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:
Mar. 29, 2011
Filed:
Jun. 04, 2007
Jun Isono, Nagoya, JP;
Jun Isono, Nagoya, JP;
Brother Kogyo Kabushiki Kaisha, Aichi-Ken, JP;
Abstract
A piezoelectric actuator includes a first ceramic sheet having individual inner-electrodes formed thereon, a second ceramic sheet having a common inner-electrode formed thereon, a third ceramic sheet having individual surface-electrodes formed thereon, and a fourth ceramic sheet having a plurality of connection electrodes connecting the individual surface-electrodes and the individual inner-electrodes respectively. The connection electrodes have first portions, second portions and third portions respectively, the first portions facing the individual surface-electrodes and arranged at a pitch in a row in a row-direction, the second portions facing the individual inner-electrodes and being arranged in the row-direction to be shifted with respect to the first portions by half the pitch respectively; and the third portions connecting the first portions and the second portions respectively. Accordingly, the electrodes can be made compact or arranged highly densely without lowering the conductance between the electrodes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile