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31. 发明申请

US20120236694A1 PATTERNED PERPENDICULAR MAGNETIC RECORDING MEDIUM WITH ULTRATHIN OXIDE FILM AND REDUCED SWITCHING FIELD DISTRIBUTION 有权
标题翻译：具有超氧化物膜的图形磁性记录介质和减少的开关场分布
公开(公告)号：US20120236694A1
公开(公告)日：2012-09-20
申请号：US13049124
申请日：2011-03-16
申请人： Olav Hellwig , Ernesto E. Marinero , Dieter K. Weller
发明人： Olav Hellwig , Ernesto E. Marinero , Dieter K. Weller
IPC分类号： G11B11/00 , G11B5/127 , G11B5/82 , G11B5/667 , G11B5/73
CPC分类号： G11B5/746 , G11B5/7325 , G11B5/855
摘要： A patterned perpendicular magnetic recording disk has a Co-alloy recording layer patterned into discrete data islands arranged in concentric tracks and exhibits a narrow switching field distribution (SFD). The disk includes a substrate, a NiTa alloy planarizing layer on the substrate, a nonmagnetic Ru-containing underlayer on the planarizing layer, an oxide-free Co alloy magnetic recording layer, and an ultrathin oxide film between the Ru-containing layer and the Co-alloy magnetic recording layer. The oxide film may be an oxide selected from a Ta-oxide, a Co-oxide and a Ti-oxide, and is ultrathin so that it may be considered a discontinuous film. The planarizing layer and ultrathin oxide film improve the growth homogeneity of the Co-alloy recording layer, so that the patterned disk with data islands shows significantly reduced SFD.
摘要翻译：图案化的垂直磁记录盘具有图案化为离散数据岛的Co合金记录层，其布置在同心轨道中并呈现窄的开关场分布（SFD）。该盘包括衬底，衬底上的NiTa合金平面化层，平坦化层上的非磁性含Ru底层，不含氧化物的Co合金磁记录层以及Ru含有层和Co之间的超薄氧化物膜合金磁记录层。氧化膜可以是选自Ta氧化物，Co氧化物和Ti氧化物的氧化物，并且是超薄的，因此可以认为是不连续的膜。平坦化层和超薄氧化物膜改善了Co合金记录层的生长均匀性，使得具有数据岛的图案化盘显示出显着降低的SFD。

32. 发明申请

US20120141832A1 PERPENDICULAR MAGNETIC RECORDING MEDIA HAVING A DECOUPLED LOW ANISOTROPY OXIDE LAYER FOR WRITEABILITY ENHANCEMENT 审中-公开
标题翻译：具有降低的低均分氧化物层的PERPENDICULAR MAGNETIC RECORDING MEDIA用于增加功能
公开(公告)号：US20120141832A1
公开(公告)日：2012-06-07
申请号：US12960262
申请日：2010-12-03
申请人： Gunn Choe , Yoshihiro Ikeda
发明人： Gunn Choe , Yoshihiro Ikeda
IPC分类号： G11B5/65 , G11B5/667
CPC分类号： G11B5/7325 , G11B5/65 , G11B5/66
摘要： A magnetic media having a multi-layer magnetic oxide structure with an uppermost magnetic oxide layer having a very low magnetic anisotropy energy. The magnetic oxide structure includes at least three magnetic oxide layers. An upper most magnetic oxide layer structure has a magnetic anisotropy energy of less than 1×106 erg/cm3 and a saturation magnetization of greater than 300 emu/cm3. The magnetic oxide structure improves media magnetization in response to a magnetic field. The low anisotropy layer responds easily to a magnetic field. This magnetic response is then transferred to the underlying layers which have a higher magnetic anisotropy for improved robustness in maintaining magnetization over time and even in a high temperature environment.
摘要翻译：具有多层磁性氧化物结构的磁性介质，具有极低的磁各向异性能的最上层的磁性氧化物层。磁性氧化物结构包括至少三个磁性氧化物层。最高磁性氧化物层结构的磁各向异性能量小于1×106erg / cm3，饱和磁化强度大于300emu / cm3。磁性氧化物结构响应于磁场改善介质磁化。低各向异性层容易响应于磁场。然后将该磁响应转移到具有较高磁各向异性的下层，以改善随时间保持磁化强度的鲁棒性，甚至在高温环境中。

33. 发明申请

US20110085264A1 PATTERNED PERPENDICULAR MAGNETIC RECORDING MEDIUM WITH DATA ISLANDS HAVING A FLUX CHANNELING LAYER BELOW THE RECORDING LAYER 有权
标题翻译：带有记录层下面的通道通道层的数据岛的图形磁性记录介质
公开(公告)号：US20110085264A1
公开(公告)日：2011-04-14
申请号：US12577344
申请日：2009-10-12
申请人： Thomas Hauet , Olav Hellwig , Kentaro Takano
发明人： Thomas Hauet , Olav Hellwig , Kentaro Takano
IPC分类号： G11B5/127 , G11B5/667
CPC分类号： G11B5/855 , B82Y10/00 , G11B5/012 , G11B5/66 , G11B5/7325 , G11B5/746 , G11B5/82
摘要： A patterned perpendicular magnetic recording medium, such as a disk for use in hard disk drives, has a flux channeling layer (FCL) located below the recording layer (RL) in each of the discrete data islands. The disk includes a substrate, a soft underlayer (SUL) of soft magnetically permeable material on the substrate, and a nonmagnetic exchange break layer (EBL) on the SUL. A nonmagnetic separation layer (SL) is located between the FCL and the RL in the islands. The FCL has an anisotropy field substantially lower than the anisotropy field of the RL, and a magnetization equal to or higher than the magnetization of the RL. The FCL is saturated at a much lower field than the RL and thus channels the magnetic flux from the write head through the island positions. The dipolar fields from the RL above the FCL polarize the magnetization of the FCL parallel to the magnetization direction of the RL in the absence of an external field, to thereby enhance the readback signal.
摘要翻译：图形化的垂直磁记录介质，例如用于硬盘驱动器的盘，在每个离散数据岛中具有位于记录层（RL）下方的通量沟道层（FCL）。盘包括衬底，衬底上的柔软的可渗透材料的软底层（SUL）和SUL上的非磁性交换断裂层（EBL）。非磁性分离层（SL）位于FCL和岛之间的RL之间。 FCL具有大大低于RL的各向异性场的各向异性场，以及等于或高于RL的磁化强度的磁化强度。 FCL在比RL低得多的场处饱和，从而将来自写入头的磁通量通过岛位置。来自FCL以上的RL的偶极场在没有外部场的情况下使FCL的磁化平行于RL的磁化方向偏振，从而增强回读信号。

34. 发明申请

US20100232054A1 MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE 审中-公开
标题翻译：磁记录介质和磁存储
公开(公告)号：US20100232054A1
公开(公告)日：2010-09-16
申请号：US12709193
申请日：2010-02-19
申请人： Katsumi MABUCHI , Kyoko HONBO , Nobuhiro KUBO
发明人： Katsumi MABUCHI , Kyoko HONBO , Nobuhiro KUBO
IPC分类号： G11B21/02 , G11B5/00 , G11B5/72 , G11B5/667
CPC分类号： G11B5/66 , B82Y10/00 , G11B5/743 , G11B5/746 , G11B5/82 , G11B5/855
摘要： An object of the invention is to provide a magnetic recording medium which exhibits an excellent corrosion resistance. To this end, proposed is a magnetic recording medium including a magnetic recording layer in which: a magnetic body and a filling body alternately appear along a recording surface; and a layer made of a passivated metal or an alloy containing at least one passivated metal is formed in an interface portion between an area of the magnetic body and an area of the filling body.
摘要翻译：本发明的目的是提供一种表现出优异耐腐蚀性的磁记录介质。为此，提出了一种包括磁记录层的磁记录介质，其中：磁体和填充体沿着记录表面交替出现; 并且在磁体的区域和填充体的区域之间的界面部分中形成由钝化金属制成的层或含有至少一种钝化金属的合金。

35. 发明申请

US20090274933A1 PERPENDICULAR MAGNETIC RECORDING MEDIUM 审中-公开
标题翻译：全能磁记录介质
公开(公告)号：US20090274933A1
公开(公告)日：2009-11-05
申请号：US12277416
申请日：2008-11-25
申请人： Seong-yong YOON , Hoo-san LEE , Sok-hyun KONG
发明人： Seong-yong YOON , Hoo-san LEE , Sok-hyun KONG
IPC分类号： G11B5/667 , G11B5/738 , G11B5/72
CPC分类号： G11B5/667 , G11B5/7379
摘要： Provided is a perpendicular magnetic recording medium. The perpendicular magnetic recording medium includes: a substrate; a soft magnetic layer disposed on the substrate; a recording layer disposed on the soft magnetic layer; and at least one hardness enhancing layer disposed in the soft magnetic layer or interposed between the soft magnetic layer and the recording layer.
摘要翻译：提供了一种垂直磁记录介质。垂直磁记录介质包括：基板; 设置在所述基板上的软磁性层; 设置在所述软磁性层上的记录层; 以及至少一个硬度增强层，其设置在所述软磁性层中或介于所述软磁性层和所述记录层之间。

36. 发明授权

US07572526B2 Perpendicular magnetic recording medium with exchange-spring structure having multiple exchange-spring layers and recording system for the medium 失效
标题翻译：具有交换弹簧结构的垂直磁记录介质具有多个交换弹簧层和用于介质的记录系统
公开(公告)号：US07572526B2
公开(公告)日：2009-08-11
申请号：US11676299
申请日：2007-02-18
申请人： Andreas Klaus Berger , Eric E. Fullerton , Byron Hassberg Lengsfield, III
发明人： Andreas Klaus Berger , Eric E. Fullerton , Byron Hassberg Lengsfield, III
IPC分类号： G11B5/66 , G11B5/667 , G11B5/716 , G11B5/673
CPC分类号： G11B5/66
摘要： A perpendicular magnetic recording system uses an exchange-spring type of perpendicular magnetic recording medium. The medium has a recording layer (RL) that includes a lower media layer (ML) and a multilayer exchange-spring layer (ESL) above the ML. The high anisotropy field (high-Hk) lower ML and the multilayer ESL are exchange-coupled across a coupling layer. The multilayer ESL has at least two ESLs separated by a coupling layer, with each of the ESLs having an Hk substantially less than the Hk of the ML. The exchange-spring structure with the multilayer ESL takes advantage of the fact that the write field magnitude and write field gradient vary as a function of distance from the write pole. The thicknesses and Hk values of each of the ESLs can be independently varied to optimize the overall recording performance of the medium.
摘要翻译：垂直磁记录系统使用交换弹簧式垂直磁记录介质。介质具有记录层（RL），其包括ML上方的下介质层（ML）和多层交换弹簧层（ESL）。高各向异性场（high-Hk）较低的ML和多层ESL在耦合层之间交换耦合。多层ESL具有由耦合层隔开的至少两个ESL，每个ESL具有基本上小于ML的Hk的Hk。具有多层ESL的交换弹簧结构利用写入场幅度和写场梯度随着与写入极的距离的函数而变化的优点。可以独立地改变每个ESL的厚度和H k值以优化介质的整体记录性能。

37. 发明授权

US07525762B2 Magnetic recording medium for perpendicular recording 失效
标题翻译：用于垂直记录的磁记录介质
公开(公告)号：US07525762B2
公开(公告)日：2009-04-28
申请号：US10718202
申请日：2003-11-20
申请人： Ryosaku Inamura , Kazumasa Shimoda , Toshio Sugimoto , Takuya Uzumaki
发明人： Ryosaku Inamura , Kazumasa Shimoda , Toshio Sugimoto , Takuya Uzumaki
IPC分类号： G11B5/667
CPC分类号： G11B5/7325 , G11B5/00 , G11B5/012 , G11B5/02 , G11B5/64 , G11B5/66 , G11B5/82 , G11B2005/0002 , G11B2005/0021 , G11B2005/0029
摘要： A perpendicular magnetic recording medium at least comprises a perpendicular magnetic recording layer and a backing layer backing the perpendicular magnetic recording layer. The backing layer has an in-plane magnetization and is formed of a ferrimagnetic material having a compensation temperature in the vicinity of a recording/reproducing temperature in which reproducing of magnetic information is made from the perpendicular magnetic recording layer. A magnetic storage apparatus for recording and reproducing magnetic information using the perpendicular magnetic recording medium is also disclosed.
摘要翻译：垂直磁记录介质至少包括垂直磁记录层和背衬垂直磁记录层的背衬层。背衬层具有平面内磁化，并且由具有补偿温度的磁铁材料形成，所述补偿温度在记录/再现温度附近，其中磁信息从垂直磁记录层进行再现。还公开了一种使用垂直磁记录介质记录和再现磁信息的磁存储装置。

38. 发明申请

US20090042063A1 MAGNETIC RECORDING MEDIUM 审中-公开
标题翻译：磁记录介质
公开(公告)号：US20090042063A1
公开(公告)日：2009-02-12
申请号：US12167072
申请日：2008-07-02
申请人： Tetsutaro INOUE , Kazutaka Matsuo , Takayuki Owaki
发明人： Tetsutaro INOUE , Kazutaka Matsuo , Takayuki Owaki
IPC分类号： G11B5/667
CPC分类号： G11B5/70 , G11B5/714 , G11B5/73
摘要： A magnetic recording medium comprising a nonmagnetic substrate, and a soft magnetic layer and a ferromagnetic layer formed in this order on the nonmagnetic layer, in which the ferromagnetic layer has a thickness of from 3 to 150 nm, contains spherical, ellipsoidal or plate-form ferromagnetic particles and a binder, and has an axis of easy magnetization substantially in the vertical direction, and the soft magnetic layer contains spherical or ellipsoidal Fe—Co-containing soft magnetic particles having a saturation magnetization of from 170 to 220 Am2/kg, and a binder.
摘要翻译：磁性层包括非磁性基片，以及在非磁性层上依次形成的软磁性层和铁磁层，其中铁磁层的厚度为3〜150nm，其中包含球形，椭圆形或板状铁磁颗粒和粘结剂，并且具有基本上在垂直方向上容易磁化的轴，并且软磁层包含饱和磁化强度为170-220Am 2 / kg的球形或椭球形含Fe-Co的软磁性颗粒，以及粘合剂

39. 发明授权

US07316852B2 Perpendicular magnetic recording media 失效
标题翻译：垂直磁记录介质
公开(公告)号：US07316852B2
公开(公告)日：2008-01-08
申请号：US10936562
申请日：2004-09-09
申请人： Kiwamu Tanahashi , Atsushi Kikugawa , Noboru Shimizu , Yukio Honda , Yuzuru Hosoe
发明人： Kiwamu Tanahashi , Atsushi Kikugawa , Noboru Shimizu , Yukio Honda , Yuzuru Hosoe
IPC分类号： G11B5/667
CPC分类号： G11B5/66 , Y10T428/12465 , Y10T428/12861 , Y10T428/12875 , Y10T428/12986 , Y10T428/265
摘要： There is provided a perpendicular magnetic recording medium comprising a non-magnetic layer having a face-centered cubic structure, an antiferromagnetic layer provided on the non-magnetic layer, a soft magnetic underlayer provided on the antiferromagnetic layer, and a perpendicular recording layer provided on the soft magnetic underlayer, which magnetic recording medium makes it possible to realize a recording density not less than 50 Gb/in2 and makes the error rate thereof low while suppressing the spike noise.
摘要翻译：提供了一种垂直磁记录介质，其包括具有面心立方结构的非磁性层，设置在非磁性层上的反铁磁层，设置在反铁磁层上的软磁性底层和设置在反铁磁层上的垂直记录层该软磁性底层，该磁记录介质使得可以实现不低于50Gb / in 2的记录密度，并且在抑制尖峰噪声的同时使其误码率较低。

40. 发明授权

US07067207B2 Magnetic recording medium having a patterned soft magnetic layer 失效
标题翻译：具有图案化软磁层的磁记录介质
公开(公告)号：US07067207B2
公开(公告)日：2006-06-27
申请号：US10702439
申请日：2003-11-07
申请人： Yoshiyuki Kamata , Masatoshi Sakurai , Akira Kikitsu
发明人： Yoshiyuki Kamata , Masatoshi Sakurai , Akira Kikitsu
IPC分类号： G11B5/667 , G11B5/73
CPC分类号： B82Y10/00 , G11B5/667 , G11B5/743 , G11B5/855
摘要： A magnetic recording medium includes a non-magnetic substrate; a soft magnetic layer which is formed on the non-magnetic substrate and which includes projected parts arranged on the surface thereof and recessed parts surrounding each of the projected part; and a ferromagnetic layer which is formed on the soft magnetic layer and which includes projected parts and recessed parts reflecting the projected parts and the recessed parts of the soft magnetic layer. Further the magnetic recording medium includes recording areas which have perpendicular magnetic anisotropy and ferromagnetism, and which are formed of the projected parts of the ferromagnetic layer and separated magnetically from their surroundings. A method for manufacture of the magnetic recording medium includes forming a soft magnetic layer including of projected parts arranged regularly on the surface thereof and recessed parts surrounding each projected part; and forming a ferromagnetic layer having perpendicular magnetic anisotropy on the soft magnetic layer.
摘要翻译：磁记录介质包括非磁性基片; 形成在非磁性基板上的软磁性层，其包括布置在其表面上的突出部分和围绕每个突出部分的凹陷部分; 以及形成在软磁性层上并且包括反映软磁性层的突出部分和凹陷部分的突出部分和凹陷部分的铁磁层。此外，磁记录介质包括具有垂直磁各向异性和铁磁性的记录区域，并且由铁磁层的突出部分形成并与其周围磁性分离。制造磁记录介质的方法包括形成软磁性层，其包括在其表面上规则排列的突出部分和围绕每个突出部分的凹陷部分; 并在软磁层上形成具有垂直磁各向异性的铁磁层。

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