ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,390, issued on April 7, was assigned to JFE Steel Corp. (Tokyo).
"Steel sheet and production method therefor" was invented by Shinichi Furuya (Tokyo), Takeshi Matsuda (Tokyo), Tomohiro Aoyama (Tokyo) and Shun Koibuchi (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lubricating film-coated steel sheet has at least one surface on which an organic resin film is formed. The organic resin film contains an acrylic resin having a glass transition point (Tg) of 100deg C. or higher and an acid value ratio R=acid value (mg-KOH/g)/Tg (deg C.) of 1.50 or more, and 5 mass % or more of a polyolefin wax having a melting point of 100deg C. or higher and 145...