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:
Sep. 23, 2014
Filed:
Dec. 28, 2011
Applicants:
Kai-li Jiang, Beijing, CN;
Xiao-yang Lin, Beijing, CN;
Lin Xiao, Beijing, CN;
Shou-shan Fan, Beijing, CN;
Inventors:
Kai-Li Jiang, Beijing, CN;
Xiao-Yang Lin, Beijing, CN;
Lin Xiao, Beijing, CN;
Shou-Shan Fan, Beijing, CN;
Assignees:
Tsinghua University, Beijing, CN;
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 25/00 (2006.01); H04R 23/00 (2006.01);
U.S. Cl.
CPC ...
H04R 23/002 (2013.01);
Abstract
A thermoacoustic device includes a sound wave generator and a signal input device. The sound wave generator includes a composite structure. The composite structure includes a carbon nanotube film structure and a graphene film. The carbon nanotube film structure includes a number of carbon nanotubes and micropores. The graphene film is located on a surface of the carbon nanotube film structure, and covers the micropores.