Patents by Inventor Yuko Hoshida

Yuko Hoshida 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).

  • Pigment dispersing resin
    Patent number: 7271213
    Abstract: This invention provides both a pigment dispersing resin which is a copolymer of: (A) polymerizable unsaturated monomer containing at least one kind of ionic functional group selected from the group consisting of tertiary amino group, quaternary ammonium salt and sulfonic acid group; (B) nonionic polymerizable unsaturated monomer having polyoxyalkylene chain; (C) ultraviolet-absorbing polymerizable unsaturated monomer and/or an ultraviolet-stabilizing polymerizable unsaturated monomer; and (D) other ethylenically unsaturated monomer, and water-based pigment dispersion which comprises said pigment dispersing resin, pigment, aqueous medium and, as circumstances may demand, dispersing agent as well.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: September 18, 2007
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Yuko Hoshida, Yoshiyuki Yukawa, Isao Kamimori, Akihiko Yamanouchi
  • Resin for pigment dispersion
    Patent number: 7026392
    Abstract: This invention relates to the use of a copolymer of polymerizable unsaturated monomer containing at least one kind of ionic functional group selected from the group consisting of quaternary ammonium salt group and sulfonic acid group, nonionic polymerizable unsaturated monomer having polyoxyalkylene chain, and other ethylenically unsaturated monomer, as a pigment dispersing resin for water-based paint or water-based ink.
    Type: Grant
    Filed: October 12, 2001
    Date of Patent: April 11, 2006
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Yoshio Nakajima, Yoshiyuki Yukawa, Isao Kamimori, Akihiko Yamanouchi, Yuko Hoshida
  • Pigment dispersing resin
    Publication number: 20060052514
    Abstract: This invention relates to the use of a copolymer of polymerizable unsaturated monomer containing at least one kind of ionic functional group selected from the group consisting of quaternary ammonium salt group and sulfonic acid group, nonionic polymerizable unsaturated monomer having polyoxyalkylene chain, and other ethylenically unsaturated monomer, as a pigment dispersing resin for water-based paint or water-based ink.
    Type: Application
    Filed: October 11, 2005
    Publication date: March 9, 2006
    Inventors: Yoshio Nakajima, Yoshiyuki Yukawa, Isao Kamimori, Akihiko Yamanouchi, Yuko Hoshida
  • Pigment dispersing resin
    Patent number: 6994745
    Abstract: This invention provides both a pigment dispersing resin which is a copolymer of: (A) polymerizable unsaturated monomer containing at least one kind of ionic functional group selected from the group consisting of tertiary amino group, quaternary ammonium salt and sulfonic acid group; (B) nonionic polymerizable unsaturated monomer having polyoxyalkylene chain; (C) ultraviolet-absorbing polymerizable unsaturated monomer and/or an ultraviolet-stabilizing polymerizable unsaturated monomer; and (D) other ethylenically unsaturated monomer, and water-based pigment dispersion which comprises said pigment dispersing resin, pigment, aqueous medium and, as circumstances may demand, dispersing agent as well.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: February 7, 2006
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Yuko Hoshida, Yoshiyuki Yukawa, Isao Kamimori, Akihiko Yamanouchi
  • Pigment dispersing resin
    Publication number: 20050252418
    Abstract: This invention provides both a pigment dispersing resin which is a copolymer of (A) polymerizable unsaturated monomer containing at least one kind of ionic functional group selected from the group consisting of tertiary amino group, quaternary ammonium salt and sulfonic acid group; (B) nonionic polymerizable unsaturated monomer having polyoxyalkylene chain; (C) ultraviolet-absorbing polymerizable unsaturated monomer and/or an ultraviolet-stabilizing polymerizable unsaturated monomer; and (D) other ethylenically unsaturated monomer, and water-based pigment dispersion which comprises said pigment dispersing resin, pigment, aqueous medium and, as circumstances may demand, dispersing agent as well.
    Type: Application
    Filed: June 29, 2005
    Publication date: November 17, 2005
    Inventors: Yuko Hoshida, Yoshiyuki Yukawa, Isao Kamimori, Akihiko Yamanouchi
  • Pigment dispersing resin and water-based pigment dispersion which contains the same
    Patent number: 6852817
    Abstract: This invention provides a pigment dispersing resin which is a copolymer of: (A) sulfonic group-containing polymerizable unsaturated monomer, (B) polyoxyalkylene chain-containing nonionic polymerizable unsaturated monomer, (C) (C-1) (meth)acrylic acid ester type polymerizable monomer having two tertiary alkyl groups per molecule and/or (C-2) (meth)acrylic acid ester type polymerizable monomer having one tertiary alkyl group and one secondary hydroxyl group per molecule, and (D) other ethylenically unsaturated monomer; and also provides water-based pigment dispersion which comprises said pigment dispersing resin, pigment, aqueous medium and, as circumstances may demand, basic neutralizer and/or dispersing agent as well.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: February 8, 2005
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Yoshiyuki Yukawa, Yuko Hoshida, Isao Kamimori
  • Pigment dispersing resin and water-based pigment dispersion which contains the same
    Publication number: 20030236324
    Abstract: This invention provides a pigment dispersing resin which is a copolymer of:
    Type: Application
    Filed: March 28, 2003
    Publication date: December 25, 2003
    Inventors: Yoshiyuki Yukawa, Yuko Hoshida, Isao Kamimori
  • Resin for pigment dispersion
    Publication number: 20030125414
    Abstract: This invention relates to the use of a copolymer of polymerizable unsaturated monomer containing at least one kind of ionic functional group selected from the group consisting of quaternary ammonium salt group and sulfonic acid group, nonionic polymerizable unsaturated monomer having polyoxyalkylene chain, and other ethylenically unsaturated monomer, as a pigment dispersing resin for water-based paint or water-based ink.
    Type: Application
    Filed: June 13, 2002
    Publication date: July 3, 2003
    Inventors: Yoshio Nakajima, Yoshiyuki Yukawa, Isao Kamimori, Akihiko Yamanouchi, Yuko Hoshida
  • Pigment dispersing resin
    Publication number: 20030045637
    Abstract: This invention provides both a pigment dispersing resin which is a copolymer of:
    Type: Application
    Filed: April 5, 2002
    Publication date: March 6, 2003
    Inventors: Yuko Hoshida, Yoshiyuki Yukawa, Isao Kamimori, Akihiko Yamanouchi