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:
Feb. 15, 2022
Filed:
Nov. 20, 2018
Nitto Denko Corporation, Ibaraki, JP;
Yusuke Komoto, Osaka, JP;
Tomoaki Hishiki, Osaka, JP;
Kohei Oto, Osaka, JP;
Saori Yamamoto, Osaka, JP;
Yuka Sekiguchi, Osaka, JP;
NITTO DENKO CORPORATION, Osaka, JP;
Abstract
A piezoelectric speaker-forming laminate () includes: a piezoelectric film (); a pressure-sensitive adhesive face (); an interposed layer () being a porous body layer and/or a resin layer disposed between the piezoelectric film () and the pressure-sensitive adhesive face (); and a release layer () joined to the pressure-sensitive adhesive face (). The pressure-sensitive adhesive face () is disposed in such a manner that at least a portion of the piezoelectric film () overlaps the pressure-sensitive adhesive face () when the piezoelectric film () is viewed in plan. The piezoelectric film () and the interposed layer () are allowed to be fixed to a support () as a piezoelectric speaker or a portion of a piezoelectric speaker by sticking the pressure-sensitive adhesive face () from which the release layer () has been removed to the support ().