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81. 发明专利

JP4352398B2 Substrate and a method of manufacturing the same for a magnetic recording medium 有权
公开(公告)号：JP4352398B2
公开(公告)日：2009-10-28
申请号：JP2004116013
申请日：2004-04-09
申请人：富士電機デバイステクノロジー株式会社
发明人：典彦中島 , 辰実川田 , 正則杉内 , 和人樋口
IPC分类号： G11B5/667 , G11B5/84 , G11B5/73 , G11B5/858

82. 发明专利

JP2009223997A Magnetic recording medium, manufacturing method thereof, and magnetic recording and playback device 审中-公开
标题翻译：磁记录介质，其制造方法及磁记录和回放装置
公开(公告)号：JP2009223997A
公开(公告)日：2009-10-01
申请号：JP2008069875
申请日：2008-03-18
申请人： Fujitsu Ltd , 富士通株式会社
发明人： YAMAGISHI WATARU
IPC分类号： G11B5/66 , G11B5/65 , G11B5/667 , G11B5/738 , G11B5/84
摘要： PROBLEM TO BE SOLVED: To provide a magnetic recording medium which can be manufactured without using photolithographic technology and improves thermal fluctuation resistance and ease of writing, to provide its manufacturing method and to provide a magnetic recording and playback device.
SOLUTION: The magnetic recording medium includes: a substrate 12; a first region 28 where a first magnetic layer 22, a non-magnetic spacer layer 24 and a second magnetic layer 26 are sequentially provided on the substrate 12, and the first magnetic layer 22 is hard magnetic, the second magnetic layer 26 is soft magnetic and the first and the second magnetic layers 22 and 26 are ferromagnetic exchange coupled; and a second region 30 wherein the first and the second magnetic layers 22 and 26 are both hard magnetic and the first and the second magnetic layers 22 and 26 are anti-ferromagnetic exchange coupled across the non-magnetic spacer layer 24. Thermal fluctuation resistance and ease of writing can be enhanced by using the first region 28 as a recording region.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供可以在不使用光刻技术的情况下制造的磁记录介质，并且提高热波动阻力和易于写入，以提供其制造方法并提供磁记录和重放装置。磁记录介质包括：基板12; 第一区域28，其中第一磁性层22，非磁性间隔层24和第二磁性层26依次设置在基板12上，并且第一磁性层22是硬磁性的，第二磁性层26是软磁性的并且第一和第二磁性层22和26是铁磁交换耦合的; 以及第二区域30，其中第一和第二磁性层22和26都是硬磁性的，并且第一和第二磁性层22和26是穿过非磁性间隔层24耦合的反铁磁交换。热波动阻力和通过使用第一区域28作为记录区域，可以提高书写的容易性。版权所有（C）2010，JPO＆INPIT

83. 发明专利

JP4331182B2 Soft magnetic target material 有权
公开(公告)号：JP4331182B2
公开(公告)日：2009-09-16
申请号：JP2006112504
申请日：2006-04-14
申请人：山陽特殊製鋼株式会社
发明人：彰彦柳谷 , 芳和相川
IPC分类号： C23C14/34 , C22C1/04 , C22C19/03 , C22C19/07 , C22C38/00 , G11B5/667 , G11B5/84 , H01F1/14
CPC分类号： C23C14/3414 , G11B5/667 , G11B5/8404
摘要： There is disclosed a soft magnetic target material with an improved atmospheric resistance without deterioration of magnetic properties. A soft magnetic target material according to the first aspect comprises a Fe-Co based alloy having a Fe:Co atomic ratio of 100:0 to 20:80, wherein the alloy further comprises one or both of Al and Cr of 0.2 to 5 atom %. In addition, a soft magnetic target material according to the second aspect comprises a Fe-Ni based alloy having a Fe:Ni atomic ratio of 100:0 to 20:80, wherein the alloy further comprises one or both of Al and Cr of 0.2 to 5 atom %. In the soft magnetic target materials according to the first and second aspects, the alloys further comprise one or more selected from a group consisting of B, Nb, Zr, Ta, Hf, Ti and V of not more than 30 atom %.

84. 发明专利

JPWO2007114400A1 垂直磁気記録媒体の製造方法审中-公开
公开(公告)号：JPWO2007114400A1
公开(公告)日：2009-08-20
申请号：JP2008508689
申请日：2007-03-31
申请人： Hoya株式会社 , Hoya株式会社 , ホーヤマグネティクスシンガポールプライベートリミテッド , ホーヤマグネティクスシンガポールプライベートリミテッド
发明人：禎一郎梅澤 , 禎一郎梅澤 , 貴弘尾上 , 貴弘尾上 , 力鷹巣 , 力鷹巣 , キム　コング , コングキム
IPC分类号： G11B5/84 , G11B5/65 , G11B5/667 , G11B5/73 , H01F10/16 , H01F10/32
CPC分类号： G11B5/667 , G11B5/84
摘要：【課題】基体上に軟磁性層、グラニュラー構造を有する磁気記録層及び高い垂直磁気異方性を有する連続層を備える垂直磁気記録媒体について、磁気記録層の逆磁区核形成磁界を容易に高めることができる製造方法を提供することを目的としている。【解決手段】本発明に係る垂直磁気記録媒体の製造方法は、基体上に軟磁性層を形成する軟磁性層形成工程と、軟磁性層の上層としてグラニュラー構造を有する磁気記録層を形成する磁気記録層形成工程と、磁気記録層の上層又は下層として垂直磁気異方性を有する連続層を形成する連続層形成工程と、連続層形成工程において連続層を形成することにより得られた媒体を、逆磁区核形成磁界の値を向上させるために加熱する加熱工程とを備えることを特徴とする。

85. 发明专利

JP2009187652A Perpendicular magnetic recording medium 有权
标题翻译：全能磁记录介质
公开(公告)号：JP2009187652A
公开(公告)日：2009-08-20
申请号：JP2009020017
申请日：2009-01-30
申请人： Samsung Electronics Co Ltd , 三星電子株式会社Samsung Electronics Co.,Ltd.
发明人： KONG SOK-HYUN , YOON SEONG-YONG , LEE HOO-SAN
IPC分类号： G11B5/667 , G11B5/65 , G11B5/66 , H01F10/16
CPC分类号： G11B5/65 , G11B5/66 , G11B5/667
摘要： PROBLEM TO BE SOLVED: To provide a perpendicular magnetic recording medium in which structure of a soft magnetic layer is improved.
SOLUTION: The perpendicular magnetic recording medium includes: a substrate; a plurality of soft magnetic layers including a lower soft magnetic layer and an upper soft magnetic layer which are sequentially stacked on the substrate, the upper soft magnetic layer having an anisotropic magnetic field larger than that of the lower soft magnetic layer; an isolating layer interposed between the lower and upper soft magnetic layers and preventing magnetic interaction between the lower and upper soft magnetic layers; an underlayer formed on the upper soft magnetic layer; and a recording layer formed on the under layer, and including a plurality of ferromagnetic layers each of which has a magnetic anisotropic energy which decreases toward the upper ferromagnetic layer from the lower ferromagnetic layer positioned at the under layer.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种提高软磁性层结构的垂直磁记录介质。解决方案：垂直磁记录介质包括：基板; 多个软磁层，包括顺序堆叠在基板上的下软磁层和上软磁层，所述上软磁层具有比下软磁层大的各向异性磁场; 插入在所述下软磁层和所述软磁性层之间的隔离层，并防止所述下软磁层和所述软磁性层之间的磁相互作用; 形成在上软磁层上的底层; 以及形成在下层上的记录层，并且包括多个铁磁层，每个铁磁层具有从位于下层的下铁磁层朝向上铁磁层减小的磁各向异性能。版权所有（C）2009，JPO＆INPIT

86. 发明专利

JP2009187608A Perpendicular magnetic recording patterned medium and magnetic recording and reproducing device 审中-公开
标题翻译：全磁记录图形和磁记录和再现装置
公开(公告)号：JP2009187608A
公开(公告)日：2009-08-20
申请号：JP2008024903
申请日：2008-02-05
申请人： Toshiba Corp , 株式会社東芝
发明人： ISOWAKI YOSUKE , MAEDA TOMOYUKI , KAMATA YOSHIYUKI
IPC分类号： G11B5/65 , G11B5/667 , G11B5/738 , H01F10/13 , H01F10/16
CPC分类号： G11B5/66 , B82Y10/00 , G11B5/743 , G11B5/82 , G11B5/855
摘要： PROBLEM TO BE SOLVED: To provide a perpendicular magnetic recording patterned medium excellent in heat stability while reducing a write-in magnetic field in a bit area, with less occurrence of a reversed magnetic domain in a position control information area of a head.
SOLUTION: The perpendicular magnetic recording patterned medium includes: a nonmagnetic substrate 2; a soft magnetic base layer 3 formed on the nonmagnetic substrate; a nonmagnetic intermediate layer 4 formed on the soft magnetic base layer; and a perpendicular magnetic recording layer 7 which is formed on the nonmagnetic intermediate layer and has a layered structure of a CoPt based crystalline film 5 whose Pt content is 5 to 35 at.% and a rare earth-transition metal alloy amorphous film 6 formed on this CoPt based crystalline film, wherein the CoPt based crystalline film and rare earth-transition metal alloy amorphous film are exchange coupled and the perpendicular magnetic recording layer makes an arrangement of a patterned fine shape.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供热稳定性优异的垂直磁记录图案化介质，同时减少位区域中的写入磁场，在头部的位置控制信息区域中较少出现反向磁畴。解决方案：垂直磁记录图案化介质包括：非磁性基板2; 形成在非磁性基板上的软磁性基层3; 形成在软磁性基底层上的非磁性中间层4; 以及形成在非磁性中间层上并且具有Pt含量为5〜35原子％的CoPt系结晶膜5和形成于其上的稀土 - 过渡金属合金非晶膜6的层叠结构的垂直磁记录层7 这种CoPt基结晶膜，其中基于CoPt的结晶膜和稀土 - 过渡金属合金非晶膜交换耦合，并且垂直磁记录层构成图案化的细形状。版权所有（C）2009，JPO＆INPIT

87. 发明专利

JP2009146558A Magnetic thin-film structure, magnetic recording medium, and manufacturing method thereof 审中-公开
标题翻译：磁性薄膜结构，磁记录介质及其制造方法
公开(公告)号：JP2009146558A
公开(公告)日：2009-07-02
申请号：JP2008272198
申请日：2008-10-22
申请人： Samsung Electronics Co Ltd , 三星電子株式会社Samsung Electronics Co.,Ltd.
发明人： LEE MYUNG-BOK , SOHN JIN-SEUNG , YOON SEONG-YONG
IPC分类号： G11B5/65 , G11B5/667 , G11B5/738 , G11B5/851 , G11B5/855 , H01F10/16 , H01F10/30
CPC分类号： G11B5/855 , G11B5/667 , G11B5/7325
摘要： PROBLEM TO BE SOLVED: To provide a magnetic thin-film structure, a magnetic recording medium and a manufacturing method thereof.
SOLUTION: The magnetic recording medium is provided with an underlayer which is formed on a substrate with a transition metal nitride and a plurality of magnetic dots on the underlayer which comprise magnetic materials whose magnetic anisotropy energy is 10
6 -10
8 erg/cc and which are unit recording areas. A manufacturing method of the magnetic recording medium is also provided. The magnetic materials which constitute the dots have L1
0 structure. The crystal face of the underlayer, which faces the magnetic recording layer, is a (001) surface. The underlayer has a lattice mismatch of 5-15% with a magnetic recording layer.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供磁性薄膜结构，磁记录介质及其制造方法。解决方案：磁记录介质设置有底层，其在基底上形成有过渡金属氮化物和底层上的多个磁点，其包含磁各向异性能为10 -6 / SP> -10 8 erg / cc，它们是单位记录区。还提供了一种磁记录介质的制造方法。构成点的磁性材料具有L1 0 结构。面向磁记录层的底层的晶面为（001）面。底层与磁记录层具有5-15％的晶格失配。版权所有（C）2009，JPO＆INPIT

88. 发明专利

JP2009146522A Perpendicular magnetic recording medium and manufacturing method thereof 审中-公开
标题翻译：全能磁记录介质及其制造方法
公开(公告)号：JP2009146522A
公开(公告)日：2009-07-02
申请号：JP2007323939
申请日：2007-12-14
申请人： Fujitsu Ltd , 富士通株式会社
发明人： MUKAI RYOICHI
IPC分类号： G11B5/667 , G11B5/851
CPC分类号： G11B5/667 , C23C14/025 , C23C14/0688 , G11B5/65 , G11B5/66 , G11B5/72 , G11B5/7325 , G11B5/851 , Y10T428/11
摘要： PROBLEM TO BE SOLVED: To provide a perpendicular magnetic recording medium which reduces crystal orientation dispersion of a recording layer, and a manufacturing method thereof. SOLUTION: The perpendicular magnetic recording medium 10 has a first magnetic layer 20 composed of a plurality of micro crystal particles 20a and a second magnetic layer 16, and the second magnetic layer 16 composed of a plurality of crystal particles 16a which have a magnetization easy axis aligned with the perpendicular direction of a substrate surface and non magnetic material 16b interposed between the crystal particles. On Ru crystal grains of a base layer 14, the micro crystal particles 20a of the first magnetic layer are formed while the crystal particles 16a of the second magnetic layer are formed on the micro crystal particles 20a. The particle sizes of the micro crystal particle 20a in the first magnetic layer 20 is smaller than that of the crystal particle 16a of the second magnetic layer 16. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决方案的问题：提供减小记录层的晶体取向色散的垂直磁记录介质及其制造方法。解决方案：垂直磁记录介质10具有由多个微晶粒子20a和第二磁性层16构成的第一磁性层20和由多个晶粒16a构成的第二磁性层16，易磁化轴与衬底表面的垂直方向和介于晶体颗粒之间的非磁性材料16b对齐。在基层14的Ru晶粒上形成第一磁性层的微结晶粒子20a，同时在微晶粒子20a上形成第二磁性层的结晶粒子16a。第一磁性层20中的微晶粒子20a的粒径小于第二磁性层16的结晶粒子16a的粒径。（C）2009，JPO＆INPIT

89. 发明专利

JP2009116952A Perpendicular magnetic recording medium, and magnetic memory using the same 审中-公开
标题翻译：全磁磁记录介质和使用其的磁记忆
公开(公告)号：JP2009116952A
公开(公告)日：2009-05-28
申请号：JP2007288971
申请日：2007-11-06
申请人： Hitachi Global Storage Technologies Netherlands Bv , ヒタチグローバルストレージテクノロジーズネザーランドビーブイ
发明人： TAKEKUMA IKUKO , NEMOTO HIROAKI , NAKAGAWA HIROYUKI
IPC分类号： G11B5/738 , G11B5/31 , G11B5/64 , G11B5/65 , G11B5/667 , H01F10/16 , H01F10/30
CPC分类号： G11B5/732 , G11B5/65 , G11B5/66
摘要： PROBLEM TO BE SOLVED: To solve the problem that while the crystal grain size of a magnetic recoding layer can be scaled down by forming an intermediate layer or a seed layer below the magnetic recording layer, the effect of decreasing the magnetization reversal unit is small since sufficient grain boundary width cannot be formed.
SOLUTION: The perpendicular magnetic recording medium 10 is made by stacking a seed layer, an intermediate layer, a magnetic recording layer, and a protective layer on a substrate 11. The magnetic recording layer has a granular structure composed of a grain boundary layer containing many columnar grains made of a CoCrPt alloy and oxides. The seed layer is formed by stacking a first seed layer 14a, a second seed layer 14b, and a third seed layer 14c. The first seed layer 14a includes Ti or a Ti alloy having a hexagonal close-packed structure. The second seed layer 14b includes Cu, Ag, Al or an alloy containing at least one of them having a face-centered cubic structure. The third seed layer 14c includes a nickel alloy having a face-centered cubic structure.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题为了解决通过在磁记录层下面形成中间层或种子层可以缩小磁记录层的晶粒尺寸的问题，降低磁化反转单元的效果是小的，因为不能形成足够的晶界宽度。解决方案：垂直磁记录介质10通过在基板11上堆叠晶种层，中间层，磁记录层和保护层而制成。磁记录层具有由晶界组成的颗粒结构包含许多由CoCrPt合金和氧化物制成的柱状晶粒的层。种子层通过堆叠第一种子层14a，第二种子层14b和第三种子层14c而形成。第一种子层14a包括具有六方密堆积结构的Ti或Ti合金。第二种子层14b包括Cu，Ag，Al或含有至少一个具有面心立方结构的合金。第三种子层14c包括具有面心立方结构的镍合金。版权所有（C）2009，JPO＆INPIT

90. 发明专利

JP2009110607A Magnetic recording medium, its manufacturing method and magnetic recording system 有权
标题翻译：磁记录介质，其制造方法和磁记录系统
公开(公告)号：JP2009110607A
公开(公告)日：2009-05-21
申请号：JP2007282525
申请日：2007-10-30
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SHIBATA HISATO , TAKAHOSHI HIDEAKI , SATO SHINYA , KAITSU ISATAKE , KIKUCHI AKIRA
IPC分类号： G11B5/667 , G11B5/65 , G11B5/82
CPC分类号： G11B5/66 , G11B5/65
摘要： PROBLEM TO BE SOLVED: To provide: a magnetic recording medium which achieves both overwrite characteristic and thermal stability, and are suitable for mass production; its manufacturing method; and magnetic recording device. SOLUTION: A vertical magnetic recording layer 32 includes a granular layer 7, non magnetic layer 8, granular layer 9, and magnetic layer 10. The non magnetic layer 8 magnetically isolates the granular layer 7 and granular layer 9, and the magneto anisotropic magnetic field of the granular layer 7 is higher than that of the granular layer 9. The non magnetic layer 8 is formed by a non magnetic metal layer made of Ru alloy including a ferromagnetic element for example. Alloy of Ru with Co, Ni and/or Fe can be also quoted as material for the non magnetic layer 8. The magnetic layer 10 does not include an oxide, and has a plurality of magnetic particles packed densely. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供：实现覆盖特性和热稳定性的磁记录介质，并且适合于批量生产; 其制造方法; 和磁记录装置。解决方案：垂直磁记录层32包括粒状层7，非磁性层8，粒状层9和磁性层10.非磁性层8磁性隔离粒状层7和粒状层9，粒状层7的各向异性磁场比颗粒层9的各向异性磁场高。非磁性层8由例如包含铁磁性元素的由Ru合金构成的非磁性金属层形成。 Co，Ni和/或Fe的Ru的合金也可以作为非磁性层8的材料引用。磁性层10不包括氧化物，并且具有密集填充的多个磁性颗粒。版权所有（C）2009，JPO＆INPIT

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