Invention Grant
US08442261B2 Diaphragm including a first vibrating part of a dome shape or flat shape and a second vibrating part of an annular shape and a loudspeaker using the diaphragm
失效
隔膜包括圆顶形状或平坦形状的第一振动部分和环形的第二振动部分，以及使用该隔膜的扬声器
- Patent Title: Diaphragm including a first vibrating part of a dome shape or flat shape and a second vibrating part of an annular shape and a loudspeaker using the diaphragm
- Patent Title (中): 隔膜包括圆顶形状或平坦形状的第一振动部分和环形的第二振动部分，以及使用该隔膜的扬声器
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Application No.: US12464264Application Date: 2009-05-12
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Publication No.: US08442261B2Publication Date: 2013-05-14
- Inventor: Tomohiko Kamimura , Hideo Yuasa , Masahito Ikeda
- Applicant: Tomohiko Kamimura , Hideo Yuasa , Masahito Ikeda
- Applicant Address: JP Yao-shi
- Assignee: Hosiden Corporation
- Current Assignee: Hosiden Corporation
- Current Assignee Address: JP Yao-shi
- Agency: Kratz, Quintos & Hanson, LLP
- Priority: JP2008-146973 20080604
- Main IPC: H04R7/06
- IPC: H04R7/06
Abstract:
The present invention provides a dome-shaped diaphragm fabricated based on a film base of polyethylene terephthalate resin film. The diaphragm includes a first vibrating part of a dome shape or a flat shape, and a second vibrating part of an annular shape. The second vibrating part includes a peripheral portion of the film base provided around a central portion of the film base. The first vibrating part includes the central portion of the film base, a thermosensitive adhesive resin film, provided on the central portion, and a fiber sheet made of a woven fabric using carbon fiber or an embossed nonwoven fabric. The fiber sheet is layered over the central portion with the thermosensitive adhesive resin film interposed therebetween.
Public/Granted literature
- US20090304225A1 DOME-SHAPED DIAPHRAGM AND LOUDSPEAKER USING THE SAME Public/Granted day:2009-12-10
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