ALEXANDRIA, Va., May 5 -- United States Patent no. 12,620,512, issued on May 5, was assigned to TDK Corp. (Tokyo).
"Soft magnetic powder and magnetic core" was invented by Nobuhiro Okuda (Tokyo), Hiroyuki Matsumoto (Tokyo) and Kazuhiro Yoshidome (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A soft magnetic powder includes Fe and Co. The total content of Fe and Co with respect to the soft magnetic powder overall is 90 mass % or greater. The Fe content with respect to the total content of Fe and Co is 30-95 mass %. The average particle diameter of the soft magnetic powder is 0.10-5.0 micro metre. The amount of oxygen on the surface of the soft magnetic powder is 0.010 g/m2 or less. The true density of ...