ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,707,216, issued on Aug. 11, was assigned to LG Electronics Inc. (Seoul, South Korea).
"Diaphragm, sound generation device, and method for manufacturing sound generation device" was invented by Sungdan Lee (Seoul, South Korea), Keunyoung Lee (Seoul, South Korea) and Duho Lee (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments relate to a diaphragm having high rigidity and high internal loss. The diaphragm may comprise: a matrix-shaped structure including a plurality of through-holes; and a graphene layer disposed in at least a part of the plurality of through-holes and coupled to the structure."
The patent was filed on May 13,...