US Patent Issued to AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) on Feb. 4 for "Sealed dual membrane structure and device including the same" (British Inventor)

ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,219,336, issued on Feb. 4, was assigned to AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) Co. LTD. (Shenzhen, China).

"Sealed dual membrane structure and device including the same" was invented by Colin Robert Jenkins (Eb, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a sealed dual membrane (SDM) structure and a device including the same. The SDM structure according to the present invention includes a substrate, a first vibrating membrane and a second vibrating membrane disposed on the substrate, which form a sealed cavity together with the substrate, a first back electrode plate and a second back electrode plate disposed between the vib...