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. 08, 2014
Filed:
Dec. 24, 2010
Applicants:
Yoshimichi Kajihara, Mie, JP;
Yohei Jin, Mie, JP;
Toru Fujii, Shiga, JP;
Inventors:
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 1/00 (2006.01); H04R 31/00 (2006.01); H04R 7/12 (2006.01);
U.S. Cl.
CPC ...
H04R 31/003 (2013.01); H04R 2400/11 (2013.01); H04R 2499/15 (2013.01); H04R 2307/021 (2013.01); H04R 2231/001 (2013.01); H04R 2307/029 (2013.01); H04R 2499/13 (2013.01); H04R 2307/023 (2013.01); H04R 2307/025 (2013.01); H04R 7/122 (2013.01);
Abstract
Each of a speaker diaphragm, a dust cap, and a frame includes a resin and a plant opal that is extracted from a bamboo leaf, and is formed by injection molding or sheet molding. The configuration can enhance stiffness of each of the diaphragm, the dust cap, and the frame and implement high performance.