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:
Aug. 16, 2005
Filed:
Oct. 10, 2001
Applicants:
Yasuhisa Abe, Tendo, JP;
Takashi Suzuki, Tendo, JP;
Koji Matsumoto, Tendo, JP;
Koji Takayama, Tendo, JP;
Inventors:
Yasuhisa Abe, Tendo, JP;
Takashi Suzuki, Tendo, JP;
Koji Matsumoto, Tendo, JP;
Koji Takayama, Tendo, JP;
Assignees:
Pioneer Corporation, Tokyo, JP;
Tohoku Pioneer Corporation, Yamagata-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10K013/00 ;
U.S. Cl.
CPC ...
Abstract
A speaker diaphragm that has a high heat-radiation efficiency. The speaker diaphragm includes a diaphragm main body made from a resin, and a metallic plate adhered to a major acoustic surface of the diaphragm main body adjacent a voice coil bobbin. The voice coil bobbin is attached to the diaphragm man body.