公开(公告)号：US12106786B2

公开(公告)日：2024-10-01

申请号：US17978480

申请日：2022-11-01

Applicant: SAE Magnetics (H.K.) Ltd.

Inventor： Ryuji Fujii ,  Shi Xiong Chen ,  Zeng Hui Zhang ,  Yong Lei ,  Yong Jun Zhang

IPC: G11B5/31 ,  G11B5/127 ,  G11B5/49

CPC classification number: G11B5/3169 ,  G11B5/1276 ,  G11B5/3173 ,  G11B5/49

Abstract: The present disclosure discloses a magnetic head, a head gimbal assembly, a hard disk drive, and a method for processing a magnetic head. The method comprises irradiating at a fixed point proximal to the read/write part with a laser irradiation device until the read head and the write head are thermally expanded; orientating air bearing surfaces of a plurality of magnetic heads forming a magnetic strip toward a lapping surface of a lapping device after laser irradiation, holding the air bearing surfaces in place, lapping with the lapping device until the air bearing surfaces are coplanar; and disassembling the magnetic strip to obtain a lapped magnetic head. Through laser heating induced compensation, the heights of lapped read head and write head of the magnetic head meet their respective target values, ensuring the normal reading and writing of the storage medium of the magnetic disk.

公开(公告)号：US08279545B2

公开(公告)日：2012-10-02

申请号：US11799738

申请日：2007-05-01

Applicant: W. Daniel Hillis ,  Roderick A. Hyde ,  Muriel Y. Ishikawa ,  Edward K. Y. Jung ,  Nathan P. Myhrvold ,  Lowell L. Wood, Jr.

Inventor： W. Daniel Hillis ,  Roderick A. Hyde ,  Muriel Y. Ishikawa ,  Edward K. Y. Jung ,  Nathan P. Myhrvold ,  Lowell L. Wood, Jr.

IPC: G11B5/86 ,  G11B15/12

CPC classification number: G11B5/49 ,  G11B5/5526 ,  G11B5/86 ,  G11B7/08547 ,  G11B7/12 ,  G11B7/14 ,  G11B21/003 ,  G11B21/083

Abstract: A method of transferring data of one or more rotatable data storage devices includes but is not limited to rotating the at least one rotatable data storage device; transferring the data between a plurality of stationary data transfer heads and the one or more rotatable data storage devices; and using one or more computer programs to determine which of the plurality of stationary data transfer heads are to be used to transfer a first portion of the data between the plurality of stationary data transfer heads and the one or more rotatable data storage devices and the direction in which the first portion of the data is to be transferred. In addition to the foregoing, other method aspects are described in the claims, drawings, and text forming a part of the present application. Other methods and apparatuses are also disclosed.

Abstract translation: 传送一个或多个可旋转数据存储装置的数据的方法包括但不限于旋转所述至少一个可旋转数据存储装置; 在多个固定数据传送头与一个或多个可旋转数据存储装置之间传送数据; 并且使用一个或多个计算机程序来确定多个固定数据传送头中的哪一个将用于在多个固定数据传送头与一个或多个可旋转数据存储装置之间传送数据的第一部分以及方向 其中数据的第一部分将被传送。 除了上述之外，在权利要求，附图和形成本申请的一部分的文本中描述了其它方法方面。 还公开了其它方法和装置。

公开(公告)号：US20040130815A1

公开(公告)日：2004-07-08

申请号：US10690569

申请日：2003-10-23

Applicant: Charles Frederick James Barnes

Inventor： Charles Frederick James Barnes

IPC: G11B027/36

CPC classification number: G11B21/003 ,  G11B5/49 ,  G11B7/14

Abstract: An information storage apparatus comprises a one or more storage media 168 which include a plurality of information tracks. Each storage medium 168 has a head assembly 170 having a substantially planar surface and a plurality of read/write heads positioned in registry with said information tracks. The read/write heads are arranged substantially in the plane of the planar surface. The information storage medium 168 and the head assembly 170 are arranged in mutually sliding abutment such that the read/write heads are substantially in sliding contact with the outer surface of the information storage medium in use. In another aspect an information storage and retrieval apparatus comprises an information storage medium 168 comprising an information storage area, and an array 170 of information read and/or write heads. The information storage medium 168 and array of heads 170 are arranged to be oscillated with respect to each other in use such that each region of the information storage area is aligned with at least one of the read/write heads during the oscillation.

Abstract translation: 信息存储装置包括一个或多个包括多个信息轨道的存储介质168。 每个存储介质168具有头部组件170，头部组件170具有基本上平坦的表面以及与所述信息轨迹对齐定位的多个读取/写入头。 读/写头基本上布置在平面的平面中。 信息存储介质168和头组件170被布置成相互滑动的邻接，使得读/写头在使用中基本上与信息存储介质的外表面滑动接触。 在另一方面，信息存储和检索装置包括信息存储介质168，其包括信息存储区域，以及信息读取和/或写入头部的阵列170。 信息存储介质168和磁头阵列170被布置为在使用中相对于彼此振荡，使得信息存储区域的每个区域在振荡期间与读/写头中的至少一个对准。

公开(公告)号：US20020012813A1

公开(公告)日：2002-01-31

申请号：US09961292

申请日：2001-09-25

Inventor： Satoshi Watanabe ,  Toshiyuki Onogi ,  Masahiko Ichimura ,  Yoshimasa Ono ,  Tomihiro Hashizume ,  Yasuo Wada ,  Yuji Suwa

IPC: G11B005/39

CPC classification number: B82Y30/00 ,  B82B1/00 ,  B82B3/00 ,  B82Y15/00 ,  B82Y25/00 ,  B82Y40/00 ,  G11B5/00 ,  G11B5/3945 ,  G11B5/3961 ,  G11B5/3967 ,  G11B5/49 ,  G11B5/4984 ,  G11B2005/0005 ,  H01F1/0036 ,  H01F1/0302 ,  Y10S428/90 ,  Y10T428/1136 ,  Y10T428/1193 ,  Y10T428/32

Abstract: A ferromagnetic material can be formed in a very small size on the order of an atomic size and is capable of being stably magnetized. The ferromagnetic material comprises basic unit structures each consisting of a first atom (11), a second atom (12) of the same kind as the first atom (11), and a third atom (or atomic group) (13) of the same kind as the first atom (11) or of a kind different from that of the first atom (11). In each of the basic unit structures, the atoms are arranged on a surface of a substrate so that a chemical bond (14) is formed between the first atom or molecule and the third atom or molecule, a chemical bond (14) is formed between the second atom or molecule and the third atom or molecule, and a chemical bond or an electron path (15) not passing the third atom is formed between the first and the second atom or molecule, wherein said third atoms or molecules consist of As atoms.

公开(公告)号：US06249824B1

公开(公告)日：2001-06-19

申请号：US09210466

申请日：1998-12-12

Applicant: Joseph Reid Henrichs

Inventor： Joseph Reid Henrichs

IPC: G06F1300

CPC classification number: G06F3/0616 ,  G06F3/0634 ,  G06F3/0676 ,  G11B5/012 ,  G11B5/4886 ,  G11B5/49 ,  G11B5/4969 ,  G11B5/4976

Abstract: A magnetic data storage fixed hard disk drive using stationary Microhead Array Chips in place of conventional Flying-Heads and Rotary Voice-Coil Actuators or other Servo-Tracking mechanisms. Every Microhead Array Chip has a minimum of one thousand or maximum of four billion individual and addressable microhead read and write data-transducers built into it. The hard disk drive unit assembly that uses the Microhead Array Chip approach will have within its assembly as few as two or as many as twenty-eight installed Microhead Array Chips. The Microhead Array Chip hard disk drive unit assemblies will have at least one storage disk-platter with two disk-platter data-surfaces containing a multiplicity of concentric data-tracks that rotates at a substantially constant angular velocity. While Microhead Array Chips are made stationary by specially designed circuit boards, that positions a Microhead Array Chip over each of two data-surfaces of every disk-platter within the hard disk drive assembly. The total number of microheads within a stationary positioned Microhead Array Chip's Microhead Array is what determines the total number of available tracks on and across a data-platter's data-surface (i.e., 65,000 microheads would equal 65,000 cylinder/tracks).

Abstract translation: 磁性数据存储固定硬盘驱动器使用固定的微型阵列芯片代替传统的飞头和旋转音圈驱动器或其他伺服跟踪机制。 每个微针阵列芯片在其中内置有至少一千个或者最多四十亿个单独和可寻址的微头读写数据传感器。 使用微头阵列芯片方法的硬盘驱动器单元组件在其组装中将具有少至两个或多达二十八个安装的微头阵列芯片。 微头阵列芯片硬盘驱动器单元组件将具有至少一个存储盘盘，其中两个盘片数据表面包含以基本恒定的角速度旋转的多个同心数据轨道。 虽然Microhead Array芯片由专门设计的电路板固定，但是将Microhead阵列芯片放置在硬盘驱动器组件中每个磁盘盘的两个数据表面的每一个上。 固定定位的Microhead阵列芯片的Microhead阵列中的微头总数决定了数据盘数据表面上和跨数据盘的数据表面上的可用轨迹总数（即，65,000微头将等于65,000个圆柱/轨道）。

公开(公告)号：US5872451A

公开(公告)日：1999-02-16

申请号：US854122

申请日：1997-05-09

Applicant: Nahum Guzik

Inventor： Nahum Guzik

IPC: G11B5/455 ,  G11B5/49 ,  G11B25/04 ,  G11B33/12 ,  G01R33/12 ,  G11B5/56

CPC classification number: G11B33/12 ,  G11B5/49

Abstract: A method and a system for fixing and positioning a headstack (100, 200, 300, 400) on a headstack tester by utilizing a vacuum chuck (105, 106, 208, 310). The vacuum chuck engages headstack. This engagement determines the exact position of the magnetic heads (24a, 24b . . . ) supported by the headstack with respect to the working surfaces (S1, S2, S3) of magnetic disks ((111a, 111b, 111c) of the disk pack of the tester.

Abstract translation: 一种用于通过利用真空吸盘（105,106,208,310）将头堆（100,200,300,400）固定和定位在头部测试仪上的方法和系统。 真空吸盘与头堆接合。 该接合决定了由磁头组件支撑的磁头（24a，24b ...）相对于磁盘组（（111a，111b，111c））的工作表面（S1，S2，S3）的确切位置 的测试人员

公开(公告)号：US5652685A

公开(公告)日：1997-07-29

申请号：US574812

申请日：1995-12-19

Applicant: John W. Ketchersid, III

Inventor： John W. Ketchersid, III

IPC: G11B5/48 ,  G11B5/49 ,  G11B17/038 ,  G11B17/32 ,  G11B21/00 ,  G11B25/04 ,  G11B33/12 ,  G11B5/27

CPC classification number: G11B33/121 ,  G11B17/038 ,  G11B17/32 ,  G11B21/003 ,  G11B25/043 ,  G11B5/4806 ,  G11B5/4886 ,  G11B5/49

Abstract: A high density fixed head disk drive is shown. Small track width and small inter-track spacing is accomplished by small head-to-media distances, which are maintained by fabricating both read/write heads and demultiplexer circuitry on a single planer substrate constituting a head mount disk. Spacing between the head mount disk and media disk is controlled by placing the head mount disk on the periphery of annular housings that are slightly thicker than the media disk and thus controlling the spacing there between. Close inter-track spacing is provided by angularly offsetting radial groups of read/write heads on the head mount disk. Construction of a head mount disk and media disk of the same material provides physical thermal tracking thus minimizing track misalignment problems due to temperature variations. Additionally, shorter duration writing pulses are employed on outer tracks to increase information density per unit area of the media disk.In an alternate embodiment, head-to-media separation is eliminated by fabricating heads that extend to make contact with an opposing media disk. Contact is maintained with the media disk by angling the lash heads in the direction of media disk travel and flexing them against the same.

Abstract translation: 显示了高密度固定磁头磁盘驱动器。 通过在组成磁头安装盘的单个平面基板上制造读/写磁头和解复用器电路来维持小的磁头间距和小的磁道间距。 通过将头部安装盘放置在比介质盘稍厚的环形壳体的周边上并由此控制其间的间距来控制头部安装盘和介质盘之间的间距。 通过角度偏移磁头安装盘上读/写磁头的径向组来提供关闭轨道间距。 构造相同材料的头部安装盘和介质盘提供物理热跟踪，从而最小化由于温度变化导致的轨迹不对准问题。 此外，在外部轨道上采用较短持续时间的写入脉冲以增加媒体盘的每单位面积的信息密度。 在替代实施例中，通过制造扩展以与相对介质盘接触的头来消除头对媒体分离。 通过沿着介质盘行进的方向倾斜睫毛头并使其相对于其而使其与介质盘保持接触。

公开(公告)号：US5025341A

公开(公告)日：1991-06-18

申请号：US342879

申请日：1989-04-25

Applicant: Philippe Bousquet ,  Jean-Claude Lehureau

Inventor： Philippe Bousquet ,  Jean-Claude Lehureau

IPC: G11B5/127 ,  G11B5/245 ,  G11B5/49 ,  G11B15/12

CPC classification number: G11B15/12 ,  G11B5/245 ,  G11B5/49

Abstract: The thermo-magnetic head disclosed has a gap with magnetic properties at ambient temperature. This gap is heated above its Curie temperature in order to make it lose its magnetic property. The pole pieces on either side of the gap form electrical conductors which convey the heating current of this gap.

Abstract translation: 所公开的热磁头在环境温度下具有磁性能的间隙。 该间隙被加热到高于其居里温度以使其失去其磁性。 间隙两侧的极片形成传导该间隙加热电流的电导体。

公开(公告)号：US4300177A

公开(公告)日：1981-11-10

申请号：US1045

申请日：1979-01-04

Applicant: Gerrit J. Koel ,  Frederik W. Gorter ,  Jan T. Gerkema

Inventor： Gerrit J. Koel ,  Frederik W. Gorter ,  Jan T. Gerkema

IPC: G11B5/39 ,  G11B5/48 ,  G11B5/49 ,  G11B5/58 ,  G11B15/12 ,  G11B5/12 ,  G11B5/30

CPC classification number: G11B5/3925 ,  G11B15/12 ,  G11B5/3967 ,  G11B5/488 ,  G11B5/49 ,  G11B5/58

Abstract: A thin-film magnetic head for writing information in and reading information from a track of a magnetic recording medium in which the head comprises a magnetically permeable yoke having two limbs between which a writing/reading gap is formed. In a construction in which the limbs of the yoke overlap each other at the area of the writing/reading gap, they are bridged by a magneto-resistive reading element at a location remote from the reading/writing gap. A conductor is provided in some forms of the invention which extends intermediate the laterally overlapping limbs. This conductor is utilized for producing a writing flux in the magnetic yoke. Another conductor may be provided which extends through a window or opening in the yoke, which is remote from the reading/writing gap. This other conductor is utilized during writing operation to maximize efficiency.

Abstract translation: 一种薄膜磁头，用于将信息写入磁记录介质的轨道中并从其中读取信息，其中该磁头包括具有两个分支之间形成写入/读取间隙的磁轭。 在这种结构中，轭的四肢在写入/读取间隙的区域彼此重叠，它们在远离读/写间隙的位置由磁阻读取元件桥接。 在本发明的一些形式中提供导体，其在横向重叠的肢体之间延伸。 该导体用于在磁轭中产生写入磁通。 可以提供另一个导体，其延伸穿过偏离读/写间隙的磁轭中的窗口或开口。 在写入操作期间使用另一个导体来最大限度地提高效率。

公开(公告)号：US3553391A

公开(公告)日：1971-01-05

申请号：US3553391D

申请日：1968-01-08

Applicant: BOLT BERANEK & NEWMAN

Inventor： KARNOPP DEAN C ,  HEINE JOHN C

IPC: G11B5/10 ,  G11B5/49 ,  G11B23/04 ,  G11B5/24

CPC classification number: G11B5/10 ,  G11B5/49 ,  G11B23/04

Abstract: This disclosure deals with a novel combination of magnetic tape cartridge with read or record head which permits magnetic coupling through the wall of the cartridge with no loss in the quality of the aperture of the head and with only a negligible loss in amplitude of the signal, as compared with the operation of conventional read-record heads, but with the distinct advantage that the cartridge, including drive and pinch rollers, is completely sealed against the outside environment.