Patents by Inventor Mutsuko MASATOKI

Mutsuko MASATOKI 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: 20240010860
    Abstract: An embodiment relates to a chromatic process color inkjet ink containing water, a pigment, an organic solvent, a binder resin, and a wax, in which the organic solvent contains an organic solvent having a boiling point at 1 atmosphere of 190° C. or lower, the organic solvent having a boiling point at 1 atmosphere of 190° C. or lower contains a dihydric alcohol-based solvent and/or a glycol monoalkyl ether solvent, and when an amount of an organic solvent having a boiling point at 1 atmosphere of 150° C. or higher relative to a total amount of ink is S, and an amount contained of the binder resin relative to the total amount of ink is R, the value of S/R is 3.0 or less.
    Type: Application
    Filed: October 18, 2021
    Publication date: January 11, 2024
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD.
    Inventors: Ryosuke YABUKI, Masahiro SUGIHARA, Mayuko HAYAMIZU, Mutsuko MASATOKI, Takanori NOMURA, Yuji KAMEYAMA
  • Publication number: 20230212412
    Abstract: An embodiment relates to an inkjet ink containing a mixed crystal pigment including two or more naphthol-based azo pigments, a binder resin (a-1) having an acid value of 1 to 80 mgKOH/g, a surfactant, and a water-soluble organic solvent, in which the amount of a water-soluble organic solvent having a boiling point of 240° C. or more at 1 atmosphere is 8% by mass or less relative to the total amount of the water-based inkjet ink.
    Type: Application
    Filed: March 22, 2021
    Publication date: July 6, 2023
    Applicants: TOYO INK SC HOLDINGS CO., LTD., TOYOCOLOR CO., LTD.
    Inventors: Mutsuko MASATOKI, Atsushi YODA, Yuji KAMEYAMA
  • Publication number: 20230089244
    Abstract: An aqueous ink for inkjet printing containing a colorant, a resin, a wetting agent, a surfactant, and water, in which the wetting agent contains a polyhydric alcohol at 60% by mass or more relative to the total amount of the wetting agent, the polyhydric alcohol having a solubility parameter value of 11.0 to 15.0, the resin contains a (meth)acrylic resin having a polydimethylsiloxane chain structure and a polyether chain structure on a side chain and a weight average molecular weight of 2,000 to 30,000, the (meth)acrylic resin is water soluble, the ratio of the blend amount of the polyhydric alcohol to the blend amount of the (meth)acrylic resin is 1500:1 to 6:1 by mass ratio, and the content of fluorine atoms in the total amount of the aqueous ink is 500 mass ppm or less.
    Type: Application
    Filed: December 11, 2020
    Publication date: March 23, 2023
    Applicants: TOYO INK SC HOLDING CO., LTD., TOYOCOLOR CO., LTD.
    Inventors: Atsushi YODA, Mutsuko MASATOKI, Kazuhiro JONAI