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1. 发明授权

US07116517B1 Stitched pole write element with a T-shaped pole tip portion 有权
标题翻译：带有T形极端部分的针脚写入元件
公开(公告)号：US07116517B1
公开(公告)日：2006-10-03
申请号：US10323128
申请日：2002-12-18
申请人： Qing He , Hirohiko Kamimura , Shuhei Otani , Yugang Wang , David J. Seagle
发明人： Qing He , Hirohiko Kamimura , Shuhei Otani , Yugang Wang , David J. Seagle
IPC分类号： G11B5/147
CPC分类号： G11B5/3116 , G11B5/3113 , G11B5/3133
摘要： A T-shaped pole tip portion of an upper pole of a write element for a magnetic disk drive is provided. One end of the pole tip portion, constituting the bottom of the “T,” forms a narrow nose segment at an air bearing surface, while a wing segment at the opposite end of the pole tip portion constitutes the cross-bar top of the “T.” A transition segment extends between the nose segment and the wing segment. A yoke portion of the upper pole includes a surface that is parallel to the air bearing surface and recessed therefrom by a P3R depth. The transition segment does not widen significantly until after the P3R depth, accordingly, the wing segment is recessed from the air bearing surface by more than the P3R depth.
摘要翻译：提供了用于磁盘驱动器的写入元件的上极的T形极尖部分。构成“T”底部的极端部的一端在空气轴承面形成窄的鼻部，而在极尖部的另一端的翼部构成“ T.“ 过渡段在鼻段和翼段之间延伸。上极的轭部包括平行于空气轴承表面并且通过P 3 R深度从其中凹入的表面。在P 3 R深度之后，过渡段不会显着扩大，因此翼段从空气轴承表面凹陷多于P 3 R深度。

2. 发明授权

US06754049B1 Transducers for perpendicular recording with inductive cancellation at MR sensor 有权
标题翻译： MR传感器用于电感消除的垂直记录传感器
公开(公告)号：US06754049B1
公开(公告)日：2004-06-22
申请号：US09978435
申请日：2001-10-16
申请人： David J. Seagle , Yugang Wang
发明人： David J. Seagle , Yugang Wang
IPC分类号： G11B533
CPC分类号： G11B5/1278 , Y10S977/934
摘要： Perpendicular recording and magnetoresistive sensing transducers are disclosed having additional coil windings carrying current in an opposite direction to windings encircled by a core. The magnetic influence of the recording transducer on the sense transducer is reduced or eliminated. The inductance of the coils used to drive the recording transducer is reduced, facilitating high-frequency operation. Moreover, the magnetic flux induced by the coils and transmitted by the recording pole tip is increased, improving recording capabilities.
摘要翻译：公开了垂直记录和磁阻感测传感器，其具有附加的线圈绕组，其沿与芯围绕的绕组相反的方向承载电流。记录传感器对感测传感器的磁影响减小或消除。用于驱动记录换能器的线圈的电感减小，便于高频操作。此外，由线圈感应并由记录极尖传递的磁通量增加，从而提高记录能力。

3. 发明授权

US06912106B1 Writer with a hot seed zero throat and substantially flat top pole 有权
标题翻译：作者有一个热种子零喉咙和基本平坦的顶极
公开(公告)号：US06912106B1
公开(公告)日：2005-06-28
申请号：US10213532
申请日：2002-08-06
申请人： Yingjian Chen , Qing He , Yugang Wang , Kroum Stoev , Francis Liu , Xiaozhong Dang
发明人： Yingjian Chen , Qing He , Yugang Wang , Kroum Stoev , Francis Liu , Xiaozhong Dang
IPC分类号： G11B5/31 , G11B5/147
CPC分类号： G11B5/3163 , G11B5/3116 , G11B5/3143
摘要： A method and system for providing a recording head is disclosed. The method and system include providing a first pole, a second pole, a write gap and at least one coil. The write cap separates the first pole from the second pole. The coil(s) include a plurality of turns and is between the first and second poles. The first pole includes a pedestal that has a first portion and a second portion. The first portion includes a high moment electroplated material. The second portion includes a hot seed layer that has a high moment sputtered material. The second portion of the first pole is adjacent to the write gap.
摘要翻译：公开了一种用于提供记录头的方法和系统。该方法和系统包括提供第一极，第二极，写间隙和至少一个线圈。写帽将第一极与第二极分开。线圈包括多个匝并且在第一和第二极之间。第一极包括具有第一部分和第二部分的基座。第一部分包括高电流电镀材料。第二部分包括具有高力矩溅射材料的热种子层。第一极的第二部分与写入间隙相邻。

4. 发明授权

US08279719B1 Method and system for coupling a laser with a slider in an energy assisted magnetic recording disk drive 有权
标题翻译：用于将能量辅助磁记录磁盘驱动器中的激光与滑块耦合的方法和系统
公开(公告)号：US08279719B1
公开(公告)日：2012-10-02
申请号：US12572060
申请日：2009-10-01
申请人： Yufeng Hu , Yugang Wang
发明人： Yufeng Hu , Yugang Wang
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/105 , G11B5/1278 , G11B5/6088 , G11B2005/0021
摘要： A method and system for providing an energy assisted magnetic recording (EAMR) transducer coupled with a laser are described. The EAMR transducer has an air-bearing surface (ABS) configured to reside in proximity to a media during use. The method and system include providing at least one waveguide, at least one write pole, and at least one coil. The waveguide(s) are for directing the energy from the laser toward the ABS. The write pole(s) each include a write pole tip, a yoke, a back pedestal and a return pole. The write pole tip is coupled to the back pedestal through the yoke. The back pedestal has at least one aperture therein. The aperture(s) are configured to allow the energy from the laser to pass therethrough. The coil(s) are for energizing the at least one write pole.
摘要翻译：描述了一种用于提供与激光器耦合的能量辅助磁记录（EAMR）传感器的方法和系统。 EAMR传感器具有配置成在使用期间驻留在介质附近的空气轴承表面（ABS）。该方法和系统包括提供至少一个波导，至少一个写极点和至少一个线圈。波导用于将来自激光器的能量引导到ABS。写极点各自包括写极端，磁轭，后基座和返回极。写极尖通过轭耦合到后基座。后座具有至少一个孔。孔被配置为允许来自激光器的能量通过。线圈用于激励至少一个写极。

5. 发明授权

US07337530B1 Method for manufacturing a shielded pole magnetic head for perpendicular recording 有权
标题翻译：用于制造用于垂直记录的屏蔽极磁头的方法
公开(公告)号：US07337530B1
公开(公告)日：2008-03-04
申请号：US11699777
申请日：2007-01-30
申请人： Kroum S. Stoev , Francis H. Liu , Yugang Wang
发明人： Kroum S. Stoev , Francis H. Liu , Yugang Wang
IPC分类号： G11B5/147
CPC分类号： G11B5/313 , G11B5/1278 , G11B5/3116 , G11B2005/0029 , Y10T29/49032 , Y10T29/49041 , Y10T29/49046 , Y10T29/4905
摘要： A method of making a perpendicular magnetic recording head for use in a data storage device includes forming a first pole layer, a second pole layer, a third pole layer, and a shield layer of a write section. The first pole layer, second pole layer, third pole layer, and shield layer are formed without using a chemical mechanical polishing process. The method next includes concurrently trimming the shield layer and a write pole that is defined by the third pole layer to a predetermined track width. In the trimming step, the shield layer is used as a mask for the write pole.
摘要翻译：制造用于数据存储装置的垂直磁记录头的方法包括形成写入部分的第一极层，第二极层，第三极层和屏蔽层。在不使用化学机械抛光工艺的情况下形成第一极层，第二极层，第三极层和屏蔽层。该方法接下来包括同时修整屏蔽层和由第三极层限定到预定磁道宽度的写入极。在修整步骤中，屏蔽层用作写入极的掩模。

6. 发明授权

US06724572B1 Inductive transducer with recessed leading pole layer 有权
标题翻译：具有凹陷前导极层的感应传感器
公开(公告)号：US06724572B1
公开(公告)日：2004-04-20
申请号：US10086756
申请日：2002-02-28
申请人： Kroum Stoev , Yugang Wang , Francis Liu , Yingjian Chen , Xiaozhong Dang
发明人： Kroum Stoev , Yugang Wang , Francis Liu , Yingjian Chen , Xiaozhong Dang
IPC分类号： G11B5147
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/187 , G11B5/23 , G11B5/3103 , G11B5/3116 , G11B5/313 , G11B5/3146 , G11B5/332 , G11B5/3909 , G11B5/3967 , G11B2005/3996
摘要： In one aspect, an inductive transducer is disclosed having a leading pole layer and a leading pole tip, with the pole layer being further removed than the pole tip from a media-facing surface. In another aspect, an inductive transducer is disclosed having a magnetic pedestal disposed between a leading pole layer and a leading pole tip, with at least one of the pedestal and pole layer being further removed than the pole tip from a media-facing surface. In another aspect, a leading pole layer or pedestal may have a surface that slopes away from the media-facing surface with increasing distance forward from the leading pole tip.
摘要翻译：在一个方面，公开了一种电感式换能器，其具有引导极层和引导极尖端，其中极层比面向介质的表面比极尖更进一步去除。另一方面，公开了一种电感换能器，其具有设置在引导极层和前导极尖端之间的磁性基座，其中基座和极层中的至少一个比来自面向介质的表面的极尖更进一步地去除。在另一方面，前导极层或基座可以具有远离所述面向介质的表面的表面，所述表面具有与所述引导极端部向前的距离增加的距离。

7. 发明授权

US06377535B1 High numerical aperture optical focusing device having a conical incident facet and a parabolic reflector for use in data storage systems 有权
标题翻译：具有锥形入射面和用于数据存储系统的抛物面反射器的高数值孔径光学聚焦装置
公开(公告)号：US06377535B1
公开(公告)日：2002-04-23
申请号：US09179279
申请日：1998-10-26
申请人： Hong Chen , Chuan He , Carl J. Carlson , Joseph J. Miceli, Jr. , Charles C. Cheng , Yugang Wang
发明人： Hong Chen , Chuan He , Carl J. Carlson , Joseph J. Miceli, Jr. , Charles C. Cheng , Yugang Wang
IPC分类号： G11B7135
CPC分类号： G11B11/10554 , B82Y10/00 , G02B5/1876 , G02B5/1885 , G11B7/122 , G11B7/1353 , G11B7/1372 , G11B7/1374 , G11B7/22 , G11B11/10532 , G11B11/10543 , G11B11/1058 , G11B2007/13722
摘要： An optical focusing device for focusing an incident optical beam onto a focal plane, as a focal spot. The optical focusing device includes an incident central refractive facet upon which an optical beam impinges, and a high-index glass body through which the incident optical beam passes toward a bottom reflective surface. The bottom reflective surface reflects the optical beam through the body, toward a peripheral reflector. The peripheral reflector focuses the optical beam toward a focal plane on which the focal spot is formed. The focal plane is defined within a pedestal that forms part of the optical focusing device, and that extends from the bottom reflective surface. The central facet is conically shaped for refracting the incident optical beam away from the pedestal, onto the bottom reflective surface. The peripheral reflector surrounds the central facet and can have various appropriate shapes, such as an aspherical shape or a tilted parabolic shape, which compensates for the conical factor and aberrations introduced by the central facet. The top surface includes the central facet and the peripheral facet, and can be made substantially flat using diffractive optical elements or Fresnel optics.
摘要翻译：一种用于将入射光束聚焦到焦平面上的聚焦装置作为焦点。光聚焦装置包括光束入射的入射中心折射面和入射光束通过其朝向底部反射表面的高折射率玻璃体。底部反射表面将光束通过主体反射到外围反射器。外围反射器将光束聚焦到其上形成焦点的焦平面上。焦平面被限定在形成光学聚焦装置的一部分的基座内，并且从底部反射表面延伸。中心小面是圆锥形的，用于将入射光束从基座折回到底部反射表面上。外围反射器围绕中心小平面并且可以具有各种适当的形状，例如非球面形状或倾斜的抛物线形状，其补偿由中心小面引入的锥形因子和像差。顶表面包括中心小面和外围小面，并且可以使用衍射光学元件或菲涅耳光学器件使其基本上平坦。

8. 发明授权

US5978319A Thin electro-magnetic coil assembly for attachment to a slider 失效
标题翻译：用于连接到滑块的薄电磁线圈组件
公开(公告)号：US5978319A
公开(公告)日：1999-11-02
申请号：US965340
申请日：1997-11-06
申请人： Yugang Wang , Tatsuaki Hishida
发明人： Yugang Wang , Tatsuaki Hishida
IPC分类号： G11B5/10 , G11B5/17 , G11B5/31 , G11B11/105 , H01F27/28 , H01Q7/00 , G11B11/00
CPC分类号： H01F27/2804 , G11B11/10534 , G11B11/1058 , H01Q7/00 , G11B5/10 , G11B5/17 , G11B5/3106
摘要： A coil assembly for use in an optical or a magneto-optical data storage system includes an undercoat and an electrically conductive coil formed of a length of electrical conductor and deposited and secured to the undercoat by means of available wafer processing techniques. The conductive coil terminates in two bonding pads for providing electrical connection to the coil, such that the coil is capable of sustaining an electrical current in excess of approximately 300 mA. The coil is also capable of generating a vertical magnetic field intensity greater than, or equal to approximately 200 Oersteds, and has a resistance of less than, or equal to approximately 2 ohms. The coil assembly further includes a yoke, and an insulation layer which encapsulates at least part of the conductor. The conductor is formed of a plurality of multi-layered turns, such that a first layer is connected to one contact pad and is looped helically, inwardly, and terminates in an innermost turn with a terminal end. A second layer includes an innermost terminal end that overlays the innermost terminal end of the first layer, in order to establish an electrical contact therewith, and to ensure the continuity of the electrical path formed by the coil. The second layer is coiled into a plurality of concentric helical turns, similar to, and in a same coiling direction as the first layer. The conductor is made of a electrically conductive material and has a substantially uniform square cross-sectional area along its entire length.
摘要翻译：用于光学或磁光数据存储系统的线圈组件包括底涂层和由一定长度的电导体形成并通过可用的晶片处理技术沉积并固定到底涂层的导电线圈。导电线圈终止于两个接合焊盘，用于提供与线圈的电连接，使得线圈能够维持超过约300mA的电流。线圈还能够产生大于或等于约200奥斯特的垂直磁场强度，并具有小于或等于约2欧姆的电阻。线圈组件还包括轭，以及封装至少部分导体的绝缘层。导体由多个多层匝形成，使得第一层连接到一个接触焊盘，并且被螺旋形地向内环绕，并且以终端终止于最内圈。第二层包括覆盖第一层的最内端的最内端，以便与其形成电接触，并确保由线圈形成的电路的连续性。第二层卷绕成与第一层类似并且在与第一层相同的卷取方向上的多个同心螺旋形匝。导体由导电材料制成，并且沿着其整个长度具有基本均匀的正方形横截面积。

9. 发明授权

US5903525A Coil for use with magneto-optical head 失效
标题翻译：用于磁光头的线圈
公开(公告)号：US5903525A
公开(公告)日：1999-05-11
申请号：US844167
申请日：1997-04-18
申请人： Terry McDaniel , Yugang Wang
发明人： Terry McDaniel , Yugang Wang
IPC分类号： G11B5/127 , G11B5/17 , G11B5/31 , G11B7/12 , G11B7/135 , G11B11/105 , G11B11/00
CPC分类号： G11B7/1384 , G11B11/10534 , G11B11/1058 , G11B7/122 , G11B11/10543 , G11B11/10554 , G11B5/1278 , G11B5/17 , G11B5/313
摘要： A planar micro-coil is provided for use with an optical head. The optical head is preferably a flying magneto-optical head. The micro-coil cooperates with a yoke assembly so to as to permit an optimal magnetic flux density to be formed at a surface of a magneto-optical storage location.
摘要翻译：提供平面微型线圈用于光学头。光头优选为飞行磁光头。微型线圈与轭组件配合，以便允许在磁光存储位置的表面处形成最佳的磁通密度。

10. 发明授权

US08792208B1 Method for providing side shields having non-conformal regions for a magnetic recording transducer 有权
标题翻译：用于提供具有用于磁记录换能器的非共形区域的侧屏蔽的方法
公开(公告)号：US08792208B1
公开(公告)日：2014-07-29
申请号：US13481158
申请日：2012-05-25
申请人： Feng Liu , Yugang Wang , Zhigang Bai , Hongzhou Jiang , Tao Pan , Shaoping Li
发明人： Feng Liu , Yugang Wang , Zhigang Bai , Hongzhou Jiang , Tao Pan , Shaoping Li
IPC分类号： G11B5/11
CPC分类号： G11B5/3163 , G11B5/1278 , G11B5/3116 , G11B5/315
摘要： A method and system provide a magnetic recording transducer having air-bearing surface (ABS). The magnetic recording transducer includes a pole, a side shield, a nonmagnetic gap between the side shield and the pole and at least one coil for energizing the pole. The pole has a pole tip proximate to the ABS. The side shield includes at least one nonconformal portion that extends from a throat height in a stripe height direction perpendicular to the ABS and is nonconformal with the pole. The spacing between the nonconformal portion(s) of the side shield and the pole varies based on a distance from the ABS.
摘要翻译：一种方法和系统提供具有空气轴承表面（ABS）的磁记录换能器。磁记录传感器包括极，侧屏蔽，侧屏蔽和极之间的非磁性间隙，以及至少一个用于激励磁极的线圈。极杆具有靠近ABS的极尖。所述侧护罩包括至少一个非整形部分，其从与所述ABS垂直的条带高度方向上的喉部高度延伸并且与所述杆不一致。侧护罩的非共形部分和极之间的间距基于距离ABS的距离而变化。

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