Title:
BONE CONDUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/153915
Kind Code:
A1
Abstract:
A bone conduction device 1 comprises mainly a magnet unit 2, a coil 7, a case 9, a vibrating plate 11, and the like. The bone conduction device 1 is provided with the magnet unit 2, the coil 7 which is disposed around the magnet unit 2, the case 9 which houses the magnet unit 2 and the coil 7, and the vibrating plate 11 which is fixed to the case 9 and which is disposed so as to be able to vibrate in the axial direction of the coil 9. In the magnet unit 2, a first magnet 3 and a second magnet 5 are disposed separately and such that identical polarities face each other, and a first yoke 13 is disposed between the magnet 3 and the magnet 5.
Inventors:
SHA HATAAKI (JP)
NAKAJIMA TOSHIO (JP)
NAKAJIMA TOSHIO (JP)
Application Number:
PCT/JP2022/000197
Publication Date:
July 21, 2022
Filing Date:
January 06, 2022
Export Citation:
Assignee:
BOCO INC (JP)
International Classes:
H04R1/00; H04R9/02; H04R13/00
Domestic Patent References:
| WO2019134162A1 | 2019-07-11 |
Foreign References:
| KR20090082999A | 2009-08-03 | |||
| JPS61128894U | 1986-08-12 |
Attorney, Agent or Firm:
INOUE, Seiichi (JP)
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