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. 07, 2006
Filed:
Jul. 22, 2003
Applicant:
Masahito Furuya, Yamanashi-ken, JP;
Inventor:
Masahito Furuya, Yamanashi-ken, JP;
Assignee:
Citizen Electronics Co., Ltd., Yamanashi-ken, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04R 25/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A plurality of grooves are radially formed in an annular frame and an annular plate is secured to the frame to form a sound discharge hole in each groove, thereby communicating a back chamber under a diaphragm with the atmosphere. A projected part is outwardly projected from a peripheral edge of the annular plate, and an adhesive is adhered to a peripheral edge of a protector and to an upper surface of the projected part to adhere the protector with the annular plate.