公开(公告)号：WO2015026504A1

公开(公告)日：2015-02-26

申请号：PCT/US2014/049333

申请日：2014-08-01

Applicant: ORACLE INTERNATIONAL CORPORATION

Inventor： LAKSHMIKUMARAN, Anand, V. ,  TORLINE, Joseph, E.

IPC: G11B5/255 ,  G11B5/187 ,  G11B5/31 ,  G11B5/60

CPC classification number: G11B5/1871 ,  G11B5/008 ,  G11B5/255 ,  G11B5/3106 ,  G11B5/60

Abstract: A read/write head is provided with a body having a body length and a support surface to support data storage media as the data storage media is conveyed longitudinally across the support surface. The support surface of the body is curved about an axis in a widthwise direction of the elongate body. The support surface of the body has a reduced longitudinal length relative to the body length only in an intermediate region. At least one read/write device is provided on the intermediate region of the support surface of the body to read and/or write data on the data storage media as the data storage media is conveyed across the support surface. A tape drive system is provided with the read/write head, the at least one read/write device, and a motor to drive the data storage tape.

Abstract translation: 读/写头设置有具有主体长度和支撑表面的主体，以在数据存储介质纵向地跨过支撑表面传送时支持数据存储介质。 身体的支撑表面围绕细长体的宽度方向的轴线弯曲。 主体的支撑表面仅在中间区域中相对于主体长度具有减小的纵向长度。 当身体的支撑表面的中间区域上至少提供一个读/写设备，以便在数据存储介质被传送穿过支撑表面时读取和/或写入数据存储介质上的数据。 磁带驱动器系统设置有读/写头，至少一个读/写装置和用于驱动数据存储带的电机。

公开(公告)号：WO2012058478A1

公开(公告)日：2012-05-03

申请号：PCT/US2011/058161

申请日：2011-10-27

Applicant: LINK A MEDIA DEVICES CORPORATION ,  BELLORADO, Jason ,  MARROW, Marcus

Inventor： BELLORADO, Jason ,  MARROW, Marcus

IPC: G11B5/187

CPC classification number: G11B20/10009 ,  G11B5/012 ,  G11B5/09 ,  G11B20/10046 ,  G11B2005/0002 ,  G11B2020/1238 ,  G11B2020/1292 ,  G11B2020/1298 ,  G11B2220/2516

Abstract: [0099] Inter-track interference cancelation is disclosed, including: receiving an input sequence of samples associated with a track on magnetic storage; using a processor to generate inter-track interference (ITI) data associated with a first side track including by performing a correlation between the input sequence of samples and a sequence of data associated with the first side track.

Abstract translation: 公开了轨道间干扰消除，包括：接收与磁存储上的轨道相关联的样本的输入序列; 使用处理器来产生与第一侧轨道相关联的轨道间干扰（ITI）数据，该数据包括通过执行输入的采样序列与与第一侧轨道相关联的数据序列之间的相关性。

公开(公告)号：WO01056743A1

公开(公告)日：2001-08-09

申请号：PCT/US2001/003823

申请日：2001-02-06

IPC: B24B37/04 ,  B24B41/06 ,  B24B49/10 ,  B24B49/12 ,  G11B5/10 ,  G11B5/187 ,  G11B5/31 ,  G11B5/39

CPC classification number: B24B49/12 ,  B24B37/048 ,  B24B41/067 ,  B24B49/10 ,  G11B5/102 ,  G11B5/1871 ,  G11B5/3116 ,  G11B5/3903 ,  Y10T29/49048

Abstract: An interfaced carrier assembly including an interface circuit (150) having printed contacts (152) to provide electrical interface or feedback control for lapping operations. The printed contacts are formed on a base material (154) on the interface circuit (150) and interface with terminal pads (138) on a slider bar (100) supported by a carrier plate (126) for lapping feedback control. The interface circuit (150) is assembled with the carrier plate (126) with contacts (152) on the interface circuit (150) aligned with terminal pads (138) on the slider bar (100) supported by the carrier plate (126). Alignment of the terminal pads on the slider bar (100) and contacts (152) on the interface circuit (150) are measured by digital cameras for assembly of the interfaced carrier assembly.

Abstract translation: 一种接口载体组件，包括具有印刷触点（152）的接口电路（150），以提供用于研磨操作的电接口或反馈控制。 印刷的触点形成在接口电路（150）上的基底材料（154）上并且与由支撑板（126）支撑以用于研磨反馈控制的滑块（100）上的端子焊盘（138）相接合。 接口电路（150）与承载板（126）组装，接触电路（150）上的触点（152）与由承载板（126）支撑的滑杆（100）上的端子焊盘（138）对准。 通过数字照相机测量滑杆（100）上的端子焊盘和接口电路（150）上的触头（152）的对准，以组装接口的载体组件。

公开(公告)号：WO01052245A1

公开(公告)日：2001-07-19

申请号：PCT/FR2001/000086

申请日：2001-01-11

IPC: G11B5/127 ,  G11B5/187 ,  G11B5/29 ,  G11B5/23

CPC classification number: G11B5/29 ,  G11B5/127 ,  G11B5/187 ,  G11B5/1871

Abstract: The inventive magnetic head comprises several simple heads whose magnetic circuit has a reduction in area (6A) on its internal surface in the area surrounding the air gap (7). Said magnetic circuit is in a shape of a rectangular loop. This reduction in area causes the magnetic field to be more concentrated in the area of the air gap.

Abstract translation: 本发明的磁头包括几个简单的磁头，其磁路在围绕气隙（7）的区域的内表面上具有减小的面积（6A）。 所述磁路呈矩形环形。 这种面积的减小使得磁场更集中在气隙的区域中。

公开(公告)号：WO01037268A1

公开(公告)日：2001-05-25

申请号：PCT/JP2000/008006

申请日：2000-11-13

IPC: G11B5/127 ,  G11B5/187 ,  G11B5/23 ,  G11B5/82 ,  G11B5/86

CPC classification number: G11B5/865 ,  G11B5/127 ,  G11B5/23 ,  G11B5/82

Abstract: A master information carrier (2) that is made of a ferromagnetic thin film having a shape corresponding to an information signal and has an arrangement pattern is placed on a magnetic recording medium (1). The arrangement pattern of the ferromagnetic thin film is magnetized by a magnetizing head (6), and the arrangement pattern is transferred and recorded as a magnetization pattern on the magnetic recording medium. The magnetizing head has an annular magnetic circuit having a gap. The intensity of the magnetic field applied to the master information carrier by the magnetic flux leaking from the portion other than the gap part is 20% or less of that by the magnetic flux leaking from the gap part. The quality degradation due to conditions of recording is avoided, and uniform recording with less variation depending on the position on the magnetic recording medium is realized.

Abstract translation: 具有与信息信号对应的形状的具有排列图案的铁磁薄膜制成的主信息载体（2）被放置在磁记录介质（1）上。 铁磁性薄膜的排列图案由磁化头（6）磁化，并且将布置图案作为磁化图案转印并记录在磁记录介质上。 磁化头具有具有间隙的环形磁路。 通过从间隙部分以外的部分泄漏的磁通量向主信息载体施加的磁场强度比从间隙部分泄漏的磁通的强度的20％以下。 避免了由于记录条件导致的质量劣化，并且实现了根据磁记录介质上的位置具有较小变化的均匀记录。

公开(公告)号：WO01015147A1

公开(公告)日：2001-03-01

申请号：PCT/JP2000/005650

申请日：2000-08-23

IPC: G11B5/187 ,  G11B5/255 ,  G11B5/33 ,  G11B5/40 ,  G11B5/60 ,  G11B5/725 ,  G11B21/21

CPC classification number: G11B5/725 ,  G11B5/255 ,  G11B5/40 ,  G11B5/6005

Abstract: A magnetic recording and reproducing device comprises a magnetic record medium and a magnetic head including a surface modified chemically with hydrocarbon opposed to the magnetic record medium. The magnetic record medium includes nonmagnetic support having a principal face coated with at least magnetic metal covered with a layer of fluoric lubricant.

Abstract translation: 磁记录和再现装置包括磁记录介质和磁头，磁头包括用与磁记录介质相对的烃化学表面改性的表面。 磁记录介质包括具有涂覆有至少覆盖有氟润滑剂层的磁性金属的主面的非磁性载体。

公开(公告)号：WO2021107972A1

公开(公告)日：2021-06-03

申请号：PCT/US2020/023596

申请日：2020-03-19

Applicant: WESTERN DIGITAL TECHNOLOGIES, INC.

Inventor： NGUYEN, Thao A. ,  HO, Michael Kuok San ,  BAI, Zhigang ,  LI, Zhanjie ,  LE, Quang

IPC: G11B5/187 ,  G11B5/23 ,  G11B5/265

Abstract: The present disclosure generally relates to a magnetic media drive employing a magnetic recording head. The magnetic recording head comprises a first write head, a second write head, at least one read head, and a thermal fly height control element. The first write head is a wide writing write head comprising a first main pole and a first trailing shield. The second write head a narrow writing write head comprising a second main pole, a trailing gap, a second trailing shield, and one or more side shields. The first main pole has a shorter height and a greater width than the second main pole. The second main pole has a curved or U-shaped surface disposed adjacent to the trailing gap. The thermal fly height control element and the at least one read head are aligned with a center axis of the second main pole of the second write head.

公开(公告)号：WO2015126326A1

公开(公告)日：2015-08-27

申请号：PCT/SG2015/000047

申请日：2015-02-16

Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

Inventor： ZHOU, Tiejun ,  ZHANG, Mingsheng ,  CHUNG, Hong Jing ,  WONG, Hon Seng ,  LIU, Zhejie

IPC: G11B5/187

CPC classification number: G11B5/3146 ,  G11B5/235 ,  G11B5/3116 ,  G11B2005/0024

Abstract: There is provided a magnetic head for microwave assisted magnetic recording including: a recording main pole configured to generate a recording magnetic field during operation for writing information to a recording medium, a shield arranged to form a gap to the recording main pole, wherein the recording magnetic field from the recording main pole causes a gap magnetic field in the gap between the recording main pole and the shield, and a spin torque oscillator disposed in the gap between the recording main pole and the shield, the spin torque oscillator comprising a field generation layer configured to generate a high frequency magnetic field for reducing the coercivity of a target recording area of the recording medium. In particular, the spin torque oscillator is configured such that a predetermined crystallographic axis or crystal plane orientation of the field generation layer is substantially aligned with a direction of the gap magnetic field in the field generation layer during operation. There is also provided a corresponding method of fabricating such a magnetic head.

Abstract translation: 提供了一种用于微波辅助磁记录的磁头，包括：记录主极，被配置为在将信息写入记录介质的操作期间产生记录磁场;屏蔽件，被布置成与记录主极形成间隙，其中记录 来自记录主极的磁场在记录主极和屏蔽之间的间隙中产生间隙磁场，以及设置在记录主极和屏蔽之间的间隙中的自旋扭矩振荡器，该自旋扭矩振荡器包括场产生 层，其被配置为产生用于降低记录介质的目标记录区域的矫顽力的高频磁场。 特别地，自旋转矩振荡器被配置为使得场产生层的预定晶轴或晶面取向在操作期间基本上与场产生层中的间隙磁场的方向对准。 还提供了制造这种磁头的相应方法。

公开(公告)号：WO2003010759A1

公开(公告)日：2003-02-06

申请号：PCT/JP2002/007444

申请日：2002-07-23

Applicant: ソニー株式会社 ,  小野寺 修 ,  佐藤 平吉 ,  坂田 勝美 ,  青木 薫

Inventor： 小野寺 修 ,  佐藤 平吉 ,  坂田 勝美 ,  青木 薫

IPC: G11B5/187

CPC classification number: G11B5/1878 ,  G11B5/3106 ,  G11B5/53

Abstract: A magnetic head wherein a slide face (120) for a magnetic tape to slide has a magnetic gap (g) for exchanging information with the magnetic tape, with the track width (Tw) of the magnetic gap (g) regulated by a track width restricting part formed by butting a pair of magnetic core halves (110a, 110b) having track width restricting grooves (111a−111d), respectively, with metal magnetic films (112a−112f) disposed by alignment with the magnetic gap (g) and the track width restricting part, and a groove part (130) formed almost in parallel with the slide direction of the magnetic tape provided in one end part of the magnetic gap (g) shows the relation of the distance L(µm) between a first intersection (P) of one track width restricting groove (111b) formed in one magnetic core half (110a) with one edge of the groove part (130) and a second intersection (Q) of the magnetic gap (g) with the other edge of the groove part (130), L≥11.3 1nI−21.9, to a recording current value I [mA],and prevents demagnetization occurring within a recording track of the magnetic tape.

Abstract translation: 一种磁头，其中用于滑动的磁带的滑动面（120）具有用于与磁带交换信息的磁隙（g），磁隙（g）的磁道宽度（Tw）由轨道宽度 通过与磁隙（g）对准设置的金属磁性膜（112a-112f）分别对接具有轨道宽度限制槽（111a-111d）的一对磁芯半部（110a，110b）而形成的限制部分， 轨道宽度限制部分和与设置在磁隙的一个端部中的磁带的滑动方向几乎平行的槽部（g）表示第一交点之间的距离L（μm）的关系 形成在一个磁芯半部（110a）中的一个轨道宽度限制槽（111b）的一个边缘（130）的沟槽部分（130）的一个边缘的第二交点（Q）和另一个边缘 槽部分（130）L≥11.31nI-21.9到记录电流值I [mA]，以及 防止在磁带的记录轨道内发生消磁。

公开(公告)号：WO01071712A1

公开(公告)日：2001-09-27

申请号：PCT/JP2001/001881

申请日：2001-03-09

IPC: G11B11/105 ,  G11B5/187 ,  G11B5/127

CPC classification number: G11B11/10534 ,  G11B11/10552 ,  G11B11/10558 ,  G11B11/1058

Abstract: A magnetic head for supplying a magnetic field when an information signal is recorded on a recording medium comprises a generally prismatic magnetic core the end of which has a stepped portion and has a cross-sectional area smaller than that of the root part and a coil around the magnetic core. The length of a first side of the cross section of the end ranges from 0.3 mm to 0.45 mm and that of a second side perpendicular to the first side ranges from 0.4 mm to 0.55 mm.

Abstract translation: 当信息信号被记录在记录介质上时，用于提供磁场的磁头包括一个大致棱柱形的磁芯，其一端具有台阶部分，其横截面积小于根部部分的横截面面积， 磁芯。 端部的横截面的第一侧的长度为0.3mm至0.45mm，垂直于第一侧的第二侧的长度为0.4mm至0.55mm。