Patents by Inventor Tamae Karasawa

Tamae Karasawa 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: 20240110071
    Abstract: Provided is a UV-curable water-based ink excellent in coating film performance, especially alcohol resistance and scratch resistance. The UV-curable water-based ink includes at least a UV-curable oligomer, a colorant, and a mercapto compound, in which the UV-curable oligomer has a structural unit derived from a compound represented by the following chemical formula.
    Type: Application
    Filed: October 23, 2023
    Publication date: April 4, 2024
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Tamae Karasawa, Keisuke Inaba, Tomoko Nakagawa, Shuhei Sakatani, Kengo Kasai
  • Publication number: 20240052184
    Abstract: Provided is a UV-curable water-based ink including at least a UV-curable oligomer, a colorant, and a water-soluble polyfunctional (meth)acrylamide compound, in which the UV-curable oligomer has a structural unit derived from a water-soluble compound and a structural unit derived from a compound containing two or more polymerizable unsaturated bonds.
    Type: Application
    Filed: October 23, 2023
    Publication date: February 15, 2024
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Tamae Karasawa, Keisuke Inaba, Tomoko Nakagawa, Shuhei Sakatani, Kengo Kasai
  • Publication number: 20220282106
    Abstract: Provided is an ink for inkjet printing having high environmental safety, well satisfying characteristics required for a printing ink for a commercial inkjet printer such as high image quality performance, high coating performance, high-speed printability, and substrate versatility in a well-balanced manner, and having good pigment dispersion stability. The ultraviolet-curable water-based inkjet-printing ink contains at least an ultraviolet curable oligomer and a colorant. The ultraviolet-curable oligomer includes a structural unit derived from a polyisocyanate compound (A), a structural unit derived from a compound (B?) shown below, and a structural unit derived from a compound (C?) shown below. Compound (B?): a compound having two or more polymerizable unsaturated bonds and capable of bonding with the polyisocyanate compound (A) Compound (C?): a water-soluble compound capable of bonding with the polyisocyanate compound (A).
    Type: Application
    Filed: May 27, 2022
    Publication date: September 8, 2022
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Keisuke Inaba, Tomoko Nakagawa, Tamae Karasawa, Aiko Ito, Tetsuharu Yuge, Atsushi Tsujimoto, Shuhei Sakatani