Invention Grant
- Patent Title: Speaker and electronic device using the speaker
- Patent Title (中): 扬声器和电子设备使用扬声器
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Application No.: US13643456Application Date: 2012-02-23
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Publication No.: US08879776B2Publication Date: 2014-11-04
- Inventor: Hiroyuki Takewa , Shinya Kagawa
- Applicant: Hiroyuki Takewa , Shinya Kagawa
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2011-048352 20110304
- International Application: PCT/JP2012/001219 WO 20120223
- International Announcement: WO2012/120806 WO 20120913
- Main IPC: H04R9/06
- IPC: H04R9/06 ; H04R9/04 ; H04R7/12
Abstract:
A speaker (200) includes a cylindrical diaphragm (201) which has closed ends, an edge (202) which supports the diaphragm (201) in a manner which allows the diaphragm to vibrate, a voice coil bobbin (203) around which a voice coil (204) is wound and which is connected to the diaphragm (201), and a magnetic circuit for driving the voice coil (204).
Public/Granted literature
- US20130051603A1 SPEAKER AND ELECTRONIC DEVICE USING THE SPEAKER Public/Granted day:2013-02-28
Information query
