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    Perpendicular magnetic recording head having a magnetic layer overhanging a trailing side of a main pole and method of manufacture thereof
    3.
    发明授权
    Perpendicular magnetic recording head having a magnetic layer overhanging a trailing side of a main pole and method of manufacture thereof 有权
    具有悬垂在主极的后侧的磁性层的垂直磁记录头及其制造方法

    公开(公告)号：US08335051B2

    公开(公告)日：2012-12-18

    申请号：US12636667

    申请日：2009-12-11

    申请人： Isao Nunokawa ,  Mikito Sugiyama ,  Kikuo Kusukawa ,  Kimitoshi Etoh

    发明人： Isao Nunokawa ,  Mikito Sugiyama ,  Kikuo Kusukawa ,  Kimitoshi Etoh

    IPC分类号： G11B5/187 ,  G11B5/147

    CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3163 ,  Y10T29/49044

    摘要： A recording head having a narrowed track has a high recording magnetic field strength and a high recording magnetic field gradient has certain problems which may be difficult to overcome. In one embodiment, a magnetic film, which overhangs from a track width, is provided on a trailing side of a. region retracted from an ABS of a main pole facing a recording medium. Thereby, a magnetic field strength on the trailing side is increased so that a difference in distribution of magnetic field strength defined by a geometrical bevel angle given to the main pole is increased. Consequently, writing performance of the main pole is improved while forming a large magnetic clearance angle with respect to an adjacent track and suppresses writing into an adjacent track when skew occurs. Other systems and methods are also disclosed regarding a head with a high recording magnetic field using an overhanging magnetic film.

    摘要翻译： 具有窄轨道的记录头具有高记录磁场强度，并且高记录磁场梯度具有可能难以克服的某些问题。 在一个实施例中，从从磁道宽度伸出的磁性膜设置在从面向记录介质的主磁极的ABS缩回的区域的后侧。 由此，后侧的磁场强度增加，使得由给予主极的几何斜角确定的磁场强度分布的差异增大。 因此，当相对于相邻的轨道形成大的磁隙角度时，改善了主极的写入性能，并且在发生偏斜时抑制了向相邻轨道的写入。 关于使用悬垂磁性膜的具有高记录磁场的磁头也公开了其它系统和方法。

    PERPENDICULAR MAGNETIC RECORDING HEAD HAVING A MAGNETIC LAYER OVERHANGING A TRAILING SIDE OF A MAIN POLE AND METHOD OF MANUFACTURE THEREOF
    4.
    发明申请
    PERPENDICULAR MAGNETIC RECORDING HEAD HAVING A MAGNETIC LAYER OVERHANGING A TRAILING SIDE OF A MAIN POLE AND METHOD OF MANUFACTURE THEREOF 有权
    具有磁性层的永磁磁记录头，主要是一个主要的尾部及其制造方法

    公开(公告)号：US20100149697A1

    公开(公告)日：2010-06-17

    申请号：US12636667

    申请日：2009-12-11

    申请人： Isao Nunokawa ,  Mikito Sugiyama ,  Kikuo Kusukawa ,  Kimitoshi Etoh

    发明人： Isao Nunokawa ,  Mikito Sugiyama ,  Kikuo Kusukawa ,  Kimitoshi Etoh

    IPC分类号： G11B5/33

    CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3163 ,  Y10T29/49044

    摘要： A recording head having a narrowed track has a high recording magnetic field strength and a high recording magnetic field gradient has certain problems which may be difficult to overcome. In one embodiment, a magnetic film, which overhangs from a track width, is provided on a trailing side of a region retracted from an ABS of a main pole facing a recording medium. Thereby, a magnetic field strength on the trailing side is increased so that a difference in distribution of magnetic field strength defined by a geometrical Bevel angle given to the main pole is increased. Consequently, writing performance of the main pole is improved while forming a large magnetic clearance angle with respect to an adjacent track and suppresses writing into an adjacent track when skew occurs. Other systems and methods are also disclosed regarding a head with a high recording magnetic field using an overhanging magnetic film.

    摘要翻译： 具有窄轨道的记录头具有高记录磁场强度，并且高记录磁场梯度具有可能难以克服的某些问题。 在一个实施例中，从从磁道宽度伸出的磁性膜设置在从面向记录介质的主磁极的ABS缩回的区域的后侧。 因此，后侧的磁场强度增加，从而增加了由给予主极的几何斜角确定的磁场强度分布的差异。 因此，当相对于相邻的轨道形成大的磁隙角度时，改善了主极的写入性能，并且在发生偏斜时抑制了向相邻轨道的写入。 关于使用悬垂磁性膜的具有高记录磁场的磁头也公开了其它系统和方法。

    PERPENDICULAR RECORDING MAGNETIC HEAD WITH A VARYING INTERVAL BETWEEN THE MAIN POLE AND THE SHIELD, AND METHODS OF MANUFACTURING THEREOF
    5.
    发明申请
    PERPENDICULAR RECORDING MAGNETIC HEAD WITH A VARYING INTERVAL BETWEEN THE MAIN POLE AND THE SHIELD, AND METHODS OF MANUFACTURING THEREOF 有权
    主要记录磁头与主要和屏蔽之间的变化间隔及其制造方法

    公开(公告)号：US20100157484A1

    公开(公告)日：2010-06-24

    申请号：US12636659

    申请日：2009-12-11

    申请人： Kimitoshi Etoh ,  Mikito Sugiyama ,  Isao Nunokawa ,  Tomohiro Okada

    发明人： Kimitoshi Etoh ,  Mikito Sugiyama ,  Isao Nunokawa ,  Tomohiro Okada

    IPC分类号： G11B5/33

    CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3163 ,  Y10T29/49032

    摘要： A perpendicular recording magnetic head is provided, according to one embodiment, in which even if a thickness of a main pole is reduced corresponding to a reduction in a recording track width, recording performance is not degraded. A magnetic-field auxiliary pole and a nonmagnetic layer are stacked on a main pole, and a nonmagnetic portion is provided on each side face on a flying surface side of the magnetic-field auxiliary pole and the nonmagnetic layer, in one approach. In all regions except for a region near a flying surface, an interval between the main pole and a shield is increased by the nonmagnetic portion and the nonmagnetic layer, so that magnetic field loss is prevented, and consequently magnetic field strength and a magnetic field gradient are increased. Other systems and methods are also disclosed for retaining magnetic recording performance while reducing a thickness of a main pole.

    摘要翻译： 根据一个实施例，提供垂直记录磁头，其中即使根据记录磁道宽度的减小而减小主磁极的厚度，记录性能也不会降低。 磁场辅助极和非磁性层堆叠在主极上，并且在磁场辅助极和非磁性层的飞表面侧的每个侧面上设置非磁性部分。 除了靠近飞行表面的区域以外的所有区域中，通过非磁性部分和非磁性层增加了主极和屏蔽之间的间隔，从而防止了磁场损耗，因此磁场强度和磁场梯度 增加了。 还公开了用于保持磁记录性能同时减小主极的厚度的其它系统和方法。

    Perpendicular recording magnetic head with a varying interval between the main pole and the shield, and methods of manufacturing thereof
    6.
    发明授权
    Perpendicular recording magnetic head with a varying interval between the main pole and the shield, and methods of manufacturing thereof 有权
    在主极和屏蔽之间具有不同间隔的垂直记录磁头及其制造方法

    公开(公告)号：US08351154B2

    公开(公告)日：2013-01-08

    申请号：US12636659

    申请日：2009-12-11

    申请人： Kimitoshi Etoh ,  Mikito Sugiyama ,  Isao Nunokawa ,  Tomohiro Okada

    发明人： Kimitoshi Etoh ,  Mikito Sugiyama ,  Isao Nunokawa ,  Tomohiro Okada

    IPC分类号： G11B5/127

    CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3163 ,  Y10T29/49032

    摘要： A perpendicular recording magnetic head is provided, according to one embodiment, in which even if a thickness of a main pole is reduced corresponding to a reduction in a recording track width, recording performance is not degraded. A magnetic-field auxiliary pole and a nonmagnetic layer are stacked on a main pole, and a nonmagnetic portion is provided on each side face on a flying surface side of the magnetic-field auxiliary pole and the nonmagnetic layer, in one approach. In all regions except for a region near a flying surface, an interval between the main pole and a shield is increased by the nonmagnetic portion and the nonmagnetic layer, so that magnetic field loss is prevented, and consequently magnetic field strength and a magnetic field gradient are increased. Other systems and methods are also disclosed for retaining magnetic recording performance while reducing a thickness of a main pole.

    摘要翻译： 根据一个实施例，提供垂直记录磁头，其中即使根据记录磁道宽度的减小而减小主磁极的厚度，记录性能也不会降低。 磁场辅助极和非磁性层堆叠在主极上，并且在磁场辅助极和非磁性层的飞表面侧的每个侧面上设置非磁性部分。 除了靠近飞行表面的区域以外的所有区域中，通过非磁性部分和非磁性层增加了主极和屏蔽之间的间隔，从而防止了磁场损耗，因此磁场强度和磁场梯度 增加了。 还公开了用于保持磁记录性能同时减小主极的厚度的其它系统和方法。

    Perpendicular magnetic write head having a main magnetic write pole portion and a magnetic sub-pole portion configured for increased magnetic write field
    9.
    发明授权
    Perpendicular magnetic write head having a main magnetic write pole portion and a magnetic sub-pole portion configured for increased magnetic write field 有权
    具有主磁写磁极部分和磁极子部分的垂直磁写头，其被配置用于增加磁写磁场

    公开(公告)号：US08964331B2

    公开(公告)日：2015-02-24

    申请号：US13530027

    申请日：2012-06-21

    申请人： Mikito Sugiyama ,  Kazuhiko Hosomi ,  Kaori Suzuki

    发明人： Mikito Sugiyama ,  Kazuhiko Hosomi ,  Kaori Suzuki

    IPC分类号： G11B5/31

    CPC分类号： G11B5/315 ,  G11B5/1278

    摘要： A magnetic write head having a main magnetic write pole and a magnetic sub-pole that are configured to maximize magnetic performance. The main magnetic write pole has a flared portion located near the air bearing surface and a non-flared portion removed from the air bearing surface. A magnetic sub-pole is formed adjacent to the main magnetic write pole and terminates at a front endpoint that is recessed from the air bearing surface but is closer to the air bearing surface than the non-flared portion.

    摘要翻译： 具有被配置为使磁性能最大化的主磁写磁极和磁子极的磁写头。 主磁性写磁极具有位于空气支承表面附近的扩口部分，并且从空气支承表面移除未扩张部分。 磁性子极与主磁性写入磁极相邻地形成，并且终止于从空气轴承表面凹入的前端点，但是比未扩张部分更靠近空气轴承表面。

    PERPENDICULAR MAGNETIC RECORDING HEAD HAVING A MAIN POLE AND A SUB-POLE
    10.
    发明申请
    PERPENDICULAR MAGNETIC RECORDING HEAD HAVING A MAIN POLE AND A SUB-POLE 有权
    具有主要和亚极的全磁性记录头

    公开(公告)号：US20130342937A1

    公开(公告)日：2013-12-26

    申请号：US13530027

    申请日：2012-06-21

    申请人： Mikito Sugiyama ,  Kazuhiko Hosomi ,  Kaori Suzuki

    发明人： Mikito Sugiyama ,  Kazuhiko Hosomi ,  Kaori Suzuki

    IPC分类号： G11B5/33

    CPC分类号： G11B5/315 ,  G11B5/1278

    摘要： A magnetic write head having a main magnetic write pole and a magnetic sub-pole that are configured to maximize magnetic performance. The main magnetic write pole has a flared portion located near the air bearing surface and a non-flared portion removed from the air bearing surface. A magnetic sub-pole is formed adjacent to the main magnetic write pole and terminates at a front endpoint that is recessed from the air bearing surface but is closer to the air bearing surface than the non-flared portion.

    摘要翻译： 具有被配置为使磁性能最大化的主磁写磁极和磁子极的磁写头。 主磁性写磁极具有位于空气支承表面附近的扩口部分，并且从空气支承表面移除未扩张部分。 磁性子极与主磁性写入磁极相邻地形成，并且终止于从空气轴承表面凹入的前端点，但是比未扩张部分更靠近空气轴承表面。