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:
Feb. 14, 2023
Filed:
Mar. 24, 2021
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Tetsuya Koyanagi, Osaka, JP;
Tetsushi Itano, Osaka, JP;
Kazuaki Nishimura, Okayama, JP;
Makoto Kurozawa, Mie, JP;
Ryouichi Uemoto, Osaka, JP;
Hiroki Sano, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 7/12 (2006.01); H04R 7/20 (2006.01); H04R 31/00 (2006.01);
U.S. Cl.
CPC ...
H04R 7/12 (2013.01); H04R 7/20 (2013.01); H04R 31/003 (2013.01); H04R 2307/00 (2013.01); H04R 2307/204 (2013.01); H04R 2499/13 (2013.01);
Abstract
A speaker diaphragm includes an edge formed from an elastomer, and a diaphragm body that is to be joined to the edge. A joint between the edge and the diaphragm body includes a melting portion between the edge and the diaphragm body.