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:
Jul. 15, 2003
Filed:
Feb. 05, 2002
Applicant:
Inventors:
Toshihide Inoue, Osaka, JP;
Yushi Ono, Osaka, JP;
Assignee:
Onkyo Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10K 1/300 ;
U.S. Cl.
CPC ...
G10K 1/300 ;
Abstract
The speaker diaphragm of the present invention includes a nonwoven fabric impregnated with at least a thermosetting resin composition, molded, and cured. The nonwoven fabric is formed of a fiber material containing protein fibers. The thermosetting resin composition contains an unsaturated polyester resin as a main component. The speaker diaphragm of the present invention has excellent acoustic characteristics and is produced with high production efficiency.