US Patent Issued to SUMITOMO ELECTRIC INDUSTRIES on Aug. 4 for "Cemented carbide" (Japanese Inventors)

ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,698,549, issued on Aug. 4, was assigned to SUMITOMO ELECTRIC INDUSTRIES LTD. (Osaka, Japan).

"Cemented carbide" was invented by Yasuki Kido (Osaka, Japan) and Katsumi Okamura (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cemented carbide includes a tungsten carbide grain and a binder phase, wherein the cemented carbide includes 80 volume % or more of the tungsten carbide grain and the binder phase in total, the cemented carbide includes 0.1 volume % or more and 20 volume % or less of the binder phase, the tungsten carbide grain is composed of a first region and a second region, each of the first region and the second region includes a fi...