发明名称 |
PIEZOELECTRIC ACTUATOR, LIQUID DISCHARGE HEAD, AND RECORDING DEVICE |
摘要 |
A piezoelectric actuator has a satisfactory electrical connection of a common electrode and a surface electrode without increasing the size of the piezoelectric actuator, as well as a liquid discharge head and a recording device. The piezoelectric actuator includes: a ceramic substrate which is long in one direction and includes a vibrating plate, a common electrode disposed on the vibrating plate and a piezoelectric ceramic layer disposed on the common electrode and having a plurality of first through holes connected to the common electrode; a plurality of individual electrodes disposed in a region of the piezoelectric ceramic layer opposed to the common electrode; and a plurality of first surface electrodes respectively disposed inside a plurality of the first through holes in the piezoelectric ceramic layer and on a circumference of a plurality of the first through holes. |
申请公布号 |
US2013335486(A1) |
申请公布日期 |
2013.12.19 |
申请号 |
US201214002365 |
申请日期 |
2012.03.27 |
申请人 |
KOBAYASHI NAOKI;NAKAMURA TAKAHIRO;KYOCERA CORPORATION |
发明人 |
KOBAYASHI NAOKI;NAKAMURA TAKAHIRO |
分类号 |
B41J2/045;H01L41/047 |
主分类号 |
B41J2/045 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|