Invention Grant
US09438997B2 Diaphragm, loudspeaker using diaphragm, electronic device and mobile device using loudspeaker, and method for producing diaphragm
有权
隔膜，扬声器使用隔膜，电子设备和使用扬声器的移动设备，以及生产隔膜的方法
- Patent Title: Diaphragm, loudspeaker using diaphragm, electronic device and mobile device using loudspeaker, and method for producing diaphragm
- Patent Title (中): 隔膜，扬声器使用隔膜，电子设备和使用扬声器的移动设备，以及生产隔膜的方法
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Application No.: US14650324Application Date: 2013-11-29
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Publication No.: US09438997B2Publication Date: 2016-09-06
- Inventor: Yohei Jin , Yoshimichi Kajihara
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Panasonic IP Management
- Agent Kerry S. Culpepper
- Priority: JP2012-273169 20121214; JP2012-277786 20121220
- International Application: PCT/JP2013/007018 WO 20131129
- International Announcement: WO2014/091704 WO 20140619
- Main IPC: H04R7/00
- IPC: H04R7/00 ; H04R7/02 ; H04R1/00 ; H04R7/06 ; H04R31/00 ; H04R9/06
Abstract:
A diaphragm includes a paper layer and a skin layer. The paper layer includes natural fibers and synthetic fibers formed of thermoplastic resin. The paper layer is formed by mixing the natural fibers and the synthetic fibers in water, and thinly spreading a resultant mixture on a mesh. The skin layer is formed on one surface of the paper layer. Note here that the skin layer is formed of the same resin as that of the synthetic fibers.
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