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US 10,567,884 B2Granted
Electroacoustic transducer
AssigneeFUJIFILM Corporation
InventorTetsu Miyoshi
Life of this patent
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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.
Claims17
An electroacoustic transducer comprising:
- 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,
- wherein two or more of the electroacoustic transduction films are laminated,
- principal surfaces of the electroacoustic transduction films adjacent to each other are in contact with each other, and
- the electroacoustic transduction films adjacent to each other and not adhered to each other are capable of vibrating independently of each other.
1 more element
Dependencies are inferred from the claim text.