公开(公告)号：US08351306B2

公开(公告)日：2013-01-08

申请号：US12733983

申请日：2008-09-25

申请人： Masakazu Hirata ,  Manabu Oumi ,  Majung Park

发明人： Masakazu Hirata ,  Manabu Oumi ,  Majung Park

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B5/6088 ,  G11B2005/0005 ,  G11B2005/0021

摘要： A near field optical head includes a slider 20, a main magnetic pole 32 and an auxiliary magnetic pole 30 and is provided with a recording element 21 fixed on a top end surface of the slider. The near field optical head is provided with a light flux transmission element 22. The light flux transmission element 22 is fixed adjacently to the main magnetic pole and formed from a flat surface 40a and a curved surface 40b into the shape of a half column. The light flux transmission element 22 includes a core 40 for transmitting a light flux L introduced from one end to the other end and a cladding 41 for confining therein the core. The near field optical head includes a metal film 23, which is formed on a curved surface in the vicinity of the other end of the core for generating near filed light R from a light flux to localize the near field light on a field surface between the metal film and the curved surface, and a light flux introducing means 4 for introducing the light flux having a polarization direction adjusted into a straight direction substantially perpendicular to the flat surface from one end into the core. A top end of the main magnetic pole 32 is bent toward the core and embedded in the core while being exposed to the other end.

摘要翻译： 近场光学头包括滑块20，主磁极32和辅助磁极30，并且设置有固定在滑块的顶端表面上的记录元件21。 近场光学头设置有光束传输元件22.光束传输元件22与主磁极相邻地固定，并且由平坦表面40a和弯曲表面40b形成为半柱形。 光束传输元件22包括用于透射从一端引入另一端的光束L的芯体40和用于限制芯的包层41。 近场光学头包括形成在芯的另一端附近的弯曲表面上的金属膜23，用于从光通量产生近场光R以将近场光定位在 金属膜和弯曲表面，以及光束引入装置4，用于将具有从一端基本上垂直于平坦表面的直线方向的偏振方向的光束引入到芯中。 主磁极32的顶端朝着芯部弯曲，并且在暴露于另一端时嵌入在芯体中。

公开(公告)号：US08323518B2

公开(公告)日：2012-12-04

申请号：US12309799

申请日：2007-07-03

申请人： Masakazu Hirata ,  Manabu Oumi ,  Majung Park

发明人： Masakazu Hirata ,  Manabu Oumi ,  Majung Park

IPC分类号： G11B13/08 ,  G11B9/12

CPC分类号： G11B5/3163 ,  G11B5/02 ,  G11B5/314 ,  G11B7/122 ,  G11B7/1387 ,  G11B7/22 ,  G11B11/10554 ,  G11B2005/0005 ,  G11B2005/0021

摘要： A method of manufacturing a near-field optical head. A first projection shaped in a quadrangular pyramid is formed on a surface of a substrate for providing a near-field optical element of the near-field optical head. A second projection shaped in a frustum of quadrangular pyramid is formed on the surface of the substrate for providing an air bearing surface of the near-field optical head. A metal film is formed on at least one surface of the first projection and the metal film is connected with a resistance meter through a conduction wiring for detecting an electrical resistance of the metal film. The first and second projections and the metal film are polished while the resistance meter detects an electrical resistance of the metal film and until the detected electrical resistance reaches a predetermined value such that a top surface of the first projection has a specified size and becomes flush with a surface of the second projection providing the air bearing surface.

摘要翻译： 一种制造近场光学头的方法。 在基板的表面上形成四边形金字塔形状的第一突起，用于提供近场光学头的近场光学元件。 在基板的表面上形成有四棱锥形截面的第二突起，用于提供近场光学头的空气轴承表面。 金属膜形成在第一突起的至少一个表面上，并且金属膜通过用于检测金属膜的电阻的导电布线与电阻计连接。 抛光第一和第二突起和金属膜，同时电阻计检测到金属膜的电阻，并且直到检测到的电阻达到预定值，使得第一突起的顶表面具有规定的尺寸并变得与 所述第二突起的表面提供所述空气轴承表面。

公开(公告)号：US20100284252A1

公开(公告)日：2010-11-11

申请号：US12733983

申请日：2008-09-25

申请人： Masakazu Hirata ,  Manabu Oumi ,  Majung Park

发明人： Masakazu Hirata ,  Manabu Oumi ,  Majung Park

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B5/6088 ,  G11B2005/0005 ,  G11B2005/0021

摘要： A near field optical head includes a slider 20, a main magnetic pole 32 and an auxiliary magnetic pole 30 and is provided with a recording element 21 fixed on a top end surface of the slider. The near field optical head is provided with a light flux transmission element 22. The light flux transmission element 22 is fixed adjacently to the main magnetic pole and formed from a flat surface 40a and a curved surface 40b into the shape of a half column. The light flux transmission element 22 includes a core 40 for transmitting a light flux L introduced from one end to the other end and a cladding 41 for confining therein the core. The near field optical head includes a metal film 23, which is formed on a curved surface in the vicinity of the other end of the core for generating near filed light R from a light flux to localize the near field light on a field surface between the metal film and the curved surface, and a light flux introducing means 4 for introducing the light flux having a polarization direction adjusted into a straight direction substantially perpendicular to the flat surface from one end into the core. A top end of the main magnetic pole 32 is bent toward the core and embedded in the core while being exposed to the other end.

摘要翻译： 近场光学头包括滑块20，主磁极32和辅助磁极30，并且设置有固定在滑块的顶端表面上的记录元件21。 近场光学头设置有光束传输元件22.光束传输元件22与主磁极相邻地固定，并且由平坦表面40a和弯曲表面40b形成为半柱形。 光束传输元件22包括用于透射从一端引入另一端的光束L的芯体40和用于限制芯的包层41。 近场光学头包括形成在芯的另一端附近的弯曲表面上的金属膜23，用于从光通量产生近场光R以将近场光定位在 金属膜和弯曲表面，以及光束引入装置4，用于将具有从一端基本上垂直于平坦表面的直线方向的偏振方向的光束引入到芯中。 主磁极32的顶端朝着芯部弯曲，并且在暴露于另一端时嵌入在芯体中。

公开(公告)号：US08842504B2

公开(公告)日：2014-09-23

申请号：US12668076

申请日：2008-07-10

申请人： Masakazu Hirata ,  Manabu Oumi ,  Majung Park

发明人： Masakazu Hirata ,  Manabu Oumi ,  Majung Park

IPC分类号： G11B5/02 ,  G11B5/60 ,  G11B5/48 ,  G11B5/31 ,  G11B5/00

CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B5/4866 ,  G11B5/6088 ,  G11B2005/001 ,  G11B2005/0021

摘要： A near-field light head of the present invention includes: a slider disposed opposite to a surface of the magnetic recording medium; a recording element that includes a main magnetic pole generating the recording magnetic field and a subsidiary magnetic pole, the recording element being fixed to an apical surface of the slider so that the main magnetic pole and the subsidiary magnetic pole line up in a longitudinal direction of the slider in the state where the subsidiary magnetic pole is located at the apical surface of the slider; a near-field light generating element, fixed adjacently to the main magnetic pole in a state where another end side thereof is directed to the magnetic recording medium, that propagates the light flux introduced from one end side thereof toward the other end side to generate the near-field light, and radiates the near-field light from the other end side to the outside; and a light flux introducing device, fixed to the slider, that introduces the light flux from the one end side into the near-field light generating element. The near-field light generating element includes an inclined surface, which is inclined with respect to an optical axis of the light flux propagated through the inside thereof and is opposite to the main magnetic pole, in the other end side. A metallic film that increases light intensity of the near-field light to be increased is formed in the inclined surface.

摘要翻译： 本发明的近场光头包括：与磁记录介质的表面相对设置的滑块; 记录元件，其包括产生记录磁场的主磁极和辅助磁极，所述记录元件固定到所述滑块的顶面，使得所述主磁极和所述辅助磁极线在纵向方向上向上 所述滑块在所述辅助磁极位于所述滑块的顶面的状态下; 近场光产生元件，其在另一端侧被引导到磁记录介质的状态下相对于主磁极固定，将从其一端侧引入的光束向另一端侧传播，以产生 近场光，并将来自另一端侧的近场光辐射到外部; 以及固定到滑块的光束引入装置，其将来自一端侧的光通量引入近场光产生元件。 近场光产生元件包括在另一端侧相对于在其内部传播并与主磁极相对的光束的光轴倾斜的倾斜表面。 在倾斜表面中形成增加增加的近场光的光强度的金属膜。

公开(公告)号：US08467276B2

公开(公告)日：2013-06-18

申请号：US12736993

申请日：2009-05-19

申请人： Masakazu Hirata ,  Manabu Oumi ,  Mizuaki Suzuki ,  Majung Park

发明人： Masakazu Hirata ,  Manabu Oumi ,  Mizuaki Suzuki ,  Majung Park

IPC分类号： G11B11/00

CPC分类号： G11B5/583 ,  G11B5/4866 ,  G11B2005/0005 ,  G11B2005/0021

摘要： An information recording and reproduction apparatus has a magnetic recording medium, a light source that outputs a light beam to heat the medium, and a near-field light head confronting a surface of the medium. An optical waveguide introduces a light beam from the light source into the near-field light head to generate near-field light. A control section supplies a current to a recording element of the near-field light head for generating a recording magnetic field in a direction of the medium. A photoelectric composite wiring line has the optical waveguide and at least one electric wiring line integral with the optical waveguide and electrically connecting the near-field light head to the control section. The optical waveguide and the electric wiring line branch off from a distal side of the photoelectric composite wiring line so as to connect to the near-field light head.

摘要翻译： 信息记录和再现装置具有磁记录介质，输出光束以加热介质的光源和面对介质表面的近场光头。 光波导将来自光源的光束引入近场光头以产生近场光。 控制部分向近场光头的记录元件提供电流，用于在介质的方向上产生记录磁场。 光电复合布线具有光波导和与光波导成一体的至少一个电布线，并将近场光头与控制部电连接。 光波导和电布线从光电复合布线的远侧分支，以便连接到近场光头。

公开(公告)号：US08411391B2

公开(公告)日：2013-04-02

申请号：US12586796

申请日：2009-09-28

申请人： Masakazu Hirata ,  Manabu Oumi ,  Majung Park ,  Mizuaki Suzuki

发明人： Masakazu Hirata ,  Manabu Oumi ,  Majung Park ,  Mizuaki Suzuki

IPC分类号： G11B21/16

CPC分类号： G11B5/4833 ,  G11B5/486 ,  G11B5/4866

摘要： A head gimbal assembly comprises a slider having reproduction/reproducing elements for reproducing and recording information to/from a surface of a recording medium. A suspension flexibly supports the slider opposite to a surface of a recording medium. A light source is disposed on the suspension for emitting a light beam. An optical waveguide is disposed between the slider and the laser light source for introducing a light beam from the light source into the slider.

摘要翻译： 头万向架组件包括具有用于再现和记录信息到记录介质的表面的再现/再现元件的滑块。 悬架柔性地支撑滑块与记录介质的表面相对。 光源设置在用于发射光束的悬架上。 光滑波导设置在滑块和激光光源之间，用于将来自光源的光束引入滑块。

公开(公告)号：US08284636B2

公开(公告)日：2012-10-09

申请号：US12448262

申请日：2007-12-10

申请人： Manabu Oumi ,  Masakazu Hirata ,  Majung Park

发明人： Manabu Oumi ,  Masakazu Hirata ,  Majung Park

IPC分类号： G11B11/00

CPC分类号： G11B5/02 ,  G11B5/3116 ,  G11B5/314 ,  G11B11/10536 ,  G11B11/10554 ,  G11B11/1058 ,  G11B2005/0002 ,  G11B2005/0021

摘要： A recording head has a conical tip disposed at a distal end thereof configured to oppose a surface of a medium. The conical tip has an opening for generating near-field light and a side surface forming at least a part of an edge portion of the conical tip surrounding the opening. A magnetic recording element generates magnetization inversion in a minute area on the surface of the medium which is heated by application of the near-field light. The magnetic recording element has a main magnetic pole, a secondary magnetic pole, and a dielectric film arranged between the main and secondary magnetic poles. The main magnetic pole comprises a thin film arranged on side surface of the conical tip for providing a magnetic field to the surface of the medium in a substantially vertical direction. The secondary magnetic pole is arranged on a surface of the conical tip opposite to the side surface thereof for absorbing a part of the magnetic field provided from the main magnetic pole.

摘要翻译： 记录头具有设置在其远端处的锥形末端，其构造成与介质的表面相对。 锥形尖端具有用于产生近场光的开口和形成围绕开口的锥形末端的边缘部分的至少一部分的侧表面。 磁记录元件在通过施加近场光加热的介质的表面上的微小区域中产生磁化反转。 磁记录元件具有主磁极，次磁极和布置在主磁极和次磁极之间的电介质膜。 主磁极包括布置在锥形尖端的侧表面上的薄膜，用于在基本上垂直的方向上向介质的表面提供磁场。 次级磁极设置在与其侧表面相对的锥形尖端的表面上，用于吸收从主磁极提供的磁场的一部分。

公开(公告)号：US08054570B2

公开(公告)日：2011-11-08

申请号：US12312614

申请日：2007-11-09

申请人： Masakazu Hirata ,  Manabu Oumi ,  Majung Park

发明人： Masakazu Hirata ,  Manabu Oumi ,  Majung Park

IPC分类号： G11B5/02

CPC分类号： G11B5/02 ,  G11B5/1278 ,  G11B5/314 ,  G11B5/4866 ,  G11B7/1387 ,  G11B11/10536 ,  G11B11/10554 ,  G11B11/1058 ,  G11B2005/001 ,  G11B2005/0021

摘要： A recording head includes a slider, and a recording element fixed to a side surface of the slider on the side of an outflow end and having a main magnetic pole and an auxiliary magnetic pole which generate a recording magnetic field. A spot light generating element includes a core having a reflecting surface that reflects a luminous flux introduced from one end side to the other end side in a direction different from the direction of introduction and a luminous flux condensing unit configured to generate a spot light by propagating the reflected luminous flux to the other end side while condensing the same, and a clad configured to confine the core in the interior thereof. The spot light generating element is fixed adjacently to the recording element in a state in which the other end side is faced toward a magnetic recording medium. A luminous flux guide is arranged in parallel with the slider and allows the luminous flux to be introduced from the one end side into the core whereby the luminous flux condensing unit generates a spot light in the vicinity of the main magnetic pole.

摘要翻译： 记录头包括滑块和记录元件，该记录元件固定在流体端侧滑块的侧面，并具有产生记录磁场的主磁极和辅助磁极。 点光产生元件包括具有反射表面的芯体，该反射表面反射从与引入方向不同的方向从一端侧向另一端侧引入的光束;以及光束聚光单元，其被配置为通过传播产生点光 在将其凝聚的同时向另一端侧的反射光通量以及被配置为将芯限制在其内部的包层。 在另一端朝向磁记录介质的状态下，聚光灯发生元件与记录元件相邻地固定。 光束引导件与滑块平行布置，并且允许光束从一端侧引入芯体，由此光束聚光单元在主磁极附近产生点光。

公开(公告)号：US20100046111A1

公开(公告)日：2010-02-25

申请号：US12312614

申请日：2007-11-09

申请人： Masakazu Hirata ,  Manabu Oumi ,  Majung Park

发明人： Masakazu Hirata ,  Manabu Oumi ,  Majung Park

IPC分类号： G11B21/02 ,  G11B5/60

CPC分类号： G11B5/02 ,  G11B5/1278 ,  G11B5/314 ,  G11B5/4866 ,  G11B7/1387 ,  G11B11/10536 ,  G11B11/10554 ,  G11B11/1058 ,  G11B2005/001 ,  G11B2005/0021

摘要： There is provided a recording head 2 including a slider 20, a recording element 21 fixed to a side surface of the slider 20 on the side of an outflow end and having a main magnetic pole 32 and an auxiliary magnetic pole 30 which generate a recording magnetic field; and a spot light generating element 22 including a core 40 having a reflecting surface 40a configured to reflect a luminous flux L introduced from one end side to the other end side in a direction different from the direction of introduction and a luminous flux condensing unit 40b configured to generate a spot light R by propagating the reflected luminous flux to the other end side while condensing the same, and a clad 41 configured to confine the core in the interior thereof, and fixed adjacently to the recording element in a state in which the other end side is faced toward a magnetic recording medium; and luminous flux introducing means 4 arranged in parallel with the slider and allows the luminous flux to be introduced from the one end side into the core, in which the luminous flux condensing unit generates a spot light in the vicinity of the main magnetic pole.

摘要翻译： 提供了一个记录头2，它包括一个滑块20，一个固定在滑块20侧面上的流出端侧的记录元件21，并具有一个主磁极32和一个辅助磁极30，它产生一个记录磁 领域; 以及点光发生元件22，其包括具有反射面40a的芯体40，该反射面40a被配置为反射从与引入方向不同的方向从一端侧向另一端侧引入的光束L.以及配置 通过将反射的光束传播到另一端而使其聚光而产生聚光R;以及包层41，被配置为将芯限制在其内部，并且在与其相反的状态下相对于记录元件固定 端面朝向磁记录介质; 以及与滑块平行设置的光束引入装置4，并且允许光束从一端侧引入芯，其中光束聚光单元在主磁极附近产生点光。

公开(公告)号：US20100002550A1

公开(公告)日：2010-01-07

申请号：US12448262

申请日：2007-12-10

申请人： Manabu Oumi ,  Masakazu Hirata ,  Majung Park

发明人： Manabu Oumi ,  Masakazu Hirata ,  Majung Park

IPC分类号： G11B11/00

CPC分类号： G11B5/02 ,  G11B5/3116 ,  G11B5/314 ,  G11B11/10536 ,  G11B11/10554 ,  G11B11/1058 ,  G11B2005/0002 ,  G11B2005/0021

摘要： A near field light assisted magnetic recording head 2 includes a conical tip 41 configured to generate a near field light at a distal end thereof, and a magnetic recording element configured to cause a flux reversal in a minute area on a surface of a medium by heating the minute area by the near field light. The magnetic recording element includes a main magnetic pole 32 configured to provide the medium surface with a magnetic field substantially in a vertical direction, a secondary magnetic pole 36 configured to absorb a part of the magnetic field provided from the main magnetic pole 32, and a dielectric film 35 arranged between the main magnetic pole 32 and the secondary magnetic pole 36. The conical tip 41 is provided with a minute gap 15 configured to generate the near sighted field light at the distal end opposing the surface of the medium. The main magnetic pole 32 constitutes at least part of an edge portion surrounding the minute gap 15.

摘要翻译： 近场光辅助磁记录头2包括被配置为在其远端产生近场光的锥形尖端41和被配置为通过加热在介质表面上使微小区域中的光束反转的磁记录元件 分钟区域靠近场灯。 磁记录元件包括：主磁极32，其构造成向介质表面提供基本上在垂直方向上的磁场;次级磁极36，被配置为吸收从主磁极32提供的磁场的一部分;以及 绝缘膜35布置在主磁极32和次级磁极36之间。锥形尖端41设置有微小间隙15，其被构造成在与介质表面相对的远端处产生近视场光。 主磁极32构成围绕微小间隙15的边缘部分的至少一部分。