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Document Number
US Patent 6542615
Issued Date
April 1, 2003
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Abstract
A headphone capable of preventing foreign substances, dust and the like from entering a housing and of enhancing acoustic characteristics in which a hanger of a headband in a housing having a speaker unit is of a storage type and the housing can be swung in a driving direction or a twist direction with respect to the headband, includes an opening provided between the housing and the headband that is blocked by a shielding plate formed on one side of the hanger and a protruded portion formed on the side opposite to the shielding plate.
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Number of Claims:
3
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Owner
Sony Corporation (Tokyo,JP)
Published
April 1, 2003
Application Number
09/615,204
Filed
July 13, 2000
US Classification
381/374   381/370
Int'l Classification
H04R   1/10   (20060101)  
Assistant Examiner
Attorney/Law Firm
Priority Data
Jul 13, 1999 [JP] 11-199198
USPTO Field of Search
381/182   381/370   381/371   381/374   381/370   381/371   381/386   381/FOR   149/   379/430  
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