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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 9781515 B1

PDFFull Text
Date of Patent:
Oct. 03, 2017

Filed:

Aug. 21, 2015

Loudspeaker diaphragm, and loudspeaker, electronic device and mobile device including the diaphragm

Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Tomonori Shibuya, Okayama, JP;

Yoshiyuki Takahashi, Okayama, JP;

Yoshimichi Kajihara, Okayama, JP;

Tetsushi Itano, Okayama, JP;

Mitsukazu Kuze, Okayama, JP;

Takayuki Dan, Osaka, JP;

Assignee:

PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka, JP;

Attorney:

McDermott Will & Emery LLP

Primary Examiner:

Curtis Kuntz

Assistant Examiner:

Ryan Robinson

Int. Cl.
CPC ...
H04R 1/00 (2006.01); H04R 7/06 (2006.01); H04R 9/06 (2006.01); H04R 7/12 (2006.01); H04R 9/04 (2006.01);
U.S. Cl.
CPC ...
H04R 7/06 (2013.01); H04R 7/125 (2013.01); H04R 9/06 (2013.01); H04R 9/045 (2013.01); H04R 2307/021 (2013.01); H04R 2307/029 (2013.01); H04R 2499/11 (2013.01); Y10S 977/796 (2013.01);
Abstract

A loudspeaker diaphragm includes a base layer and a coating layer. The base layer contains natural fibers. The coating layer is composed of bamboo cellulose nanofibers and is formed at least on the first side of the base layer. The coating layer has a thickness in the range of 3% to 15%, both inclusive of the sum of the thicknesses of the base layer and the coating layer.

Find Patent Forward Citations

Shibuya, Tomonori. (2017). Loudspeaker diaphragm, and loudspeaker, electronic device and mobile device including the diaphragm (U.S. Patent No. 9781515). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9781515

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

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