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:
Oct. 20, 2026
Filed:
Jul. 31, 2024
Canon Kabushiki Kaisha, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A liquid ejection head including: a joined substrate of a first substrate and a second substrate that are layered and joined with an adhesive is used. In the liquid ejection head, the joined substrate has a liquid channel by means of which the first substrate and the second substrate communicating, on a joining position of the first and the second substrate, the adhesive is disposed at a corner part so as to form an arcuate shape convex toward the corner part on a cross section thereof, the corner part being formed at a position corresponding to the liquid channel, the corner part being formed by an end face of the first substrate, and a plane of the second substrate, and on the joining position, a protective film is provided to be continuous from the first substrate via the adhesive disposed on the corner part.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile