Title:
EARPHONE
Document Type and Number:
WIPO Patent Application WO/2024/034321
Kind Code:
A1
Abstract:
This earphone comprises: a housing 11 to which a guide tube part 15 for emitting sound to the outside is coupled; fixed poles 17 fixed to the inside of the housing 11; a vibration membrane 21 which is provided to bisect the space inside the housing 11 and vibrates in response to a potential difference generated between the facing fixed poles 17; a support member 27 which supports the vibration membrane 21 so that a portion of the vibration membrane 21 is in contact with the fixed poles 17; and an adjustment hole part 14 which is formed in the housing 11 so as to pass through a wall on a side opposite to the guide tube part 15 when viewed from the vibration membrane 21, and which is for adjusting the pressure inside the housing 11. A membrane-penetrating hole 22 which passes through the vibration membrane 21 is formed in the portion of the vibration membrane 21.
Inventors:
IRII KOICHI (JP)
SANO YUSUKE (JP)
SANO YUSUKE (JP)
Application Number:
PCT/JP2023/025906
Publication Date:
February 15, 2024
Filing Date:
July 13, 2023
Export Citation:
Assignee:
AUDIO TECHNICA KK (JP)
International Classes:
H04R1/10; H04R19/02
Foreign References:
| JP2020098957A | 2020-06-25 | |||
| JP2011049686A | 2011-03-10 | |||
| CN106170106A | 2016-11-30 | |||
| JP2004072368A | 2004-03-04 | |||
| JP2021154436A | 2021-10-07 | |||
| JP2020098957A | 2020-06-25 |
Attorney, Agent or Firm:
IZUMI Michihiro (JP)
Download PDF:
Previous Patent: REFRIGERATION CYCLE DEVICE
Next Patent: ENHANCING AGENT OF CARDIOLIPIN MOLECULAR SPECIES THAT IS MITOCHONDRIAL COMPONENT
Next Patent: ENHANCING AGENT OF CARDIOLIPIN MOLECULAR SPECIES THAT IS MITOCHONDRIAL COMPONENT