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:
Jan. 18, 2005
Filed:
Apr. 09, 2003
Applicants:
Atsushi Kuwabara, Yamanashi-ken, JP;
Yoshizumi Ohta, Yamanashi-ken, JP;
Inventors:
Atsushi Kuwabara, Yamanashi-ken, JP;
Yoshizumi Ohta, Yamanashi-ken, JP;
Assignee:
Citizen Electronics Co., Ltd., Yamanashi-ken, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04R 2500 ;
U.S. Cl.
CPC ...
Abstract
A speaker has a frame made of resin, a diaphragm provided in the frame, a voice coil mounted on the diaphragm. A pair of holes are formed under the diaphragm so as to be opened at an underside of the frame. A spring is connecting member provided in each of the holes to be projected from the underside of the frame, and connected to an end of the voice coil.