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:
May. 12, 2026
Filed:
Nov. 30, 2023
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Takaaki Yoshino, Nagoya, JP;
Toru Kakiuchi, Chita, JP;
BROTHER KOGYO KABUSHIKI KAISHA, Nagoya, JP;
Abstract
A liquid droplet discharging apparatus includes: a channel member having a nozzle and a pressure chamber; an actuator which applies pressure to liquid inside the pressure chamber; and a controller which applies a driving signal to the actuator. Within one discharging cycle, the driving signal includes: a main pulse for causing a liquid droplet to be discharged from the nozzle; and a cancel pulse which is applied to the actuator after the main pulse. In a case that a driving frequency of the driving signal is f (unit: kHz), a time from an end point of the main pulse to a start point of the cancel pulse is Tw (unit: μsec) and a width of the cancel pulse is Tc (unit: μsec), the following expressions (1) and (2) hold: 50≤f≤−11.3×(Tw+Tc)+120 . . . (1); and Tw+Tc≤5.2 . . . (2).