ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,491,586, issued on Dec. 9, was assigned to NIPPON STEEL Corp. (Tokyo).
"Welded joint" was invented by Masahiro Matsuba (Tokyo), Takuya Mitsunobu (Tokyo), Masaaki Uranaka (Tokyo) and Toyomitsu Nakamura (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "To further improve electrodeposition coating properties in a weld bead zone.A welded joint according to the present invention includes: a first steel sheet and a second steel sheet; and a weld bead zone formed by arc welding or laser welding, wherein at least one of the first steel sheet or the second steel sheet has a plating layer composed of a predetermined component and an oxide layer located on the ...