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:
Nov. 03, 2026
Filed:
Nov. 21, 2024
Canon Kabushiki Kaisha, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A liquid ejection head includes an ejection element substrate having a substrate, a vibration plate provided at the substrate, a piezoelectric element having a first electrode, a piezoelectric layer, and a second electrode in this order on a surface of the vibration plate opposite from the substrate, a first wiring electrically connected to the first electrode, a second wiring electrically connected to the second electrode, and a pad electrode electrically connected to the first wiring and/or the second wiring. The liquid ejection head also includes an electric wiring board electrically connected to the pad electrode with a mounting electrode interposed in between. The pad electrode has higher hardness than the first wiring, and the second wiring and has a pad region bonded to the mounting electrode and a connection region bonded to the wiring electrically connected to the pad electrode.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile