US Patent Issued to Nippon Kayaku on Feb. 17 for "Inkjet ink, inkjet recording method, ink set, ink medium set, and print medium" (Japanese Inventors)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,552,952, issued on Feb. 17, was assigned to Nippon Kayaku K.K. (Tokyo).

"Inkjet ink, inkjet recording method, ink set, ink medium set, and print medium" was invented by Yuki Kaji (Tokyo), Aiko Matsumura (Tokyo), Keishiro Yoshida (Tokyo) and Shunta Misawa (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An inkjet ink which contains a coloring agent, an organic compound excluding the coloring agent, and water, and in which the organic compound contains a compound a such as diethyleneglycol monohexyl ether, a compound b such as 1,8-octane diol, and a compound c such as 1,5-pentane diol, and relationships of (a)less than equal to(c) and 0.1less than eq...