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. 14, 2022
Filed:
Dec. 06, 2017
Applicant:
Sony Corporation, Tokyo, JP;
Inventors:
Koji Nageno, Tokyo, JP;
Kenichi Oide, Tanjung Tokong, MY;
Shinsuke Kanayama, Tanjung Tokong, MY;
Pingwee Chia, Gegulor, MY;
Chinngiap Heng, Simpang Ampat, MY;
Assignee:
SONY CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 1/10 (2006.01); H04R 7/12 (2006.01);
U.S. Cl.
CPC ...
H04R 1/1083 (2013.01); H04R 1/1008 (2013.01); H04R 7/127 (2013.01); H04R 2410/05 (2013.01);
Abstract
There is provided a headphone device including: an external magnet type magnet unit that is disposed outside a voice coil, and vibrates the voice coil; and a diaphragm that is vibrated by vibration of the voice coil, and formed of a material in which a dome section having an outward concave shape on an inner circumference of the voice coil is continuous with an edge section outside the voice coil.