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1. 发明授权

US07811077B2 Stamper, imprinting method, and method of manufacturing an information recording medium 失效
标题翻译：压模，压印方法和信息记录介质的制造方法
公开(公告)号：US07811077B2
公开(公告)日：2010-10-12
申请号：US11536846
申请日：2006-09-29
申请人： Kazuhiro Hattori , Kazuya Shimakawa
发明人： Kazuhiro Hattori , Kazuya Shimakawa
IPC分类号： B29C59/00 , B29D17/00
CPC分类号： B29C59/022 , B29C2059/023 , B29L2017/005 , G11B5/855 , G11B7/263 , Y10S425/81
摘要： There is provided a stamper on which stamper-side concave/convex patterns are formed and which is capable of manufacturing an information recording medium on which at least servo patterns are formed by concave/convex patterns. First convex parts that are continuously formed along a direction corresponding to a radial direction of the information recording medium are formed in the stamper-side concave/convex patterns. Each of the first convex parts is formed so that a height of a part of the first convex part from a reference plane, which is set between a front surface and a rear surface of the stamper, to protruding end of the first convex part increases as a length of the part of the first convex part in a direction corresponding to a circumferential direction of the information recording medium increases.
摘要翻译：提供了一种压模，其上形成有压模侧凹凸图案，并且能够制造至少通过凹凸图案形成伺服图案的信息记录介质。沿着与信息记录介质的径向对应的方向连续形成的第一凸部形成在压模侧凹凸图案中。每个第一凸部形成为使得第一凸部的从设置在压模的前表面和后表面之间的参考平面的一部分的高度到第一凸部的突出端的高度随着第一凸部的与信息记录介质的圆周方向对应的方向的一部分的长度增加。

2. 发明申请

US20060098343A1 Magnetic recording medium and magnetic recording and reproduction apparatus 失效
标题翻译：磁记录介质和磁记录和再现设备
公开(公告)号：US20060098343A1
公开(公告)日：2006-05-11
申请号：US11220542
申请日：2005-09-08
申请人： Kazuhiro Hattori , Kazuya Shimakawa
发明人： Kazuhiro Hattori , Kazuya Shimakawa
IPC分类号： G11B5/82
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/667 , G11B5/732 , G11B5/7325 , G11B5/743 , G11B5/855
摘要： A magnetic recording medium is provided, which includes a recording layer formed in a concavo-convex pattern to achieve high areal density and can ensure good recording and reproduction characteristics so as to provide high reliability. The magnetic recording medium has a substrate and a recording layer formed in the predetermined concavo-convex pattern over the substrate. The recording layer has a non-recording element and recording elements. The non-recording element is formed as convex portion of the concavo-convex pattern at an outer circumferential end and/or an inner circumferential end. The recording elements are formed as convex portions of the concavo-convex pattern in a region other than a region where the non-recording element is arranged. The magnetic recording medium further has a non-magnetic material with which concave portions of the concavo-convex pattern are filled and which covers the non-recording element, and a protective layer formed over the recording layer and the non-magnetic material.
摘要翻译：提供了一种磁记录介质，其包括形成为凹凸图案的记录层以实现高面密度并且可以确保良好的记录和再现特性，从而提供高可靠性。磁记录介质具有在衬底上形成为预定凹凸图案的衬底和记录层。记录层具有非记录元件和记录元件。非记录元件在外周端和/或内周端形成凹凸图案的凸部。记录元件在非记录元件布置的区域以外的区域中形成为凹凸图案的凸部。磁记录介质还具有非磁性材料，凹凸图案的凹部被填充并覆盖非记录元件，以及形成在记录层和非磁性材料上的保护层。

3. 发明授权

US07385785B2 Magnetic recording medium and magnetic recording and reproduction apparatus 失效
标题翻译：磁记录介质和磁记录和再现设备
公开(公告)号：US07385785B2
公开(公告)日：2008-06-10
申请号：US11220542
申请日：2005-09-08
申请人： Kazuhiro Hattori , Kazuya Shimakawa
发明人： Kazuhiro Hattori , Kazuya Shimakawa
IPC分类号： G11B5/82
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/667 , G11B5/732 , G11B5/7325 , G11B5/743 , G11B5/855
摘要： A magnetic recording medium is provided, which includes a recording layer formed in a concavo-convex pattern to achieve high areal density and can ensure good recording and reproduction characteristics so as to provide high reliability. The magnetic recording medium has a substrate and a recording layer formed in the predetermined concavo-convex pattern over the substrate. The recording layer has a non-recording element and recording elements. The non-recording element is formed as convex portion of the concavo-convex pattern at an outer circumferential end and/or an inner circumferential end. The recording elements are formed as convex portions of the concavo-convex pattern in a region other than a region where the non-recording element is arranged. The magnetic recording medium further has a non-magnetic material with which concave portions of the concavo-convex pattern are filled and which covers the non-recording element, and a protective layer formed over the recording layer and the non-magnetic material.
摘要翻译：提供了一种磁记录介质，其包括形成为凹凸图案的记录层以实现高面密度并且可以确保良好的记录和再现特性，从而提供高可靠性。磁记录介质具有在衬底上形成为预定凹凸图案的衬底和记录层。记录层具有非记录元件和记录元件。非记录元件在外周端和/或内周端形成凹凸图案的凸部。记录元件在非记录元件布置的区域以外的区域中形成为凹凸图案的凸部。磁记录介质还具有非磁性材料，凹凸图案的凹部被填充并且覆盖非记录元件，以及形成在记录层和非磁性材料上的保护层。

4. 发明授权

US07352529B2 Magnetic recording medium and magnetic recording and reproducing device using a magnetic recording layer formed with a predetermined concavo-convex pattern 失效
标题翻译：磁记录介质和使用以预定的凹凸图案形成的磁记录层的磁记录和再现装置
公开(公告)号：US07352529B2
公开(公告)日：2008-04-01
申请号：US11061503
申请日：2005-02-22
申请人： Mikiharu Hibi , Kazuhiro Hattori , Kazuya Shimakawa
发明人： Mikiharu Hibi , Kazuhiro Hattori , Kazuya Shimakawa
IPC分类号： G11B5/82 , G11B5/64
CPC分类号： G11B5/855
摘要： A magnetic recording medium including at least a disk substrate 1A, a magnetic recording layer 5 formed with a predetermined concavo-convex pattern on the disk substrate 1A, and a non-magnetic layer 6 filled into concave portions of the concavo-convex pattern, so as to have data track regions 20 and servo pattern regions 21. Due to the existence of concaves and convexes in the surface of each servo pattern region 21, the foregoing problem is solved. On this occasion, arithmetical mean deviation of the assessed profile Ra of the surface of each servo pattern region 21 is preferably not lower than 0.3 nm. The difference in surface level between each concave and each convex existing in the surface of the servo pattern region 21 is preferably not larger than 6 nm.
摘要翻译：一种磁记录介质，至少包括盘基片1A，在盘基片1A上形成预定的凹凸图形的磁记录层5和填充在凹凸图案的凹部中的非磁性层6 ，以便具有数据轨道区域20和伺服模式区域21。由于在每个伺服图案区域21的表面中存在凹凸，所以解决了上述问题。在这种情况下，每个伺服图案区域21的表面的评估轮廓Ra的算术平均偏差优选地不低于0.3nm。存在于伺服图案区域21的表面中的每个凹部和每个凸起之间的表面水平差异优选不大于6nm。

5. 发明申请

US20080087631A1 Ion gun, ion beam etching apparatus, ion beam etching facility, etching method, and method for manufacturing magnetic recording medium 审中-公开
标题翻译：离子枪，离子束蚀刻装置，离子束蚀刻装置，蚀刻方法以及制造磁记录介质的方法
公开(公告)号：US20080087631A1
公开(公告)日：2008-04-17
申请号：US11907269
申请日：2007-10-10
申请人： Kazuhiro Hattori , Kazuya Shimakawa , Mitsuru Takai
发明人： Kazuhiro Hattori , Kazuya Shimakawa , Mitsuru Takai
IPC分类号： H01J27/02 , B44C1/22
CPC分类号： H01J27/024 , H01J37/08 , H01J37/3053 , H01J2237/24528
摘要： A compact ion gun capable of flattening both sides of a substrate, an ion beam etching apparatus provided with the ion gun, an ion beam etching facility, an etching method using them, and a method for manufacturing a magnetic recording medium are provided. The ion gun includes a plasma generation source and an extraction electrode unit. The extraction electrode unit has: a first electrode unit including a portion of a plurality of electrode plates on a first side of a reference plane intersecting the electrode plates, the portion being inclined with respect to the reference plane so as to face an irradiation target area along the reference plane; and a second electrode unit including a portion of the electrode plates on a second side of the reference plane, the portion being inclined with respect to the reference plane so as to face the irradiation target area along the reference plane.
摘要翻译：提供能够使基板的两面变平的紧凑型离子枪，设置有离子枪的离子束蚀刻装置，离子束蚀刻装置，使用它们的蚀刻方法和制造磁记录介质的方法。离子枪包括等离子体产生源和引出电极单元。提取电极单元具有：第一电极单元，其包括在与电极板相交的参考平面的第一侧上的多个电极板的一部分，该部分相对于参考平面倾斜以面对照射目标区域沿着参考平面; 以及第二电极单元，其包括在所述参考平面的第二侧上的所述电极板的一部分，所述部分相对于所述参考平面倾斜，以便沿着所述参考平面面对所述照射目标区域。

6. 发明申请

US20080237938A1 Method for manufacturing information recording medium, method of transferring concavo-convex pattern, and transfer apparatus 审中-公开
标题翻译：信息记录介质的制造方法，凹凸图案的传送方法以及传送装置
公开(公告)号：US20080237938A1
公开(公告)日：2008-10-02
申请号：US12078166
申请日：2008-03-27
申请人： Narutoshi Fukuzawa , Minoru Fujita , Daisuke Yoshitoku , Mitsuru Takai , Kazuya Shimakawa
发明人： Narutoshi Fukuzawa , Minoru Fujita , Daisuke Yoshitoku , Mitsuru Takai , Kazuya Shimakawa
IPC分类号： B29C35/08
CPC分类号： B29C37/0053 , B29C35/0894 , B29C2035/0827 , B29L2017/005 , G11B5/855 , G11B7/263
摘要： A method for manufacturing an information recording medium, a method of transferring a concavo-convex pattern, and a transfer apparatus are provided which are capable of curing a resin material with reliability even when using a light-transmitting stamper repeatedly. A stamper made of a light-transmitting resin, having a predetermined concavo-convex pattern formed on its transfer area, is inspected for an optical characteristic. The stamper is brought into contact with an energy-ray curable resin material applied to an object to be processed, thereby transferring the concavo-convex pattern to the resin material, and the resin material is irradiated with an energy ray through the stamper so that the resin material cures. The stamper is used a plurality of times to repeat these steps a plurality of times, thereby manufacturing a plurality of information recording media.
摘要翻译：提供一种用于制造信息记录介质的方法，传递凹凸图案的方法和传送装置，其即使在重复使用透光压模时也能够可靠地固化树脂材料。检查由传输区域形成的具有预定凹凸图案的透光树脂制成的压模的光学特性。使压模与施加到被处理物体的能量射线固化性树脂材料接触，由此将凹凸图案转印到树脂材料上，并通过压模对能量射线照射树脂材料，使得树脂材料固化。多次使用压模多次重复这些步骤，从而制造多个信息记录介质。

7. 发明申请

US20080144230A1 Magnetic head and magnetic recording-reproducing apparatus 失效
标题翻译：磁头和磁记录再现装置
公开(公告)号：US20080144230A1
公开(公告)日：2008-06-19
申请号：US12000283
申请日：2007-12-11
申请人： Akimasa Kaizu , Yoshikazu Soeno , Kazuya Shimakawa
发明人： Akimasa Kaizu , Yoshikazu Soeno , Kazuya Shimakawa
IPC分类号： G11B5/33
CPC分类号： G11B5/1278 , B82Y10/00 , G11B5/11 , G11B5/232 , G11B5/3116 , G11B5/3146 , G11B5/315 , G11B5/743 , G11B5/82 , G11B5/855
摘要： A magnetic recording-reproducing apparatus includes: a magnetic recording medium in which portions corresponding to track portions serve as recording areas and in which portions between the recording areas serve as non-recording areas; and a magnetic head having a main pole and a side shield disposed on both sides of the main pole in a cross-track direction. In the magnetic recording-reproducing apparatus, following inequality (I) is satisfied: S>Tw/2+Gw (I) where Tw is a track width, Gw is a gap width, and S is a distance between the center of the main pole of the magnetic head and an edge on the main pole side of each of the side shields.
摘要翻译：磁记录再现装置包括：磁记录介质，其中对应于轨道部分的部分用作记录区域，并且记录区域之间的部分用作非记录区域; 以及磁头，其具有设置在所述主极的横向方向的两侧上的主极和侧面屏蔽。在磁记录重放装置中，满足以下不等式（I）：<？in-line-formula description =“In-line formula”end =“lead”？> S> Tw / 2 + Gw（I）在线公式描述=“在线公式”end =“tail”？>其中Tw是轨道宽度，Gw是间隙宽度，S是磁头的主极的中心与每个侧护板的主极侧上的边缘。

8. 发明申请

US20050286155A1 Magnetic recording and reproducing apparatus and magnetic recording medium 失效
标题翻译：磁记录和再现装置和磁记录介质
公开(公告)号：US20050286155A1
公开(公告)日：2005-12-29
申请号：US11111943
申请日：2005-04-22
申请人： Katsumichi Tagami , Yoshikazu Soeno , Kazuya Shimakawa , Hiroki Matsukuma
发明人： Katsumichi Tagami , Yoshikazu Soeno , Kazuya Shimakawa , Hiroki Matsukuma
IPC分类号： G11B5/09 , G11B5/596 , G11B5/82
CPC分类号： G11B5/855 , B82Y10/00 , G11B5/59655 , G11B5/743 , G11B5/82
摘要： The burst pattern shape in a discrete medium is set to a shape (truncated quadrangular pyramid shape) having substantially trapezoidal shapes in a track width direction and in a track circumferential direction, respectively, and a predetermined relationship is satisfied among W1, W2, Tp, and Wr where W1 represents an upper side corresponding to the surface of a convex magnetic recording layer and W2 a lower side corresponding to the lower surface of the convex magnetic recording layer in the trapezoidal shape in the track width direction, Tp represents a data track pitch of a data information recording portion, and Wr represents a read width of a magnetic head. Therefore, the burst pattern shape makes it possible to largely reduce a production load in processing and still to obtain an accurate position error signal.
摘要翻译：将离散介质中的突发图案形状分别设定为在轨道宽度方向和轨道圆周方向上具有大致梯形形状的形状（截头四角锥形状），并且在W 1，W 2， Tp和Wr，其中W 1表示对应于凸形磁记录层的表面的上侧，W 2表示与轨道宽度方向上的梯形形状的凸形磁记录层的下表面对应的下侧，Tp表示数据信息记录部分的数据磁道间距，Wr表示磁头的读宽度。因此，突发图案形状使得可以大大降低处理中的生产负荷，并且仍然获得精确的位置误差信号。

9. 发明授权

US07940494B2 Magnetic recording medium, magnetic recording and reproducing apparatus, and method for manufacturing magnetic recording medium 失效
标题翻译：磁记录介质，磁记录和再现装置以及磁记录介质的制造方法
公开(公告)号：US07940494B2
公开(公告)日：2011-05-10
申请号：US12003919
申请日：2008-01-03
申请人： Takahiro Suwa , Kazuya Shimakawa
发明人： Takahiro Suwa , Kazuya Shimakawa
IPC分类号： G11B5/33
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/743 , G11B5/855
摘要： The magnetic recording medium includes a substrate and a recording layer formed in a predetermined concavo-convex pattern over the substrate, the recording layer including recording elements each formed as a convex portion of the recording layer. Surface steps are formed in an outer area including a radially outermost portion of a recording area. Each surface step is formed in such a manner that a portion over a concave portion between the recording elements is recessed toward the substrate to a level below a portion over the recording element. The surface steps are formed such that the recording area can be sectioned into an annular area adjoining the outer area and the outer area where height of the surface steps is larger than that in the annular area.
摘要翻译：磁记录介质包括基板和在基板上以预定的凹凸图案形成的记录层，记录层包括各自形成为记录层的凸部的记录元件。表面台阶形成在包括记录区域的径向最外侧部分的外部区域中。每个表面台阶形成为使得记录元件之间的凹部上方的部分朝向基板凹陷到记录元件上方的一个以下的水平。表面台阶形成为使得记录区域可以被分割成与外部区域相邻的环形区域和表面台阶的高度大于环形区域中的高度的外部区域。

10. 发明授权

US07864469B2 Information recording medium, recording/reproducing apparatus, and stamper 失效
标题翻译：信息记录介质，记录/再现装置和压模
公开(公告)号：US07864469B2
公开(公告)日：2011-01-04
申请号：US12342860
申请日：2008-12-23
申请人： Yoshikazu Soeno , Kazuya Shimakawa
发明人： Yoshikazu Soeno , Kazuya Shimakawa
IPC分类号： G11B5/09
CPC分类号： G11B5/82 , B29C43/36 , B29C2043/3634 , B82Y10/00 , G11B5/743 , G11B5/855
摘要： Data track patterns and servo patterns are formed on an information recording medium by concave/convex patterns divided into ring-shaped regions that are concentric with the data track patterns. In the servo patterns, a unit convex length and a unit concave length along the direction of rotation increase in each ring-shaped region from an inside to an outside of the ring-shaped region in proportion to the distance from the center of the data track patterns and a value produced by dividing an average unit convex (or concave) length inside each ring-shaped region by a distance from the center to the ring-shaped region decreases toward the outer periphery of the medium. The ring-shaped regions include plural first regions between an innermost region and an outermost region. Respective lengths along a radial direction of the first regions increase toward an outer periphery of the medium.
摘要翻译：数据轨道图案和伺服图案通过分成与数据轨道图案同心的环形区域的凹/凸图案形成在信息记录介质上。在伺服图案中，沿着旋转方向的单位凸长度和单位凹长度在每个环形区域中从环形区域的内部到外部成比例地与数据轨迹的中心的距离成比例地增加通过将每个环形区域内的平均单位凸（或凹）长度除以从中心到环状区域的距离而产生的图案和值朝向介质的外周减小。环状区域包括在最内区域和最外区域之间的多个第一区域。沿着第一区域的径向的各长度朝向介质的外周边增加。

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