ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,508,796, issued on Dec. 30, was assigned to POSCO Co. LTD (Pohang-si, South Korea).
"Unconstrained vibration damping metal sheet with foam pores and method for manufacturing same" was invented by Jin-Tae Kim (Gwangyang-si, South Korea), Dae-Gyu Kang (Incheon, South Korea), Yang-Ho Choi (Gwangyang-si, South Korea) and Jung-Hwan Lee (Pohang-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an unconstrained vibration damping metal sheet with foam pores. The unconstrained vibration damping metal sheet of the present invention comprises: a metal sheet; an organic-inorganic pretreatment layer containing an acrylic resin formed on the ...