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. 18, 2012
Filed:
Jan. 18, 2012
Kouzi Sano, Mie, JP;
Masahide Sumiyama, Mie, JP;
Takanori Fukuyama, Mie, JP;
Takeshi Shimokawatoko, Mie, JP;
Kazutaka Kubo, Mie, JP;
Satoshi Itoh, Mie, JP;
Kazuki Honda, Mie, JP;
Kouzi Sano, Mie, JP;
Masahide Sumiyama, Mie, JP;
Takanori Fukuyama, Mie, JP;
Takeshi Shimokawatoko, Mie, JP;
Kazutaka Kubo, Mie, JP;
Satoshi Itoh, Mie, JP;
Kazuki Honda, Mie, JP;
Panasonic Corporation, Osaka, JP;
Abstract
The present invention relates to a loudspeaker in the acoustic field and the information communication field. The invention provides a loudspeaker that can realize a thinner size. To achieve this, the loudspeaker of the present invention is structured so that a part of a diaphragm is inserted to a dent or an opening formed at the center poles of a lower plate of a magnetic circuit. This structure allows the diaphragm to be stored within the height of the magnetic circuit, thus allowing the loudspeaker to have a thinner size.