ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,261, issued on April 15, was assigned to Dai Nippon Printing Co. Ltd. (Tokyo).
"Thermal transfer sheet and method for producing printed material" was invented by Yue Yu (Tokyo), Hiroshi Eguchi (Tokyo), Masayuki Tani (Tokyo) and Yasushi Yoneyama (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A thermal transfer sheet includes a substrate and a transfer layer, in which the transfer layer after transfer has a reduced peak height (Spk) of 0.6 micro metre or more. A method for producing a printed material using a thermal transfer sheet including a particle layer disposed on a substrate and an image-receiving sheet including a thermal protrusion-and/...