ALEXANDRIA, Va., May 12 -- United States Patent no. 12,624,232, issued on May 12, was assigned to SAKATA INX Corp. (Osaka, Japan).
"Metal printing ink composition" was invented by Takayuki Furuya (Osaka, Japan) and Takashi Araki (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An ink composition for printing on metal including a coloring pigment, resins, and a solvent is employed, wherein the ink composition contains a rosin-modified resin having an acid value of 10 to 400 mg KOH/g as at least part of the resins, and the solvent contains at least one compound selected from the group consisting of compounds represented by general formula (1):wherein each A is independently an alkylene group having...