US Patent Issued to artience, TOYOCOLOR on March 25 for "Aqueous inkjet ink, aqueous inkjet ink set, aqueous inkjet ink printed matter production method, and printed matter" (Japanese Inventors)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,480, issued on March 25, was assigned to artience Co. Ltd. (Tokyo) and TOYOCOLOR Co. LTD. (Tokyo).

"Aqueous inkjet ink, aqueous inkjet ink set, aqueous inkjet ink printed matter production method, and printed matter" was invented by Kazushi Sunaoshi (Tokyo), Masahiro Sugihara (Tokyo) and Yuki Sasaki (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An aqueous inkjet ink containing a pigment, a binder resin, a water-soluble organic solvent, a surfactant and water, wherein the binder resin contains, as structural units, an aqueous resin containing a structure derived from an ethylenically unsaturated monomer containing an acid group and a structu...