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1. 发明授权

US5990417A Electromagnetic noise absorbing material and electromagnetic noise filter 失效
标题翻译：电磁噪声吸收材料和电磁噪声滤波器
公开(公告)号：US5990417A
公开(公告)日：1999-11-23
申请号：US257769
申请日：1994-06-06
申请人： Masakatsu Senda , Toshinori Mori , Osamu Ishii , Yasuhiro Koshimoto , Tomoyuki Toshima
发明人： Masakatsu Senda , Toshinori Mori , Osamu Ishii , Yasuhiro Koshimoto , Tomoyuki Toshima
IPC分类号： H01F17/06 , H05K9/00
CPC分类号： H05K9/0088 , H01F17/06 , H01F2017/065
摘要： Electromagnetic noise absorbing material and filter, which are small, light, and effective even with respect to unwanted electromagnetic waves of a few hundred MHz or more, are provided. A small and flexible electromagnetic noise filter cable and tape-shaped electromagnetic noise filter, as well as a manufacturing method and manufacturing apparatus therefor, are also provided. The electromagnetic noise absorbing material has a thickness or particle diameter of the alloy magnetic substance which is within a range of from 1/10 to 10 times the skin depth thereof, and thereby, a large eddy current loss can be generated, so that it is possible to manufacture electromagnetic noise filters having various shapes, which are small, light, and which realize a large electromagnetic noise suppression effect as a result of eddy current loss, and these possess a large relative magnetic permeability even at levels of a few hundred MHz or more. According to the thin film manufacturing method and apparatus, it is possible to easily manufacture an electromagnetic noise absorbing material having small hysteresis, possessing a hard axis of uni-axial magnetic anisotropy, which is superior in high-frequency response, and has a large electromagnetic noise suppression effect.
摘要翻译：提供电磁噪声吸收材料和滤波器，其即使对于几百MHz或更多的不需要的电磁波也是小的，轻的和有效的。还提供了一种小而灵活的电磁噪声滤波器电缆和带状电磁噪声滤波器以及其制造方法和制造装置。电磁噪声吸收材料的合金磁性物质的厚度或粒径在+ E，fra 1/10 + EE至其10倍的皮肤深度的范围内，因此可以大的涡流损耗从而可以制造小型，轻型的各种形状的电磁噪声滤波器，并且由于涡电流损耗而实现大的电磁噪声抑制效果，并且这些具有相对磁导率甚至相当高的水平几百MHz以上。根据薄膜制造方法和装置，可以容易地制造具有低磁滞的电磁噪声吸收材料，具有高频响应性优异的单轴磁各向异性的硬轴，并且具有大的电磁噪音抑制效果。

2. 发明授权

US5705926A Magnetic sensor and magnetic field sensing method of using same based on impedance changes of a high frequency supplied conductor 失效
标题翻译：磁传感器和磁场感应方法采用基于高频供电导体阻抗变化的方法
公开(公告)号：US5705926A
公开(公告)日：1998-01-06
申请号：US631402
申请日：1996-04-12
申请人： Masakatsu Senda , Osamu Ishii , Yasuhiro Koshimoto , Tomoyuki Toshima
发明人： Masakatsu Senda , Osamu Ishii , Yasuhiro Koshimoto , Tomoyuki Toshima
IPC分类号： G01R33/02 , G01R33/06 , G11B5/33 , G11B21/00
CPC分类号： G01R33/02 , G01R33/06 , G11B5/33 , G11B5/332
摘要： In a magnetic field sensing method in accordance with the invention of the present application, a magnetic sensor comprising a conductor and at least one magnetic material provided on any of the surfaces of this conductor, is employed. This magnetic sensor is disposed in the vicinity of an external magnetic field which is to be sensed, and by means of supplying a high frequency current to this conductor, the impedance of the conductor changes in accordance with the external magnetic field, and based on this, the external magnetic field is sensed.
摘要翻译：在根据本申请的本发明的磁场感测方法中，使用包括导体和设置在该导体的任何表面上的至少一个磁性材料的磁传感器。该磁传感器设置在要感测的外部磁场附近，并且通过向该导体提供高频电流，导体的阻抗根据外部磁场而变化，并且基于该，感测到外部磁场。

3. 发明授权

US5811971A Magnetic sensor and magnetic field sensing method using said magnetic sensor based on impedance changes of a high frequency excited conductor 失效
标题翻译：基于高频激励导体的阻抗变化，使用所述磁传感器的磁传感器和磁场感测方法
公开(公告)号：US5811971A
公开(公告)日：1998-09-22
申请号：US593387
申请日：1996-01-29
申请人： Masakatsu Senda , Osamu Ishii , Yasuhiro Koshimoto , Tomoyuki Toshima
发明人： Masakatsu Senda , Osamu Ishii , Yasuhiro Koshimoto , Tomoyuki Toshima
IPC分类号： G01R33/02 , G01R33/06 , G11B5/33
CPC分类号： G01R33/02 , G01R33/06 , G11B5/33 , G11B5/332
摘要： In a magnetic field sensing method in accordance with the invention of the present application, a magnetic sensor comprising a conductor and at least one magnetic material provided on any of the surfaces of this conductor, is employed. This magnetic sensor is disposed in the vicinity of an external magnetic field which is to be sensed, and by means of supplying a high frequency current to this conductor, the impedance of the conductor changes in accordance with the external magnetic field, and based on this, the external magnetic field is sensed.
摘要翻译：在根据本申请的本发明的磁场感测方法中，使用包括导体和设置在该导体的任何表面上的至少一个磁性材料的磁传感器。该磁传感器设置在要感测的外部磁场附近，并且通过向该导体提供高频电流，导体的阻抗根据外部磁场而变化，并且基于该，感测到外部磁场。

4. 发明授权

US5734267A Magnetic head, magnetic recording method using the magnetic head, and magnetic field sensing method using the magnetic head based on impedance changes of a high frequency excited conductor 失效
标题翻译：使用磁头的磁头，磁记录方法，以及基于高频激励导体的阻抗变化的使用磁头的磁场感测方法
公开(公告)号：US5734267A
公开(公告)日：1998-03-31
申请号：US593386
申请日：1996-01-29
申请人： Masakatsu Senda , Osamu Ishii , Yasuhiro Koshimoto , Tomoyuki Toshima
发明人： Masakatsu Senda , Osamu Ishii , Yasuhiro Koshimoto , Tomoyuki Toshima
IPC分类号： G01R33/02 , G01R33/06 , G11B5/33
CPC分类号： G01R33/02 , G01R33/06 , G11B5/33 , G11B5/332
摘要： In a magnetic field sensing method in accordance with the invention of the present application, a magnetic sensor comprising a conductor and at least one magnetic material provided on any of the surfaces of this conductor, is employed. This magnetic sensor is disposed in the vicinity of an external magnetic field which is to be sensed, and by means of supplying a high frequency current to this conductor, the impedance of the conductor changes in accordance with the external magnetic field, and based on this, the external magnetic field is sensed.
摘要翻译：在根据本申请的本发明的磁场感测方法中，使用包括导体和设置在该导体的任何表面上的至少一个磁性材料的磁传感器。该磁传感器设置在要感测的外部磁场附近，并且通过向该导体提供高频电流，导体的阻抗根据外部磁场而变化，并且基于该，感测到外部磁场。

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