US Patent 7555133 Electro-acoustic transducer
Patent 7555133 was granted and assigned to NEC Corporation on June, 2009 by the United States Patent and Trademark Office.
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Patent abstract
An electro-acoustic transducer includes a first electro-acoustic transduction unit. The first electro-acoustic transduction unit includes an acoustic radiation plate which radiates a sound wave, a bending vibration plate including a vibrator, and a first coupling member which couples an edge portion of the acoustic radiation plate with an edge portion of the bending vibration plate together.
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US Patent 07555133 Electro-acoustic transducer US Patent 7555133 Electro-acoustic transducer
Infobox
Patent Number
0755513300
Patent Number
755513300
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Infobox
Is a
Current Assignee
0
Patent Jurisdiction
Patent Number
075551330
Date of Patent
June 30, 2009
0Patent Application Number
118927460
Date Filed
August 27, 2007
0Official Website
Patent Primary Examiner
Edits on 23 Sep, 2022
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Infobox
Is a
Current Assignee
0
Patent Jurisdiction
Patent Number
075551330
Date of Patent
June 30, 2009
0Patent Application Number
118927460
Date Filed
August 27, 2007
0Official Website
Patent Primary Examiner
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US Patent 07555133 Electro-acoustic transducer
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07555133
Date of patent
June 30, 2009
Patent application number
11892746
Date Filed
August 27, 2007
Patent primary examiner
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