公开(公告)号：US09053731B2

公开(公告)日：2015-06-09

申请号：US13033489

申请日：2011-02-23

Applicant: Toshiki Hirano ,  Fu-Ying Huang ,  Jia-Yang Juang ,  Barry Cushing Stipe

Inventor： Toshiki Hirano ,  Fu-Ying Huang ,  Jia-Yang Juang ,  Barry Cushing Stipe

IPC: G11B11/00 ,  G11B5/60 ,  G11B5/31 ,  G11B5/00

CPC classification number: G11B5/6088 ,  G11B5/3106 ,  G11B5/3133 ,  G11B5/314 ,  G11B2005/0021

Abstract: A system according to one embodiment includes a slider adapted for use in a hard disk drive; and a laser coupled to a slider, wherein electrical contacts of the laser are positioned towards or face the slider, wherein light from the laser is emitted towards the slider, wherein the slider acts as a heat sink for the laser.

Abstract translation: 根据一个实施例的系统包括适于在硬盘驱动器中使用的滑块; 以及耦合到滑块的激光器，其中所述激光器的电触点朝向或面向所述滑块定位，其中来自所述激光器的光朝向所述滑块发射，其中所述滑块用作所述激光器的散热器。

公开(公告)号：US08953266B2

公开(公告)日：2015-02-10

申请号：US13593991

申请日：2012-08-24

Applicant: Abhishek Dhanda ,  Toshiki Hirano ,  Tetsuo Semba

Inventor： Abhishek Dhanda ,  Toshiki Hirano ,  Tetsuo Semba

IPC: G11B5/54

CPC classification number: G11B20/1252 ,  G11B5/09 ,  G11B5/5543 ,  G11B5/56 ,  G11B5/59694 ,  G11B2020/1238

Abstract: A data storage device with improved data storage densities, coupled with lower hard error and write-inhibit events is described. A feed-forward write inhibit (FFWI) method enables data tracks to be written more densely. Alternatively, the FFWI method may reduce the hard error and write inhibit events to improve data storage performance. A concept of virtual tracks enables the FFWI method to be applied to the writing of circular data tracks with non-circular servo tracks, or to the writing of non-circular data tracks with PES data from circular servo tracks—in both cases, improvements to performance and/or storage densities are enabled. The FFWI method may also be applied to the case of both non-circular servo and data tracks.

Abstract translation: 描述了具有改进的数据存储密度以及更低的硬错误和禁止写入事件的数据存储设备。 前馈写禁止（FFWI）方法使数据轨道更加密集地写入。 或者，FFWI方法可以减少硬错误和写禁止事件以提高数据存储性能。 虚拟轨道的概念使得FFWI方法可以应用于用非圆形伺服轨迹写入圆形数据轨道，或者用于从圆形伺服轨迹写入具有PES数据的非圆形数据轨迹 - 在这两种情况下，改进 性能和/或存储密度启用。 FFWI方法也可以应用于非圆形伺服和数据轨道的情况。

公开(公告)号：US08908316B2

公开(公告)日：2014-12-09

申请号：US13373970

申请日：2011-12-05

Applicant: Toshiki Hirano ,  Xiaotian Sun

Inventor： Toshiki Hirano ,  Xiaotian Sun

IPC: G11B21/02 ,  G11B5/596

CPC classification number: G11B5/5582 ,  G11B5/59694

Abstract: A disk drive is described that uses a vibration sensor to generate a compensating feed-forward control signal to synchronize the write clock frequency with the modulated data island frequency. A linear vibration sensor is positioned with its sensitivity axis aligned with the tangential direction of a track at the radial position of the write head. The tangential component of the external linear vibration is measured by the sensor. The feed-forward control signal derived from the linear vibration sensor modifies the control voltage input to VCO (voltage controlled oscillator) in the write clock generator to adjust the write clock frequency to compensate for the modulated data island frequency caused by the tangential component of the linear vibration.

Abstract translation: 描述了一种磁盘驱动器，其使用振动传感器来产生补偿前馈控制信号，以使写时钟频率与调制数据岛频率同步。 定位线性振动传感器，其灵敏度轴与写头的径向位置处的轨道的切线方向对齐。 外部线性振动的切向分量由传感器测量。 从线性振动传感器导出的前馈控制信号修改输入到写时钟发生器中的VCO（压控振荡器）的控制电压，以调整写入时钟频率，以补偿由调制的数据岛频率引起的调制数据岛频率 线性振动。

公开(公告)号：US08773796B2

公开(公告)日：2014-07-08

申请号：US13204360

申请日：2011-08-05

Applicant: Toshiki Hirano ,  Xiaotian Sun

Inventor： Toshiki Hirano ,  Xiaotian Sun

IPC: G11B5/09

CPC classification number: G11B5/59616 ,  G11B5/746 ,  G11B20/10222 ,  G11B20/10435 ,  G11B2220/252

Abstract: A system and method of establishing write timing in a disk drive using bit patterned media and a magnetic head with read-write offset in which servoing and writing occur on different tracks with timing offsets. Initially, the distance between the servoing and writing tracks is determined for each track/head position in accordance with head geometry and skew angle. The relative timing errors are then measured by iteratively writing data at timing offset increments to determine the optimal timing offset for the servoing/writing track pair, and then writing the offset to sync fields on the servoing tracks of the disk.

Abstract translation: 使用位图案化介质在磁盘驱动器中建立写时序的系统和方法以及具有读写偏移的磁头，其中伺服和写入在具有定时偏移的不同轨道上发生。 首先，根据头部几何和倾斜角度，为每个轨道/头部位置确定伺服和写入轨迹之间的距离。 然后通过以定时偏移增量迭代地写入数据来测量相对定时误差，以确定伺服/写入磁道对的最佳定时偏移，然后将偏移写入到磁盘的伺服磁道上的同步字段。

公开(公告)号：US08727832B2

公开(公告)日：2014-05-20

申请号：US13246101

申请日：2011-09-27

Applicant: Xing-Cai Guo ,  Ferdinand Hendriks ,  Toshiki Hirano ,  Thomas E. Karis ,  Bruno Marchon

Inventor： Xing-Cai Guo ,  Ferdinand Hendriks ,  Toshiki Hirano ,  Thomas E. Karis ,  Bruno Marchon

IPC: B24B1/00

CPC classification number: B24B37/046

Abstract: Cleaning or polishing magnetic recording media (MRM) may comprise mounting and rotating the MRM on a spindle; circulating a tape adjacent to a surface of the MRM; and applying an electrostatic (ES) voltage to the tape and attracting particles located on the MRM to the tape. The ES voltage may apply an ES load to the tape to force the tape into contact with the surface of the MRM. No mechanical load may be applied to the tape to force the tape into contact with the surface of the MRM. Additionally, a mechanical load may be applied to the tape to force the tape into contact with the surface of the MRM.

Abstract translation: 清洁或抛光磁记录介质（MRM）可能包括将MRM安装和旋转在主轴上; 使邻近MRM表面的磁带循环; 并向磁带施加静电（ES）电压并将位于MRM上的颗粒吸引到磁带上。 ES电压可以将ES负载施加到带上以迫使带与MRM的表面接触。 可能不会对带子施加机械载荷以迫使胶带与MRM的表面接触。 此外，机械负载可以施加到带子上以迫使带与MRM的表面接触。

公开(公告)号：US08427783B2

公开(公告)日：2013-04-23

申请号：US12622093

申请日：2009-11-19

Applicant: Tatsumi Tsuchiya ,  Haruhide Takahashi ,  Akio Takatsuka ,  Hideto Imai ,  Toshiki Hirano

Inventor： Tatsumi Tsuchiya ,  Haruhide Takahashi ,  Akio Takatsuka ,  Hideto Imai ,  Toshiki Hirano

IPC: G11B5/60

CPC classification number: G11B5/4826 ,  G11B5/4873

Abstract: A head-gimbal assembly. The head-gimbal assembly includes a suspension, a microactuator disposed on the suspension, and a head-slider bonded to the microactuator. The head-gimbal assembly further includes a connection pad disposed on the suspension, a connection pad disposed on the microactuator and formed over an edge between a side surface and a top surface of the microactuator to have a bend portion with an obtuse angle, and a metallic interconnection joint for interconnecting the connection pad of the suspension with the connection pad of the microactuator.

Abstract translation: 一个万向节头组件。 头部万向节组件包括悬架，设置在悬架上的微型致动器和粘结到微型致动器的头部滑块。 头部万向节组件还包括设置在悬架上的连接垫，设置在微致动器上并形成在微致动器的侧表面和顶表面之间的边缘上以具有钝角的弯曲部分的连接垫，以及 金属互连接头，用于将悬架的连接垫与微致动器的连接垫相互连接。

公开(公告)号：US20130083420A1

公开(公告)日：2013-04-04

申请号：US13249041

申请日：2011-09-29

Applicant: Thomas R. Albrecht ,  Toshiki Hirano ,  Tetsuo Semba ,  Xiaotian Sun

Inventor： Thomas R. Albrecht ,  Toshiki Hirano ,  Tetsuo Semba ,  Xiaotian Sun

IPC: G11B15/52 ,  G11B5/82

CPC classification number: G11B5/59688 ,  G11B5/59655

Abstract: A magnetic data storage system having a magnetic disk having burst patterns for providing a position error signal (PES) wherein each magnetic burst pattern is offset from an adjacent burst pattern by ¼ track pitch. All of the magnetic bits of the burst patterns can be unipolar magnetized, and the bits of each burst pattern can be aligned with one another in radial and circumferential direction. The magnetic media can be a bit patterned media wherein the magnetic bits of the burst patterns are magnetically isolated portions separated by non-magnetic spaces or non-magnetic material.

Abstract translation: 一种磁数据存储系统，具有具有用于提供位置误差信号（PES）的脉冲串模式的磁盘，其中每个磁脉冲串模式从相邻脉冲串模式偏移1/4声道间距。 突发图案的所有磁位可以是单极磁化的，并且每个突发图案的位可以在径向和圆周方向上彼此对准。 磁介质可以是位图形介质，其中突发图案的磁位是被非磁性空间或非磁性材料隔开的磁隔离部分。

公开(公告)号：US08335047B2

公开(公告)日：2012-12-18

申请号：US12924881

申请日：2010-10-07

Applicant: Toshiki Hirano ,  Jeffrey S. Lille

Inventor： Toshiki Hirano ,  Jeffrey S. Lille

IPC: G11B5/09 ,  G11B5/596

CPC classification number: G11B5/59688 ,  B82Y10/00 ,  G11B5/59655 ,  G11B5/743

Abstract: Patterned discrete track magnetic media compatible with the constraints imposed by the use of self-assembly technology are described in which the PES servo portion of each servo sector has at least one offset segment used for the position error signal (PES). The downtrack length of the PES offset segment systematically varies according to the track position to encode information about the track position usable by the servo system. The downtrack length of the offset segment and, therefore, the time between the corresponding signal shifts is systematically varied from the inner diameter (ID) to the outer diameter (OD) according to the track position to provide coarse information to the servo system even if part of the track ID code cannot be read. Alternative embodiments include a preamble timing mark formed by another offset segment. A self-servo writing method is described using the preamble timing marks.

公开(公告)号：US20120138567A1

公开(公告)日：2012-06-07

申请号：US12957514

申请日：2010-12-01

Applicant: Toshiki Hirano ,  Dan Saylor Kercher ,  Jeffrey S. Lille ,  Kanaiyalal Chaturdas Patel

Inventor： Toshiki Hirano ,  Dan Saylor Kercher ,  Jeffrey S. Lille ,  Kanaiyalal Chaturdas Patel

IPC: G11B5/84

CPC classification number: G11B5/8404 ,  G11B5/855

Abstract: A method for making a patterned-media magnetic recording disk using nanoimprint lithography (NIL) enlarges the size of the imprint resist features after the imprint resist has been patterned by NIL. The layer of imprint resist material is deposited on a disk blank, which may have the magnetic layer already deposited on it. The imprint resist layer is patterned by NIL, resulting in a plurality of spaced-apart resist pillars with sloped sidewalls from the top to the base. An overlayer of a material like a fluorocarbon polymer is deposited over the patterned resist layer, including over the sloped resist pillar sidewalls. This enlarges the lateral dimension of the resist pillars. The overlayer is then etched to leave the overlayer on the sloped resist pillar sidewalls while exposing the disk blank in the spaces between the resist pillars. The resist pillars with overlayer on the sloped resist pillar sidewalls is then used as a mask for etching the disk blank, leaving a plurality of discrete islands on the disk blank.

Abstract translation: 使用纳米压印光刻（NIL）制造图案化介质磁记录盘的方法在印记抗蚀剂已经被NIL图案化之后扩大了抗印刷抗蚀剂特征的尺寸。 印版抗蚀剂材料层沉积在可能具有已经沉积在其上的磁性层的盘坯上。 抗蚀刻层通过NIL进行图案化，从而形成多个间隔开的抗蚀剂柱，其具有从顶部到底部的倾斜的侧壁。 诸如氟碳聚合物的材料的覆盖层沉积在图案化的抗蚀剂层上，包括在倾斜的抗蚀剂柱侧壁上。 这增加了抗蚀柱的横向尺寸。 然后对覆盖层进行蚀刻以将覆盖层留在倾斜的抗蚀剂柱侧壁上，同时在抗蚀剂柱之间的空间中露出盘坯。 然后将具有覆盖层的抗蚀剂柱用于倾斜的抗蚀剂柱侧壁上，用作蚀刻盘坯的掩模，在盘坯上留下多个离散的岛。

公开(公告)号：US08184507B1

公开(公告)日：2012-05-22

申请号：US12969307

申请日：2010-12-15

Applicant: Toshiki Hirano ,  Barry Cushing Stipe ,  Timothy Carl Strand

Inventor： Toshiki Hirano ,  Barry Cushing Stipe ,  Timothy Carl Strand

IPC: G11B11/00

CPC classification number: G11B5/6088 ,  G11B5/1278 ,  G11B5/314 ,  G11B2005/0021

Abstract: A thermally-assisted recording (TAR) slider has an integrated TAR head and an integrated long laser diode, like an external-cavity VCSEL. The TAR head is integrated with the slider at the trailing end and includes an optical waveguide having a grating coupler oriented in a plane generally parallel to the slider trailing end, and a near-field transducer (NFT) at the slider air-bearing surface (ABS) and coupled to the waveguide. A carrier is attached to the slider front end and supports the external-cavity VCSEL so that the linear path of its output laser beam is directed from the slider front end to the slider trailing end. An optical body is attached to the slider trailing end and has an input surface for receipt of the laser radiation from the laser diode, an output surface for directing the laser radiation to the grating coupler, and at least one reflective surface for turning the laser radiation from the input surface to the output surface.

Abstract translation: 热辅助记录（TAR）滑块具有集成的TAR头和集成的长激光二极管，如外腔VCSEL。 TAR头与后端的滑块一体化，并且包括光导体，其具有在大致平行于滑块后端的平面中定向的光栅耦合器，以及在滑块空气轴承表面处的近场换能器（NFT） ABS）并耦合到波导。 载体附接到滑块前端并支撑外腔VCSEL，使得其输出激光束的线性路径从滑块前端引导到滑块后端。 光学主体附接到滑块后端，并且具有用于接收来自激光二极管的激光辐射的输入表面，用于将激光辐射引导到光栅耦合器的输出表面，以及用于转动激光辐射的至少一个反射表面 从输入表面到输出表面。