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    Magnetic head for recording/reproduction, magnetic recording medium, and recording/reproduction apparatus
    2.
    发明授权
    Magnetic head for recording/reproduction, magnetic recording medium, and recording/reproduction apparatus 失效
    用于记录/再现的磁头，磁记录介质和记录/再现装置

    公开(公告)号：US07251101B2

    公开(公告)日：2007-07-31

    申请号：US10751536

    申请日：2004-01-06

    Applicant: Yoshikazu Soeno

    Inventor： Yoshikazu Soeno

    IPC: G11B5/127

    CPC classification number: G11B5/488 ,  G11B5/00813

    Abstract: Both a magnetic recording width and a magnetic reproduction width of a magnetic head are equal to or larger than a combined width of a track width of tracks and double an off-track width of the magnetic head with respect to tracks on a magnetic recording medium during recording and reproduction of recording data, and are equal to or smaller than a width produced by subtracting double the off-track width during recording and reproduction from a combined width of the track width and double a groove width of grooves on the magnetic recording medium.

    Abstract translation: 磁头的磁记录宽度和磁再现宽度都等于或大于磁道的磁道宽度和磁头的偏离磁道宽度相对于磁记录介质上的磁道的组合宽度 记录和再现记录数据，并且等于或小于从磁记录介质上的磁道宽度的组合宽度和凹槽的两倍的凹槽宽度在记录和再现期间减去两倍的偏离磁道宽度而产生的宽度。

    Programmable magnetic memory device fp-mram
    3.
    发明申请
    Programmable magnetic memory device fp-mram 失效
    可编程磁存储器件fp-mram

    公开(公告)号：US20070081381A1

    公开(公告)日：2007-04-12

    申请号：US10529684

    申请日：2003-09-30

    Applicant: Kars-Michiel Lenssen

    Inventor： Kars-Michiel Lenssen

    IPC: G11C11/00

    CPC classification number: G11C7/24 ,  G11B5/00 ,  G11B5/488 ,  G11B5/4907 ,  G11B2005/0002 ,  G11B2005/0021 ,  G11C11/16

    Abstract: A memory device has an information plane (32) for storing data bits in a magnetic state of an electro-magnetic material at an array of bit locations (31). The device further has an array of electro-magnetic sensor elements (51) that are aligned with the bit locations. The information plane (32) is programmable or programmed via a separate magnetic writing device (21). In particular a read-only sensor element (60) is described for a read-only magnetic memory.

    Abstract translation: 存储器件具有信息平面（32），用于存储在位阵列（31）处的电磁材料的磁状态下的数据位。 该装置还具有与位位置对准的电磁传感器元件阵列（51）。 信息平面（32）可通过单独的磁性写入装置（21）进行编程或编程。 特别地，对于只读磁存储器描述了只读传感器元件（60）。

    Thin film magnetic recording inductive write head with laminated write gap
    6.
    发明授权
    Thin film magnetic recording inductive write head with laminated write gap 有权
    薄膜磁记录感应写头与层压写入间隙

    公开(公告)号：US06975485B2

    公开(公告)日：2005-12-13

    申请号：US10890658

    申请日：2004-07-13

    Applicant: Yimin Hsu ,  Ching Hwa Tsang

    Inventor： Yimin Hsu ,  Ching Hwa Tsang

    IPC: G11B5/00 ,  G11B5/09 ,  G11B5/187 ,  G11B5/23 ,  G11B5/31 ,  G11B5/39 ,  G11B5/48 ,  G11B5/127

    CPC classification number: G11B5/3116 ,  G11B5/09 ,  G11B5/187 ,  G11B5/23 ,  G11B5/313 ,  G11B5/3143 ,  G11B5/3146 ,  G11B5/3967 ,  G11B5/488 ,  G11B2005/001 ,  G11B2005/0013 ,  G11B2005/0026

    Abstract: A thin film inductive write head for magnetic recording has a write gap formed as a lamination of alternating layers of a nonmagnetic gap layer and a ferromagnetic spacer layer. There are N gap layers and N−1 spacer layers, with each pole tip of the write head being located adjacent to a gap layer. The spacer layers in the gap structure are formed of a ferromagnetic material with a high saturation moment density (BS) that is close to the BS of the spacer material from which the pole tips are formed. Unlike the pole tips, the spacer layers are not part of a magnetic circuit and are magnetically isolated, i.e., completely surrounded by nonmagnetic gap material. The effect of the spacer layers is to effectively divide the gap into a plurality of smaller gaps. The write head with the laminated gap creates a write bubble that is narrower in the off-track direction and wider in the in-track direction.

    Abstract translation: 用于磁记录的薄膜感应写头具有形成为非磁性间隙层和铁磁间隔层的交替层的叠层的写间隙。 存在N个间隙层和N-1间隔层，写头的每个极尖位于邻近间隙层的位置。 间隙结构中的间隔层由具有高的饱和力矩密度（B SUB S S）的铁磁材料形成，该高铁磁性材料接近间隔材料的B S S， 形成极尖。 与极尖不同，间隔层不是磁路的一部分，并且是磁隔离的，即被非磁性间隙材料完全包围。 间隔层的作用是将间隙有效地分成多个较小间隙。 具有层压间隙的写头产生在偏离磁道方向上较窄的写入气泡，并且在轨道内方向上较宽。

    Method of manufacturing a magnetic head
    7.
    发明申请
    Method of manufacturing a magnetic head 有权
    制造磁头的方法

    公开(公告)号：US20050102821A1

    公开(公告)日：2005-05-19

    申请号：US11013743

    申请日：2004-12-17

    Applicant: Takeo Kagami ,  Kunihiro Ueda ,  Kentaro Nagai ,  Shunji Saruki

    Inventor： Takeo Kagami ,  Kunihiro Ueda ,  Kentaro Nagai ,  Shunji Saruki

    IPC: G11B5/127 ,  G11B5/31 ,  G11B5/39 ,  G11B5/40 ,  G11B5/48 ,  H04R31/00

    CPC classification number: B82Y25/00 ,  B82Y10/00 ,  G11B5/3106 ,  G11B5/3116 ,  G11B5/3903 ,  G11B5/40 ,  G11B5/488 ,  G11B2005/3996 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

    Abstract: A method of manufacturing a magnetic head manufactures a magnetic head having a base, and a laminate stacked on the base and including a magneto-resistive device. The method mechanically polishes a surface of a structure including the base and the laminate close to a magnetic recording medium, wherein the surface of the structure includes an end face of the laminate including an end face of the magneto-resistive device and a surface of the base. Next, the method selectively etches a first region on the surface of the structure close to the magnetic recording medium, wherein the first region includes the surface of the base but does not include the end face of the magneto-resistive device. Subsequently, the method entirely etches the surface of the structure close to the magnetic recording medium.

    Abstract translation: 制造磁头的方法制造具有底座的磁头和堆叠在基座上并包括磁阻装置的层叠体。 该方法将包括基底和层压板的结构的表面机械抛光到靠近磁记录介质的位置，其中该结构的表面包括层压体的端面，该端面包括该磁阻装置的端面和 基础。 接下来，该方法选择性地蚀刻靠近磁记录介质的结构表面上的第一区域，其中第一区域包括基底的表面，但不包括磁阻装置的端面。 随后，该方法完全蚀刻靠近磁记录介质的结构表面。

    Wafer having surface contoured to form air bearing surfaces of a plurality of glide heads
    8.
    发明授权
    Wafer having surface contoured to form air bearing surfaces of a plurality of glide heads 失效
    具有表面轮廓以形成多个滑动头的空气支承表面的晶片

    公开(公告)号：US06891698B2

    公开(公告)日：2005-05-10

    申请号：US10015045

    申请日：2001-12-11

    Applicant: Ramesh Sundaram ,  Wei Yao

    Inventor： Ramesh Sundaram ,  Wei Yao

    IPC: G11B5/48 ,  G11B5/82 ,  G11B21/00 ,  G01B21/30

    CPC classification number: G11B5/488 ,  G11B5/4886 ,  G11B5/82 ,  Y10T29/49041 ,  Y10T29/49048

    Abstract: An improved glide head has an air bearing surface with a flatness of less than about 1 μinch. The air bearing surfaces are formed from the very smooth and flat surface of a wafer, preferably prior to slicing the glide heads from the wafer. Thus, a wafer is formed having a flat surface with a plurality of air bearing surface contoured onto the surface. To form a glide head, a transducer can be mounted on the air bearing surface or the surface opposite the air bearing surface, preferably at the wafer level before slicing.

    Abstract translation: 改进的滑动头具有平坦度小于约1μinch的空气轴承表面。 空气轴承表面由晶片的非常光滑和平坦的表面形成，优选地在将滑动头从晶片切片之前形成。 因此，形成具有平坦表面的晶片，多个空气轴承表面在表面上成像。 为了形成滑动头，换能器可以在切片之前安装在空气轴承表面或与空气轴承表面相对的表面上，优选地安装在晶片级。

    Record head for thermally assisted magnetic recording
    9.
    发明申请
    Record head for thermally assisted magnetic recording 失效
    记录热辅助磁记录头

    公开(公告)号：US20050071859A1

    公开(公告)日：2005-03-31

    申请号：US09881602

    申请日：2001-06-14

    Applicant: Reinder Coehoorn ,  Albert Immink

    Inventor： Reinder Coehoorn ,  Albert Immink

    IPC: G11B11/10 ,  G11B5/00 ,  G11B5/012 ,  G11B5/02 ,  G11B5/127 ,  G11B5/31 ,  G11B5/48 ,  G11B5/50 ,  G11B11/105 ,  G11B13/04 ,  G11B7/08 ,  G11B7/00 ,  G11B7/085 ,  G11B7/09 ,  G11B7/135

    CPC classification number: G11B5/1278 ,  G11B5/00 ,  G11B5/012 ,  G11B5/3103 ,  G11B5/488 ,  G11B13/045 ,  G11B2005/0002 ,  G11B2005/0005 ,  G11B2005/0021 ,  G11B2005/0029

    Abstract: A record head (3) for the thermally assisted magnetic recording on a storage medium (5). The head has an inductive section, which includes a magnetic circuit having a record flux guide (7) ending in a record pole (7a), and an optical section, which includes an optical guide ending in an optical outlet (11a). The optical guide is arranged beside the magnetic circuit and is an optical layer (11) transparent to a selected wavelength. The optical layer is interposed between two cladding layers, of which one is formed by the record flux guide of the magnetic circuit and the other is formed by a layer having an index of refraction smaller than the index of refraction of the optical layer. The record head makes it possible to minimize the time that elapse between the moment of maximal energy absorption in the medium and the moment of recording on the medium in a thermally assisted recording process.

    Abstract translation: 一种用于在辅助存储介质（5）上进行热辅助磁记录的记录头（3）。 磁头具有电感部分，该电感部分包括具有结束于记录极（7a）中的记录磁通引导件（7）的磁路和包括在光学出口（11a）中终端的光导体的光学部分。 光导布置在磁路旁边，是对所选波长透明的光学层（11）。 光学层插入在两个包层之间，其中一个由磁路的记录磁通引导形成，另一个由具有小于光学层的折射率的折射率的层形成。 记录头使得可以最小化介质中最大能量吸收时刻和在热辅助记录过程中在介质上记录的时刻之间经过的时间。

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