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1. 发明申请

US20100061014A1 Magnetic Reproducing Element Using Anomalous Hall Effect and Magnetic Head Using the Same 有权
标题翻译：使用异常霍尔效应的磁复制元件和使用其的磁头
公开(公告)号：US20100061014A1
公开(公告)日：2010-03-11
申请号：US12556492
申请日：2009-09-09
申请人： Sarbanoo Das , Hiroyuki Suzuki , Masae Suzuki
发明人： Sarbanoo Das , Hiroyuki Suzuki , Masae Suzuki
IPC分类号： G11B5/37
CPC分类号： G11B5/374 , G11B5/1278 , G11C11/18
摘要： According to one embodiment, magnetic reproducing element for detecting a magnetic field from a magnetic recording medium comprises a sensor film including a perpendicular magnetization film having a magnetization easy axis in a direction perpendicular to a film plane, wherein magnetization in the sensor film tilts upward or downward in an element height direction from the magnetization easy axis while no magnetic field is applied from the magnetic recording medium, and change in anomalous Hall voltage generated in the sensor film is detected, thereby allowing the magnetic field applied from the magnetic recording medium to be detected. Other magnetic reproducing elements and magnetic heads employing magnetic reproducing elements are described as well.
摘要翻译：根据一个实施例，用于检测来自磁记录介质的磁场的磁再现元件包括传感器膜，其包括在垂直于膜平面的方向上具有易磁化轴的垂直磁化膜，其中传感器膜中的磁化向上倾斜或在磁化容易轴的元件高度方向上向下，同时没有从磁记录介质施加磁场，并且检测到传感器膜中产生的异常霍尔电压的变化，从而允许从磁记录介质施加的磁场为检测到。还描述了采用磁再现元件的其它磁再现元件和磁头。

2. 发明授权

US08390954B2 Magnetic reproducing element using anomalous hall effect and magnetic head using the same 有权
标题翻译：使用异常霍尔效应的磁性再现元件和使用相同的磁头
公开(公告)号：US08390954B2
公开(公告)日：2013-03-05
申请号：US12556492
申请日：2009-09-09
申请人： Sarbanoo Das , Masae Suzuki
发明人： Sarbanoo Das , Hiroyuki Suzuki
IPC分类号： G11B5/37
CPC分类号： G11B5/374 , G11B5/1278 , G11C11/18
摘要： According to one embodiment, magnetic reproducing element for detecting a magnetic field from a magnetic recording medium comprises a sensor film including a perpendicular magnetization film having a magnetization easy axis in a direction perpendicular to a film plane, wherein magnetization in the sensor film tilts upward or downward in an element height direction from the magnetization easy axis while no magnetic field is applied from the magnetic recording medium, and change in anomalous Hall voltage generated in the sensor film is detected, thereby allowing the magnetic field applied from the magnetic recording medium to be detected. Other magnetic reproducing elements and magnetic heads employing magnetic reproducing elements are described as well.
摘要翻译：根据一个实施例，用于检测来自磁记录介质的磁场的磁再现元件包括传感器膜，其包括在垂直于膜平面的方向上具有易磁化轴的垂直磁化膜，其中传感器膜中的磁化向上倾斜或在磁化容易轴的元件高度方向上向下，同时没有从磁记录介质施加磁场，并且检测到传感器膜中产生的异常霍尔电压的变化，从而允许从磁记录介质施加的磁场为检测到。还描述了采用磁再现元件的其它磁再现元件和磁头。

3. 发明申请

US20130120869A1 PERPENDICULAR MAGNETIC WRITE HEAD HAVING A CURRENT CARRYING ELEMENT FOR IN-PLANE FIELD ASSISTED MAGNETIC RECORDING 有权
标题翻译：具有用于平面内现场辅助磁记录的电流携带元件的全磁性磁头
公开(公告)号：US20130120869A1
公开(公告)日：2013-05-16
申请号：US13297106
申请日：2011-11-15
申请人： Sarbanoo Das , Masafumi Mochizuki
发明人： Sarbanoo Das , Masafumi Mochizuki
IPC分类号： G11B5/127 , G11B21/02 , B82Y25/00
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/314 , G11B5/315 , G11B2005/0002
摘要： In one embodiment, a magnetic head includes a main pole configured to produce a magnetic writing field applied to a magnetic medium at an overall angle with respect to a magnetic anisotropy axis which is oriented in a direction perpendicular to a plane of a surface of the magnetic medium, and at least one current carrying element positioned near a media facing surface of the main pole configured to produce an assisting magnetic field applied in a cross-track direction parallel to the plane of the surface of the magnetic medium. In another embodiment, a method includes applying a writing magnetic field to write data to a magnetic medium and applying an assisting magnetic field to the magnetic medium for assisting the writing magnetic field, the assisting magnetic field being applied in a cross-track direction of the magnetic medium and parallel to a plane of a surface of the magnetic medium.
摘要翻译：在一个实施例中，磁头包括主极，该主极被配置为产生相对于磁各向异性轴以整个角度施加到磁介质的磁场，该磁各向异性轴在垂直于磁性表面的平面的方向上取向介质和至少一个载流元件，其定位在主极的面向介质的表面附近，其被配置为产生沿平行于磁介质的表面的平面的交叉轨道方向施加的辅助磁场。在另一个实施例中，一种方法包括：施加写磁场以将数据写入磁介质，并向磁介质施加辅助磁场以辅助写入磁场，辅助磁场沿着磁介质并且平行于磁介质的表面的平面。

4. 发明申请

US20120162810A1 MAGNETIC HEAD HAVING A PLANAR HALL EFFECT READ SENSOR 有权
标题翻译：具有平面霍尔效应读取传感器的磁头
公开(公告)号：US20120162810A1
公开(公告)日：2012-06-28
申请号：US12976975
申请日：2010-12-22
申请人： Sarbanoo Das , Masafumi Mochizuki
发明人： Sarbanoo Das , Masafumi Mochizuki
IPC分类号： G11B5/37 , G11B21/02
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , G11B5/374 , G11B2005/3996
摘要： In one embodiment a magnetic head includes a sensor thin film adapted for producing a planar Hall voltage, the sensor thin film having a thickness along a down-track direction that is greater than a thickness along a cross-track direction. The down-track direction is in a direction of travel of a magnetic medium relative to the sensor thin film, and the cross-track direction is perpendicular to the down-track direction. In another embodiment, at least one magnetic head as described above is included in a magnetic data storage system, which includes a magnetic medium, a drive mechanism for passing the magnetic medium over the at least one magnetic head, and a controller electrically coupled to the at least one magnetic head for controlling operation of the at least one magnetic head. Other heads and systems are described according to various other embodiments.
摘要翻译：在一个实施例中，磁头包括适于产生平面霍尔电压的传感器薄膜，所述传感器薄膜沿着沿着下游方向的厚度大于沿着横向方向的厚度。下轨道方向是在磁介质相对于传感器薄膜的行进方向上，并且横向方向垂直于下轨道方向。在另一个实施例中，如上所述的至少一个磁头包括在磁数据存储系统中，磁数据存储系统包括磁介质，用于使磁介质通过至少一个磁头的驱动机构，以及电耦合到至少一个用于控制所述至少一个磁头的操作的磁头。根据各种其他实施例描述其他头和系统。

5. 发明授权

US08786984B2 Perpendicular magnetic write head having a current carrying element for in-plane field assisted magnetic recording 有权
标题翻译：具有用于面内场辅助磁记录的载流元件的垂直磁写头
公开(公告)号：US08786984B2
公开(公告)日：2014-07-22
申请号：US13297106
申请日：2011-11-15
申请人： Sarbanoo Das , Masafumi Mochizuki
发明人： Sarbanoo Das , Masafumi Mochizuki
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/314 , G11B5/315 , G11B2005/0002
摘要： In one embodiment, a magnetic head includes a main pole configured to produce a magnetic writing field applied to a magnetic medium at an overall angle with respect to a magnetic anisotropy axis which is oriented in a direction perpendicular to a plane of a surface of the magnetic medium, and at least one current carrying element positioned near a media facing surface of the main pole configured to produce an assisting magnetic field applied in a cross-track direction parallel to the plane of the surface of the magnetic medium. In another embodiment, a method includes applying a writing magnetic field to write data to a magnetic medium and applying an assisting magnetic field to the magnetic medium for assisting the writing magnetic field, the assisting magnetic field being applied in a cross-track direction of the magnetic medium and parallel to a plane of a surface of the magnetic medium.
摘要翻译：在一个实施例中，磁头包括主极，该主极被配置为产生相对于磁各向异性轴以整个角度施加到磁介质的磁场，该磁各向异性轴在垂直于磁性表面的平面的方向上取向介质和至少一个载流元件，其定位在主极的面向介质的表面附近，其被配置为产生沿平行于磁介质的表面的平面的交叉轨道方向施加的辅助磁场。在另一个实施例中，一种方法包括：施加写磁场以将数据写入磁介质，并向磁介质施加辅助磁场以辅助写入磁场，辅助磁场沿着磁介质并且平行于磁介质的表面的平面。

6. 发明申请

US20130170070A1 MAGNETIC-RECORDING HEAD WITH TOUCH-DOWN DETECTOR INCORPORATING A CARBON NANO-TUBE 有权
标题翻译：配有碳纳米管的触控式探头的磁记录头
公开(公告)号：US20130170070A1
公开(公告)日：2013-07-04
申请号：US13341755
申请日：2011-12-30
申请人： Sarbanoo Das , Masafumi Mochizuki
发明人： Sarbanoo Das , Masafumi Mochizuki
IPC分类号： G11B5/40 , G11B21/12 , G11B17/02 , B82Y15/00
CPC分类号： G11B5/607 , B82Y10/00 , B82Y15/00 , G11B5/40 , G11B5/6076
摘要： A magnetic-recording head with touch-down detector incorporating a carbon nano-tube (CNT). The magnetic-recording head includes a write element, a read element and a touch-down detector. The write element is configured to write data to a magnetic-recording disk. The read element is configured to read data from the magnetic-recording disk. The touch-down detector includes a thermal sensor, and a CNT portion. The thermal sensor is configured to convert heat to a voltage signal. The CNT portion is configured to touch down on the magnetic-recording disk. The CNT portion is also coupled to the thermal sensor, and is configured to transfer heat generated by contact between the CNT portion and the magnetic-recording disk to the thermal sensor. A hard-disk drive (HDD) including the magnetic-recording head with touch-down detector incorporating a CNT, and a method for detecting contact between the magnetic-recording head and a recording surface of a magnetic-recording disk are also provided.
摘要翻译：具有碳纳米管（CNT）的触摸屏检测器的磁记录头。磁记录头包括写入元件，读取元件和触控下降检测器。写元件被配置为将数据写入磁记录盘。读取元件被配置为从磁记录盘读取数据。触摸屏检测器包括热传感器和CNT部分。热传感器被配置为将热量转换成电压信号。 CNT部分配置成在磁记录盘上向下触摸。 CNT部分还耦合到热传感器，并且被配置为将由CNT部分和磁记录盘之间的接触产生的热传递到热传感器。还提供了包括具有CNT的具有触下检测器的磁记录头的硬盘驱动器（HDD），以及用于检测磁记录头与磁记录盘的记录表面之间的接触的方法。

7. 发明授权

US08817406B2 Magnetic-recording head with touch-down detector incorporating a carbon nano-tube 有权
标题翻译：配有碳纳米管的带触摸检测器的磁记录头
公开(公告)号：US08817406B2
公开(公告)日：2014-08-26
申请号：US13341755
申请日：2011-12-30
申请人： Sarbanoo Das , Masafumi Mochizuki
发明人： Sarbanoo Das , Masafumi Mochizuki
IPC分类号： G11B5/187
CPC分类号： G11B5/607 , B82Y10/00 , B82Y15/00 , G11B5/40 , G11B5/6076
摘要： A magnetic-recording head with touch-down detector incorporating a carbon nano-tube (CNT). The magnetic-recording head includes a write element, a read element and a touch-down detector. The write element is configured to write data to a magnetic-recording disk. The read element is configured to read data from the magnetic-recording disk. The touch-down detector includes a thermal sensor, and a CNT portion. The thermal sensor is configured to convert heat to a voltage signal. The CNT portion is configured to touch down on the magnetic-recording disk. The CNT portion is also coupled to the thermal sensor, and is configured to transfer heat generated by contact between the CNT portion and the magnetic-recording disk to the thermal sensor. A hard-disk drive (HDD) including the magnetic-recording head with touch-down detector incorporating a CNT, and a method for detecting contact between the magnetic-recording head and a recording surface of a magnetic-recording disk are also provided.
摘要翻译：具有碳纳米管（CNT）的触摸屏检测器的磁记录头。磁记录头包括写入元件，读取元件和触控下降检测器。写元件被配置为将数据写入磁记录盘。读取元件被配置为从磁记录盘读取数据。触摸屏检测器包括热传感器和CNT部分。热传感器被配置为将热量转换成电压信号。 CNT部分配置成在磁记录盘上向下触摸。 CNT部分还耦合到热传感器，并且被配置为将由CNT部分和磁记录盘之间的接触产生的热传递到热传感器。还提供了包括具有CNT的具有触下检测器的磁记录头的硬盘驱动器（HDD），以及用于检测磁记录头与磁记录盘的记录表面之间的接触的方法。

8. 发明授权

US08760801B2 Magnetic head having a planar hall effect read sensor 有权
标题翻译：具有平面霍尔效应读取传感器的磁头
公开(公告)号：US08760801B2
公开(公告)日：2014-06-24
申请号：US12976975
申请日：2010-12-22
申请人： Sarbanoo Das , Masafumi Mochizuki
发明人： Sarbanoo Das , Masafumi Mochizuki
IPC分类号： G11B5/37
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , G11B5/374 , G11B2005/3996
摘要： In one embodiment a magnetic head includes a sensor thin film adapted for producing a planar Hall voltage, the sensor thin film having a thickness along a down-track direction that is greater than a thickness along a cross-track direction. The down-track direction is in a direction of travel of a magnetic medium relative to the sensor thin film, and the cross-track direction is perpendicular to the down-track direction. In another embodiment, at least one magnetic head as described above is included in a magnetic data storage system, which includes a magnetic medium, a drive mechanism for passing the magnetic medium over the at least one magnetic head, and a controller electrically coupled to the at least one magnetic head for controlling operation of the at least one magnetic head. Other heads and systems are described according to various other embodiments.
摘要翻译：在一个实施例中，磁头包括适于产生平面霍尔电压的传感器薄膜，所述传感器薄膜沿着沿着下游方向的厚度大于沿着横向方向的厚度。下轨道方向是在磁介质相对于传感器薄膜的行进方向上，并且横向方向垂直于下轨道方向。在另一个实施例中，如上所述的至少一个磁头包括在磁数据存储系统中，磁数据存储系统包括磁介质，用于使磁介质通过至少一个磁头的驱动机构，以及电耦合到至少一个用于控制所述至少一个磁头的操作的磁头。根据各种其他实施例描述其他头和系统。

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