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Title:
HEADPHONE
Document Type and Number:
WIPO Patent Application WO/2020/189054
Kind Code:
A1
Abstract:
A headphone comprising: a casing in which is formed a hole portion communicating with the inside and the outside; a diaphragm; a support body for supporting the diaphragm; and an air flow passage for air introduced to the inside from the outside of the casing through the hole portion, wherein a plurality of the air flow passages are present and extension directions of the axes that are set on open end surfaces on one sides of the air flow passages are configured to intersect with each other.

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Inventors:
YAMAMOTO ATSUSHI (JP)
KOBAYASHI DAIZEN (JP)
Application Number:
PCT/JP2020/003866
Publication Date:
September 24, 2020
Filing Date:
February 03, 2020
Export Citation:
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Assignee:
SONY CORP (JP)
International Classes:
H04R1/10; G10K11/16; G10K11/178
Domestic Patent References:
WO2017208397A12017-12-07
Foreign References:
JP2011087048A2011-04-28
JP2009218687A2009-09-24
Other References:
See also references of EP 3944631A4
Attorney, Agent or Firm:
SUGIURA, Masatomo et al. (JP)
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