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Patent Searching and Data


Title:
SPEAKER
Document Type and Number:
Japanese Patent JP3651482
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To improve performance of a speaker and make the speaker lightweight.
SOLUTION: In the speaker, the inner periphery of a suspension holder 25 is linked to a voice coil body 15, the outer periphery of the suspension holder 25 is linked to a frame 19 via a second edge 21, and the inner periphery of a diaphragm 26 is linked to a middle portion of the suspension holder 25. The outer periphery of the diaphragm 26 is then linked to the frame 19 via a first edge 18, and the first and second edges 18, 21 are approximately symmetrically similar on the boundary of the first and second edges 18, 21.


Inventors:
Osamu Funahashi
Application Number:
JP2004218186A
Publication Date:
May 25, 2005
Filing Date:
July 27, 2004
Export Citation:
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Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H04R9/02; H04R7/18; (IPC1-7): H04R9/02; H04R7/18
Domestic Patent References:
JP5199580A
JP8102993A
Attorney, Agent or Firm:
Fumio Iwahashi
Tomoyasu Sakaguchi
Hiroki Naito