Title:
圧電アクチュエータ、及び液体吐出装置
Document Type and Number:
Japanese Patent JP6988113
Kind Code:
B2
Abstract:
A piezoelectric actuator includes a first piezoelectric layer, a second piezoelectric layer, individual electrodes, a first conductor and an auxiliary electrode. The first piezoelectric layer and the second piezoelectric layer are joined to each other at a surface of the first piezoelectric layer. The individual electrodes are disposed on the first piezoelectric layer. The first conductor is spaced apart from the individual electrodes in a direction orthogonal to the surface of the first piezoelectric layer. The first conductor includes electrode portions and a connecting portion. The electrode portions each overlap a first portion of a corresponding one of the individual electrodes. The connecting portion connects at least two of the electrode portions to each other. The auxiliary electrode is connected to the connecting portion, overlaps the connecting portion, and is spaced apart from the first conductor in the direction.
Inventors:
Keiji Kura
Application Number:
JP2017053073A
Publication Date:
January 05, 2022
Filing Date:
March 17, 2017
Export Citation:
Assignee:
Brother Industries, Ltd.
International Classes:
H01L41/047; B41J2/14; H01L41/09
Domestic Patent References:
| JP2010155386A | ||||
| JP2009246059A |
Attorney, Agent or Firm:
Kaji/Suhara Patent Office