ALEXANDRIA, Va., June 17 -- United States Patent no. 12,317,033, issued on May 27, was assigned to MURATA MANUFACTURING Co. LTD. (Nagaokakyo, Japan).
"Piezoelectric vibration plate and piezoelectric sound generating component" was invented by Yuko Yokoi (Nagaokakyo, Japan), Tadashi Okuzawa (Nagaokakyo, Japan) and Toshiyuki Sakai (Nagaokakyo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A piezoelectric vibration plate includes a base that includes a central portion and a circumferential portion and has conductivity. A piezoelectric portion is provided on the central portion that performs bending vibration in a manner to reciprocate between both sides in a thickness direction of the base when a voltage...