US Patent Issued to Artience, TOYOCOLOR on Feb. 3 for "Active energy ray-curable inkjet ink, and printed matter" (Japanese Inventors)

ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,252, issued on Feb. 3, was assigned to Artience Co. Ltd. (Tokyo) and TOYOCOLOR Co. LTD. (Tokyo).

"Active energy ray-curable inkjet ink, and printed matter" was invented by Takumi Yoshikawa (Tokyo) and Gosuke Kikutsuji (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an active energy ray-curable inkjet ink containing: C. I. Pigment Yellow 150; an active energy ray-polymerizable compound (A-1) including multiple ethylene oxide groups and a specific structure; an acylphosphine oxide initiator (B-1); and a siloxane surfactant (C-1) having a weight-average molecular weight of 400 to 20,000, wherein a total amount of a compound represented...