ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,644, issued on March 25, was assigned to JFE Steel Corp. (Tokyo).
"High-strength galvanized steel sheet and method for manufacturing the same" was invented by Hiroshi Hasegawa (Tokyo), Tatsuya Nakagaito (Tokyo) and Kana Sasaki (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A high-strength galvanized steel sheet includes a base steel sheet and a galvanized layer on a surface thereof. The base steel sheet has a predetermined chemical composition and a microstructure in which an area fraction of martensite is 30% or less, an area fraction of pearlite is 1% or less, a total area fraction of tempered martensite and carbide-containing bainite is 3...