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:
Jan. 18, 2005
Filed:
Apr. 18, 2002
Applicant:
Toshihiro Ishigaki, Yamagata-ken, JP;
Inventor:
Toshihiro Ishigaki, Yamagata-ken, JP;
Assignees:
Pioneer Corporation, Tokyo, JP;
Tohoku Pioneer Corporation, Yamagata-ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 100 ; H04R 700 ;
U.S. Cl.
CPC ...
Abstract
A speaker edge is molded of a rubber material with 0.1 wt % to 10 wt % short fibers added to the rubber material which ranges from 1.0 mm to 10 mm in length and are resistant to softening by heat, in which the short fibers are oriented to the radial direction of the edge.