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:
Feb. 03, 2015
Filed:
Jul. 30, 2012
Applicants:
Yuusuke Oosato, Tokyo, JP;
Koji Nageno, Tokyo, JP;
Takahiro Suzuki, Saitama, JP;
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 25/00 (2006.01); H04R 1/10 (2006.01); H04R 1/26 (2006.01); H04R 1/28 (2006.01); H04R 11/02 (2006.01);
U.S. Cl.
CPC ...
H04R 1/1075 (2013.01); H04R 1/1016 (2013.01); H04R 1/26 (2013.01); H04R 1/2849 (2013.01); H04R 11/02 (2013.01); H04R 2205/022 (2013.01);
Abstract
Provided is a driver unit including an acoustic conversion unit; and a housing body in which the acoustic conversion unit is housed, and in which an opening is formed. The acoustic conversion unit includes a pair of magnets arranged to face each other, a coil to which an input signal is supplied, an armature at which a vibrating part passing through the coil and arranged between the pair of magnets is formed, and a vibrating plate connected to the armature. A size of the opening is larger than 40 μm and smaller than 100 μm.