发明名称 ACTUATOR DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a liquid ejecting head that reduces stress concentration of a piezoelectric element and can suppress breaking of the piezoelectric element, and further to provide a liquid ejecting device.SOLUTION: A liquid ejecting head comprises: a passage forming substrate 10 on which pressure generating chambers 12 communicating with nozzle openings are arranged in parallel in a lateral direction; and a piezoelectric element 300 that is provided corresponding to the pressure generating chambers 12 at one surface side of the passage forming substrate 10 and has first electrodes 60, a piezoelectric layer 70 provided on the first electrodes 60 and a second electrode 80 provided on the piezoelectric layer 70. The second electrode 80 is continuously provided across a parallel arrangement direction of the pressure generating chambers 12 while the first electrodes 60 are being independently provided corresponding to the pressure generating chambers 12. In a direction intersecting with the parallel arrangement direction of the pressure generating chambers 12, opening groups 62 each of which is constituted of at least one opening 61 are provided across active sections 320 and non-active parts 330 of the first electrodes 60 on at least one of boundaries A and B among the active sections 320 and the non-active sections 330.
申请公布号 JP2014012418(A) 申请公布日期 2014.01.23
申请号 JP20130221943 申请日期 2013.10.25
申请人 SEIKO EPSON CORP 发明人 MIYAZAWA HIROSHI;ITO HIROSHI;KATO JIRO;SHIMIZU TOSHIHIRO
分类号 B41J2/055;B41J2/045 主分类号 B41J2/055
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