Invention Grant
- Patent Title: Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker
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Application No.: US13352404Application Date: 2012-01-18
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Publication No.: US08235168B2Publication Date: 2012-08-07
- Inventor: Yoshimichi Kajihara , Shinya Mizone , Kazuyoshi Mimura , Takashi Sabato , Kazuaki Nishimura
- Applicant: Yoshimichi Kajihara , Shinya Mizone , Kazuyoshi Mimura , Takashi Sabato , Kazuaki Nishimura
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: RatnerPrestia
- Priority: JP2006-345487 20061222; JP2006-345488 20061222; JP2006-349171 20061226; JP2007-026728 20070206
- Main IPC: B29C45/00
- IPC: B29C45/00 ; B29C47/00 ; H04R1/00 ; H04R7/00 ; H04R9/06 ; H04R11/02
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.
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