to form an uncured base coating film and a clear coating film; and baking and curing these uncured films to form a multilayer coating film, wherein the aqueous intermediate coating composition comprises (a) an acrylic resin emulsion having a specific properties, and (b) a film formation auxiliary agent that is a fatty acid diester compound having a boiling point of 280° C. to 350° C., and a cured film comprising (a) and (b) at a mass ratio of 3:1 has a rupture elongation of 1% or more.
    Type: Application
    Filed: March 29, 2018
    Publication date: October 4, 2018
    Applicants: NIPPON PAINT AUTOMOTIVE COATINGS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takayuki KAWABATA, Akira YAMAZAKI, Masako HASE, Keiji AMBO, Yoshinori NARITA
  • Publication number: 20180230326
    Abstract: A method for forming a multilayer coated film on an electrodeposition-coated alloyed hot-dip galvanized steel plate include step (1) of applying an aqueous intermediate coating composition (X), step (2) of applying an aqueous base coating composition (Y), step (3) of applying a clear coating composition (Z) containing an epoxide, and step (4) of heat-curing each coated film. The coating composition (X) contains a hydroxyl group-containing acrylic resin (A), a polyurethane resin (B), a hydroxyl group-containing polyester resin (C), a melamine resin (D), and an active methylene-blocked polyisocyanate compound (E). The ratio of (A) to (B) is controlled to a specific range, and an elongation at break, Young's modulus and Tukon hardness of the coated film of the coating composition (X) are controlled to specific ranges.
    Type: Application
    Filed: February 13, 2018
    Publication date: August 16, 2018
    Applicants: KANSAI PAINT CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masako HASE, Keiji AMBO, Yoshinori NARITA, Hiroshi NISHINAKA, Yukihiro IKEURA, Kazuki MATSUBARA
  • Publication number: 20160288164
    Abstract: A method for forming a multilayer coated film on an object includes steps (1) to (3) below. A first colored coating material is applied to the object, thereby forming a first colored coated film (step (1)). The first colored coating material includes an iron-oxide-coated aluminum pigment and a quinacridone pigment and has a light reflectance property at specific wavelengths. A second colored coating material is applied to the first colored coated film, thereby forming a second colored coated film (step (2)). The second colored coating material includes a perylene pigment and has a specific hue. A clear coating material is applied to the second colored coated film (step (3)). A color difference ?E between the first colored coated film and the multilayer coated film is in a range of 20 to 30.
    Type: Application
    Filed: March 30, 2016
    Publication date: October 6, 2016
    Applicants: KANSAI PAINT CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuhide SATO, Hiroshi MURATA, Yoshiaki UKAI, Keiji AMBO, Katsunori ITO, Akiyo TSUKAMOTO