发明公开
- 专利标题: Electromagnetic sound generator
- 专利标题(中): 电磁声发生器
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申请号: EP01108532.1申请日: 2001-04-04
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公开(公告)号: EP1146773A2公开(公告)日: 2001-10-17
- 发明人: Kuwabara, Atsushi , Asahina, Masato
- 申请人: Citizen Electronics Co., Ltd.
- 申请人地址: 1-23-1, Kamikurechi Fujiyoshida-shi, Yamanashi-ken JP
- 专利权人: Citizen Electronics Co., Ltd.
- 当前专利权人: Citizen Electronics Co., Ltd.
- 当前专利权人地址: 1-23-1, Kamikurechi Fujiyoshida-shi, Yamanashi-ken JP
- 代理机构: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät
- 优先权: JP2000108686 20000410
- 主分类号: H04R11/02
- IPC分类号: H04R11/02
摘要:
An electromagnetic sound generator has a vibrating plate mounted in a case. An armature is secured on the vibrating plate at a central portion thereof. The armature has a concave spherical shape.
公开/授权文献
- EP1146773A3 Electromagnetic sound generator 公开/授权日:2006-10-18
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