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:
Mar. 12, 2019
Filed:
Dec. 21, 2016
Applicant:
Sennheiser Electronic Gmbh & Co. KG, Wedemark, DE;
Inventors:
Jörg Riechers, Wedemark, DE;
Manfred Hibbing, Wedemark, DE;
Assignee:
Sennheiser electronic GmbH & Co. KG, Wedemark, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 19/02 (2006.01); H04R 7/06 (2006.01); H04R 1/10 (2006.01);
U.S. Cl.
CPC ...
H04R 19/02 (2013.01); H04R 7/06 (2013.01); H04R 1/1008 (2013.01);
Abstract
An electrostatic transducer has two oppositely disposed counter-electrodes and a diaphragm which is disposed between the two counter-electrodes and which has a first weakly conductive coating. In its edge region the diaphragm has a second well-conductive coating on the first coating to protect the latter.