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:
May. 09, 1989
Filed:
Sep. 14, 1987
Applicant:
Inventor:
Akira Hayashi, Nakano-ku, Tokyo, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428246 ; 428113 ; 428251 ; 428252 ; 428257 ; 428258 ; 428259 ;
Abstract
A diaphragm for producing sound includes at least one layer of a union fabric woven from a plurality of yarn filaments of plural kinds. The plural kinds of the yarn filaments have elongations different from each other. The plural kinds of te yarn filaments are arranged in a predetermined regular order in both warp and weft directions.