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. 23, 2009
Filed:
Jul. 20, 2007
Satoru Fujiwara, Osaka, JP;
Yuka Nagata, Osaka, JP;
Satoru Fujiwara, Osaka, JP;
Yuka Nagata, Osaka, JP;
Hosiden Corporation, Yao-shi, Osaka, JP;
Abstract
In order to improve the sound pressure level and the sound quality of a piezoelectric electroacoustic transducing device without impairing the size, the productivity, the cost, and the like of the device, the piezoelectric electroacoustic transducing devicehas: a frame; a piezoelectric vibratorin which piezoelectric elementsare bonded to a metal plate; and a support memberwhich supports a peripheral portion of the piezoelectric vibratoron the frame, and which is made of a resin film such as a ring-like PET resin, and a mesh or embossed concave and convex structure is formed on the surface of the support member. While maintaining the external shape of the support member, the support memberis provided with a flexibility at which a large displacement of the piezoelectric vibratoris not impeded.