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. 19, 2011
Filed:
Nov. 20, 2006
Applicants:
Kunihiko Tokura, Tokyo, JP;
Masaru Uryu, Chiba, JP;
Toru Takebe, Tokyo, JP;
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 7/00 (2006.01); H04R 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is provided an acoustic diaphragm used for a loudspeaker, having an injection-molded edge molded using a thermoplastic elastomer, in which the edge is formed using a workable polyolefinic elastomer, as a material, containing a soft segment having rubber particles of 1 μm to 10 μm in diameter uniformly dispersed therein, and a hard segment composed of an olefinic resin, and the edge is formed into a shape allowing the resin to be aligned as being not causative of anisotropy in the physical characteristics of the edge, as a result of thin-wall molding by the injection molding.