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:
May. 15, 2018
Filed:
Dec. 15, 2015
Taiyo Yuden Co., Ltd., Taito-ku, Tokyo, JP;
Yasukazu Tokuhisa, Takasaki, JP;
Takashi Tomita, Takasaki, JP;
Hiroshi Hamada, Takasaki, JP;
Shigeo Ishii, Takasaki, JP;
Yutaka Doshida, Takasaki, JP;
Yoshiyuki Watanabe, Takasaki, JP;
TAIYO YUDEN CO., LTD., Tokyo, JP;
Abstract
A piezoelectric speaker has a piezoelectric element and vibration plate. The piezoelectric element has a base body with a mounting surface, as well as first and second terminals that are formed on the mounting surface with a distance between them. The vibration plate has a conductive body joined to the piezoelectric element and having a principle surface facing the mounting surface, as well as a first hole with or without a bottom which is formed on the principle surface in a region facing the first terminal to form a space between the body and first terminal. The piezoelectric speaker is capable of preventing the external electrodes of the piezoelectric element from shorting to each other.