公开(公告)号：US10091586B2

公开(公告)日：2018-10-02

申请号：US15841617

申请日：2017-12-14

Applicant: FUJIFILM Corporation

Inventor： Shin Ozawa ,  Daisuke Inoue ,  Tetsu Miyoshi

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.

公开(公告)号：US12026330B2

公开(公告)日：2024-07-02

申请号：US17412711

申请日：2021-08-26

Applicant: FUJIFILM Corporation

Inventor： Daisuke Inoue

IPC: G06F3/041 ,  B32B17/10 ,  C03C17/38

CPC classification number: G06F3/041 ,  B32B17/10 ,  C03C17/38 ,  C03C2217/253 ,  C03C2217/26 ,  C03C2218/114 ,  C03C2218/156 ,  G06F2203/04103

Abstract: A conductive laminate includes a first organic film, a fine metal wire arranged on the first organic film, and a second organic film arranged to cover the fine metal wire, in which the fine metal wire includes a blackening layer, an intimate attachment layer, and a metal conductive layer in order from a side of the first organic film, and moisture contents of the first organic film and the second organic film are less than 3.00%.

公开(公告)号：US10341774B2

公开(公告)日：2019-07-02

申请号：US15948019

申请日：2018-04-09

Applicant: FUJIFILM Corporation

Inventor： Daisuke Inoue ,  Tetsu Miyoshi ,  Shin Ozawa

IPC: H04R5/02 ,  B06B1/06 ,  H04R17/00 ,  H04R7/06

Abstract: Provided is a video audio system including electroacoustic conversion units which include an electroacoustic conversion film having a macromolecular composite piezoelectric body formed by dispersing piezoelectric body particles in a viscoelastic matrix formed of a macromolecular material that is viscoelastic at normal temperature and thin film electrodes respectively laminated on both surfaces of the macromolecular composite piezoelectric body, curve and support the electroacoustic conversion film, and use at least a part of the electroacoustic conversion film as vibration regions and a display device which is a screen or a video display device to which videos are projected, in which at least one of the electroacoustic conversion units is disposed on a rear surface opposite to a surface of the display device on which videos are displayed, the plurality of vibration regions is arranged on the entire rear surface of the display device, and location information of the vibration regions is included in sound data that are input to the electroacoustic conversion units.

公开(公告)号：US10038134B2

公开(公告)日：2018-07-31

申请号：US15663058

申请日：2017-07-28

Applicant: FUJIFILM Corporation

Inventor： Daisuke Inoue ,  Tetsu Miyoshi

IPC: H01L41/18 ,  H04R17/00 ,  H04R31/00 ,  H04R7/04 ,  H01L41/257 ,  H01L41/37

CPC classification number: H01L41/183 ,  H01L41/047 ,  H01L41/193 ,  H01L41/257 ,  H01L41/37 ,  H04R7/04 ,  H04R17/005 ,  H04R17/025 ,  H04R31/003 ,  H04R2217/01 ,  H04R2307/025 ,  H04R2499/11

Abstract: Provided are an electroacoustic transduction film in which conversion between a vibration and a voltage is able to be appropriately performed without the occurrence of dielectric breakdown of the air between upper and lower thin film electrodes even when a high voltage is applied therebetween, a user is able to be prevented from coming into contact with a piezoelectric layer, and high productivity is achieved, and a manufacturing method of an electroacoustic transduction film. A piezoelectric layer which stretches and contracts in response to a state of an electric field, an upper thin film electrode formed on one principal surface of the piezoelectric layer, a lower thin film electrode formed on the other principal surface of the piezoelectric layer, an upper protective layer formed on the upper thin film electrode, and a lower protective layer formed on the lower thin film electrode are included, and a groove which penetrates the thin film electrode and the protective layer is formed in at least a portion of an outer peripheral portion in a surface direction of at least one of the upper thin film electrode and the upper protective layer, or the lower thin film electrode and the lower protective layer.