Substrate for magnetic recording medium, magnetic recording medium, and magnetic recording apparatus
    31.
    发明授权
    Substrate for magnetic recording medium, magnetic recording medium, and magnetic recording apparatus 有权
    用于磁记录介质的基板,磁记录介质和磁记录装置

    公开(公告)号:US07760467B2

    公开(公告)日:2010-07-20

    申请号:US11397892

    申请日:2006-04-05

    IPC分类号: G11B5/82

    摘要: It is possible to improve the recording and reproducing S/N ratio, the reproduction signal intensity, and the degree of high density recording. There are provided a plurality of recording tracks formed on a substrate, each recording track being formed of a magnetic material, and non-recording sections formed on the substrate, each non-recording section separating adjacent recording tracks, each recording track including a plurality of recording sections and connecting sections for connecting the recording sections adjacent thereto in a track longitudinal direction, and each connecting section having a cross-sectional area in a track width direction that is smaller than a cross-sectional area in a track width direction of adjacent recording sections.

    摘要翻译: 可以改善记录和再现S / N比,再现信号强度和高密度记录程度。 提供了形成在基板上的多个记录轨道,每个记录磁道由磁性材料形成,而非记录部分形成在基板上,每个非记录部分分隔相邻的记录磁道,每个记录磁道包括多个 记录部分和连接部分,用于在轨道纵向方向上连接与其相邻的记录部分,并且每个连接部分在轨道宽度方向上的横截面积小于相邻记录的轨道宽度方向上的横截面积 部分。

    SUBSTRATE FOR MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING AND REPRODUCING APPARATUS
    32.
    发明申请
    SUBSTRATE FOR MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING AND REPRODUCING APPARATUS 有权
    用于磁记录介质,磁记录介质和磁记录和再现装置的基板

    公开(公告)号:US20090273858A1

    公开(公告)日:2009-11-05

    申请号:US12503458

    申请日:2009-07-15

    IPC分类号: G11B5/187

    摘要: It is possible to improve the recording and reproducing S/N ratio, the reproduction signal intensity, and the degree of high density recording. There are provided a plurality of recording tracks formed on a substrate, each recording track being formed of a magnetic material, and non-recording sections formed on the substrate, each non-recording section separating adjacent recording tracks, each recording track including a plurality of recording sections and connecting sections for connecting the recording sections adjacent thereto in a track longitudinal direction, and each connecting section having a cross-sectional area in a track width direction that is smaller than a cross-sectional area in a track width direction of adjacent recording sections.

    摘要翻译: 可以改善记录和再现S / N比,再现信号强度和高密度记录程度。 提供了形成在基板上的多个记录轨道,每个记录磁道由磁性材料形成,而非记录部分形成在基板上,每个非记录部分分隔相邻的记录磁道,每个记录磁道包括多个 记录部分和连接部分,用于在轨道纵向方向上连接与其相邻的记录部分,并且每个连接部分在轨道宽度方向上的横截面积小于相邻记录的轨道宽度方向上的横截面积 部分。

    Magnetic recording medium and magnetic storage device
    34.
    发明申请
    Magnetic recording medium and magnetic storage device 有权
    磁记录介质和磁存储装置

    公开(公告)号:US20080285174A1

    公开(公告)日:2008-11-20

    申请号:US12076004

    申请日:2008-03-12

    IPC分类号: G11B5/82

    CPC分类号: G11B5/855 G11B5/72

    摘要: A magnetic recording medium includes: a substrate; a recording layer that is formed on the substrate to have a grooved pattern; and a protection layer formed on the recording layer to fill in the grooved pattern, wherein the recording layer is defined to have a servo portion that retains servo data and a recording track portion that retains recording data, and wherein a first film thickness of the protection layer at the servo portion is larger than a second film thickness of the protection layer at the recording track portion by a thickness that is in a range from 1 nm to 10 nm.

    摘要翻译: 磁记录介质包括:基板; 在所述基板上形成有凹槽图案的记录层; 以及形成在所述记录层上以填充所述带槽图案的保护层,其中所述记录层被限定为具有保持伺服数据的伺服部分和保留记录数据的记录轨道部分,并且其中所述保护层的第一膜厚度 伺服部分的层位于记录磁道部分处的保护层的第二膜厚度大于1nm至10nm范围内的厚度。

    Method of manufacturing patterned magnetic recording medium
    38.
    发明申请
    Method of manufacturing patterned magnetic recording medium 审中-公开
    图案化磁记录介质的制造方法

    公开(公告)号:US20070172584A1

    公开(公告)日:2007-07-26

    申请号:US11657720

    申请日:2007-01-25

    IPC分类号: B05D5/12

    CPC分类号: G11B5/855

    摘要: A method of manufacturing a patterned magnetic recording medium includes coating a magnetic film with a resist which is decomposed by exposure to electromagnetic radiation or an electron beam to have a low molecular weight, forming a pattern on the resist by an imprinting method, transferring the pattern to the magnetic film by using the resist having the pattern formed thereon as a mask, and removing the resist by exposing the resist to the electromagnetic radiation or the electron beam.

    摘要翻译: 图案化磁记录介质的制造方法包括:通过用电磁辐射或电子束分解的抗蚀剂涂覆磁性膜以具有低分子量,通过压印方法在抗蚀剂上形成图案,转印图案 通过使用其上形成有图案的抗蚀剂作为掩模,并且通过将抗蚀剂暴露于电磁辐射或电子束来除去抗蚀剂到磁性膜。

    Method for manufacturing magnetic recording medium
    39.
    发明授权
    Method for manufacturing magnetic recording medium 有权
    磁记录介质的制造方法

    公开(公告)号:US07686972B2

    公开(公告)日:2010-03-30

    申请号:US11705037

    申请日:2007-02-12

    CPC分类号: G11B5/855 G11B5/85

    摘要: It is made possible to manufacturing a magnetic recording medium capable of high-density recording at low cost. A method for manufacturing a magnetic recording medium, includes: forming a magnetic film on a substrate; and forming a pattern transfer film, into which a concavo-convex pattern of a magnetic recording medium is to be transferred by imprinting, by vapor-depositing a material for forming the pattern transfer film onto the magnetic film while heating the material at a temperature of 100° C. to 400° C. in a vacuum of 1×10−3 Torr or less.

    摘要翻译: 能够以低成本制造能够高密度记录的磁记录介质。 一种制造磁记录介质的方法,包括:在基板上形成磁膜; 并且通过在形成图案转印膜的材料上气相沉积到磁性膜上形成图案转印膜,通过压印将磁记录介质的凹凸图案转印到该图案转印膜中,同时在 在1×10 -3 Torr或更低的真空中为100℃至400℃。

    Method for producing magnetic recording medium
    40.
    发明授权
    Method for producing magnetic recording medium 失效
    磁记录介质的制造方法

    公开(公告)号:US07662264B2

    公开(公告)日:2010-02-16

    申请号:US11406502

    申请日:2006-04-19

    IPC分类号: C23C14/34

    CPC分类号: G11B5/855

    摘要: A method for producing a magnetic recording medium, includes: forming an SOG film on a surface of a magnetic layer; forming a concavo-convex structure in the SOG film comprising one selected from a group consisting of silica glass, alkylsiloxane polymer, methyl silsesquioxane polymer, hydrogen silsesquioxane polymer and hydro alkylsiloxane polymer; etching the SOG film to expose the surface of the magnetic layer; etching the exposed surface of the magnetic layer by ion milling; and forming a filling layer on the surface of the magnetic layer while leaving a portion of the magnetic layer having been subjected to the ion milling.

    摘要翻译: 一种制造磁记录介质的方法,包括:在磁​​性层的表面上形成SOG膜; 在SOG膜中形成凹凸结构,其包含选自二氧化硅玻璃,烷基硅氧烷聚合物,甲基倍半硅氧烷聚合物,氢倍半硅氧烷聚合物和氢烷基硅氧烷聚合物的一种; 蚀刻SOG膜以暴露磁性层的表面; 通过离子研磨蚀刻磁性层的暴露表面; 并且在磁性层的表面上形成填充层,同时留下已经进行离子铣削的磁性层的一部分。