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. 25, 2017
Filed:
Oct. 06, 2014
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Yoshimichi Kajihara, Okayama, JP;
Yohei Jin, Mie, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/00 (2006.01); H04R 7/06 (2006.01); H04R 7/12 (2006.01); B32B 29/02 (2006.01); H04R 9/06 (2006.01); H04R 31/00 (2006.01);
U.S. Cl.
CPC ...
H04R 7/06 (2013.01); B32B 29/02 (2013.01); H04R 7/125 (2013.01); H04R 9/06 (2013.01); B32B 2260/021 (2013.01); B32B 2260/046 (2013.01); B32B 2262/103 (2013.01); B32B 2262/106 (2013.01); B32B 2307/51 (2013.01); B32B 2307/54 (2013.01); B32B 2307/7265 (2013.01); B32B 2457/00 (2013.01); H04R 31/003 (2013.01); H04R 2307/025 (2013.01); H04R 2307/027 (2013.01); H04R 2307/029 (2013.01); H04R 2499/11 (2013.01); H04R 2499/13 (2013.01);
Abstract
The diaphragm has a paper base layer and a papermaking layer. The papermaking layer is formed on a surface of the paper base layer. The paper base layer contains natural fibers and thermoplastic resin, and is formed by a papermaking process with a mixture of the natural fibers and the resin. The papermaking layer, contains fibers each having a tensile elastic modulus of 150 GPa or greater, and is formed by a papermaking process with the fibers.