ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,234, issued on Oct. 7, was assigned to DNP FINE CHEMICALS Co. LTD. (Yokohama, Japan).
"Ink composition" was invented by Masaki Inumaru (Yokohama, Japan), Yasuma Saito (Yokohama, Japan), Koujun Utaka (Yokohama, Japan) and Karuna Iwasawa (Yokohama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An ink composition able to yield a printed adherend having high weathering resistance; wherein, this ink composition is an active energy ray curing type ink composition that is discharged using an inkjet method. The ink composition contains a polymerizable compound, an ultraviolet radiation absorber and an antioxidant. The ultraviolet radiation absorber ha...