US Patent Issued to FUJIFILM on Jan. 20 for "Dye ink composition, cyan dye ink, dye ink for ink jet recording, ink jet recording method, and aqueous dye solution" (Japanese Inventors)

ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,945, issued on Jan. 20, was assigned to FUJIFILM Corp. (Tokyo).

"Dye ink composition, cyan dye ink, dye ink for ink jet recording, ink jet recording method, and aqueous dye solution" was invented by Keiichi Tateishi (Kanagawa, Japan), Takashi Saitou (Kanagawa, Japan), Yuta Takasaki (Kanagawa, Japan) and Yusuke Sakai (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A dye ink composition includes: a compound A represented by the general formula (I-1) as defined herein; a compound B represented by the general formula (I-2) as defined herein; at least one of a compound C-I represented by the general formula (I-3-1) as defined herein or a ...