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:
Oct. 25, 2005
Filed:
Jul. 14, 2003
Applicants:
Osamu Takahashi, Yamagata, JP;
Ryo Ishiyama, Yamagata, JP;
Inventors:
Osamu Takahashi, Yamagata, JP;
Ryo Ishiyama, Yamagata, JP;
Assignees:
Pioneer Corporation, Tokyo, JP;
Tohoku Pioneer Corporation, Yamagata, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10K013/00 ; H04R007/16 ; H04R007/14 ; H04R009/04 ;
U.S. Cl.
CPC ...
Abstract
The speaker has a diaphragm main bodysupported resiliently on a framevia an edge portionaround its outer circumference, and the groove ribsintegrally formed in the edge portion, wherein a regulation memberfor partially improving a flexural strength of the edge portionis provided on a part of the front or back face of the edge portion