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121. 发明授权

US07575705B2 Method for manufacturing a magnetic recording medium utilizing first and second imprint stampers 失效
标题翻译：利用第一和第二压印机制造磁记录介质的方法
公开(公告)号：US07575705B2
公开(公告)日：2009-08-18
申请号：US11691774
申请日：2007-03-27
申请人： Masatoshi Sakurai , Yoshiyuki Kamata
发明人： Masatoshi Sakurai , Yoshiyuki Kamata
IPC分类号： B28B3/00 , G11B5/70
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/743 , G11B5/746 , G11B5/865 , G11B2005/0002 , Y10S977/887 , Y10T29/49069
摘要： An imprint stamper for manufacturing a recording medium includes a first transfer region which corresponds to a servo region of a recording medium using a sector servo system and has a pattern with a plurality of quadrilateral recess or protrusion portions formed in a surface thereof, and a second transfer region which corresponds to a data region of the recording medium and has a pattern with a plurality of dots of recess or protrusion portions arrayed in a form of a hexagonal lattice in a surface thereof.
摘要翻译：用于制造记录介质的压印模具包括对应于使用扇区伺服系统的记录介质的伺服区域的第一传送区域，并且具有形成在其表面中的多个四边形凹部或突出部分的图案，第二传送区域转印区域对应于记录介质的数据区域，并且具有在其表面上排列成六角形格子形状的多个凹点或突起部分的图案。

122. 发明申请

US20050094298A1 Imprint stamper, method for manufacturing the same, recording medium, method for manufacturing the same, information recording/reproducing method, and information recording/reproducing apparatus 审中-公开
标题翻译：印刷压模，其制造方法，记录介质，其制造方法，信息记录/再现方法和信息记录/再现装置
公开(公告)号：US20050094298A1
公开(公告)日：2005-05-05
申请号：US10945030
申请日：2004-09-21
申请人： Masatoshi Sakurai , Yoshiyuki Kamata
发明人： Masatoshi Sakurai , Yoshiyuki Kamata
IPC分类号： G11B5/86
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/743 , G11B5/746 , G11B5/865 , G11B2005/0002 , Y10S977/887 , Y10T29/49069
摘要： An imprint stamper for manufacturing a recording medium includes a first transfer region which corresponds to a servo region of a recording medium using a sector servo system and has a pattern with a plurality of quadrilateral recess or protrusion portions formed in a surface thereof, and a second transfer region which corresponds to a data region of the recording medium and has a pattern with a plurality of dots of recess or protrusion portions arrayed in a form of a hexagonal lattice in a surface thereof.
摘要翻译：用于制造记录介质的压印模具包括对应于使用扇区伺服系统的记录介质的伺服区域的第一传送区域，并且具有形成在其表面中的多个四边形凹部或突出部分的图案，第二传送区域转印区域对应于记录介质的数据区域，并且具有在其表面上排列成六角形格子形状的多个凹点或突起部分的图案。

123. 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。

124. 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）。

125. 发明授权

US08057689B2 Method of manufacturing magnetic recording medium 有权
标题翻译：磁记录介质的制造方法
公开(公告)号：US08057689B2
公开(公告)日：2011-11-15
申请号：US12705490
申请日：2010-02-12
申请人： Yousuke Isowaki , Kaori Kimura , Yoshiyuki Kamata , Masatoshi Sakurai
发明人： Yousuke Isowaki , Kaori Kimura , Yoshiyuki Kamata , Masatoshi Sakurai
IPC分类号： B44C1/22
CPC分类号： G11B5/865 , B82Y10/00 , G11B5/743 , G11B5/746 , G11B5/855
摘要： According to one embodiment, a method of manufacturing a magnetic recording medium includes forming a first hard mask, a second hard mask and a resist on a magnetic recording layer, imprinting a stamper to the resist to transfer patterns of protrusions and recesses to the resist, removing residues remaining in the recesses of the patterned resist by means of a first etching gas, etching the second hard mask by means of the first etching gas using the patterned resist as a mask to transfer the patterns to the second hard mask, etching the first hard mask by means of a second etching gas different from the first etching gas using the second hard mask as a mask to transfer the patterns to the first hard mask, and performing ion beam etching in order to deactivate the magnetic recording layer exposed in the recesses and to remove the second hard mask.
摘要翻译：根据一个实施例，一种制造磁记录介质的方法包括在磁记录层上形成第一硬掩模，第二硬掩模和抗蚀剂，将压模压印到抗蚀剂上，以将凹凸图案转印到抗蚀剂上，通过第一蚀刻气体去除残留在图案化抗蚀剂的凹部中的残留物，利用第一蚀刻气体，使用图案化抗蚀剂作为掩模蚀刻第二硬掩模，以将图案转移到第二硬掩模，蚀刻第一通过不同于使用第二硬掩模的第一蚀刻气体作为掩模的第二蚀刻气体将硬掩模转印到第一硬掩模，并且执行离子束蚀刻以使暴露在凹部中的磁记录层失活并移除第二个硬掩模。

126. 发明授权

US08017023B2 Method of manufacturing magnetic recording medium and magnetic recording medium 有权
标题翻译：制造磁记录介质和磁记录介质的方法
公开(公告)号：US08017023B2
公开(公告)日：2011-09-13
申请号：US12882113
申请日：2010-09-14
申请人： Yoshiyuki Kamata , Kaori Kimura , Yousuke Isowaki , Masatoshi Sakurai
发明人： Yoshiyuki Kamata , Kaori Kimura , Yousuke Isowaki , Masatoshi Sakurai
IPC分类号： B44C1/22
CPC分类号： G11B5/855 , B82Y10/00 , G11B5/743
摘要： According to one embodiment, a method of manufacturing a magnetic recording medium includes forming a resist on a magnetic recording layer, imprinting a stamper to the resist to transfer patterns of protrusions and recesses, and partially etching the magnetic recording layer in areas not covered with patterns of the resist used as masks by ion beam etching using a mixed gas of He and N2 as well as modifying a remainder of the magnetic recording layer to leave behind a nonmagnetic layer having a reduced thickness.
摘要翻译：根据一个实施例，制造磁记录介质的方法包括在磁记录层上形成抗蚀剂，将压模压印到抗蚀剂上以转印突起和凹陷的图案，以及在不覆盖图案的区域中部分蚀刻磁记录层通过使用He和N2的混合气体的离子束蚀刻用作掩模的抗蚀剂以及修改磁记录层的剩余部分留下厚度减小的非磁性层。

127. 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。

128. 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。

129. 发明申请

US20080192606A1 Magnetic recording medium, method of fabricating 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：US20080192606A1
公开(公告)日：2008-08-14
申请号：US11902066
申请日：2007-09-18
申请人： Kaori Kimura , Masatoshi Sakurai , Yoshiyuki Kamata
发明人： Kaori Kimura , Masatoshi Sakurai , Yoshiyuki Kamata
IPC分类号： G11B7/20 , G11B5/33
CPC分类号： G11B5/746 , B82Y10/00 , G11B5/743 , G11B5/82 , G11B9/1472
摘要： A magnetic recording medium includes recording regions formed on a substrate, isolation regions formed between the recording regions so as to define the recording regions, and recording dots formed of a dot-like magnetic recording layer and arrayed in the recording regions, the recording dots including first recording dots arrayed in a line in each edge part of each recording region along the isolation region and second recording dots arrayed into a regular lattice in a central part of each recording region. A distance between a first recording dot and a second recording dot which are nearest neighboring is larger than a distance between second recording dots which are nearest neighboring.
摘要翻译：磁记录介质包括形成在基板上的记录区域，形成在记录区域之间的隔离区域，以便限定记录区域，以及记录由点状磁记录层形成并排列在记录区域中的点，记录点包括沿着隔离区域在每个记录区域的每个边缘部分中排列成一行的第一记录点和排列成每个记录区域的中心部分中的规则格子的第二记录点。最邻近的第一记录点和第二记录点之间的距离大于最邻近的第二记录点之间的距离。

130. 发明授权

US07203969B2 Recording medium, recording-medium management method, and recording-medium management system 有权
标题翻译：记录介质，记录介质管理方法和记录介质管理系统
公开(公告)号：US07203969B2
公开(公告)日：2007-04-10
申请号：US10606788
申请日：2003-06-27
申请人： Masatoshi Sakurai , Yoshiyuki Kamata , Katsuyuki Naito
发明人： Masatoshi Sakurai , Yoshiyuki Kamata , Katsuyuki Naito
IPC分类号： G06F11/00
CPC分类号： G11B20/0021 , G11B20/00086 , G11B20/00108 , G11B20/00173 , G11B20/00326 , G11B23/288 , G11B2020/10898
摘要： A recording-medium management system comprising: a reproduction part; a recording part; and a control part. The control part performs a first through fourth control. The first control is to obtain a first data line from an authentication region of a recording medium by making the reproduction part read the authentication region, the authentication region including a first data pattern of a RAM bit and a ROM bit, the first data line being corresponding to the first data pattern, the RAM bit being over-writable of data at least once by a first writing condition, and the ROM bit being not over-writable of data by the first writing condition. The second control is to make the recording part overwrite predetermined data to the RAM bit. The third control is to obtain a second data line from the recording-medium, the second data line being corresponding to a second data pattern of the over-written RAM bit and the ROM bit. The fourth control is to perform an authentication with regard to the recording medium in reference to the first and second data lines.
摘要翻译：一种记录介质管理系统，包括：再现部分; 录音部分; 和控制部分。控制部执行第一至第四控制。第一控制是通过使再现部分读取认证区域从认证区域获得第一数据行，认证区域包括RAM位和ROM位的第一数据模式，第一数据行是对应于第一数据模式，RAM位由于第一写入条件至少一次被数据重写，并且ROM位不被第一写入条件的数据过度写入。第二控制是使记录部分将预定数据重写到RAM位。第三控制是从记录介质获得第二数据线，第二数据线对应于被重写的RAM位和ROM位的第二数据模式。第四控制是参考第一和第二数据线执行关于记录介质的认证。

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