ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,539,540, issued on Feb. 3, was assigned to PROTERIAL LTD. (Tokyo).

"Cemented carbide composite material, method for producing same, and cemented carbide tool" was invented by Hiroshi Shiratori (Tokyo), Hirotsugu Kawanaka (Tokyo), Shuho Koseki (Tokyo) and Tadashi Furuya (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a cemented carbide composite material including cemented carbide and non-cemented carbide having better high-temperature strength than conventional materials and capable of suppressing breakage and peeling of the composite material. A cemented carbide composite material includes: a cemented carbide part including WC-Co-based...