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. 03, 2019
Filed:
Feb. 06, 2018
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventor:
Hidetoshi Hiraoka, Kyoto, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 31/00 (2006.01); H04R 7/18 (2006.01); H04R 7/12 (2006.01); H04R 9/02 (2006.01); H04R 1/28 (2006.01); H04R 9/06 (2006.01);
U.S. Cl.
CPC ...
H04R 31/003 (2013.01); H04R 1/288 (2013.01); H04R 7/127 (2013.01); H04R 7/18 (2013.01); H04R 9/025 (2013.01); H04R 9/06 (2013.01); H04R 2307/023 (2013.01); H04R 2400/11 (2013.01);
Abstract
A loudspeaker diaphragm includes a main material containing molecules each having a hydroxyl group, and a diamondoid derivative. The diamondoid derivative contains molecules each having two or more hydrogen-bonding functional groups. Each of the two or more hydrogen-bonding functional groups in each of the molecules of the diamondoid derivative is bonded to the hydroxyl group in each of the molecules of the main material.