US Patent Issued to Fujifilm Speciality Ink Systems on Sept. 15 for "Printing ink" (British Inventors)

ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,594, issued on Sept. 15, was assigned to Fujifilm Speciality Ink Systems Ltd. (Broadstairs, Great Britain).

"Printing ink" was invented by Gemma Osborne (Broadstairs, Great Britain), Emma Porter (Broadstairs, Great Britain) and Sean Slater (Broadstairs, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides an inkjet ink comprising: a radiation-curable material; 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl; and one or more photoinitiators selected from ethyl (2,4,6-trimethylbenzoyl) phenyl phosphinate, ethyl(3-benzoyl-2,4,6-trimethylbenzoyl)(phenyl) phosphinate, a polymeric phosphine oxide photoinitiator and mi...