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:
Dec. 22, 2020
Filed:
Jul. 16, 2020
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
There is provided a liquid discharge head including: a channel substrate including a pressure chamber; a support substrate having a through hole; a piezoelectric element disposed between the channel substrate and the support substrate in a thickness direction of the channel substrate; a drive section disposed on a surface of the support substrate on a side opposite to the piezoelectric element; a trace passing through the through hole of the support substrate, extending on the support substrate toward the drive section, and connected to the piezoelectric element and the drive section; and a reservoir member including a channel communicating with the pressure chamber, and joined to the surface of the support substrate with adhesive. A protrusion or a recess is provided on the surface of the support substrate on the side opposite to the piezoelectric element at a position between the trace and the channel.