Patents by Inventor Shunta MISAWA

Shunta MISAWA 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).

  • Ink emulsion composition and water-based ink
    Patent number: 11034849
    Abstract: Disclosed is an ink emulsion composition that, when used as an ink composition, retains a high concentration of a colorant and exhibits good re-dispersibility after drying, and that causes no change in the physical properties of the ink when stored for a long period of time. The ink emulsion composition contains: (A) a dye and/or a pigment; (B) a styrene-(meth)acrylic copolymer; and (C) a compound in an amount of more than 0.18 mass %, the compound (C) being represented by formula (1): where t represents 1 to 5.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: June 15, 2021
    Assignee: NIPPON KAYAKU KABUSHIKI KAISHA
    Inventors: Keijyou Sasaki, Shinsuke Shimizu, Shunta Misawa, Junya Maseki, Hiroko Higuchi
  • INK DISPERSION COMPOSITION AND WATER-BASED INK
    Publication number: 20200270474
    Abstract: A dispersion composition that has good storage stability, achieves high density of a colorant when used as ink, has good redispersibility after drying, and preserves the physical properties of ink when stored for a long period of time is provided. The dispersion composition comprises: (A) a dye and/or a pigment; (B) a styrene-(meth)acrylic copolymer; and (C) a compound represented by the following formula (1): where t represents 1 to 5, wherein a content of (C) the compound represented by the formula (1) is more than 0.18 mass %, and a sum total of a sodium ion concentration, a potassium ion concentration, and a lithium ion concentration in the ink dispersion composition is 6800 ppm or less.
    Type: Application
    Filed: August 31, 2018
    Publication date: August 27, 2020
    Applicant: NIPPON KAYAKU KABUSHIKI KAISHA
    Inventors: Shunta MISAWA, Hiroko HIGUCHI, Shinsuke SHIMIZU, Keijyou SASAKI, Junya MASEKI, Ryutarou ITO
  • INK EMULSION COMPOSITION AND WATER-BASED INK
    Publication number: 20200040202
    Abstract: Disclosed is an ink emulsion composition that, when used as an ink composition, retains a high concentration of a colorant and exhibits good re-dispersibility after drying, and that causes no change in the physical properties of the ink when stored for a long period of time. The ink emulsion composition contains: (A) a dye and/or a pigment; (B) a styrene-(meth)acrylic copolymer; and (C) a compound in an amount of more than 0.18 mass %, the compound (C) being represented by formula (1): where t represents 1 to 5.
    Type: Application
    Filed: October 28, 2016
    Publication date: February 6, 2020
    Applicant: NIPPON KAYAKU KABUSHIKI KAISHA
    Inventors: Keijyou SASAKI, Shinsuke SHIMIZU, Shunta MISAWA, Junya MASEKI, Hiroko HIGUCHI
  • INK EMULSION COMPOSITION AND WATER-BASED INK
    Publication number: 20180305566
    Abstract: Disclosed is an ink emulsion composition that, when used as an ink composition, retains a high concentration of a colorant and exhibits good re-dispersibility after drying, and that causes no change in the physical properties of the ink when stored for a long period of time. The ink emulsion composition contains: (A) a dye and/or a pigment; (B) a styrene-(meth)acrylic copolymer; and (C) a compound in an amount of more than 0.18 mass %, the compound (C) being represented by formula (1): where t represents 1 to 5.
    Type: Application
    Filed: October 28, 2016
    Publication date: October 25, 2018
    Applicant: NIPPON KAYAKU KABUSHIKI KAISHA
    Inventors: Keijyou SASAKI, Shinsuke SHIMIZU, Shunta MISAWA, Junya MASEKI, Hiroko HIGUCHI