Invention Grant
- Patent Title: Voice coil and speaker
- Patent Title (中): 音圈和扬声器
-
Application No.: US12379059Application Date: 2009-02-11
-
Publication No.: US08165336B2Publication Date: 2012-04-24
- Inventor: Junji Iino , Shinji Kamimura , Satoshi Imamura
- Applicant: Junji Iino , Shinji Kamimura , Satoshi Imamura
- Applicant Address: JP Yokohama
- Assignee: Victor Company of Japan, Limited
- Current Assignee: Victor Company of Japan, Limited
- Current Assignee Address: JP Yokohama
- Agency: The Nath Law Group
- Agent Jerald L. Meyer; Stanley N. Protigal
- Priority: JPP2008-030841 20080212
- Main IPC: H04R9/06
- IPC: H04R9/06
Abstract:
A voice coil includes a cylindrical bobbin formed of a first material; a coil which surrounds on an outer circumferential surface of the bobbin; and a plurality of reinforcement members formed of a material having a propagation speed faster than the first material and provided on the outer circumferential surface of the cylindrical bobbin.
Public/Granted literature
- US20090202100A1 Voice coil and speaker Public/Granted day:2009-08-13
Information query
