Title:
HEARING DEVICE, AND METHOD FOR MANUFACTURING HEARING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/210728
Kind Code:
A1
Abstract:
A hearing device (1) can be disposed inside the body of a mammal. The hearing device (1) comprises a piezoelectric film (60), a plurality of recognition electrodes (30), an electrode layer (50), a substrate (20), and a surface layer (10). The piezoelectric film (60) converts oscillation into an electrical signal. The plurality of recognition electrodes (30) contact the piezoelectric film (60) on one side of a thickness direction (D2) of the piezoelectric film (60). The electrode layer (50) contacts the piezoelectric film (60) on another side of the thickness direction (D2) of the piezoelectric film (60). The substrate (20) has a long hole (21) and supports the piezoelectric film (60) with the electrode layer (50) interposed therebetween. The surface layer (10) covers the piezoelectric film (60) from the side opposite the electrode layer (50) and exposes at least a portion of each of the plurality of recognition electrodes (30). A width (w1) of the long hole (21) at one end in an extension direction (D1) is smaller than a width (w2) of the long hole (21) at another end in the extension direction (D1).
Inventors:
YAMAZAKI HIROKI (JP)
KAWANO SATOYUKI (JP)
KAWANO SATOYUKI (JP)
Application Number:
PCT/JP2023/016590
Publication Date:
November 02, 2023
Filing Date:
April 27, 2023
Export Citation:
Assignee:
UNIV OSAKA (JP)
International Classes:
A61N1/36; A61F2/18; A61F11/00; H04R17/02; H04R25/00
Foreign References:
| US20210409871A1 | 2021-12-30 | |||
| KR20160051960A | 2016-05-12 | |||
| KR101393186B1 | 2014-05-08 |
Attorney, Agent or Firm:
MAEI Hiroyuki (JP)
Download PDF:
Previous Patent: SEMICONDUCTOR DEVICE
Next Patent: METHOD FOR PRODUCING 3-CHLORO-1,1,1,5,5,5-HEXAFLUORO-2-PENTENE
Next Patent: METHOD FOR PRODUCING 3-CHLORO-1,1,1,5,5,5-HEXAFLUORO-2-PENTENE