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. 09, 2020
Filed:
Jul. 27, 2017
Applicant:
Yamaha Corporation, Hamamatsu, Shizuoka, JP;
Inventors:
Koji Okazaki, Shizuoka, JP;
Masahiro Tobise, Shizuoka, JP;
Assignee:
YAMAHA CORPORATION, Hamamatsu, Shizuoka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 25/00 (2006.01); H04R 9/06 (2006.01); H04R 9/02 (2006.01); H04R 7/12 (2006.01); H04R 7/18 (2006.01); H04R 9/04 (2006.01); H04R 31/00 (2006.01);
U.S. Cl.
CPC ...
H04R 9/06 (2013.01); H04R 7/127 (2013.01); H04R 7/18 (2013.01); H04R 9/025 (2013.01); H04R 9/045 (2013.01); H04R 7/125 (2013.01); H04R 31/003 (2013.01); H04R 2400/11 (2013.01);
Abstract
A speaker comprising a diaphragm including a first layer defining a coil receiving opening therein, and a second layer attached to the first layer and traversing the coil receiving opening. The speaker further comprises a coil having an end extending into the coil receiving opening and abutting against a surface of the second layer that traverses the coil receiving opening. Thus, transmission efficiency between the coil and diaphragm is improved, which improves the audio quality of the speaker.