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:
Aug. 01, 2017
Filed:
Feb. 25, 2015
Applicant:
Omron Corporation, Kyoto, JP;
Inventor:
Yuki Uchida, Shiga, JP;
Assignee:
OMRON Corporation, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 31/00 (2006.01); H04R 19/00 (2006.01);
U.S. Cl.
CPC ...
H04R 31/00 (2013.01); H04R 19/005 (2013.01);
Abstract
An acoustic transducer has a back plate having a fixed electrode, a diaphragm that is opposed to the back plate with a gap interposed therebetween and that serves as a movable electrode, and a stopper protruding from a face of the back plate or the diaphragm, which is on a side of the gap. The stopper includes a conductive section electrically isolated from the fixed electrode and the movable electrode. The conductive section comes in contact with a front face of the fixed electrode or the movable electrode opposed to the stopper through deformation of the diaphragm.