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. 03, 2026
Filed:
Jun. 22, 2023
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Tsubasa Horie, Chiryu, JP;
Shuhei Hiwada, Toyoake, JP;
BROTHER KOGYO KABUSHIKI KAISHA, Nagoya, JP;
Abstract
A printing device comprises an amplifying circuit configured to amplify a drive waveform signal, and an energy generating element. The energy generating element is configured to eject the liquid from a nozzle. The amplifying circuit includes a comparator of which the drive waveform signal is input to a positive input terminal, a gate driver, an output signal being input to the gate driver from the comparator, a first N-type MOSFET and a second N-type MOSFET. A drain of the first N-type MOSFET is connected to a power supply. A source of the first N-type MOSFET is connected to a drain of the second N-type MOSFET. The printing device comprises negative feedback wiring configured to connect a negative input terminal of the comparator to the source of the first N-type MOSFET and the drain of the second N-type MOSFET.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile