Title:
Earphone
Document Type and Number:
Japanese Patent JP6136016
Kind Code:
B2
Abstract:
An earphone includes: a loudspeaker unit; a sound conductive tube which is connected to a front surface having a diaphragm included in the loudspeaker unit, and has a hole through which a sound generated from the loudspeaker unit is emitted; a housing which is connected to a back surface of the loudspeaker unit so that a space is formed between the housing and the back surface of the loudspeaker unit, and has a first air hole connecting the space to external air; a first braking part which closes a sound hole of the loudspeaker unit; and a second braking part which closes the first air hole.
Inventors:
Atsushi Sakaguchi
Shuji Saeki
Toshiyuki Matsumura
Kano Sawako
Akiko Fujise
Shuji Saeki
Toshiyuki Matsumura
Kano Sawako
Akiko Fujise
Application Number:
JP2013556262A
Publication Date:
May 31, 2017
Filing Date:
January 29, 2013
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
H04R1/10; H04R1/28; H04R9/02; H04R25/00
Domestic Patent References:
| JP61174290U | ||||
| JP2011082702A | ||||
| JP2010283643A | ||||
| JP2010004513A | ||||
| JP62141293U | ||||
| JP2001025072A | ||||
| JP2011182201A | ||||
| JP11308685A |
Attorney, Agent or Firm:
Patent business corporation Ogasawara patent office