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:
Sep. 28, 2021
Filed:
Jun. 19, 2020
Applicant:
Jvckenwood Corporation, Kanagawa, JP;
Inventors:
Yuji Negishi, Yokohama, JP;
Kazuyuki Inagaki, Yokohama, JP;
Assignee:
JVCKENWOOD CORPORATION, Yokohama, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/34 (2006.01); H04R 1/02 (2006.01);
U.S. Cl.
CPC ...
H04R 1/345 (2013.01); H04R 1/02 (2013.01); H04R 2499/13 (2013.01);
Abstract
A speaker includes a vibrating body having an annular valley portion recessed rearward and a diffuser having an annular or arcuate base part, which is positioned so that an end of the base part on the side of the vibrating body is opposed to the valley portion. The base part is provided, at the end on the side of the vibrating body, with one or more recessed parts from which distance to the vibrating body is larger than a distance of the other portion of the end to the vibrating body, each of the recessed parts being formed in any one of a sine-wave shape, a triangular-wave shape and an arc shape.