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:
Sep. 10, 2019
Filed:
Jul. 05, 2017
Applicant:
Taiyo Yuden Co., Ltd., Chuo-ku, Tokyo, JP;
Inventors:
Shigeo Ishii, Takasaki, JP;
Takashi Tomita, Takasaki, JP;
Hiroshi Hamada, Takasaki, JP;
Yutaka Doshida, Takasaki, JP;
Assignee:
TAIYO YUDEN CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 17/00 (2006.01); H04R 1/28 (2006.01); H04R 7/04 (2006.01); H04R 7/18 (2006.01);
U.S. Cl.
CPC ...
H04R 17/00 (2013.01); H04R 1/2857 (2013.01); H04R 7/04 (2013.01); H04R 7/18 (2013.01);
Abstract
An electroacoustic transducer that can improve acoustic characteristics has a housing and a piezoelectric speaker. The piezoelectric speaker has a first vibration plate with a periphery part supported directly or indirectly on the housing, as well as a piezoelectric element placed at least on one side of the first vibration plate, and is constituted in such a way that its rigidity is asymmetric with respect to the center axis of the first vibration plate.