发明名称 |
MAGNETIC SENSOR, MAGNETIC FIELD SENSING METHOD, SEMAGNETIC RECORDING HEAD, AND MAGNETIC MEMORY DEVICE |
摘要 |
A magnetic sensor includes a magnetoresistance element having a peak of a thermal fluctuation strength of magnetization under a magnetic field having a certain frequency, a frequency filter connected to the magnetoresistance element and having its transmittance decreased or increased in substantially the frequency of the magnetic field to output a signal corresponding substantially to the peak of the thermal fluctuation strength of magnetization, and a detector connected to the frequency filter to detect the magnetic field based on the signal of the frequency filter.
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申请公布号 |
US2009097169(A1) |
申请公布日期 |
2009.04.16 |
申请号 |
US20080332382 |
申请日期 |
2008.12.11 |
申请人 |
SATO RIE;MIZUSHIMA KOICHI |
发明人 |
SATO RIE;MIZUSHIMA KOICHI |
分类号 |
G11B5/33;G01R33/09;G11B5/127;G11B5/31;G11B20/10;G11B20/24;H01F10/32;H01L43/08 |
主分类号 |
G11B5/33 |
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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