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公开(公告)号：US20050138796A1
公开(公告)日：2005-06-30
申请号：US11062652
申请日：2005-02-23
CPC分类号： G11B5/732 , G11B5/65 , G11B5/667 , G11B5/7325 , G11B5/8404 , Y10T29/49021 , Y10T29/49025 , Y10T29/49032 , Y10T29/49041 , Y10T29/49044 , Y10T29/49078 , Y10T29/49224 , Y10T428/12465 , Y10T428/12757 , Y10T428/24355 , Y10T428/31
摘要： Disclosed is a magnetic recording medium and a method for manufacturing the same to provide a magnetic recording medium reducing medium noise and having excellent thermal stability. The magnetic recording medium includes a substantially amorphous seed layer and a polycrystal underlayer made of crystal grains having a substantially columnar structure, the polycrystal underlayer contacting thereto. In a boundary between the seed layer and the underlayer, fine grooves having a period up to as large as the magnetic layer crystal grain diameter are formed in the disc circumferential direction. Accordingly, the magnetic recording medium is allowed to have a grain shape with a value obtained by dividing the average grain diameter for the disc circumferential direction by the average grain diameter for the disc radial direction of no less than 0.5 and no more than 0.9, thus achieving simultaneously reduction of the medium noise and thermal stability.
摘要翻译： 公开了一种磁记录介质及其制造方法，以提供磁记录介质降低介质噪声并具有优异的热稳定性。 磁记录介质包括基本上无定形的种子层和由具有基本上柱状结构的晶粒制成的多晶底层，多晶底层与其接触。 在种子层和底层之间的边界处，在盘周向形成有具有与磁性层晶粒直径一样大的周期的细槽。 因此，使磁记录介质具有通过将盘圆周方向的平均粒径除以盘径向的平均粒径为不小于0.5且不大于0.9而获得的值的晶粒形状，因此 实现中等噪声和热稳定性的同时降低。
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2.发明授权Magnetic recording medium with controlled grain diameters and method for manufacturing the same 失效具有受控晶粒直径的磁记录介质及其制造方法公开(公告)号：US06884521B2
公开(公告)日：2005-04-26
申请号：US10358342
申请日：2003-02-05
CPC分类号： G11B5/732 , G11B5/65 , G11B5/667 , G11B5/7325 , G11B5/8404 , Y10T29/49021 , Y10T29/49025 , Y10T29/49032 , Y10T29/49041 , Y10T29/49044 , Y10T29/49078 , Y10T29/49224 , Y10T428/12465 , Y10T428/12757 , Y10T428/24355 , Y10T428/31
摘要： Disclosed is a magnetic recording medium and a method for manufacturing the same to provide a magnetic recording medium reducing medium noise and having excellent thermal stability. The magnetic recording medium includes a substantially amorphous seed layer and a polycrystal underlayer made of crystal grains having a substantially columnar structure, the polycrystal underlayer contacting thereto. In a boundary between the seed layer and the underlayer, fine grooves having a period up to as large as the magnetic layer crystal grain diameter are formed in the disc circumferential direction. Accordingly, the magnetic recording medium is allowed to have a grain shape with a value obtained by dividing the average grain diameter for the disc circumferential direction by the average grain diameter for the disc radial direction of no less than 0.5 and no more than 0.9, thus achieving simultaneously reduction of the medium noise and thermal stability.
摘要翻译： 公开了一种磁记录介质及其制造方法，以提供磁记录介质降低介质噪声并具有优异的热稳定性。 磁记录介质包括基本上无定形的种子层和由具有基本上柱状结构的晶粒制成的多晶底层，多晶底层与其接触。 在种子层和底层之间的边界处，在盘周向形成有具有与磁性层晶粒直径一样大的周期的细槽。 因此，使磁记录介质具有通过将盘圆周方向的平均粒径除以盘径向的平均粒径为不小于0.5且不大于0.9而获得的值的晶粒形状，因此 实现中等噪声和热稳定性的同时降低。
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公开(公告)号：US07249405B2
公开(公告)日：2007-07-31
申请号：US11062652
申请日：2005-02-23
CPC分类号： G11B5/732 , G11B5/65 , G11B5/667 , G11B5/7325 , G11B5/8404 , Y10T29/49021 , Y10T29/49025 , Y10T29/49032 , Y10T29/49041 , Y10T29/49044 , Y10T29/49078 , Y10T29/49224 , Y10T428/12465 , Y10T428/12757 , Y10T428/24355 , Y10T428/31
摘要： Disclosed is a magnetic recording medium and a method for manufacturing the same to provide a magnetic recording medium reducing medium noise and having excellent thermal stability. The magnetic recording medium includes a substantially amorphous seed layer and a polycrystal underlayer made of crystal grains having a substantially columnar structure, the polycrystal underlayer contacting thereto. In a boundary between the seed layer and the underlayer, fine grooves having a period up to as large as the magnetic layer crystal grain diameter are formed in the disc circumferential direction. Accordingly, the magnetic recording medium is allowed to have a grain shape with a value obtained by dividing the average grain diameter for the disc circumferential direction by the average grain diameter for the disc radial direction of no less than 0.5 and no more than 0.9, thus achieving simultaneously reduction of the medium noise and thermal stability.
摘要翻译： 公开了一种磁记录介质及其制造方法，以提供磁记录介质降低介质噪声并具有优异的热稳定性。 磁记录介质包括基本上无定形的种子层和由具有基本上柱状结构的晶粒制成的多晶底层，多晶底层与其接触。 在种子层和底层之间的边界处，在盘周向形成有具有与磁性层晶粒直径一样大的周期的细槽。 因此，使磁记录介质具有通过将盘圆周方向的平均粒径除以盘径向的平均粒径为不小于0.5且不大于0.9而获得的值的晶粒形状，因此 实现中等噪声和热稳定性的同时降低。
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公开(公告)号：US06830837B2
公开(公告)日：2004-12-14
申请号：US10046987
申请日：2002-01-17
IPC分类号： G11B566
CPC分类号： G11B5/7325 , G11B5/66 , Y10S428/90 , Y10T428/1121 , Y10T428/12465 , Y10T428/12854 , Y10T428/12861
摘要： It is an object of the present invention to provide a high reliability magnetic storage apparatus capable of performing writing and reading back of high density information. The magnetic storage apparatus is so configured as to have a longitudinal magnetic recording medium including: a magnetic layer formed on a non-magnetic substrate via a plurality of underlayers; the magnetic layer including a lower magnetic layer containing Ru in an amount of not less than 3 at % to not more than 30 at %, and Cr in an amount of not less than 0 at % to not more than 18 at %, and further containing at least one of B or C in an amount of not less than 0 at % to not more than 20 at %, and an upper magnetic layer containing Co as a main component disposed thereon via a non-magnetic intermediate layer.
摘要翻译： 本发明的目的是提供一种能够执行高密度信息的写入和读回的高可靠性磁存储装置。 磁存储装置被配置为具有纵向磁记录介质，其包括：通过多个底层在非磁性基板上形成的磁性层; 所述磁性层包括含有不小于3原子％至不超过30原子％的量的Ru的下磁性层，并且不少于0原子％至不大于18原子％的Cr， 含有不小于0at％至不超过20at％的B或C中的至少一个，以及经由非磁性中间层设置在其上的Co作为主要成分的上磁性层。
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5.发明授权公开(公告)号：US07261958B2
公开(公告)日：2007-08-28
申请号：US10067333
申请日：2002-02-07
CPC分类号： G11B5/66 , G11B5/00 , G11B5/012 , G11B2005/0002 , G11B2005/0016
摘要： A magnetic recording medium having at least two magnetic layers and a non-magnetic intermediate layer held between them. The first magnetic layer (which is closer to the substrate than the non-magnetic intermediate layer) is formed from an alloy composed of Co, Pr, and Cr, with Pt content being 3-9 at %. The second magnetic layer (which is farther from the substrate than the non-magnetic intermediate layer) is formed from a Co-based alloy containing Pt, Cr, and B. The first and second magnetic layers are magnetized in the mutually antiparallel direction in the absence of an applied magnetic field.The magnetic recording medium is characterized by good thermal stability for recording bits, high recording resolution, and low media noise. It is suitable for a magnetic storage for high recording density with high reliability.
摘要翻译： 具有至少两个磁性层和保持在它们之间的非磁性中间层的磁记录介质。 第一磁性层（其比非磁性中间层更靠近基板）由Co，Pr和Cr组成的合金形成，Pt含量为3-9原子％。 第二磁性层（其比非磁性中间层离基板更远）由含有Pt，Cr和B的Co基合金形成。第一和第二磁性层在相互反平行的方向上被磁化 不存在施加的磁场。 磁记录介质的特征在于用于记录位的良好热稳定性，高记录分辨率和低介质噪声。 适用于具有高可靠性的高记录密度的磁存储。
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公开(公告)号：US20050084716A1
公开(公告)日：2005-04-21
申请号：US10985045
申请日：2004-11-10
CPC分类号： G11B5/7325 , G11B5/66 , Y10S428/90 , Y10T428/1121 , Y10T428/12465 , Y10T428/12854 , Y10T428/12861
摘要： It is an object of the present invention to provide a high reliability magnetic storage apparatus capable of performing writing and reading back of high density information. The magnetic storage apparatus is so configured as to have a longitudinal magnetic recording medium including: a magnetic layer formed on a non-magnetic substrate via a plurality of underlayers; the magnetic layer including a lower magnetic layer containing Ru in an amount of not less than 3 at % to not more than 30 at %, and Cr in an amount of not less than 0 at % to not more than 18 at %, and further containing at least one of B or C in an amount of not less than 0 at % to not more than 20 at %, and an upper magnetic layer containing Co as a main component disposed thereon via a non-magnetic intermediate layer.
摘要翻译： 本发明的目的是提供一种能够执行高密度信息的写入和读回的高可靠性磁存储装置。 磁存储装置被配置为具有纵向磁记录介质，其包括：通过多个底层在非磁性基板上形成的磁性层; 所述磁性层包括含有不小于3原子％至不超过30原子％的量的Ru的下磁性层，并且不少于0原子％至不大于18原子％的Cr， 含有不小于0at％至不超过20at％的B或C中的至少一个，以及经由非磁性中间层设置在其上的Co作为主要成分的上磁性层。
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公开(公告)号：US20110027326A1
公开(公告)日：2011-02-03
申请号：US12935497
申请日：2009-03-26
申请人： Yoshiyuki Hirayama
发明人： Yoshiyuki Hirayama
IPC分类号： A61K9/00 , A61K31/165 , A61K31/23 , A61P43/00
CPC分类号： A61K47/14 , A61F2013/00187 , A61F2013/00646 , A61F2013/00919 , A61K8/0208 , A61K8/347 , A61K8/375 , A61K8/42 , A61K9/0014 , A61K9/06 , A61K9/7061 , A61K2800/242 , A61L15/20 , A61L15/44 , A61L2300/204 , A61L2300/216 , A61L2300/40 , A61L2300/45 , A61Q19/00
摘要： An external composition for skin is provided, which gives good warmth without inducing irritation or pain and whose sustainability of warmth is good. The external composition for skin contains (A) an agent for giving warmth and (B) at least one member selected from the group consisting of fatty acid esters of aliphatic polyhydric alcohols and aromatic carboxylic acid esters of lower alcohols or aliphatic polyhydric alcohols.
摘要翻译： 提供皮肤外用组合物，不会引起刺激或疼痛，而且温暖的可持续性良好，可保暖。 皮肤外用组合物含有（A）赋予温度的试剂，（B）选自脂肪族多元醇的脂肪酸酯和低级醇或脂肪族多元醇的芳香族羧酸酯中的至少一种。
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8.发明授权公开(公告)号：US07641989B2
公开(公告)日：2010-01-05
申请号：US11295005
申请日：2005-12-05
申请人： Ikuko Takekuma , Reiko Arai , Yoko Ogawa , Yoshiyuki Hirayama , Yuzuru Hosoe , Tomio Iwasaki
发明人： Ikuko Takekuma , Reiko Arai , Yoko Ogawa , Yoshiyuki Hirayama , Yuzuru Hosoe , Tomio Iwasaki
IPC分类号： G11B5/66
CPC分类号： C23C14/568 , C23C14/025 , C23C14/0658 , C23C14/0688 , C23C14/584 , G11B5/65 , G11B5/732
摘要： Embodiments of the invention provide a medium which provides high media S/N and good corrosion resistance. According to one embodiment, in a perpendicular magnetic recording medium at least comprising a soft-magnetic underlayer, a seed layer, an intermediate layer, a magnetic recording layer and an overcoat layer which are stacked over a substrate in order, the magnetic recording layer has a granular structure which consists of many columnar grains of CoCrPt alloy and a grain boundary layer containing an oxide, the seed layer is made of TaNi alloy or TaTi alloy and the intermediate layer is made of Ru or Ru alloy which contains about 80 at. % Ru or more.
摘要翻译： 本发明的实施方案提供了提供高介质S / N和良好耐腐蚀性的介质。 根据一个实施例，在依次层叠在基板上的至少包括软磁性底层，种子层，中间层，磁记录层和覆盖层的垂直磁记录介质中，磁记录层具有 由CoCrPt合金的许多柱状晶粒和含有氧化物的晶界层组成的粒状结构，种子层由TaNi合金或TaTi合金制成，中间层由含有约80at的Ru或Ru合金制成。 ％Ru或更多。
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公开(公告)号：US07510789B2
公开(公告)日：2009-03-31
申请号：US11148164
申请日：2005-06-09
IPC分类号： G11B5/66
CPC分类号： B82Y10/00 , G11B5/656 , G11B5/66 , G11B5/7325 , G11B5/743 , Y10T428/24802
摘要： A perpendicular magnetic recording medium includes an intermediate film formed of a plurality of layers between a soft magnetic film and a perpendicular magnetization film. The intermediate film includes at least two layers, i.e., an oxygen-containing layer, or a nonmetallic element-containing layer containing nitrogen, silicon or carbon, and a metallic layer formed on a surface side of the oxygen-containing layer or the nonmetallic element-containing layer. The metallic layer includes a plurality of isolated island-shaped structures. Crystal grains of the perpendicular magnetization film are formed so as to correspond to the isolated island-shaped structures. As a result, a high recording density is obtained.
摘要翻译： 垂直磁记录介质包括由软磁膜和垂直磁化膜之间的多层形成的中间膜。 中间膜包括至少两层，即含氧层或含有氮，硅或碳的非金属元素层，以及在含氧层或非金属元素的表面侧上形成的金属层 包含层。 金属层包括多个孤立的岛状结构。 垂直磁化膜的晶粒形成为对应于孤立的岛状结构。 结果，获得高记录密度。
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10.发明申请PERPENDICULAR MAGNETIC RECORDING MEDIUM WITH GRANULAR STRUCTURED MAGNETIC RECORDING LAYER, METHOD FOR PRODUCING THE SAME, AND MAGNETIC RECORDING APPARATUS 审中-公开具有颗粒结构的磁记录层的周期性磁记录介质，其制造方法和磁记录装置公开(公告)号：US20080186627A1
公开(公告)日：2008-08-07
申请号：US12061518
申请日：2008-04-02
申请人： Yoshiyuki Hirayama , Ikuko Takekuma , Ichiro Tamai
发明人： Yoshiyuki Hirayama , Ikuko Takekuma , Ichiro Tamai
CPC分类号： G11B5/7325 , C23C14/06 , C23C14/3492 , G11B5/65 , G11B5/851 , Y02T50/67
摘要： Embodiments of the invention provide a perpendicular magnetic recording medium having a granular structured magnetic recording layer including many columnar grains, and grain boundary layers containing oxide, wherein a high medium S/N ratio is obtained while securing head flyability and durability. In an embodiment, the perpendicular magnetic recording medium includes a granular structured magnetic recording layer having many columnar grains, as well as grain boundary layers including oxide respectively. Assuming that the columnar grains are divided equally in the film thickness direction into a protective layer side portion and an intermediate layer side portion, and the diameter of the protective layer side portion is larger than that of the intermediate layer side portion.
摘要翻译： 本发明的实施例提供一种垂直磁记录介质，其具有包括许多柱状颗粒的粒状结构磁记录层和含有氧化物的晶界层，其中在确保磁头可飞行性和耐久性的同时获得高介质S / N比。 在一个实施例中，垂直磁记录介质包括具有许多柱状晶粒的颗粒结构磁记录层以及分别包括氧化物的晶界层。 假设柱状晶粒在膜厚度方向上被均等地分割成保护层侧部分和中间层侧部分，并且保护层侧部分的直径大于中间层侧部分的直径。
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