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公开(公告)号：US20180033460A1
公开(公告)日：2018-02-01
申请号：US15729531
申请日：2017-10-10
CPC分类号： G11B20/1252 , B82Y20/00 , G02B6/12007 , G11B5/743 , G11B7/0045 , G11B11/002 , G11B20/10
摘要： Data can be encoded in physical medium and represented by shapes having many various physical attributes. In various examples, data points are encoded and represented by the physical shape, color, size, and/or structure of objects. In one embodiment, holes in memory surface substrates represent data. Various attributes of such holes, including depth, profile size, profile shape, and/or angle can represent data.
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公开(公告)号：US09850128B2
公开(公告)日：2017-12-26
申请号：US14488888
申请日：2014-09-17
申请人： Thomas Crawford
发明人： Thomas Crawford
CPC分类号： B82Y30/00 , B82Y40/00 , G11B5/012 , G11B5/68 , G11B5/743 , H01F1/0054 , Y10T428/24876
摘要： Methods for forming a multi-layered nanoscale structure by forming a stack of individual polymeric layers on a substrate are provided. Each individual polymeric layer comprises a cured polymeric material immobilizing a pattern of magnetic nanoparticles. The pattern of magnetic nanoparticles can be different within each individual polymeric layer due to their nature of formation.
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公开(公告)号：US09792946B2
公开(公告)日：2017-10-17
申请号：US13688106
申请日：2012-11-28
CPC分类号： G11B13/04 , B82Y10/00 , G11B5/012 , G11B5/74 , G11B5/743 , G11B5/746 , G11B5/82 , G11B5/855 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021
摘要： A patterned magnetic recording medium for use in heat assisted magnetic recording comprises an electrically conductive heat sink layer and a plurality of discrete magnetic recording elements positioned adjacent to a first surface of the heat sink layer. Disc drives that include the patterned medium and a method of magnetic recording using the patterned media are also included.
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公开(公告)号：US09761262B2
公开(公告)日：2017-09-12
申请号：US12167040
申请日：2008-07-02
申请人： Yiao-Tee Hsia , Lei Li
发明人： Yiao-Tee Hsia , Lei Li
摘要： The present invention relates to a device for magnetic recording that includes a storage medium having a media surface. The media surface has a plurality of lands and recesses between the lands. A polymer layer fills the recesses so that the media surface is substantially planar.
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公开(公告)号：US09728218B2
公开(公告)日：2017-08-08
申请号：US14484829
申请日：2014-09-12
发明人： Shinji Uchida
CPC分类号： G11B5/7325 , G11B5/65 , G11B5/66 , G11B5/708 , G11B5/743 , G11B2005/0021
摘要： A magnetic recording medium for heat-assisted magnetic recording is provided. A magnetic recording layer includes upper and lower magnetic recording layers. The lower magnetic recording layer has a lower granular structure including lower magnetic crystal grains, and a lower non-magnetic portion, that surrounds the lower magnetic crystal grains, mainly composed of carbon. The upper magnetic recording layer has an upper granular structure including upper magnetic crystal grains, and an upper non-magnetic portion, that surrounds the upper magnetic crystal grains, formed from a material selected from the group consisting of silicon nitride, titanium oxide and titanium nitride.
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公开(公告)号：US20170206922A1
公开(公告)日：2017-07-20
申请号：US15474851
申请日：2017-03-30
发明人： Christopher Dennis BENCHER , Roman GOUK , Steven VERHAVERBEKE , Li-Qun XIA , Yong-Won LEE , Matthew D. SCOTNEY-CASTLE , Martin A. HILKENE , Peter I. PORSHNEV
摘要： A method and apparatus for forming magnetic media substrates is provided. A patterned resist layer is formed on a substrate having a magnetically susceptible layer. A conformal protective layer is formed over the patterned resist layer to prevent degradation of the pattern during subsequent processing. The substrate is subjected to an energy treatment wherein energetic species penetrate portions of the patterned resist and conformal protective layer according to the pattern formed in the patterned resist, impacting the magnetically susceptible layer and modifying a magnetic property thereof. The patterned resist and conformal protective layers are then removed, leaving a magnetic substrate having a pattern of magnetic properties with a topography that is substantially unchanged.
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7.发明授权Perpendicular magnetic recording media with magnetic anisotropy gradient and local exchange coupling 有权具有磁各向异性梯度和局部交换耦合的垂直磁记录介质公开(公告)号：US09548074B2
公开(公告)日：2017-01-17
申请号：US14629781
申请日：2015-02-24
发明人： Shaoping Li , Kaizhong Gao , Lei Wang , Wenzhong Zhu , Xiaobin Wang
IPC分类号： G11B5/64 , G11B5/667 , B82Y10/00 , G11B5/74 , G11B5/82 , G11B5/66 , H01F41/02 , G11B5/65 , G11B5/00
CPC分类号： G11B5/667 , B82Y10/00 , G11B5/64 , G11B5/65 , G11B5/656 , G11B5/66 , G11B5/743 , G11B5/746 , G11B5/82 , G11B2005/0029 , H01F41/0206 , Y10S428/90 , Y10T29/4902 , Y10T29/49032 , Y10T29/49067 , Y10T428/12458 , Y10T428/12465 , Y10T428/12931 , Y10T428/26 , Y10T428/265
摘要： A perpendicular magnetic recording medium adapted for high recording density and high data recording rate comprises a non-magnetic substrate having at least one surface with a layer stack formed thereon, the layer stack including a perpendicular recording layer containing a plurality of columnar-shaped magnetic grains extending perpendicularly to the substrate surface for a length, with a first end distal the surface and a second end proximal the surface, wherein each of the magnetic grains has: (1) a gradient of perpendicular magnetic coercivity Hk extending along its length between the first end and second ends; and (2) predetermined local exchange coupling strengths along the length.
摘要翻译： 适用于高记录密度和高数据记录速率的垂直磁记录介质包括具有至少一个具有在其上形成层叠层的表面的非磁性基板，该层堆叠包括垂直记录层，该垂直记录层包含多个柱状磁性颗粒 垂直于衬底表面延伸一段长度，第一端远离表面，靠近表面的第二端，其中每个磁性颗粒具有：（1）垂直磁矫顽力Hk沿其长度在第一 末端和末端; 和（2）沿着长度的预定局部交换耦合强度。
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公开(公告)号：US09269387B2
公开(公告)日：2016-02-23
申请号：US14576001
申请日：2014-12-18
发明人： Akira Kikitsu , Naoko Kihara , Yoshiyuki Kamata , Hiroyuki Hieda
摘要： In one embodiment, there are provided: a substrate; a data area disposed on the substrate and having a plurality of first magnetic dots arrayed in lines in mutually different first, second, and third directions; and a boundary magnetic part having a plurality of first magnetic portions arrayed in a line in the third direction and each having a length longer than that of the first magnetic dot in the third direction, and a second magnetic dot disposed between the first magnetic portions and disposed on extensions in the first and second directions of the first magnetic dots, and disposed along with the data area on the substrate.
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9.发明申请公开(公告)号：US20160012863A1
公开(公告)日：2016-01-14
申请号：US14736759
申请日：2015-06-11
CPC分类号： G11B5/746 , G11B5/743 , G11B5/82 , G11B20/1217 , G11B2005/0021 , G11B2005/0024 , G11B2220/235
摘要： A magnetic recording and reproducing device according to an embodiment includes a magnetic recording medium and a controller. The magnetic recording medium includes in sequence a substrate, a storage layer, an exchange layer, and a surface recording layer. The controller executes following steps (1) to (6): (1) magnetically recording first information on the surface recording layer; (2) transferring the first information recorded on the surface recording layer to the storage layer; (3) magnetically recording second information on the surface recording layer; (4) magnetically reproducing the second information from the surface recording layer; (5) transferring the first information recorded on the storage layer to the surface recording layer; and (6) magnetically reproducing the first information transferred to the surface recording layer.
摘要翻译： 根据实施例的磁记录和再现装置包括磁记录介质和控制器。 磁记录介质依次包括衬底，存储层，交换层和表面记录层。 控制器执行以下步骤（1）至（6）：（1）在表面记录层上磁记录第一信息; （2）将记录在表面记录层上的第一信息传送到存储层; （3）在表面记录层上磁记录第二信息; （4）从表面记录层磁再现第二信息; （5）将记录在存储层上的第一信息传送到表面记录层; 和（6）磁性再现传送到表面记录层的第一信息。
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10.发明授权公开(公告)号：US09082444B2
公开(公告)日：2015-07-14
申请号：US12593243
申请日：2008-03-28
申请人： Shinichi Ishibashi , Akira Shimada
发明人： Shinichi Ishibashi , Akira Shimada
摘要： [PROBLEMS] To appropriately form a DTR medium, a patterned medium, or the like in a manner less likely to cause the problems of prolonged process time and increased cost.[MEANS FOR SOLVING PROBLEMS] A perpendicular magnetic recording layer 22 has a plurality of tracks 102 which define recording regions extending in a scanning direction of a magnetic head and which are arranged in parallel in a direction intersecting with the scanning direction. The perpendicular magnetic recording layer 22 has a guard band region 104 formed on its surface and provided with a groove portion 202 which extends along the tracks 102. In a cross-section of the perpendicular magnetic recording layer 22 taken along a plane perpendicular to the scanning direction, the maximum depth D of the groove portion 202 is in the range of 0.5 to 10 nm with reference to an average height (broken line 302) of the tracks 102 between which the groove portion 202 is interposed. The average height is obtained in the vicinity of the centers of the tracks 102 in a widthwise direction. The width W of a region of the groove portion 202 having a depth equal to or greater than ½ of the maximum depth is in the range of 5 to 30% of a track pitch.
摘要翻译： [问题]以不太可能引起长时间处理和增加成本的问题的方式适当地形成DTR介质，图案化介质等。 用于解决问题的手段垂直磁记录层22具有多个轨道102，其限定在磁头的扫描方向上延伸并且沿与扫描方向相交的方向平行设置的记录区域。 垂直磁记录层22具有在其表面上形成的保护带区域104，并且设置有沿着轨道102延伸的槽部分202.在沿着与扫描垂直的平面截取的垂直磁记录层22的横截面中 方向上，凹槽部分202的最大深度D相对于插入凹槽部分202的轨道102的平均高度（虚线302）在0.5至10nm的范围内。 在轨道102的宽度方向的中心附近获得平均高度。 具有等于或大于最大深度的1/2的深度的槽部分202的区域的宽度W在轨道间距的5至30％的范围内。
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