ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,393, issued on March 18, was assigned to MURATA MANUFACTURING Co. LTD. (Nagaokakyo, Japan).

"Resonance device and resonance device manufacturing method" was invented by Masakazu Fukumitsu (Nagaokakyo, Japan) and Yoshiyuki Higuchi (Nagaokakyo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A resonance device that includes a MEMS substrate including a resonator, an upper lid that seals a vibration space of the resonator, and a ground portion positioned between the MEMS substrate and the upper lid, the ground portion being extended to an inside of the upper lid and electrically connected to the upper lid."

The patent was filed on Sept. 8, 2021,...