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:
Aug. 27, 2019
Filed:
May. 31, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Yasumichi Arimitsu, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The vibration actuator enables easy inspection of conductivity of a conduction path for connecting an electrode of an electromechanical energy conversion element to a GND potential. In the vibration actuator, a vibration element includes an elastic body formed of a material which is insulating, dielectric, or semi-conductive, and a piezoelectric element joined to the elastic body. The piezoelectric element includes a first electrode formed on a surface of a piezoelectric body by which surface the piezoelectric body is joined to the elastic body, a second electrode provided in a manner opposed to the first electrode via the piezoelectric body, and at least two conduction paths each having a conductor in a through-hole formed in the piezoelectric body. One of the at least two conduction paths electrically connects the first electrode and the second electrode.