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:
Jan. 17, 2023
Filed:
Feb. 15, 2019
Applicant:
Taiyo Yuden Co., Ltd., Tokyo, JP;
Inventors:
Hiroshi Hamada, Takasaki, JP;
Yukihiro Matsui, Takasaki, JP;
Fumihisa Ito, Takasaki, JP;
Takashi Tomita, Takasaki, JP;
Assignee:
TAIYO YUDEN CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/09 (2006.01); H01L 41/27 (2013.01); H01L 41/047 (2006.01);
U.S. Cl.
CPC ...
H01L 41/0926 (2013.01); H01L 41/0471 (2013.01); H01L 41/0472 (2013.01); H01L 41/27 (2013.01);
Abstract
A vibration generating deviceincludes: a diaphragm; and a first piezoelectric actuatorand a second piezoelectric actuatorattached on an upper surfaceand a lower surfaceof the diaphragm, respectively, so as to sandwich the diaphragm 11 therebetween in a vicinity of an end surface of the diaphragm, wherein, in a top view of the upper surfaceof the diaphragm, the first piezoelectric actuatoris disposed at a position shifted with respect to the second piezoelectric actuator