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:
Nov. 04, 2025
Filed:
Dec. 21, 2023
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
BROTHER KOGYO KABUSHIKI KAISHA, Nagoya, JP;
Abstract
There is provided a liquid ejecting head including a flow channel member and a piezoelectric element. The flow channel member includes a flow channel including a nozzle and a pressure chamber connected to the nozzle. The piezoelectric element is fixed to the flow channel member that applies pressure to the liquid in the pressure chamber and causes droplets to be ejected from the nozzle. The natural frequency Fr of the flow channel is 120 kHz or higher. The diameter D [μm] of the nozzle and the taper angle θ [°] of the nozzle satisfy the relationships: θ≥2.1×D−36.4, D>22 μm, and θ<45°.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile