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:
Aug. 14, 2018
Filed:
Oct. 16, 2014
Sony Corporation, Tokyo, JP;
Yoshikazu Ohura, Tokyo, JP;
SONY CORPORATION, Tokyo, JP;
Abstract
An edge surrounding a diaphragm has a recessed portion having a recess in one direction of vibration of the diaphragm, and a projecting portion having a projection in the one direction. At least part of the edge continuously has a first changing shape and a second changing shape. The first changing shape has a shape in which a cross-sectional shape of the recessed portion has a length gradually reduced, a cross-sectional shape of the projecting portion has a length gradually increased, and the recessed portion and the projecting portion change from one to the other, and the second changing shape has a shape in which a cross-sectional shape of the recessed portion has a length gradually increased, a cross-sectional shape of the projecting portion has a length gradually reduced, and the projecting portion and the recessed portion change from one to the other.