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:
Dec. 07, 2010
Filed:
Oct. 28, 2008
Koichi Sadaie, Neyagawa, JP;
Hiroyasu Kumo, Neyagawa, JP;
Yoshihide Toyoshima, Neyagawa, JP;
Satofumi Nagaoka, Neyagawa, JP;
Yoshinori Ujimoto, Neyagawa, JP;
Kouichi Abe, Neyagawa, JP;
Koichi Sadaie, Neyagawa, JP;
Hiroyasu Kumo, Neyagawa, JP;
Yoshihide Toyoshima, Neyagawa, JP;
Satofumi Nagaoka, Neyagawa, JP;
Yoshinori Ujimoto, Neyagawa, JP;
Kouichi Abe, Neyagawa, JP;
Onkyo Corporation, Neyagawa-shi, JP;
Abstract
A voice coil assembly capable of realizing a flat thin loudspeaker having a high efficiency, reduced divided vibrations, a flat frequency response, and reduced operation defects. The voice coil assembly includes a plurality of internal-winding voice coils, each including a rectangular bobbin having a rectangular cross section and defining a rectangular space therein and an internal rectangular coil fixed to an inner wall surface of the rectangular bobbin defining the rectangular space, wherein an outer wall surface of the rectangular bobbin of one internal-winding voice coil is adhered and fixed to an outer wall surface of the rectangular bobbin of another internal-winding voice coil.