Patents by Inventor Mayuko TSUJIMOTO

Mayuko TSUJIMOTO 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).

  • Water-based ink composition and marking pen
    Patent number: 9617436
    Abstract: A water-based ink composition is described. The water-based ink composition includes a latex containing styrene-butadiene rubber particles, and a coloring agent, the glass transition temperature of the styrene-butadiene rubber particles being 10° C. to 50° C.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: April 11, 2017
    Assignee: ZEBRA CO., LTD.
    Inventors: Mayuko Tsujimoto, Makoto Ugajin, Motoko Ishida
  • WATER-BASED INK COMPOSITION AND MARKING PEN
    Publication number: 20140186093
    Abstract: The invention relates to a water-based ink composition comprising a latex containing styrene-butadiene rubber particles, and a coloring agent, the glass transition temperature of the styrene-butadiene rubber particles being 0° C. to 50° C.
    Type: Application
    Filed: November 12, 2013
    Publication date: July 3, 2014
    Applicant: ZEBRA CO., LTD.
    Inventors: Mayuko TSUJIMOTO, Makoto UGAJIN, Motoko ISHIDA