Patents by Inventor Risa KUGENUMA

Risa KUGENUMA 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).

  • ACTIVE ENERGY RAY-CURABLE INK COMPOSITION FOR OFFSET PRINTING
    Publication number: 20230272233
    Abstract: Provided is an active energy ray-curable ink composition for offset printing that exhibits superior properties comparable to ink compositions containing trimethylolpropane triacrylate (TMPTA), regardless of containing no TMPTA. This can be achieved through preparation of an active energy ray-curable ink composition for offset printing which contains at least one selected from the group consisting of diallyl phthalate resin, polyfunctional polyester acrylate, and rosin-modified alkyd resin having an sp value of 9.0 to 11.0 (cal/cm3)½, and contains ethylene oxide (EO)-modified TMPTA monomers having one to nine EO units in the molecule.
    Type: Application
    Filed: May 19, 2021
    Publication date: August 31, 2023
    Inventors: Toru KANEKO, Keishiro HISHINUMA, Kousuke NAGANUMA, Naoki OMI, Risa KUGENUMA