公开(公告)号：US09635467B2

公开(公告)日：2017-04-25

申请号：US14858734

申请日：2015-09-18

Applicant: FUJIFILM Corporation

Inventor： Tetsu Miyoshi ,  Yusuke Hatanaka ,  Akito Fukunaga

IPC: H04R25/00 ,  H04R17/00 ,  H01L41/18 ,  B06B1/06 ,  G10K11/00 ,  H04R17/02

CPC classification number: H04R17/005 ,  B06B1/0662 ,  B06B1/0688 ,  G10K11/004 ,  H01L41/183 ,  H04R17/025 ,  H04R2400/00 ,  H04R2499/11

Abstract: Provided is an electroacoustic converter film including thin film electrodes provided on both surfaces of a polymeric composite piezoelectric body in which piezoelectric body particles are dispersed in a viscoelastic matrix formed of a polymer material that exhibits viscoelasticity at normal temperature, and protective layers formed on the thin film electrodes. The electroacoustic converter film further includes electrode lead-out metal foils laminated on the thin film electrodes, and the electrode lead-out metal foils allows connection to wiring through soldering when electrodes are led out from the thin film electrodes.