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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
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.