ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,040, issued on April 15, was assigned to MURATA MANUFACTURING Co. LTD. (Kyoto, Japan).

"Piezoelectric device and ultrasonic transducer" was invented by Seiji Umezawa (Nagaokakyo, Japan), Shinsuke Ikeuchi (Nagaokakyo, Japan), Fumiya Kurokawa (Nagaokakyo, Japan), Nobuyoshi Adachi (Nagaokakyo, Japan) and Masayuki Suzuki (Nagaokakyo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A piezoelectric device includes a substrate, a piezoelectric element, and a lid. The piezoelectric element includes a base portion and a membrane portion. The base portion is on a first main surface and has an annular outer shape when viewed from a normal direction of the ...