US Patent Issued to artience, TOYOCOLOR on Sept. 23 for "Active energy ray curable inkjet ink and active energy ray curable ink set" (Japanese Inventor)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,410, issued on Sept. 23, was assigned to artience Co. Ltd. (Tokyo) and TOYOCOLOR Co. LTD. (Tokyo).

"Active energy ray curable inkjet ink and active energy ray curable ink set" was invented by Gosuke Kikutsuji (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An active energy ray curable inkjet ink comprising a pigment (A), a colorant derivative (B), a pigment dispersing resin (C) and a polymerizable compound (D), wherein the pigment (A) contains a C.I. pigment blue 15:6 and a quinacridone-based pigment at a specific amount and a specific ratio, the colorant derivative (B) contains a quinacridone-based pigment derivative, and the pigment dispers...