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. 24, 2024
Filed:
May. 26, 2021
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Toru Kakiuchi, Chita-gun, JP;
Taisuke Mizuno, Yokkaichi, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
A liquid droplet discharging head includes a channel unit having nozzles and pressure chambers in respective communication with the nozzles, and a piezoelectric element having a vibration plate arranged on an upper surface of the channel unit to cover the pressure chambers and a piezoelectric layer arranged on an upper surface of the vibration plate. The pressure chambers have a length L longer than its width, and the channel unit has the nozzles and the pressure chambers aligned at a density of 300 dpi or higher in a conveyance direction. The length L of the pressure chambers and the diameter D of nozzle holes of the nozzles satisfy this relation or condition: 35≤L/D≤50.