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. 07, 2014
Filed:
Jul. 11, 2013
Applicant:
Feng Chia University, Taichung, TW;
Inventors:
Ju-Liang He, Taichung, TW;
Po-Yu Chen, Taichung, TW;
Assignee:
Feng Chia University, Taichung, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 7/10 (2006.01); H04R 31/00 (2006.01); H04R 7/12 (2006.01);
U.S. Cl.
CPC ...
H04R 31/003 (2013.01); H04R 2307/023 (2013.01); H04R 7/125 (2013.01);
Abstract
A speaker diaphragm structure includes a speaker diaphragm and a coating formed on the speaker diaphragm and is composed of at least one dense layer and relatively porous layer alternately arranged with respect to the at least one dense layer.