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.:

US 8389672 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 05, 2013

Filed:

Jan. 19, 2007
Applicant:

Kouichirou Taniguchi, Shiga, JP;

Inventor:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 75/20 (2006.01); C08L 81/06 (2006.01); B32B 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A diaphragm for electro-acoustic transducers, especially a diaphragm for speakers, and a film for the diaphragm excellent in the formability and the durability in high-output operation are obtained. A diaphragm for electro-acoustic transducers formed of a film that contains a polybiphenyl ether sulfone resin (A) having a specific repetitive unit or contains it and a crystalline resin (B) such as polyaryl ketone resin; and a film for use for the diaphragm.


Find Patent Forward Citations

Taniguchi, Kouichirou. (2013). Diaphragm for electro-accoustic transducer (U.S. Patent No. 8389672). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8389672

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…