ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,533, issued on Dec. 16, was assigned to SEIKO EPSON Corp. (Japan).
"Treatment liquid, recording method, and ink set" was invented by Yuta Asakawa (Azumino, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A water-based treatment liquid is used for recording together with an ink jet ink which is a water-based ink composition, and the treatment liquid contains: a polyvalent metal salt; a resin selected from an acrylic-based resin and a maleic acid-based resin; and a compound selected from an organic acid and an organic amine. In the treatment liquid described above, a content of the resin with respect to a total mass of the treatment liquid is 1 p...