The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 2020
Filed:
Mar. 18, 2019
Seiko Epson Corporation, Tokyo, JP;
Seiko Epson Corporation, , JP;
Abstract
A liquid discharge head includes: a pressure chamber communicating with a nozzle through which liquid is discharged; a piezoelectric element having a lamination structure in which a first electrode, a piezoelectric body layer, and a second electrode are laminated in this order; a vibration plate installed between the first electrode of the piezoelectric element and the pressure chamber; a protective substrate in which an internal space for housing the piezoelectric element is formed; and a lead-out wiring connected to the second electrode, in which a column portion is provided at a position overlapping with the piezoelectric element in the internal space of the protective substrate when viewed in a plan view, and the lead-out wiring is provided on a wall surface of the column portion.