Patent ID: 11932017
Assignee: SEIKO EPSON CORPORATION
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A liquid discharge head comprising: a diaphragm, a first electrode, a piezoelectric body, and a second electrode which are stacked in this order in a first direction, wherein
when a region of the piezoelectric body interposed between the first electrode and the second electrode is set as a first region, a region of the piezoelectric body other than the first region is set as a second region, a portion of the diaphragm that overlaps a boundary between the first region and the second region when viewed in the first direction is set as a first portion, a portion of the diaphragm that is different from the first portion and overlaps the first region when viewed in the first direction is set as a second portion, and a portion of the diaphragm that is different from the first portion and overlaps the second region when viewed in the first direction is set as a third portion, a thickness of the first portion is smaller than a thickness of the second portion and a thickness of the third portion.