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:
Jul. 21, 2026
Filed:
Feb. 27, 2024
Canon Kabushiki Kaisha, Tokyo, JP;
Mitsuru Chida, Kanagawa, JP;
Junichiro Iri, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid ejection head includes: a housing; an element substrate disposed on a first surface of the housing and including an energy generation element to eject a liquid; a relay wiring member disposed on a second surface at a position protruding in a liquid ejection direction more than the first surface and surrounding the element substrate; a lead connecting the element substrate with the relay wiring member; a filling portion provided between the housing and a side surface of the element substrate; a connection portion surrounded between the housing and the element substrate, connected with the filling portion, and adjacent to the lead; and a sealant sealing the filling portion, the connection portion, and the lead, in which a distance between the housing and the element substrate is smaller in a portion adjacent to the second surface than in a portion between the first surface and the second surface.