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. 17, 2026
Filed:
Dec. 27, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Takuma Kodoi, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid ejection head includes a print element substrate having an ejection surface on which a plurality of ejection ports corresponding to print elements for ejecting liquid are formed and a plurality of ejection port arrays formed of a plurality of the ejection ports are formed and a protective member having a plurality of openings and placed on the print element substrate so that the plurality of openings and the plurality of ejection port arrays are aligned so as to correspond to each other, and one or more print element number identifiers for identifying one or more print element numbers assigned to the print elements are at one or more locations above the ejection port arrays and near at least one of the plurality of openings on the protective member.