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. 09, 2010
Filed:
Dec. 06, 2005
Applicant:
Satofumi Nagaoka, Neyagawa, JP;
Inventor:
Satofumi Nagaoka, Neyagawa, JP;
Assignee:
Onkyo Corporation, Neyagawa-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 25/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electrodynamic loudspeakerincludes a magnetic circuitand a vibrator. The magnetic circuitincludes a magnetand polesandadhering to the magnet. The vibratorincludes a coil bobbinand voice coilsandwound around and fixed to a portion of the coil bobbinfacing the polesand. A magnetic memberis fixed to the coil bobbinof the vibratorat a position spaced apart from the voice coilsand. The magnetic memberis fixed at a position on the coil bobbinso as to extend over an area facing the magnetof the magnetic circuit