中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

40 records (took 0.016 seconds)

    Magnetic recording medium having a nitrogen-doped hydrogenated carbon protective overcoat
    12.
    发明授权
    Magnetic recording medium having a nitrogen-doped hydrogenated carbon protective overcoat 失效
    具有氮掺杂氢化碳保护外涂层的磁记录介质

    公开(公告)号：US06312798B1

    公开(公告)日：2001-11-06

    申请号：US09400187

    申请日：1999-09-21

    Applicant: Xiaoding Ma ,  Kevin J. Grannen ,  Jing Gui ,  Jeffrey A. McCann ,  Mark A. Shows

    Inventor： Xiaoding Ma ,  Kevin J. Grannen ,  Jing Gui ,  Jeffrey A. McCann ,  Mark A. Shows

    IPC: G11B572

    CPC classification number: G11B5/72 ,  Y10T428/265 ,  Y10T428/30

    Abstract: Ion beam-deposited, nitrogen-doped C:H films having substantially lower resistivities than undoped ion beam-deposited C:H films and suitable for use as hard, abrasion-resistant overcoat layers for magnetic recording media, such as hard disks, are formed by supplying a mixture of hydrocarbon and nitrogen gases to an ion beam generator. Nitrogen atom content of the films is controlled to within from about 5 to about 25 at. % by appropriate selection of the ratio of hydrocarbon gas flow to nitrogen gas flow. The resultant IBD i-C:HN films exhibit a reduced tendency for charge build-up thereon during hard disk operation by virtue of their lower resistivity vis-à-vis conventional a-C:H materials.

    Abstract translation: 离子束沉积的氮掺杂的C：H膜具有比未掺杂的离子束沉积的C：H膜具有显着更低的电阻率，并且适合用作硬记录介质（例如硬盘）的硬的，耐磨损的外涂层 通过向离子束发生器提供烃和氮气的混合物。 将膜的氮原子含量控制在约5至约25at。 通过适当选择碳氢化合物气体流量与氮气流量的比例来确定。 所得到的IBD i-C：HN膜在硬盘操作期间由于其相对于常规a-C：H材料的较低电阻率而在其上积累电荷降低的倾向。

    Reduced spacing recording apparatus
    13.
    发明授权
    Reduced spacing recording apparatus 有权
    缩小间距记录装置

    公开(公告)号：US08715840B2

    公开(公告)日：2014-05-06

    申请号：US13372398

    申请日：2012-02-13

    Applicant: Kaizhong Gao ,  Bin Lu ,  Bogdan Florin Valcu ,  Xiaoding Ma

    Inventor： Kaizhong Gao ,  Bin Lu ,  Bogdan Florin Valcu ,  Xiaoding Ma

    IPC: G11B5/40 ,  G11B5/738

    CPC classification number: G11B5/72 ,  G11B5/66 ,  G11B5/667 ,  Y10T428/1164

    Abstract: Aspects include recording media with enhanced areal density through reduction of head media spacing, head keeper spacing, or head to soft underlayer spacing. Such aspects comprise replacing currently non-magnetic components of devices, such as interlayers and overcoats with components and compositions comprising magnetic materials. Other aspects relate to magnetic seed layers deposited within a recording medium. Preferably, these aspects, embodied as methods, systems and/or components thereof reduce effective magnetic spacing without sacrificing physical spacing.

    Abstract translation: 方面包括通过减少头部介质间距，头部保持器间距或头部到软下层间距来增加面密度的记录介质。 这些方面包括用包括磁性材料的组件和组合物替换装置的当前非磁性部件，例如中间层和外涂层。 其他方面涉及沉积在记录介质中的磁性种子​​层。 优选地，体现为方法，系统和/或组件的这些方面减少了有效的磁间距，而不牺牲物理间距。

    REDUCED SPACING RECORDING APPARATUS
    14.
    发明申请
    REDUCED SPACING RECORDING APPARATUS 有权
    减少间距录音设备

    公开(公告)号：US20120141834A1

    公开(公告)日：2012-06-07

    申请号：US13372398

    申请日：2012-02-13

    Applicant: Kaizhong Gao ,  Bin Lu ,  Bogdan Florin Valcu ,  Xiaoding Ma

    Inventor： Kaizhong Gao ,  Bin Lu ,  Bogdan Florin Valcu ,  Xiaoding Ma

    IPC: G11B5/667

    CPC classification number: G11B5/72 ,  G11B5/66 ,  G11B5/667 ,  Y10T428/1164

    Abstract: Aspects include recording media with enhanced areal density through reduction of head media spacing, head keeper spacing, or head to soft underlayer spacing. Such aspects comprise replacing currently non-magnetic components of devices, such as interlayers and overcoats with components and compositions comprising magnetic materials. Other aspects relate to magnetic seed layers deposited within a recording medium. Preferably, these aspects, embodied as methods, systems and/or components thereof reduce effective magnetic spacing without sacrificing physical spacing.

    Abstract translation: 方面包括通过减少头部介质间距，头部保持器间距或头部到软下层间距来增加面密度的记录介质。 这些方面包括用包括磁性材料的组件和组合物替换装置的当前非磁性部件，例如中间层和外涂层。 其他方面涉及沉积在记录介质中的磁性种子​​层。 优选地，体现为方法，系统和/或组件的这些方面减少了有效的磁间距，而不牺牲物理间距。

    DIFFUSER/SHUTTER DESIGN FOR VAPOR PHASE LUBRICATION PROCESS
    15.
    发明申请
    DIFFUSER/SHUTTER DESIGN FOR VAPOR PHASE LUBRICATION PROCESS 审中-公开
    用于蒸汽相润滑过程的扩散器/快门设计

    公开(公告)号：US20090274835A1

    公开(公告)日：2009-11-05

    申请号：US12113347

    申请日：2008-05-01

    Applicant: Xiaoding Ma ,  Michael Joseph Stirniman ,  John S. Bujak ,  Jing Gui

    Inventor： Xiaoding Ma ,  Michael Joseph Stirniman ,  John S. Bujak ,  Jing Gui

    IPC: B05D5/00 ,  C23C16/00 ,  C23C16/46 ,  C23C16/458

    CPC classification number: G11B5/8408

    Abstract: This invention relates to an apparatus for vapor lubrication comprising a chamber, a diffuser plate having an array of orifices, a shutter plate having substantially the same pattern of orifices as that of the diffuser plate, a holder for holding an object to be vapor coated in the chamber, and an actuator to move the shutter plate to align the array of orifices of the shutter plate with the array of orifices of the diffuser plate or at least partially block the array of orifices of the diffuser plate with the diffuser plate.

    Abstract translation: 本发明涉及一种用于蒸气润滑的装置，包括一个腔室，一个具有孔阵列的扩散板，一个具有与扩散板基本上相同的孔口图案的挡板，用于保持待蒸汽涂覆的物体的保持架 所述腔室和致动器以移动所述活门板以将所述活门板的孔阵列与所述扩散板的孔阵列对准，或至少部分地阻挡所述扩散板的所述孔的阵列与所述扩散板。

    Dual-layer carbon-based protective overcoats for recording media by filtered cathodic ARC deposition
    16.
    发明授权
    Dual-layer carbon-based protective overcoats for recording media by filtered cathodic ARC deposition 有权
    用于通过过滤阴极ARC沉积记录介质的双层碳基保护涂层

    公开(公告)号：US07175926B2

    公开(公告)日：2007-02-13

    申请号：US10776191

    申请日：2004-02-12

    Applicant: Xiaoding Ma ,  Michael Joseph Stirniman ,  Jing Gui

    Inventor： Xiaoding Ma ,  Michael Joseph Stirniman ,  Jing Gui

    IPC: G11B5/72

    CPC classification number: G11B5/72 ,  C23C14/0605 ,  G11B5/8408 ,  Y10T428/24975 ,  Y10T428/24983 ,  Y10T428/24992

    Abstract: A recording medium, comprising: (a) a substrate having at least one surface; (b) a stacked plurality of thin film layers on the at least one surface and including at least one magnetic or magneto-optical (MO) recording layer; and (c) a protective overcoat layer on an outer surface of an outermost layer of the layer stack, comprising: (i) a first sub-layer layer (c1) of undoped tetrahedral amorphous carbon (ta-C) formed by filtered cathodic arc deposition (FCAD) on the outer surface of the outermost layer of the stacked plurality of thin film layers and having a high mass density of carbon (C) atoms greater than about 2.5 gms/cm3; and (ii) a second sub-layer (c2) of nitrogen-doped tetrahedral amorphous carbon (ta-C:N) formed by FCAD on the undoped ta-C layer and having a high mass density of carbon (C) atoms greater than about 2.0 gms/cm3.

    Abstract translation: 一种记录介质，包括：（a）具有至少一个表面的基底; （b）在所述至少一个表面上堆叠的多个薄膜层，并且包括至少一个磁光或磁光（MO）记录层; （c）在层叠体的最外层的外表面上的保护性外涂层，包括：（i）未掺杂的四面体无定形碳（ta）的第一子层层（c 1） -C）通过过滤的阴极电弧沉积（FCAD）形成在层叠的多个薄膜层的最外层的外表面上，并且具有大于约2.5gms / cm 2的碳（C）原子的高质量密度， 3 ; 和（ii）由FCAD在未掺杂的Ta-C层上形成并且具有高质量密度的由氮化物掺杂的四面体无定形碳（ta-C：N）的第二子层（c 2 N 2） 的碳（C）原子大于约2.0gms / cm 3。

    Apparatus & method for vapor phase lubrication of recording media with reduced lubricant consumption
    18.
    发明申请
    Apparatus & method for vapor phase lubrication of recording media with reduced lubricant consumption 审中-公开
    具有减少润滑剂消耗的记录介质气相润滑的装置和方法

    公开(公告)号：US20080050521A1

    公开(公告)日：2008-02-28

    申请号：US11508843

    申请日：2006-08-24

    Applicant: Xiaoding Ma ,  Michael J. Stimiman ,  Jing Gui

    Inventor： Xiaoding Ma ,  Michael J. Stimiman ,  Jing Gui

    IPC: C23C16/00

    CPC classification number: C23C14/12 ,  G11B5/8408

    Abstract: A vapor source for depositing a thin film of polymeric lubricant on a magnetic or MO recording medium comprises an enclosure comprised of at least one thermally conductive material and including a back wall and a front wall spaced apart by at least one sidewall thereby defining a chamber with an interior space, the front wall comprising a plurality of openings forming a vapor diffusion plate with an array of vapor orifices; at least one liquid reservoir within the interior space for containing a vaporizable liquid material; a heater for heating the interior space and forming a vapor of the liquid material; and a shutter device for controlling flow of vapor through the orifices of the vapor diffusion plate, thereby reducing lubricant consumption.

    Abstract translation: 用于在磁性或MO记录介质上沉积聚合物润滑剂的薄膜的蒸汽源包括由至少一种导热材料组成的外壳，并且包括后壁和由至少一个侧壁隔开的前壁，从​​而限定具有 内部空间，前壁包括形成具有蒸气孔阵列的蒸气扩散板的多个开口; 在内部空间内的至少一个液体储存器，用于容纳可蒸发的液体材料; 用于加热内部空间并形成液体材料的蒸气的加热器; 以及用于控制通过蒸气扩散板的孔口的蒸汽流动的快门装置，从而减少润滑剂消耗。

    Ion beam deposition of diamond-like carbon overcoats by hydrocarbon source gas pulsing
    20.
    发明授权
    Ion beam deposition of diamond-like carbon overcoats by hydrocarbon source gas pulsing 有权
    通过烃源气体脉冲离子束沉积金刚石碳覆盖层

    公开(公告)号：US06392244B1

    公开(公告)日：2002-05-21

    申请号：US09376495

    申请日：1999-08-18

    Applicant: Kevin J. Grannen ,  Xiaoding Ma ,  Jing Gui

    Inventor： Kevin J. Grannen ,  Xiaoding Ma ,  Jing Gui

    IPC: H05H124

    CPC classification number: C23C14/221 ,  C23C14/0605

    Abstract: Stable operation of an ion beam deposition (IBD) station forming part of a multi-station apparatus and formation therein of a tribologically robust DLC-type i-C:H ultra-thin protective overcoat for high recording density magnetic media are achieved by pulsing (i.e., limiting) the flow of a hydrocarbon source gas to the ion beam source to deposition intervals between substrate transfer/pressure cycling. Embodiments include utilizing a circularly-shaped, closed drift, end Hall type ion beam source as part of a multi-process station apparatus, wherein undesirable arcing of the ion beam source during substrate transfer is eliminated, or at least substantially reduced, as a result of the pulsed supply of hydrocarbon source gas to the ion beam source.

    Abstract translation: 形成多工位装置的一部分的离子束沉积（IBD）站的稳定操作，并且在其中形成用于高记录密度磁介质的摩擦学稳健的DLC型iC：H超薄保护外涂层通过脉冲（即， 限制）烃源气体到离子束源的流动到衬底转移/压力循环之间的沉积间隔。 实施例包括利用圆形封闭漂移端霍尔型离子束源作为多处理站装置的一部分，其中在衬底传送期间不期望的离子束源的电弧消除或至少大大减少 将烃源气体脉冲供应给离子束源。

Patent Agency Ranking