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:
Mar. 01, 2022
Filed:
Jul. 30, 2020
Seiko Epson Corporation, Tokyo, JP;
Kunio Wanikawa, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid discharge head includes a pressure chamber substrate provided with a plurality of pressure chambers, a piezoelectric element row in which a plurality of piezoelectric elements that are provided to correspond to the plurality of pressure chambers respectively and that generate a pressure for discharging a liquid are arranged in a predetermined direction, and a protection portion positioned opposite to the plurality of pressure chambers with respect to the piezoelectric element row, and forming a space common to the plurality of piezoelectric elements, in which in regard to a first portion of the protection portion and a second portion of the protection portion having a position different from the first portion in the predetermined direction, a rigidity of the first portion is higher than a rigidity of the second portion.