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:
Apr. 17, 2012
Filed:
Mar. 31, 2006
Toshiyuki Koike, Mie, JP;
Hidekazu Tanaka, Singapore, SG;
Soo Chen Lai, Singapore, SG;
Thomas Chee Wee Leow, Singapore, SG;
Toshiyuki Koike, Mie, JP;
Hidekazu Tanaka, Singapore, SG;
Soo Chen Lai, Singapore, SG;
Thomas Chee Wee Leow, Singapore, SG;
Panasonic Corporation, Osaka, JP;
Abstract
A loudspeaker device includes an enclosure, a loudspeaker unit and a passive radiator both mounted to the enclosure. The passive radiator includes an edge sandwiched and bonded between a first diaphragm and a second diaphragm. This structure allows increasing the bonding strength between the edge and the first diaphragm as well as between the edge and the second diaphragm, so that the loudspeaker device can withstand greater maximum inputs and reproduce quality bass sound.