ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,014, issued on Nov. 25, was assigned to SAKATA INX Corp. (Osaka, Japan).
"Active energy ray-curable inkjet ink composition" was invented by Okinori Nakashima (Osaka, Japan), Takuya Myose (Osaka, Japan) and Jun Kawabata (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An active energy ray-curable inkjet ink composition contains: (A) hydroxy group-containing monofunctional (meth)acrylates by 20.0 to 60.0% by mass in the total amount of all polymerizable components; (B) polyfunctional monomers having ether bonds; (C) amine-modified oligomers by 10.0 to 50.0% by mass in the total amount of all polymerizable components; (D) ethyl phenyl(2,4,6...