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:
Aug. 04, 2026
Filed:
Apr. 23, 2024
Canon Kabushiki Kaisha, Tokyo, JP;
Manabu Otsuka, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid discharge head includes a junction substrate including a first substrate and a second substrate joined with each other by an adhesive. A first surface of the first substrate to be joined with the second substrate is configured to have a plurality of first openings each configured to serve as a liquid passage, a first depressed portion capable of retaining the adhesive, and a second depressed portion configured to have a larger opening area than that of the first depressed portion and to be capable of retaining the adhesive; the first depressed portion is arranged in a region between two adjacent first openings of the plurality of first openings; and the second depressed portion is arranged in a region between the first openings and an outer edge of the first substrate.