- Patent Title: Electroacoustic transduction film and electroacoustic transducer
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Application No.: US15841617Application Date: 2017-12-14
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Publication No.: US10091586B2Publication Date: 2018-10-02
- Inventor: Shin Ozawa , Daisuke Inoue , Tetsu Miyoshi
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFIRM Corporation
- Current Assignee: FUJIFIRM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2015-125724 20150623; JP2016-001287 20160106
- Main IPC: H01L41/09
- IPC: H01L41/09 ; H01L41/047 ; H01L41/18 ; H04R17/00 ; H01L41/053

Abstract:
Provided are an electroacoustic transduction film and an electroacoustic transducer capable of reproducing a sound with a sufficient sound volume and preventing deterioration of appearance. The electroacoustic transduction film includes: 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; a lower thin film electrode laminated on one principal surface of the polymer composite piezoelectric body; a lower protective layer laminated on the lower thin film electrode; an upper thin film electrode formed on the other principal surface of the polymer composite piezoelectric body; an upper protective layer laminated on the upper thin film electrode; and a colored layer laminated on at least one of a surface layer side of the upper thin film electrode and a surface layer side of the lower thin film electrode.
Public/Granted literature
- US20180109880A1 ELECTROACOUSTIC TRANSDUCTION FILM AND ELECTROACOUSTIC TRANSDUCER Public/Granted day:2018-04-19
Information query
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