US Patent Issued to NIPPON STEEL on Sept. 22 for "Wound core" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,744,143, issued on Sept. 22, 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: "Provided is a wound core including: a substantially rectangular wound core main body in a side view, in which the wound core main body includes a portion in which grain-oriented electrical steel sheets in which planar portions and corner portions are alternately continuous in a longitudinal direction and an angle formed by two planar portions adjacent to each other with each of the corner portions therebetween is 90deg are stacked in a sheet thickness di...