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:
Dec. 02, 2014
Filed:
Dec. 26, 2010
Applicants:
Wen-zhen LI, Beijing, CN;
Hwang-miaw Chen, Taipei Hsien, TW;
Inventors:
Wen-Zhen Li, Beijing, CN;
Hwang-Miaw Chen, Taipei Hsien, TW;
Assignees:
Tsinghua University, Beijing, CN;
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 1/02 (2006.01); C22C 1/00 (2006.01); C22C 1/10 (2006.01); C22C 23/00 (2006.01); C22C 23/02 (2006.01); C22C 47/08 (2006.01); C22C 49/04 (2006.01); C22C 49/14 (2006.01); A47B 81/06 (2006.01);
U.S. Cl.
CPC ...
C22C 1/005 (2013.01); C22C 1/1036 (2013.01); C22C 23/00 (2013.01); C22C 23/02 (2013.01); C22C 47/08 (2013.01); C22C 49/04 (2013.01); C22C 49/14 (2013.01); B22F 2998/00 (2013.01);
Abstract
The present disclosure relates to an acoustic device. The acoustic device includes an enclosure and a speaker enclosed by the enclosure. The enclosure includes a magnesium based composite material. The magnesium based composite material includes a magnesium based metal matrix and nanoparticles dispersed therein. The present disclosure also relates to an earphone.