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. 30, 2016
Filed:
Dec. 16, 2013
Canon Kabushiki Kaisha, Tokyo, JP;
Tatsuo Furuta, Machida, JP;
Hiroshi Saito, Kawasaki, JP;
Shinya Koyama, Tokyo, JP;
Akira Uebayashi, Tokyo, JP;
Hidenori Tanaka, Yokohama, JP;
Takeshi Kawano, Utsunomiya, JP;
Yoshihiko Matsumura, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A vibration wave driving device including a lead-free piezoelectric material that can be driven with high reliability over a wide operating temperature range, an image pickup device including the vibration wave driving device, and an optical apparatus including the vibration wave driving device are provided. The vibration wave driving device generates a vibration wave by applying an AC voltage to a piezoelectric element, and includes the piezoelectric element and a capacitor that satisfy 20[° C.]≦T∈(Cmax)−T∈(Pmax)≦75[° C.] and 0.50≦∈(Cc)/∈(Cmax)≦0.80.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile