Patent ID: 11872813
Assignee: SEIKO EPSON CORPORATION
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B  H | IPC B  H

Claim 10:
11. The liquid discharge head according to claim 1, wherein the piezoelectric element includes a first electrode, a second electrode, and a piezoelectric layer configured to deform in response to application of a voltage to at least one of the first electrode and the second electrode,
the second electrode, the piezoelectric layer, and the first electrode are disposed in this order in the first direction,
the piezoelectric layer has an active portion that is between the first electrode and the second electrode and has a non-active portion that is not between the first electrode and the second electrode,
at least a portion of the first portion is located at the same position as the active portion in the second direction, and
at least a portion of the second portion is located at the same position as the non-active portion in the second direction.