ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,564, issued on June 23, was assigned to Ricoh Co. Ltd. (Tokyo).

"Curable composition, storage container, and three-dimensional object producing method" was invented by Yuki Shingai (Kanagawa, Japan) and Hiroyuki Naito (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A curable composition is provided. The curable composition contains a multifunctional urethane (meth)acrylate monomer (component 1), a (meth)acrylate monomer (component 2), and an inorganic filler (component 3). A mass content ratio (component 1:component 2) of the component 1 to the component 2 is from 65:35 through 40:60."

The patent was filed on March 16, 2023, under Application...