发明名称 |
Magnetic guiding apparatus |
摘要 |
A magnetic guiding apparatus guides a moving member by attracting a target with electromagnets provided on the moving member. The magnetic guiding apparatus has a magnetic-flux detection device movable along the target to detect magnetic flux of the target and a position measuring unit measures the position of the magnetic-flux detection device. A control unit detects the position of magnetic flux in the target from the position information obtained by the position measuring unit and the magnetic-flux information obtained from the magnetic-flux detection device and performs demagnetization at the detected magnetic flux position.
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申请公布号 |
US2004227474(A1) |
申请公布日期 |
2004.11.18 |
申请号 |
US20040830004 |
申请日期 |
2004.04.23 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
TOSIYA ASANO |
分类号 |
G03F7/20;H01L21/027;H01L21/68;H02K41/03;(IPC1-7):H02K41/00;H02P1/00;H02P3/00 |
主分类号 |
G03F7/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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