ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,226, issued on March 24, was assigned to JFE STEEL Corp. (Tokyo).
"Electrical steel sheet with insulating coating" was invented by Nobuko Nakagawa (Tokyo), Chiyoko Tada (Tokyo) and Naoki Muramatsu (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is an electrical steel sheet with an insulating coating formed by applying a surface-treatment agent to at least one surface of the electrical steel sheet and drying the surface-treatment agent, wherein the surface-treatment agent contains: certain trialkoxysilane and/or dialkoxysilane (A); a silane coupling agent (B) that does not contain a polymerizable unsaturated group in its structure; p...