The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 09, 2026
Filed:
Jul. 01, 2021
Kyocera Corporation, Kyoto, JP;
Keisuke Namba, Kirishima, JP;
KYOCERA CORPORATION, Kyoto, JP;
Abstract
A piezoelectric element includes a stack including a plurality of internal electrodes and a plurality of piezoelectric layers stacked on one another, and a surface electrode located on a side surface of the stack and electrically connected to the plurality of internal electrodes. The stack includes the piezoelectric layers being stacked and the internal electrodes each between adjacent piezoelectric layers. The internal electrodes include a first electrode that applies a voltage to the piezoelectric layers to cause the stack to bend in a first direction (X-direction) orthogonal to a longitudinal direction (Z-direction) of the stack, and a second electrode that applies a voltage to the piezoelectric layers to cause the stack to bend in a second direction (Y-direction) orthogonal to the longitudinal direction and to the first direction. The stack includes a groove extending in the longitudinal direction on an upper surface of the stack.