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. 02, 2021
Filed:
Aug. 08, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid discharge head includes a recording element substrate including a discharge port configured to discharge a liquid, a pressure generating element configured to pressurize the liquid to discharge the liquid, and an electric connecting portion connected to the pressure generating element through an electric wiring and configured to supply power for driving the pressure generating element to the pressure generating element. The liquid discharge head includes a first recessed portion and a second recessed portion formed in a range from a back surface of a discharge port surface in which the discharge port of the recording element substrate is formed up to the electric connecting portion, and a communicating portion configured to connect a space formed within the first recessed portion and a space formed within the second recessed portion by allowing the first recessed portion and the second recessed portion to communicate with each other.