ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,410,505, issued on Sept. 9, was assigned to NIDEC MACHINE TOOL Corp. (Shiga, Japan).
"Coating film, tool, and machine tool" was invented by Takuma Kato (Shiga, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A coating film has a lamination unit including a first layer and at least one of a second layer and a third layer. The first layer is a nitride or the like of a first material represented by (Cr1-a-b-cAla[Ni1-dZrd]bXc). X is at least one element selected from Ti, Nb, Si, B, W, and V. a, b, c, and d represent atomic concentrations. The second layer is a nitride or the like of the second material represented by (AleCr1-e-fZf). Z is at least one ...