ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,235, issued on Oct. 7, was assigned to Artience Co. Ltd. (Tokyo) and TOYOCOLOR Co. LTD. (Tokyo).
"Aqueous inkjet ink and printed matter" was invented by Kazushi Sunaoshi (Tokyo), Takanori Nomura (Tokyo) and Riho Morita (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An embodiment of the present invention relates to an aqueous inkjet ink containing a pigment, a binder resin, a water-soluble organic solvent, an unmodified acetylene diol-based surfactant (A1), and an alkylene oxide-modified acetylene diol-based surfactant (A2) having an HLB value of 4 to 10, wherein contents of the unmodified acetylene diol-based surfactant (A1) and the alkylene o...