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. 16, 2014
Filed:
Dec. 26, 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:
Int. Cl.
CPC ...
H04R 25/00 (2006.01); H04R 23/00 (2006.01); B82Y 30/00 (2011.01);
U.S. Cl.
CPC ...
H04R 23/002 (2013.01); B82Y 30/00 (2013.01);
Abstract
A thermoacoustic device includes a sound wave generator and a signal input device. The sound wave generator includes a carbon film. The carbon film includes at least one carbon nanotube layer and at least one graphene layer stacked on each other. The signal input device inputs signals to the sound wave generator.