Magnetic recording medium with backside to decrease recording surface embossment
    2.
    发明授权
    Magnetic recording medium with backside to decrease recording surface embossment 有权
    具有背面的磁记录介质以减少记录表面压纹

    公开(公告)号:US07029774B1

    公开(公告)日:2006-04-18

    申请号:US11135783

    申请日:2005-05-23

    IPC分类号: G11B5/735

    CPC分类号: G11B5/70 G11B5/735

    摘要: A magnetic recording medium including a substrate, a magnetic side, and a backside. The substrate defines a first surface and a second surface opposite the first surface. The magnetic side is formed over the first surface of the substrate and defines a recording surface. The backside is coated on the second surface of the substrate and is configured to decrease embossment of the recording surface. The backside defines a backside surface opposite the substrate. The backside surface having a skew less than about 0.5 and a kurtosis less than about 4.0.

    摘要翻译: 一种包括基板,磁性侧和背面的磁记录介质。 衬底限定第一表面和与第一表面相对的第二表面。 磁性侧形成在衬底的第一表面上并限定记录表面。 背面被涂覆在基板的第二表面上并且被配置为减小记录表面的压印。 背面限定与衬底相对的背面。 背面具有偏斜小于约0.5,峰度小于约4.0。

    Method of manufacturing a magnetic recording medium
    3.
    发明授权
    Method of manufacturing a magnetic recording medium 有权
    制造磁记录介质的方法

    公开(公告)号:US06821574B2

    公开(公告)日:2004-11-23

    申请号:US10367401

    申请日:2003-02-14

    IPC分类号: B05D512

    CPC分类号: G11B5/845 G11B5/70

    摘要: A multiple layer magnetic recording medium exhibiting a marked increase in skirt signal-to-noise ratios, and a method of manufacturing such magnetic recording medium including the steps of forming a lower support layer and a magnetic layer on the substrate; transporting the magnetic recording medium on a non-magnetic carrier in a transport direction; exposing the magnetic recording medium to a first magnetic field of up to about 2500 gauss when the average percent solids of the multiple layers is less than 40% collectively, and exposing the magnetic recording medium to at least one additional magnetic field of from about 3500 to about 7000 gauss as the magnetic recording medium continues to transport when the average percent solids of said multiple layers is from about 43% to about 60% collectively, wherein the magnetic pigment particles in said magnetic layer are oriented in a longitudinal direction.

    摘要翻译: 表现出裙部信噪比显着提高的多层磁记录介质,以及制造这种磁记录介质的方法,包括在基板上形成下支撑层和磁层; 在非磁性载体上沿输送方向传送磁记录介质; 当多层的平均固体百分比小于40%时,将磁记录介质暴露于高达约2500高斯的第一磁场,并将磁记录介质暴露于至少一个额外的磁场约为3500〜 当所述多层的平均固体百分数为约43%至约60%时,磁记录介质继续运输约7000高斯,其中所述磁性层中的磁性颜料颗粒沿纵向定向。

    Method of Forming Barium Ferrite Magnetic Storage Media
    4.
    发明申请
    Method of Forming Barium Ferrite Magnetic Storage Media 审中-公开
    形成钡铁氧体磁存储介质的方法

    公开(公告)号:US20110244118A1

    公开(公告)日:2011-10-06

    申请号:US12753730

    申请日:2010-04-02

    IPC分类号: G11B5/84

    摘要: Magnetic storage media and methods for constructing magnetic storage media that include a multilayer structure are described. In general, the magnetic storage media include a substrate, an underlayer formed over the substrate, and a magnetic layer that includes a plurality of magnetic particles formed over the underlayer. In some examples, a magnetic recording medium can be formed by forming an underlayer over a substrate, drying the underlayer, and heat-curing the underlayer prior to forming a magnetic layer over the underlayer. A magnetic layer can then be formed over the underlayer. The magnetic layer may includes a plurality of magnetic particles selected from the group consisting of magnetic platelet-shaped particles and magnetic particles with an aspect ratio less than or equal to approximately 1.5, may then be formed over the underlayer. By heat-curing the underlayer prior to forming the magnetic layer over the underlayer, the formed magnetic recording medium may exhibit an improved magnetic recording surface for recording and storing data.

    摘要翻译: 描述了磁存储介质和用于构造包括多层结构的磁存储介质的方法。 通常,磁存储介质包括衬底,在衬底上形成的衬底,以及包括形成在衬底上的多个磁性颗粒的磁性层。 在一些实例中,可以通过在衬底上形成底层,在底层上干燥底层和在底层上形成磁性层之前对底层进行热固化来形成磁记录介质。 然后可以在底层上形成磁性层。 磁性层可以包括选自磁性片状颗粒和纵横比小于或等于约1.5的磁性颗粒的多个磁性颗粒,然后可以在底层上形成。 通过在将下一层形成磁性层之前对底层进行热固化,所形成的磁记录介质可以呈现用于记录和存储数据的改进的磁记录表面。

    Barium Ferrite Magnetic Storage Media with Uniform Magnetic Particle Distributions
    5.
    发明申请
    Barium Ferrite Magnetic Storage Media with Uniform Magnetic Particle Distributions 审中-公开
    具有均匀磁性粒子分布的钡铁氧体磁存储介质

    公开(公告)号:US20110244114A1

    公开(公告)日:2011-10-06

    申请号:US12753738

    申请日:2010-04-02

    IPC分类号: G11B5/84

    摘要: Magnetic storage media and methods for constructing magnetic storage media that include a multilayer structure are described. In some examples, a magnetic recording medium can be formed by forming an underlayer over a substrate, drying the underlayer, milling a plurality of magnetic particles, and forming a magnetic layer that includes the plurality of magnetic particles over the underlayer. The magnetic particles may be selected from the group consisting of magnetic platelet-shaped particles and magnetic particles with an aspect ratio less than or equal to approximately 1.5. In addition, the milling process may include milling the plurality of magnetic particles so a magnetic medium formed in the absence of an applied magnetic field exhibits a longitudinal squareness less than or equal to approximately 0.40.

    摘要翻译: 描述了磁存储介质和用于构造包括多层结构的磁存储介质的方法。 在一些实例中,可以通过在基板上形成底层,干燥底层,研磨多个磁性颗粒,以及在底层上形成包括多个磁性颗粒的磁性层来形成磁记录介质。 磁性颗粒可以选自磁性片状颗粒和纵横比小于或等于约1.5的磁性颗粒。 此外,铣削过程可以包括铣削多个磁性颗粒,使得在不存在施加的磁场的情况下形成的磁性介质表现出小于或等于大约0.40的纵向平方度。

    Barium Ferrite Magnetic Storage Media
    6.
    发明申请
    Barium Ferrite Magnetic Storage Media 有权
    钡铁氧体磁存储介质

    公开(公告)号:US20110242698A1

    公开(公告)日:2011-10-06

    申请号:US12753718

    申请日:2010-04-02

    IPC分类号: G11B21/02 G11B5/66

    摘要: Magnetic storage media that include a multilayer structure are described. In general, the magnetic storage media include a substrate, an underlayer that includes a plurality of underlayer particles formed over the substrate, and a magnetic layer that includes a plurality of magnetic particles formed over the underlayer. The magnetic layer may define a saturated magnetization and thickness product less than or equal to approximately 1.00 memu per square centimeter, and the magnetic particles may be selected from the group consisting of magnetic platelet-shaped particles and magnetic particles with an aspect ratio less than or equal to approximately 1.5. In addition, the described magnetic storage media may exhibit minimal interlayer diffusion between the underlayer and magnetic layer. Reduced interlayer diffusion between different layers of a magnetic recording medium may result in an improved magnetic recording surface for recording and storing data.

    摘要翻译: 描述了包括多层结构的磁存储介质。 通常,磁性存储介质包括基板,包括在基板上形成的多个下层颗粒的底层,以及包含形成在该下层上的多个磁性粒子的磁性层。 磁性层可以限定小于或等于约1.00毫秒/平方厘米的饱和磁化和厚度产品,并且磁性颗粒可以选自磁性粒子形颗粒和磁性颗粒,磁性颗粒和磁性颗粒的纵横比小于或等于 等于大约1.5。 此外,所描述的磁存储介质可能在底层和磁性层之间表现出最小的层间扩散。 在磁记录介质的不同层之间减少层间扩散可导致用于记录和存储数据的改进的磁记录表面。

    Barium ferrite magnetic storage media
    7.
    发明授权
    Barium ferrite magnetic storage media 有权
    钡铁氧体磁存储介质

    公开(公告)号:US09324354B2

    公开(公告)日:2016-04-26

    申请号:US12753718

    申请日:2010-04-02

    IPC分类号: G11B5/706 G11B5/714 G11B5/738

    摘要: Magnetic storage media that include a multilayer structure are described. In general, the magnetic storage media include a substrate, an underlayer that includes a plurality of underlayer particles formed over the substrate, and a magnetic layer that includes a plurality of magnetic particles formed over the underlayer. The magnetic layer may define a saturated magnetization and thickness product less than or equal to approximately 1.00 memu per square centimeter, and the magnetic particles may be selected from the group consisting of magnetic platelet-shaped particles and magnetic particles with an aspect ratio less than or equal to approximately 1.5. In addition, the described magnetic storage media may exhibit minimal interlayer diffusion between the underlayer and magnetic layer. Reduced interlayer diffusion between different layers of a magnetic recording medium may result in an improved magnetic recording surface for recording and storing data.

    摘要翻译: 描述了包括多层结构的磁存储介质。 通常,磁性存储介质包括基板,包括在基板上形成的多个下层颗粒的底层,以及包含形成在该下层上的多个磁性粒子的磁性层。 磁性层可以限定小于或等于约1.00毫秒/平方厘米的饱和磁化和厚度产品,并且磁性颗粒可以选自磁性粒子形颗粒和磁性颗粒,磁性颗粒和磁性颗粒的纵横比小于或等于 等于大约1.5。 此外,所描述的磁存储介质可能在底层和磁性层之间表现出最小的层间扩散。 在磁记录介质的不同层之间减少层间扩散可导致用于记录和存储数据的改进的磁记录表面。

    Fluid jet printing recording media layers
    8.
    发明申请
    Fluid jet printing recording media layers 审中-公开
    流体喷墨打印记录介质层

    公开(公告)号:US20080003378A1

    公开(公告)日:2008-01-03

    申请号:US11479786

    申请日:2006-06-30

    IPC分类号: H01F1/00

    CPC分类号: G11B5/842

    摘要: Producing magnetic-recording media includes providing a substrate and forming a plurality of functional layers over the substrate to provide a coated substrate adapted for recording. At least one of the layers of the magnetic-recording media is fluid jet printed as a printed layer. In some embodiments, the printed layer provides at least one of load-bearing functionality, head-cleaning functionality, adhesion-promoting functionality, reaction-promoting functionality, lubricating functionality, surface-cleansing functionality, magnetic-recording functionality, and edge-finishing functionality.

    摘要翻译: 生产磁记录介质包括提供衬底并在衬底上形成多个功能层以提供适于记录的涂覆衬底。 磁记录介质的至少一层是流体喷射印刷为印刷层。 在一些实施方案中,印刷层提供承载功能,头部清洁功能,粘合促进功能,促进反应的功能,润滑功能,表面清洁功能,磁记录功能和边缘修整功能中的至少一个 。