US Patent Issued to NIPPON STEEL on July 14 for "Wound core" (Japanese Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,683,060, issued on July 14, was assigned to NIPPON STEEL Corp. (Tokyo).

"Wound core" was invented by Yusuke Kawamura (Tokyo) and Takahito Mizumura (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "This wound core is a wound core including a wound core main body obtained by stacking a plurality of polygonal annular grain-oriented electrical steel sheets in a side view, and the grain-oriented electrical steel sheet has planar portions and bent portions that are alternately continuous in a longitudinal direction, and in at least one bent portion, the crystal grain size Dpx (mm) of the grain-oriented electrical steel sheet is FL/4 or more. Here, FL the ...