发明授权
- 专利标题： Voice coil motors and magnetic circuits therefor
- 专利标题（中）： 音圈电机及其磁路
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申请号： US12051700申请日： 2008-03-19
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公开(公告)号： US08194358B2公开(公告)日： 2012-06-05
- 发明人: Hiroyuki Yamada , Daiki Kato , Keiji Nagamiya
- 申请人： Hiroyuki Yamada , Daiki Kato , Keiji Nagamiya
- 申请人地址： JP Tokyo
- 专利权人： Shin-Etsu Chemical Co., Ltd.
- 当前专利权人： Shin-Etsu Chemical Co., Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Birch, Stewart, Kolasch & Birch, LLP
- 优先权： JP2007-072789 20070320
- 主分类号： G11B5/55
- IPC分类号： G11B5/55 ; G11B21/08 ; G11B5/56 ; G11B21/24
摘要：
A magnet of rectangular prism or parallelepiped prism shape is disposed on a yoke having a triangle shape or a frusto-triangular shape to construct a magnetic circuit for a voice coil motor. The magnetic circuits facilitate positioning and holding of a moving coil, and the voice coil motor is improved in positioning precision of a magnetic head.
公开/授权文献
- US20080231997A1 VOICE COIL MOTORS AND MAGNETIC CIRCUITS THEREFOR 公开/授权日：2008-09-25
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