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:
Jun. 15, 2021
Filed:
Apr. 24, 2018
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Miki Ueda, Tokyo, JP;
Tatsuo Furuta, Machida, JP;
Takayuki Watanabe, Yokohama, JP;
Shinya Koyama, Tokyo, JP;
Jumpei Hayashi, Yokohama, JP;
Makoto Kubota, Yokohama, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02N 2/02 (2006.01); H01L 41/09 (2006.01); H01L 41/047 (2006.01); G03B 13/32 (2021.01); H01L 41/187 (2006.01); H01L 41/053 (2006.01); G03B 3/10 (2021.01); H02N 2/00 (2006.01);
U.S. Cl.
CPC ...
H02N 2/026 (2013.01); G03B 3/10 (2013.01); G03B 13/32 (2013.01); H01L 41/0477 (2013.01); H01L 41/053 (2013.01); H01L 41/0973 (2013.01); H01L 41/1871 (2013.01); H02N 2/0015 (2013.01); G03B 2205/0061 (2013.01);
Abstract
A vibrator which is constructed by bonding a piezoelectric element and an elastic body together via a bonding layer. The piezoelectric element has a piezoelectric ceramic and electrodes. The bonding layer has an unbonded region that is located close to a nodal line of a vibration in a primary out-of-plane vibration mode when the vibration is excited in the vibrator, and in the unbonded region, the piezoelectric element and the elastic body are not bonded together.