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:
Dec. 02, 2025
Filed:
Dec. 13, 2023
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Shogo Kawamura, Kanagawa, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/14 (2006.01); B41J 2/16 (2006.01);
U.S. Cl.
CPC ...
B41J 2/14201 (2013.01); B41J 2/1607 (2013.01); B41J 2/1637 (2013.01);
Abstract
A liquid ejection head is a liquid ejection head including a printing element substrate including a plate provided with an ejection port from which ink is ejected, including: a first groove that is provided around the plate of the printing element substrate; a second groove that is provided on the printing element substrate and in communication with the first groove through a communication portion; and a resin portion that is provided in the first groove, the communication portion, and in the second groove and protrudes from the plate in a direction crossing a surface of the plate.