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. 30, 2021
Filed:
Jun. 24, 2020
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Yasuo Kato, Chita-gun, JP;
Brother Kogyo Kabushiki Kaisha, Aichi-Ken, JP;
Abstract
There is provided a liquid discharge head including: a communication plate having a plurality of descenders in respective communication with a plurality of nozzles, a pressure chamber plate being stacked on the communication plate and having a plurality of pressure chambers, a piezoelectric element arranged in a position overlapping with the pressure chambers in a stacking direction, and a discharge common channel extending in an array direction and being in communication with the plurality of pressure chambers. The discharge common channel includes: a first discharge portion formed in the communication plate; and a second discharge portion formed in the pressure chamber plate and in communication with the first discharge portion, the second discharge portion reaching as high as to a surface of the pressure chambers at the side of the piezoelectric element along the stacking direction.