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:
Feb. 18, 2020
Filed:
Apr. 20, 2018
Applicant:
Fujifilm Corporation, Tokyo, JP;
Inventor:
Tetsu Miyoshi, Ashigara-kami-gun, JP;
Assignee:
FUJIFILM Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/053 (2006.01); H04R 17/00 (2006.01); G10K 11/178 (2006.01); H04R 3/02 (2006.01); G10K 9/125 (2006.01); B06B 1/06 (2006.01); H01L 41/193 (2006.01); H04R 17/02 (2006.01);
U.S. Cl.
CPC ...
H04R 17/005 (2013.01); B06B 1/0603 (2013.01); B06B 1/0611 (2013.01); G10K 9/125 (2013.01); G10K 11/178 (2013.01); G10K 11/1785 (2018.01); H01L 41/053 (2013.01); H01L 41/193 (2013.01); H04R 3/02 (2013.01); H04R 17/025 (2013.01); G10K 2210/3212 (2013.01); G10K 2210/3226 (2013.01);
Abstract
An electroacoustic transduction film including a polymer composite piezoelectric body in which piezoelectric body particles are dispersed in a viscoelastic matrix formed of a polymer material having viscoelasticity at a normal temperature, and thin film electrodes respectively laminated on both surfaces of the polymer composite piezoelectric body is included, and two or more of the electroacoustic transduction films are laminated, and a gap between the adjacent electroacoustic transduction films is less than or equal to 3 cm.