US Patent Issued to Ricoh on Dec. 2 for "Active energy ray curing composition, comprising a polymerizable monomer and a polyester resin" (Japanese Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,418, issued on Dec. 2, was assigned to Ricoh Co. Ltd. (Tokyo).

"Active energy ray curing composition, comprising a polymerizable monomer and a polyester resin" was invented by Yuusuke Fujita (Tokyo), Satoshi Kojima (Kanagawa, Japan), Hiroki Kobayashi (Kanagawa, Japan), Yuuki Matsushita (Kanagawa, Japan) and Hikaru Ishii (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An active energy ray curing composition contains a polymerizable monomer having a phosphoric acid ester group and a polyester resin having an unsaturated bond and a number average molecular weight of 3,000 or less."

The patent was filed on Dec. 13, 2022, under Applicatio...