ALEXANDRIA, Va., June 25 -- United States Patent no. 12,340,930, issued on June 24, was assigned to NIPPON STEEL Corp. (Tokyo).
"Magnetic core and transformer" was invented by Hisashi Mogi (Tokyo), Takahito Mizumura (Tokyo), Fumiaki Takahashi (Tokyo) and Teruyuki Tamaki (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a magnetic core and transformer which are reduced in core loss.The magnetic core according to the present invention comprises a core member which is formed by winding first electrical steel sheets, which is ring shaped seen from a side surface, and which has one or more bent parts seen from a side surface and one or more stacks of second electrical steel shee...