ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,450, issued on Nov. 18, was assigned to KAO Corp. (Tokyo).
"Ink set" was invented by Teruyuki Fukuda (Wakayama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An ink set where a droplet of ink is ejected in an amount of not less than 100 pL and not more than 5,000 pL. The ink set includes at least two inks including an ink A and an ink B and the ink set satisfies conditions 1 to 3 as measured, on a surface of a solid image with a 100% print duty which is printed on a polyester film using the ink A and the ink B, respectively, with respect to coordinates (L*A, a*A, b*A) of the ink A and coordinates (L*B, a*B, b*B) of the ink B in CIE L*a*b* col...