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91. 发明授权

US08343362B2 Stamper manufacturing method 有权
标题翻译：压模制造方法
公开(公告)号：US08343362B2
公开(公告)日：2013-01-01
申请号：US12641135
申请日：2009-12-17
申请人： Takuya Shimada , Shinobu Sugimura , Yoshiyuki Kamata , Masatoshi Sakurai
发明人： Takuya Shimada , Shinobu Sugimura , Yoshiyuki Kamata , Masatoshi Sakurai
IPC分类号： H01B13/00 , C25F3/00
CPC分类号： G11B5/855 , C23C14/04 , C23C14/185 , C23C14/34
摘要： According to one embodiment, when forming first, second, and third stampers by transferring three-dimensional patterns of a master, a height adjusting layer having a film thickness greater on the upper surface of a projection than on the bottom surface of a recess is formed between the second stamper and a second release layer, and the surface of the third stamper is etched with an acidic solution having a pH of less than 3.
摘要翻译：根据一个实施例，当通过传送主机的三维图案来形成第一，第二和第三压模时，形成在突起的上表面上比在凹部的底表面上具有更大的膜厚度的高度调节层在第二压模和第二剥离层之间，并且用pH小于3的酸性溶液蚀刻第三压模的表面。

92. 发明授权

US08308965B2 Stamper, method of manufacturing the stamper, and magnetic recording medium manufacturing method using the stamper 失效
标题翻译：压模，制造压模的方法以及使用压模的磁记录介质制造方法
公开(公告)号：US08308965B2
公开(公告)日：2012-11-13
申请号：US13093221
申请日：2011-04-25
申请人： Masatoshi Sakurai , Satoshi Shirotori , Seiji Morita , Shinobu Sugimura , Takuya Shimada , Yoshiyuki Kamata
发明人： Masatoshi Sakurai , Satoshi Shirotori , Seiji Morita , Shinobu Sugimura , Takuya Shimada , Yoshiyuki Kamata
IPC分类号： B44C1/22 , C03C15/00 , C03C25/68 , C23F1/00
CPC分类号： G11B5/855 , C25D1/10
摘要： According to one embodiment, a stamper manufacturing method includes forming a conductive material concentration gradient layer including the projections pattern, and a composition ratio of a buffering agent to a conductive material in the conductive material concentration gradient layer reducing in a thickness direction from a master side.
摘要翻译：根据一个实施例，压模制造方法包括形成包括突起图案的导电材料浓度梯度层，并且导电材料浓度梯度层中的缓冲剂与导电材料的组成比在厚度方向上从主侧减小。

93. 发明授权

US08300340B2 Magnetic recording medium 有权
标题翻译：磁记录介质
公开(公告)号：US08300340B2
公开(公告)日：2012-10-30
申请号：US13039158
申请日：2011-03-02
申请人： Masatoshi Sakurai , Ryosuke Yamamoto , Naoko Kihara , Akiko Yuzawa , Yoshiyuki Kamata
发明人： Masatoshi Sakurai , Ryosuke Yamamoto , Naoko Kihara , Akiko Yuzawa , Yoshiyuki Kamata
IPC分类号： G11B5/09 , G11B21/02 , G11B5/82 , G11B5/64
CPC分类号： G11B5/59688 , B82Y10/00 , G11B5/743 , G11B5/855
摘要： According to one embodiment, a servo area of a magnetic recording medium includes magnetic dots arrayed at a period L0. The magnetic dots include a plurality of magnetic dot regions divided in the cross track direction. A width Wm in the down track direction of the mth magnetic dot region from the innermost circumference and a number Nm of dot rows in the down track direction of the mth region meet a relationship represented by L0{Nm√3/2−0.3}≦Wm≦L0{Nm√3/2+0.3} (1).
摘要翻译：根据一个实施例，磁记录介质的伺服区包括以周期L0排列的磁点。磁点包括沿交叉磁道方向分割的多个磁点区域。第m个区域的第m个磁性区域的向下轨道方向的宽度Wm和第m个区域的向下轨道方向的点行数为Nm满足L0 {Nm3 / 2-0.3}＆nlE ; Wm＆nlE; L0 {Nm√3/ 2 + 0.3}（1）。

94. 发明授权

US08097351B2 Magnetic recording apparatus 有权
标题翻译：磁记录装置
公开(公告)号：US08097351B2
公开(公告)日：2012-01-17
申请号：US11341849
申请日：2006-01-30
申请人： Takeshi Okino , Seiji Morita , Yoshiyuki Kamata , Satoshi Shirotori , Masatoshi Sakurai , Hiroaki Nakamura
发明人： Takeshi Okino , Seiji Morita , Yoshiyuki Kamata , Satoshi Shirotori , Masatoshi Sakurai , Hiroaki Nakamura
IPC分类号： G11B5/66
CPC分类号： G11B5/855
摘要： A magnetic recording apparatus has a magnetic recording media including a substrate and a magnetic layer containing magnetic patterns on the substrate, the magnetic layer including data zones to constitute recoding tracks and servo zones, the magnetic patterns of the servo zones being used as address bits, and a magnetic head configured to read signals from the magnetic recording media while flying over the magnetic recording media, in which, in a case where two magnetic patterns used as address bits on the servo zones corresponding to two adjacent recording tracks are arranged in such a manner that one corner of one magnetic pattern is closest to one corner of the other magnetic pattern, the corners of the two magnetic patterns are substantially separated from each other.
摘要翻译：磁记录装置具有包括基板和在基板上包含磁图案的磁性层的磁记录介质，磁层包括构成记录轨道和伺服区的数据区，伺服区的磁图用作地址位，以及磁头，被配置为在磁记录介质上飞行时从磁记录介质读取信号，其中在用于作为与两个相邻记录轨道对应的伺服区上的地址位的两个磁图案布置在这样的一个磁性图案的一个角最靠近另一个磁性图案的一个角的方式，两个磁性图案的角部基本上彼此分离。

95. 发明授权

US07938978B2 Method of manufacturing stamper 有权
标题翻译：制造压模的方法
公开(公告)号：US07938978B2
公开(公告)日：2011-05-10
申请号：US12691491
申请日：2010-01-21
申请人： Takuya Shimada , Shinobu Sugimura , Yoshiyuki Kamata , Masatoshi Sakurai
发明人： Takuya Shimada , Shinobu Sugimura , Yoshiyuki Kamata , Masatoshi Sakurai
IPC分类号： B44C1/22 , B28B11/08
CPC分类号： G11B5/855
摘要： According to one embodiment, a method of manufacturing a stamper includes forming a first stamper from a master plate having lands and grooves through electroforming, forming a second stamper, a width of which is GW, from the first stamper through electroforming, forming a lamination film with a thickness of LLT on the second stamper, forming, on the lamination film, a second releasing layer, a transfer layer with a thickness of TLT and a third electroforming layer with a thickness of ELT, peeling off the transfer layer and the third electroforming layer from the second stamper to form a third stamper, and isotropically etching the transfer layer on the third stamper in an etching thickness of ET to reduce a width of lands of the third stamper, in which the following relations are satisfied: 10 nm≦ELT and ET≦TLT.
摘要翻译：根据一个实施例，制造压模的方法包括通过电铸从具有焊盘和槽的母板形成第一压模，通过电铸从第一压模形成其宽度为GW的第二压模，形成层压膜在第二压模上具有LLT的厚度，在层压膜上形成第二释放层，厚度为TLT的转印层和具有ELT厚度的第三电铸层，剥离转印层和第三电铸从而形成第三压模，并且以蚀刻厚度的ET对第三压模上的转印层进行各向同性蚀刻，以减小第三压模的焊盘的宽度，其中满足以下关系：10nm＆nlE; ELT 和ET＆nlE; TLT。

96. 发明授权

US07738203B2 Magnetic recording medium Formatted with ROM and RAM regions 失效
标题翻译：磁记录介质格式化ROM和RAM区域
公开(公告)号：US07738203B2
公开(公告)日：2010-06-15
申请号：US11092682
申请日：2005-03-30
申请人： Masatoshi Sakurai , Seiji Morita , Akira Kikitsu , Yoshiyuki Kamata
发明人： Masatoshi Sakurai , Seiji Morita , Akira Kikitsu , Yoshiyuki Kamata
IPC分类号： G11B5/09 , G11B20/12 , G11B5/02
CPC分类号： B82Y10/00 , G11B5/743 , G11B5/746 , G11B5/82 , G11B5/865
摘要： A magnetic recording medium has a RAM region and a ROM region. The RAM region includes a plurality of first tracks each having a first magnetic portion. The first magnetic portions in adjacent tracks are separated from each other. The ROM region includes a plurality of second tracks each having a second magnetic portion. A width of the second magnetic portions in a direction perpendicular to a track direction of the first tracks is larger than that of the first magnetic portions in the perpendicular direction.
摘要翻译：磁记录介质具有RAM区域和ROM区域。 RAM区域包括多个具有第一磁性部分的第一轨道。相邻轨道中的第一磁性部分彼此分离。 ROM区域包括多个具有第二磁性部分的第二磁道。第二磁性部分在与第一磁道的轨道方向垂直的方向上的宽度大于垂直方向上的第一磁性部分的宽度。

97. 发明授权

US07708543B2 Stamper for magnetic recording media, method of manufacturing magnetic recording media using the same, and method of manufacturing stamper for magnetic recording media 失效
标题翻译：用于磁记录介质的压模，使用该磁记录介质的磁记录介质的制造方法以及制造用于磁记录介质的压模的方法
公开(公告)号：US07708543B2
公开(公告)日：2010-05-04
申请号：US11527467
申请日：2006-09-27
申请人： Satoshi Shirotori , Masatoshi Sakurai , Yoshiyuki Kamata , Akira Kikitsu
发明人： Satoshi Shirotori , Masatoshi Sakurai , Yoshiyuki Kamata , Akira Kikitsu
IPC分类号： B29C59/00 , B29D17/00
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/743 , G11B5/855 , Y10S425/81
摘要： According to one embodiment, a stamper for a magnetic recording media has patterns of protrusions and recesses to manufacture a discrete track recording type magnetic recording media having servo areas including an address portion, a preamble portion and a burst portion, and data areas including a recording track portion, the patterns of protrusions and recesses being formed at a pitch of 400 nm or less, in which a magnitude relation of depths of recesses corresponding to the address portion, the preamble portion, the burst portion and the recording track portion is inverted to a magnitude relation of area ratios of the protrusions to the recesses in the address portion, the preamble portion, the burst portion and the recording track portion.
摘要翻译：根据一个实施例，用于磁记录介质的压模具有突起和凹槽的图案，以制造具有包括地址部分，前导码部分和突发部分的伺服区域的离散轨道记录型磁记录介质，以及包括记录轨道部分，以400nm或更小的间距形成的突起和凹陷的图案，其中对应于地址部分，前导码部分，突发部分和记录轨道部分的凹部的深度的大小关系被反转到在地址部分，前导码部分，突发部分和记录轨道部分中的突起与凹部的面积比的大小关系。

98. 发明授权

US07618549B2 Method of forming patterns and method of manufacturing magnetic recording media 失效
标题翻译：形成图案的方法和制造磁记录介质的方法
公开(公告)号：US07618549B2
公开(公告)日：2009-11-17
申请号：US11580862
申请日：2006-10-16
申请人： Satoshi Shirotori , Yoshiyuki Kamata , Masatoshi Sakurai , Akira Kikitsu
发明人： Satoshi Shirotori , Yoshiyuki Kamata , Masatoshi Sakurai , Akira Kikitsu
IPC分类号： B44C1/22
CPC分类号： C23F4/00 , B82Y10/00 , C23C2/02 , C23C2/26 , C23C4/02 , C23C4/18 , G03F7/0046 , G11B5/74 , G11B5/743 , G11B5/82 , G11B5/855 , H01F41/34
摘要： According to one embodiment, a method of forming patterns is provided, in which the method including forming a resist on an underlying material, pressing a stamper having patterns of protrusions and recesses, sidewalls of which protrusions are tapered, onto the resist to form a patterned resist having patterns of protrusions and recesses, sidewalls of which protrusions are tapered, forming a protective film on the patterned resist, performing anisotropic etching to leave the protective film on the tapered sidewalls of protrusions of the patterned resist, etching a resist residue remaining in recesses of the patterned resist using the protective film as a mask, and etching the underlying material using the protective film and the patterned resist as a mask.
摘要翻译：根据一个实施例，提供了一种形成图案的方法，其中所述方法包括在下层材料上形成抗蚀剂，将具有突起和凹陷图案的压模（其突出部分的锥形的侧壁）按压到抗蚀剂上以形成图案化抗蚀剂具有突起和凹陷的图案，其侧壁突起成锥形，在图案化的抗蚀剂上形成保护膜，进行各向异性蚀刻以将保护膜留在图案化抗蚀剂的突起的锥形侧壁上，蚀刻保留在凹槽中的抗蚀剂残渣使用保护膜作为掩模的图案化抗蚀剂，并使用保护膜和图案化的抗蚀剂作为掩模蚀刻下面的材料。

99. 发明申请

US20090142620A1 MAGNETIC RECORDING MEDIUM, METHOD OF MANUFACTURING THE SAME, AND MAGNETIC RECORDING/REPRODUCING APPARATUS 审中-公开
标题翻译：磁记录介质，其制造方法和磁记录/再现装置
公开(公告)号：US20090142620A1
公开(公告)日：2009-06-04
申请号：US12363078
申请日：2009-01-30
申请人： Takayuki Yamamoto , Masatoshi Sakurai , Yoshiyuki Kamata
发明人： Takayuki Yamamoto , Masatoshi Sakurai , Yoshiyuki Kamata
IPC分类号： G11B5/33 , G03F7/20
CPC分类号： B82Y10/00 , G11B5/012 , G11B5/72 , G11B5/743 , G11B5/82 , G11B5/855 , G11B2005/0029 , Y10T428/1164
摘要： A magnetic recording medium is obtained by easily patterning a magnetic recording layer without deteriorating its electromagnetic conversion characteristics, by forming a silicon-based protective film between the magnetic recording layer and a photoresist, and performing dry etching and oxygen plasma processing.
摘要翻译：通过在磁记录层和光致抗蚀剂之间形成硅基保护膜，进行干法蚀刻和氧等离子体处理，可以通过在不损害其电磁转换特性的情况下容易地构图磁记录层而获得磁记录介质。

100. 发明申请

US20080117544A1 MAGNETIC RECORDING MEDIUM, METHOD FOR MANUFACTURING THE SAME, AND MAGNETIC RECORDING APPARATUS 有权
标题翻译：磁记录介质，其制造方法和磁记录装置
公开(公告)号：US20080117544A1
公开(公告)日：2008-05-22
申请号：US11942904
申请日：2007-11-20
申请人： Masatoshi Sakurai , Yoshiyuki Kamata , Satoshi Shirotori
发明人： Masatoshi Sakurai , Yoshiyuki Kamata , Satoshi Shirotori
IPC分类号： G11B5/127 , G11B5/82
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/59688 , G11B5/743 , G11B5/855
摘要： According to one embodiment, a magnetic recording medium includes a substrate, and a magnetic recording layer formed on the substrate and having patterns of protrusions and recesses corresponding to a servo area and a recording area, in which the magnetic recording layer located in each of the recesses in the recording area has a thickness smaller than two thirds of a thickness of the magnetic recording layer corresponding to each of the protrusions, the magnetic recording layer remaining in each of the recesses in the recording area has a thickness of 1 nm or more, and a difference in height on a surface of the magnetic recording medium is 7 nm or less.
摘要翻译：根据一个实施例，磁记录介质包括基板和形成在基板上并具有对应于伺服区域和记录区域的突起和凹槽的图案的磁记录层，其中磁记录层位于每个记录区域中的凹部的厚度小于与每个突起相对应的磁记录层的厚度的三分之二，记录区域中每个凹槽中残留的磁记录层的厚度为1nm以上，并且磁记录介质的表面上的高度差为7nm以下。

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