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:
Apr. 14, 2015
Filed:
Jul. 06, 2009
Applicants:
Yohei Jin, Mie, JP;
Yoshimichi Kajihara, Mie, JP;
Shinya Mizone, Mie, JP;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 1/02 (2006.01); H04R 7/12 (2006.01); C08L 67/04 (2006.01); C08L 97/02 (2006.01); H04R 31/00 (2006.01); B29C 45/00 (2006.01); B29L 31/34 (2006.01); C08L 3/02 (2006.01);
U.S. Cl.
CPC ...
H04R 7/12 (2013.01); B29C 45/0005 (2013.01); B29L 2031/3418 (2013.01); C08L 3/02 (2013.01); C08L 67/04 (2013.01); C08L 97/02 (2013.01); C08L 2205/16 (2013.01); H04R 31/003 (2013.01); H04R 2231/001 (2013.01); H04R 2307/021 (2013.01); H04R 2307/025 (2013.01); H04R 2307/029 (2013.01); H04R 2499/11 (2013.01); H04R 2499/13 (2013.01);
Abstract
A speaker diaphragm of the present invention is formed by mixing polylactic acid as a plant-derived resin, bamboo fibers and a natural binder. It is thereby possible to realize a speaker diaphragm capable of obtaining sufficient sound velocity, while having low environmental load and high sound quality.