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. 28, 2022
Filed:
Dec. 30, 2020
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Inventors:
Assignee:
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B06B 1/06 (2006.01); G02B 7/02 (2021.01); G03B 17/02 (2021.01); B06B 1/02 (2006.01); H04N 5/225 (2006.01); H01L 41/09 (2006.01); G03B 17/56 (2021.01);
U.S. Cl.
CPC ...
B06B 1/0655 (2013.01); B06B 1/0207 (2013.01); G02B 7/02 (2013.01); G03B 17/02 (2013.01); G03B 17/56 (2013.01); H01L 41/0926 (2013.01); H04N 5/2251 (2013.01);
Abstract
A vibration device includes a protective cover, a first cylindrical body, a plate spring, a second cylindrical body, a piezoelectric element, and a vibrating plate. The vibration device further includes a non-equilibrium structure that removes a mass of a portion of or adds a mass to at least one of the protective cover, the first cylindrical body, the plate spring, the second cylindrical body, and the vibrating plate.