ALEXANDRIA, Va., June 5 -- United States Patent no. 12,276,012, issued on April 15, was assigned to SUMITOMO ELECTRIC INDUSTRIES LTD. (Osaka, Japan).
"Cemented carbide" was invented by Yasuki Kido (Osaka, Japan), Yoshihiro Kimura (Osaka, Japan) and Anongsack Paseuth (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a cemented carbide comprising a plurality of tungsten carbide grains and a binder phase, wherein the cemented carbide comprises the tungsten carbide grains and the binder phase in a total of 89% by volume or more, the cemented carbide comprises 1.8% by volume or more and 20.0% by volume or less of the binder phase, the binder phase contains cobalt, the cemented carbide conta...