The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 19, 2007
Filed:
May. 18, 2004
Chung Dam Song, Seoul, KR;
Chung Dam Song, Seoul, KR;
BSE Co., Ltd., , KR;
Abstract
An electret condenser microphone includes a case, a diaphragm electrically connected to the case, a fixed electrode plate disposed opposing the diaphragm with a spacer interposed therebetween, the fixed electrode plate being formed of a metal plate coated with a polymer film on which an electret is formed, an insulating ring for insulating the fixed electrode plate from the case, a printed circuit board (PCB) defining a back chamber with the fixed electrode plate, and an integrated base for supporting the fixed electrode plate and the PCB and electrically connecting the fixed electrode plate to the circuit component embedded in the PCB through a connecting terminal. The integrated base includes a hollow cylindrical insulating body and metal plating layers formed on the top and bottom of the insulating body. Outer diameters of the metal plating layers are less than the insulating body and are electrically connected by a conductor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile