Title:
LOUDSPEAKER AND AV EQUIPMENT
Document Type and Number:
Japanese Patent JP2015144415
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a loudspeaker capable of preventing deterioration in low-pass characteristics caused by a damper added.SOLUTION: The loudspeaker includes: a diaphragm (104); and a magnetic circuit. The magnetic circuit is formed with plural acoustic paths communicating a space formed at the magnetic circuit side of the diaphragm (104) with a space out of loudspeaker. The plural acoustic path includes: first acoustic paths (108a and 108c); and a second acoustic path (108b) which has an acoustic impedance different from the first acoustic paths (108a and 108c).
Inventors:
SAKAGUCHI ATSUSHI
SAEKI SHUJI
MATSUMURA TOSHIYUKI
SAEKI SHUJI
MATSUMURA TOSHIYUKI
Application Number:
JP2014185194A
Publication Date:
August 06, 2015
Filing Date:
September 11, 2014
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
H04R9/02; H04R7/04; H04R9/00
Domestic Patent References:
| JP2001258093A | 2001-09-21 | |||
| JPS5518872U | 1980-02-06 | |||
| JPS6312990U | 1988-01-28 | |||
| JP2001258093A | 2001-09-21 | |||
| JPS5518872U | 1980-02-06 | |||
| JPS6312990U | 1988-01-28 | |||
| JPS6268390U | 1987-04-28 | |||
| JPS6268390U | 1987-04-28 |
Attorney, Agent or Firm:
Patent business corporation Ogasawara patent office
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