公开(公告)号：US20100061199A1

公开(公告)日：2010-03-11

申请号：US12312613

申请日：2007-11-09

申请人： Masakazu Hirara ,  Manabu Oumi ,  Majung Park

发明人： Masakazu Hirara ,  Manabu Oumi ,  Majung Park

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B11/10536 ,  G11B11/1058 ,  G11B2005/0005 ,  G11B2005/0021

摘要： There is provided a near field light generating element 22 including a polyhedron core 40 having a reflecting surface 40a configured to reflect a luminous flux L in a direction different from the direction of introduction, a luminous flux condensing unit 40b formed by drawing in such a manner that a cross-sectional area orthogonal to a longitudinal direction extending from the one end side toward the other end side is reduced gradually for propagating the reflected luminous flux toward the other end side while condensing the same; a near field light generating unit 40c further drawn from an end portion of the luminous flux condensing unit to the other end side for generating a near field light R from the condensed luminous flux and emitting the same from the other end side toward an outside; and a clad 41 configured to confine the core in the interior thereof by coming into tight contact with a side surface of the core, in which an end surface 40d has a size not exceeding the wavelength of the light and a side surface of the near field light generating unit is light-shielded by a light-shielding film 42.

摘要翻译： 提供了一种近场光发生元件22，其包括多面体芯40，多面体芯40具有被配置成沿与导入方向不同的方向反射光束L的反射面40a，以这种方式绘制形成的光束聚光单元40b 与从一端侧朝向另一端侧的长度方向正交的横截面积逐渐减小，以使反射的光束向另一端侧传播，同时使其聚光; 近场光产生单元40c，其进一步从光束聚光单元的端部被拉伸到另一端侧，用于从冷凝光束产生近场光R并从另一端朝向外部发射; 以及包层41，被配置为通过与芯的侧表面紧密接触来将芯限制在其内部，其中端面40d具有不超过光的波长的尺寸和近场的侧表面 光产生单元被遮光膜42遮光。

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：US08982494B2

公开(公告)日：2015-03-17

申请号：US12737501

申请日：2009-07-10

申请人： Masakazu Hirata ,  Manabu Oumi ,  Majung Park ,  Sachiko Tanabe

发明人： Masakazu Hirata ,  Manabu Oumi ,  Majung Park ,  Sachiko Tanabe

IPC分类号： G11B13/08 ,  G11B5/02 ,  G11B5/31 ,  G11B5/48 ,  G11B5/00

CPC分类号： G11B5/314 ,  G11B5/4853 ,  G11B5/4866 ,  G11B13/08 ,  G11B2005/0005 ,  G11B2005/0021

摘要： A head gimbal assembly has a suspension configured to extend along a surface of a recording medium and to bend and deform in a thickness direction of the recording medium. A slider is provided on a front end side of the suspension so as to confront the surface of the recording medium. A support section supports the slider such that the slider can pivot about two axes parallel to the surface of the recording medium and perpendicular to each other. An optical waveguide is connected to the slider and is configured to introduce a light flux into the slider. A near-field light generating element generates near-field light from the optical flux and causes the near-field light to record information on the recording medium. A positioning section is mounted between the support section and the slider for positioning the optical waveguide relative to the slider.

摘要翻译： 头万向架组件具有被配置为沿着记录介质的表面延伸并且在记录介质的厚度方向上弯曲和变形的悬架。 滑块设置在悬架的前端侧，以便面对记录介质的表面。 支撑部分支撑滑动件，使得滑块可以绕平行于记录介质的表面并且彼此垂直的两个轴线枢转。 光波导连接到滑块，并被配置为将光通量引入到滑块中。 近场光产生元件从光束产生近场光，并使近场光在记录介质上记录信息。 定位部分安装在支撑部分和滑块之间，用于相对于滑块定位光波导。

公开(公告)号：US08050170B2

公开(公告)日：2011-11-01

申请号：US12733982

申请日：2008-10-03

申请人： Majung Park ,  Manabu Oumi ,  Masakazu Hirata

发明人： Majung Park ,  Manabu Oumi ,  Masakazu Hirata

IPC分类号： G11B7/00

CPC分类号： G11B5/314 ,  G11B2005/001 ,  G11B2005/0021

摘要： A near field optical head includes: a slider provided so as to float from a surface of the magnetic recording medium by a predetermined distance, the slider having a facing surface faced to a surface of the magnetic recording medium; a tipped-shaped near field light generating element formed on the facing surface to have a bottom surface in contact with the facing surface, a top surface formed into a flat surface by cutting a top end of a cone or a pyramid, the flat surface being at a predetermined angle with the bottom surface, and a side surface connecting the bottom surface with the top surface for generating near field light from the top surface; a magnetic pole part formed from a main magnetic pole formed on the side surface and an auxiliary magnetic pole facing the main magnetic pole; a thin film-shaped magnetic circuit connected to the magnetic pole part; and a coil wound around the magnetic circuit.

摘要翻译： 近场光学头包括：滑块，其被设置为从磁记录介质的表面浮动预定距离，滑块具有面向磁记录介质的表面的面对表面; 形成在所述面对面上的倾斜形状的近场光产生元件，以具有与所述相对表面接触的底面;通过切割锥体或金字塔的顶端而形成为平坦表面的顶面，所述平面为 与底表面成预定角度，以及将底表面与顶表面连接以产生来自顶表面的近场光的侧表面; 由形成在侧面上的主磁极和与主磁极相对的辅助磁极形成的磁极部; 连接到磁极部分的薄膜状磁路; 以及缠绕在磁路周围的线圈。

公开(公告)号：US20110188355A1

公开(公告)日：2011-08-04

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： G11B13/08

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

摘要： The present invention relates to an information recording and reproduction apparatus which records the information on a disk by heating the disk with near-field light and causing magnetization reversal by applying a recording magnetic field to the disk. A photoelectric composite wiring line 33 is provided in which an optical waveguide 32, which introduces light beam emitted from a laser light source into a slider 2, and a plurality of electric wiring lines 31, which electrically connects the slider 2 and a control unit to each other, are integrally formed. The optical waveguide 32 and the electric wiring line 31 branch off at the distal side of the photoelectric composite wiring line 33 to be routed to the slider 2.

摘要翻译： 本发明涉及一种信息记录和再现装置，其通过用近场光加热盘并通过向盘施加记录磁场而使磁化反转来将信息记录在盘上。 提供了一种光电复合布线33，其中将从激光光源发射的光束引入滑块2的光波导32和将滑块2和控制单元电连接到多个电布线31 彼此一体地形成。 光波导32和电布线31在光电复合布线33的远侧分支，以被引导到滑块2。

公开(公告)号：US07966630B2

公开(公告)日：2011-06-21

申请号：US12309654

申请日：2007-07-20

申请人： Masakazu Hirata ,  Manabu Oumi ,  Majung Park

发明人： Masakazu Hirata ,  Manabu Oumi ,  Majung Park

IPC分类号： G11B7/135 ,  G11B5/00 ,  G11B5/147

CPC分类号： G11B5/314 ,  G11B5/4826 ,  G11B5/4853 ,  G11B5/4866 ,  G11B7/1384 ,  G11B7/1387 ,  G11B11/10534 ,  G11B11/10569 ,  G11B11/1058 ,  G11B2005/001 ,  G11B2005/0021

摘要： There is provided a head gimbal mechanism 2 including a slider 10 placed between a recording medium D and a beam 11 and having a device generating near-field light, gimbal means 12 for fixing the slider to the tip of the beam 11 at a state that it can rotate about two axes which are parallel to the surface of the recording medium and are orthogonal to each other, and a flexible optical waveguide 13 composed of a basic waveguide section 21 placed along the beam and a bent waveguide section 21 that is bent in the Z-direction substantially orthogonal to the surface of the recording medium from the tip of the basic waveguide and connecting to the slider in non-contact with the beam and the gimbal means, the optical waveguide 13 guiding the luminous flux to the slider, wherein the basic waveguide section is placed at a state that at least a predetermined length on the bent waveguide section side relative to the beam is not fixed to the beam.

摘要翻译： 提供了一种头万向架机构2，其包括放置在记录介质D和光束11之间并具有产生近场光的装置的滑块10，用于将滑块固定到梁11的尖端的万向节装置12处于 它可以围绕平行于记录介质表面的两个轴线旋转并且彼此正交;以及柔性光波导13，其由沿着光束放置的基本波导部分21和弯曲的波导部分21组成 所述Z方向与所述基本波导的尖端基本上垂直于所述记录介质的表面，并且与所述光束和所述万向节装置不接触地连接到所述滑块，所述光波导13将所述光通量引导到所述滑块，其中 基本波导部分被放置在相对于光束的弯曲波导部分侧上的至少预定长度不固定到光束的状态。

公开(公告)号：US20110007621A1

公开(公告)日：2011-01-13

申请号：US12733982

申请日：2008-10-03

申请人： Majung Park ,  Manabu Oumi ,  Masakazu Hirata

发明人： Majung Park ,  Manabu Oumi ,  Masakazu Hirata

IPC分类号： G11B7/135

CPC分类号： G11B5/314 ,  G11B2005/001 ,  G11B2005/0021

摘要： A near field optical head includes: a slider provided so as to float from a surface of the magnetic recording medium by a predetermined distance, the slider having a facing surface faced to a surface of the magnetic recording medium; a tipped-shaped near field light generating element formed on the facing surface to have a bottom surface in contact with the facing surface, a top surface formed into a flat surface by cutting a top end of a cone or a pyramid, the flat surface being at a predetermined angle with the bottom surface, and a side surface connecting the bottom surface with the top surface for generating near field light from the top surface; a magnetic pole part formed from a main magnetic pole formed on the side surface and an auxiliary magnetic pole facing the main magnetic pole; a thin film-shaped magnetic circuit connected to the magnetic pole part; and a coil wound around the magnetic circuit.

摘要翻译： 近场光学头包括：滑块，其被设置为从磁记录介质的表面浮动预定距离，滑块具有面向磁记录介质的表面的面对表面; 形成在所述面对面上的倾斜形状的近场光产生元件，以具有与所述相对表面接触的底面;通过切割锥体或金字塔的顶端而形成为平坦表面的顶面，所述平面为 与底表面成预定角度，以及将底表面与顶表面连接以产生来自顶表面的近场光的侧表面; 由形成在侧面上的主磁极和与主磁极相对的辅助磁极形成的磁极部; 连接到磁极部分的薄膜状磁路; 以及缠绕在磁路周围的线圈。

公开(公告)号：US20100091619A1

公开(公告)日：2010-04-15

申请号：US12450320

申请日：2008-03-13

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 ,  G11B5/6088 ,  G11B7/1387 ,  G11B11/10536 ,  G11B11/1058 ,  G11B2005/001 ,  G11B2005/0021

摘要： A near-field optical head includes: a slider which has an opposedly-facing surface which faces a surface of a magnetic recording medium; an optical flux introducing means which introduces the optical flux toward the opposedly-facing surface; a first inclined surface 22 and a second inclined surface 23 which project toward the magnetic recording medium from the opposedly-facing surface in an inclined manner with respect to an optical axis of the introduced optical flux, the first inclined surface and the second inclined surface being arranged adjacent to each other so as to share one side in common; a recording element 13 which is formed on one inclined surface out of both inclined surfaces and includes a main magnetic pole 24 and an auxiliary magnetic pole 26 which are stacked on each other with an insulation film 25 sandwiched therebetween; a metal film 27 which is formed on the other inclined surface out of both inclined surfaces and allows an introduced optical flux to propagate along an interface between the metal film and the other inclined surface and, thereafter, generates a near-field light R from the optical flux; and a magnetic field generating means which generates a recording magnetic field between both magnetic poles.

摘要翻译： 近场光学头包括：具有面向磁记录介质的表面的相对面的滑块; 光通量引入装置，其将光通量朝向相对的表面引入; 第一倾斜面22和第二倾斜面23，其相对于引入光束的光轴从相对面朝向磁记录介质突出，第一倾斜面和第二倾斜面为 彼此相邻布置以共享共同的一侧; 记录元件13，其形成在两个倾斜表面的一个倾斜表面上，并且包括彼此堆叠的绝缘膜25彼此堆叠的主磁极24和辅助磁极26; 形成在两个倾斜表面的另一个倾斜表面上的金属膜27，并且允许引入的光通量沿着金属膜和另一个倾斜表面之间的界面传播，然后从其中产生近场光R 光通量; 以及在两个磁极之间产生记录磁场的磁场产生装置。