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:
Oct. 30, 2018
Filed:
Dec. 04, 2017
Sony Corporation, Tokyo, JP;
Eiji Kuwahara, Tokyo, JP;
Takahiro Suzuki, Saitama, JP;
SONY CORPORATION, Tokyo, JP;
Abstract
There is provided a headphone including: a driver unit including a vibration plate; a housing configured to house the driver unit, to form an air-tightened front air chamber of which a part except for an opening for sound output is spatially blocked from the outside on a front side on which the vibration plate of the driver unit is provided, and to form a rear air chamber that has a predetermined capacity on a rear side that is the opposite side to the front side; and an acoustic tube provided in a partial region of a partition wall of the housing that constitutes the rear air chamber and configured to spatially connect the rear air chamber and the outside of the housing through a tube.