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:
May. 12, 2015
Filed:
Feb. 19, 2010
Applicants:
Tetsuo Mitani, Chiyoda-ku, JP;
Osamu Murakami, Chiyoda-ku, JP;
Masashi Hara, Chiyoda-ku, JP;
Akihiro Fujita, Chiyoda-ku, JP;
Inventors:
Tetsuo Mitani, Chiyoda-ku, JP;
Osamu Murakami, Chiyoda-ku, JP;
Masashi Hara, Chiyoda-ku, JP;
Akihiro Fujita, Chiyoda-ku, JP;
Assignee:
Mitsubishi Electric Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G10K 13/00 (2006.01); H04R 7/12 (2006.01); H04R 31/00 (2006.01);
U.S. Cl.
CPC ...
H04R 7/127 (2013.01); H04R 31/003 (2013.01); H04R 2231/001 (2013.01); H04R 2307/025 (2013.01); H04R 2307/029 (2013.01);
Abstract
A speaker diaphragm contains a material obtained by adding a cycloolefin polymer resin to a carbon fiber-reinforced liquid crystal polymer. The speaker diaphragm having high sound velocity, a speaker, and a production method of the speaker diaphragm can thereby be obtained.