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. 28, 2012
Filed:
Dec. 20, 2007
Yoshimichi Kajihara, Osaka, JP;
Shinya Mizone, Mie, JP;
Kazuyoshi Mimura, Mie, JP;
Takashi Sabato, Mie, JP;
Kazuaki Nishimura, Mie, JP;
Yoshimichi Kajihara, Osaka, JP;
Shinya Mizone, Mie, JP;
Kazuyoshi Mimura, Mie, JP;
Takashi Sabato, Mie, JP;
Kazuaki Nishimura, Mie, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A speaker diaphragm is configured by a compound mixed with resin and bamboo fiber. The diaphragm satisfying the advantage of the bamboo fiber of high sound quality and a large degree of freedom in the setting of the characteristic value of the diaphragm and the advantage of the diaphragm made of a resin with improved humidity resistance reliability and strength, excellent external appearance, and enhanced productivity and dimension stability is obtained.