ALEXANDRIA, Va., March 3 -- United States Patent no. 12,568,765, issued on March 3, was assigned to TDK Corp. (Tokyo).
"Piezoelectric thin film element and piezoelectric transducer" was invented by Junpei Morishita (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A piezoelectric thin film element contains an electrode layer (first electrode layer) and a piezoelectric thin film directly or indirectly stacked on the electrode layer. The piezoelectric thin film contains a tetragonal crystal 1 of a perovskite-type oxide and a tetragonal crystal 2 of a perovskite-type oxide. A (001) plane of the tetragonal crystal 1 is oriented in a normal direction of a surface of the electrode layer. A (001) plane of the t...