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:
Sep. 06, 2016
Filed:
Nov. 29, 2013
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Yohei Jin, Mie, JP;
Yoshimichi Kajihara, Mie, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H04R 7/00 (2006.01); H04R 7/02 (2006.01); H04R 1/00 (2006.01); H04R 7/06 (2006.01); H04R 31/00 (2006.01); H04R 9/06 (2006.01);
U.S. Cl.
CPC ...
H04R 7/02 (2013.01); H04R 1/00 (2013.01); H04R 7/06 (2013.01); H04R 31/003 (2013.01); H04R 9/06 (2013.01); H04R 2307/021 (2013.01); H04R 2307/023 (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); H04R 2499/15 (2013.01);
Abstract
A diaphragm includes a paper layer and a skin layer. The paper layer includes natural fibers and synthetic fibers formed of thermoplastic resin. The paper layer is formed by mixing the natural fibers and the synthetic fibers in water, and thinly spreading a resultant mixture on a mesh. The skin layer is formed on one surface of the paper layer. Note here that the skin layer is formed of the same resin as that of the synthetic fibers.