ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,491,564, issued on Dec. 9, was assigned to MOLDINO Tool Engineering Ltd. (Tokyo).
"Coated cutting tool" was invented by Masakazu Isaka (Narita, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A coated cutting tool which has, on a surface of a substrate, a layer A of a face-centered cubic lattice structure which is a nitride or carbonitride containing 50 atom % or more of Al, 20 atom % or more of Cr, 85 atom % or more of Al and Cr, and 4 atom % or more and 15 atom % or less of Si, and a layer B provided on the layer A. The layer B is a nitride or carbon nitride which contains 70 atom % or more and 90 atom % or less of Ti, 5 atom % or more and 20 atom...