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:
Mar. 16, 2021
Filed:
Jun. 13, 2017
Dai-ichi Seiko Co., Ltd., Kyoto, JP;
DAI-ICHI SEIKO CO., LTD., Kyoto, JP;
Abstract
An oscillator () for warping to oscillate due to expansion and contraction of a piezoelectric layer, having a tabular shape and including a substrate and the piezoelectric layer layered on the substrate. A casing () has an internal space (C) accommodating the oscillator () and a fixing section (D) fixing the circumferential edge of the oscillator (). The casing () is conductive of oscillations transmitted from the oscillator () via the fixing section (D) to the outside. A signal input unit () receives an audio voltage signal input from a smartphone and applies the signal to the piezoelectric layer. The oscillator () has a main surface (A) having an entire width Wlonger than the entire width of the fixing section (D) in a direction orthogonal to a direction from the fixing section (D) to the center of the oscillator ().