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:
Apr. 18, 2024
Canon Kabushiki Kaisha, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A piezoelectric actuator includes a piezoelectric element including a first electrode, a piezoelectric layer, and a second electrode arranged in this order from a substrate, a first wiring electrically connected to the first electrode, a second wiring electrically connected to the second electrode, a first layer covering the piezoelectric element, a second layer arranged between the piezoelectric element and the first wiring and between the piezoelectric element and the second wiring, and a third layer arranged to cover the first wiring, the second wiring, and a periphery of the piezoelectric layer when viewed from a direction perpendicular to a surface of the substrate, wherein the first layer, the second layer, and the third layer are arranged in this order from the substrate, and wherein the third layer has higher moisture resistance than the second layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile