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:
Mar. 24, 2015
Filed:
Mar. 09, 2011
Yasuyuki Araki, Kawasaki, JP;
Hiroyuki Seki, Oyama, JP;
Yasuyuki Araki, Kawasaki, JP;
Hiroyuki Seki, Oyama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A vibrator, which constitutes a vibrating device of a vibration-type driving apparatus in which the vibrating device is bonded to an electromechanical-energy-conversion element, has at least one projection portion thereon, and elliptic motion can arise at each projection portion by applying an alternating electric field to the electromechanical-energy-conversion element. A driven object moves by the elliptic motion when in contact with the projection portion in a direction intersecting with a width direction. The vibrator includes a base and the at least one projection portion, with each projection portion having at least two wall portions extending in a base out-of-plane direction, and a contact portion having a contact surface with the driven object. The contact surface connects the wall portions, and boundary portions between the base and the wall portions are provided such that displacement directions in a normal direction are the same.