US Patent Issued to NIPPON STEEL on March 31 for "Hot rolled steel sheet for non oriented electrical steel sheet and producing method thereof" (Japanese Inventor)

ALEXANDRIA, Va., March 31 -- United States Patent no. 12,592,331, issued on March 31, was assigned to NIPPON STEEL Corp. (Tokyo).

"Hot rolled steel sheet for non oriented electrical steel sheet and producing method thereof" was invented by Yoshihiro Arita (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hot rolled steel sheet is for a non oriented electrical steel sheet, wherein an amount of solid-soluted Ti is 0.0005% or less, Ti carbides with an equivalent circle diameter of 10 to 50 nm exist in a grain and at a grain boundary of a ferrite grain, 10 to 100 number % of the Ti carbides which exist in the grain are compositely precipitated with a Mn sulfide, and a number density of the Ti carbides whic...