US Patent Issued to SUMITOMO ELECTRIC HARDMETAL on July 29 for "Cutting tool" (Japanese Inventors)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,370,606, issued on July 29, was assigned to SUMITOMO ELECTRIC HARDMETAL CORP. (Itami, Japan).

"Cutting tool" was invented by Kenta Sano (Itami, Japan), Satoru Kukino (Itami, Japan), Michiko Matsukawa (Itami, Japan) and Nozomi Tsukihara (Itami, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cutting tool includes a substrate; and a coating film, wherein the coating film includes a multilayer structure layer having first unit layer(s) and second unit layer(s), the first unit layer(s) and the second unit layer(s) are alternately layered, under a condition X-ray diffraction intensities of different planes in the multilayer structure layer are respect...