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:
Feb. 24, 2026
Filed:
Apr. 11, 2024
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
BROTHER KOGYO KABUSHIKI KAISHA, Nagoya, JP;
Abstract
There is provided a liquid droplet ejecting head including: a channel member having a plurality of individual channels and a first common channel communicating with an inlet port of each of the plurality of individual channels; and a piezoelectric element arranged on the channel member. Each of the plurality of individual channels includes a nozzle, a pressure chamber communicating with the nozzle and a first communicating channel having an end which is the inlet port and the other end which communicates with the pressure chamber. The piezoelectric element is configured to apply a pressure to a liquid inside the pressure chamber to cause a liquid droplet of the liquid to be ejected from the nozzle. A channel resistance R[N s/m] of the first communicating channel satisfies a first relational expression: 3.48×10≤R1≤6.98×10.