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31. 发明申请

US20060029834A1 Magnetic recording medium and magnetic recording and reproducing apparatus 失效
公开(公告)号：US20060029834A1
公开(公告)日：2006-02-09
申请号：US11187912
申请日：2005-07-25
申请人： Takahiro Suwa , Kazuya Shimakawa
发明人： Takahiro Suwa , Kazuya Shimakawa
IPC分类号： G11B5/706
CPC分类号： G11B5/855
摘要： A magnetic recording medium in which a recording layer is formed in a predetermined concavo-convex pattern and recording and reproducing apparatus comprising the magnetic recording medium are disclosed. The magnetic recording medium has a high areal density and high reliability since the occurrence of a crash of a magnetic head is suppressed. The magnetic recording medium comprises a recording layer formed over a substrate in a predetermined concavo-convex pattern to form recording elements as a convex portion of the concavo-convex pattern and a non-magnetic filler element filled in a concave portion between the recording elements. In this configuration, the top surface of the filler element is formed in a shape partially recessed toward the substrate side to form a groove having a width smaller than the width of the concave portion on the surface of the magnetic recording medium.

32. 发明申请

US20050233176A1 Information recording medium 失效
标题翻译：信息记录介质
公开(公告)号：US20050233176A1
公开(公告)日：2005-10-20
申请号：US11085522
申请日：2005-03-22
申请人： Mitsuru Takai , Yoshikazu Soeno , Katsumichi Tagami , Kazuya Shimakawa , Takahiro Suwa
发明人： Mitsuru Takai , Yoshikazu Soeno , Katsumichi Tagami , Kazuya Shimakawa , Takahiro Suwa
IPC分类号： G11B5/65 , G11B5/66 , G11B5/72 , G11B5/73 , G11B5/82 , G11B5/855 , G11B33/14
CPC分类号： G11B5/855
摘要： In an information recording medium where respective concave parts of a magnetic layer, which is formed on at least one side e of a substrate and in which a predetermined convex/concave pattern has been formed, are filled with non-magnetic material and non-magnetic layers are formed by the non-magnetic material in at least partial regions of respective upper surfaces of respective convex parts of the magnetic layer, the non-magnetic layers are formed so that parts thereof protrude further in a direction in which the convex parts protrude than other parts of the non-magnetic layers.
摘要翻译：在其中形成在基板的至少一个面e上并且其中形成有预定的凸/凹图案的磁性层的各个凹部填充有非磁性材料和非磁性的信息记录介质中在磁性层的各个凸部的各个上表面的至少部分区域中，由非磁性材料形成层，非磁性层形成为使得其部分在凸部突出的方向上进一步突出，其他部分的非磁性层。

33. 发明申请

US20050213239A1 Magnetic recording medium and magnetic recording and reproducing device 失效
标题翻译：磁记录介质和磁记录和再现装置
公开(公告)号：US20050213239A1
公开(公告)日：2005-09-29
申请号：US11061503
申请日：2005-02-22
申请人： Mikiharu Hibi , Mitsuru Takai , Kazuya Shimakawa
发明人： Mikiharu Hibi , Mitsuru Takai , Kazuya Shimakawa
IPC分类号： G11B5/65 , G11B5/09 , G11B5/82 , G11B5/855
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。

34. 发明授权

US08298691B2 Magnetic recording medium and magnetic recording and reproducing apparatus 失效
标题翻译：磁记录介质和磁记录和再现装置
公开(公告)号：US08298691B2
公开(公告)日：2012-10-30
申请号：US12659407
申请日：2010-03-08
申请人： Yoshinori Uchiyama , Takahiro Suwa , Narutoshi Fukuzawa , Kazuya Shimakawa
发明人： Yoshinori Uchiyama , Takahiro Suwa , Narutoshi Fukuzawa , Kazuya Shimakawa
IPC分类号： G11B5/66
CPC分类号： G11B5/855 , B82Y10/00 , G11B5/743 , G11B5/746 , G11B5/82 , G11B5/865 , Y10T428/1171
摘要： A magnetic recording medium is provided in which recording elements and concave portions have a clear difference in terms of magnetism at the boundaries therebetween, and which has favorable production efficiency. The magnetic recording medium includes a substrate; a recording layer formed in a predetermined concavo-convex pattern over the substrate, convex portions of the concavo-convex pattern serving as recording elements; and a filler portion filling a concave portion between the recording elements. A center part of a bottom surface of the concave portion protrudes from edge parts of the bottom surface of the concave portion in a direction away from the substrate.
摘要翻译：提供一种磁记录介质，其中记录元件和凹部在它们之间的边界处的磁性方面具有明显的差异，并且具有良好的生产效率。磁记录介质包括基板; 在基板上形成为预定的凹凸图案的记录层，作为记录元件的凹凸图案的凸部; 以及填充部分填充记录元件之间的凹部。凹部的底面的中心部从远离基板的方向从凹部的底面的边缘部突出。

35. 发明授权

US08040633B2 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：US08040633B2
公开(公告)日：2011-10-18
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： G11B5/82 , G11B5/127
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）：其中Tw是磁道宽度的S> Tw / 2 + Gw（I），Gw是间隙宽度，S是主体的中心之间的距离磁头的极点和每个侧护板的主极侧上的边缘。

36. 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。

37. 发明申请

US20100239888A1 Magnetic recording medium and magnetic recording and reproducing apparatus 失效
标题翻译：磁记录介质和磁记录和再现装置
公开(公告)号：US20100239888A1
公开(公告)日：2010-09-23
申请号：US12659407
申请日：2010-03-08
申请人： Yoshinori Uchiyama , Takahiro Suwa , Narutoshi Fukuzawa , Kazuya Shimakawa
发明人： Yoshinori Uchiyama , Takahiro Suwa , Narutoshi Fukuzawa , Kazuya Shimakawa
IPC分类号： G11B5/33
CPC分类号： G11B5/855 , B82Y10/00 , G11B5/743 , G11B5/746 , G11B5/82 , G11B5/865 , Y10T428/1171
摘要： A magnetic recording medium is provided in which recording elements and concave portions have a clear difference in terms of magnetism at the boundaries therebetween, and which has favorable production efficiency. The magnetic recording medium includes a substrate; a recording layer formed in a predetermined concavo-convex pattern over the substrate, convex portions of the concavo-convex pattern serving as recording elements; and a filler portion filling a concave portion between the recording elements. A center part of a bottom surface of the concave portion protrudes from edge parts of the bottom surface of the concave portion in a direction away from the substrate.
摘要翻译：提供一种磁记录介质，其中记录元件和凹部在它们之间的边界处的磁性方面具有明显的差异，并且具有良好的生产效率。磁记录介质包括基板; 在基板上形成为预定的凹凸图案的记录层，作为记录元件的凹凸图案的凸部; 以及填充部分填充记录元件之间的凹部。凹部的底面的中心部从远离基板的方向从凹部的底面的边缘部突出。

38. 发明授权

US07672075B2 Magnetic recording medium, recording/reproducing apparatus, and stamper 失效
标题翻译：磁记录介质，记录/再现装置和压模
公开(公告)号：US07672075B2
公开(公告)日：2010-03-02
申请号：US11265152
申请日：2005-11-03
申请人： Yoshikazu Soeno , Kazuya Shimakawa
发明人： Yoshikazu Soeno , Kazuya Shimakawa
IPC分类号： G11B5/596 , G11B5/82
CPC分类号： G11B5/82 , B82Y10/00 , B82Y40/00 , G03F7/0002 , G11B5/59688 , G11B5/743 , G11B5/855 , G11B5/865
摘要： In a magnetic recording medium including a servo pattern region having a servo pattern formed of a concave/convex pattern having convex portions and concave portions and a data recording region, the region having a data track pattern, the convex portions are formed in an address pattern region of the servo pattern region such that the maximum opening lengths, which are located in the respective same radius regions of the respective opening lengths along the rotating direction of a substrate of the concave portions constituting the concave/convex pattern are set to first lengths that are double the minimum opening lengths along the rotating direction of the concave portions in the respective same radius regions. With this arrangement, the magnetic recording medium can securely read a magnetic signal and has a servo pattern having excellent surface smoothness.
摘要翻译：在包括具有由具有凸部和凹部的凹凸图案形成的伺服图案的伺服图案区域和数据记录区域的磁记录介质中，所述区域具有数据轨道图案，所述凸部以地址图形形成区域，使得位于构成凹凸图案的凹部的基板的旋转方向的各开口长度的各自的相同半径区域中的最大开口长度被设定为第一长度，是在相同的半径区域中沿着凹部的旋转方向的最小开口长度的两倍。通过这种布置，磁记录介质可以安全地读取磁信号并具有具有优异表面平滑度的伺服图案。

39. 发明授权

US07604880B2 Information recording medium 失效
标题翻译：信息记录介质
公开(公告)号：US07604880B2
公开(公告)日：2009-10-20
申请号：US11085522
申请日：2005-03-22
申请人： Mitsuru Takai , Yoshikazu Soeno , Katsumichi Tagami , Kazuya Shimakawa , Takahiro Suwa
发明人： Mitsuru Takai , Yoshikazu Soeno , Katsumichi Tagami , Kazuya Shimakawa , Takahiro Suwa
IPC分类号： G11B5/64 , G11B5/72
CPC分类号： G11B5/855
摘要： In an information recording medium where respective concave parts of a magnetic layer, which is formed on at least one side e of a substrate and in which a predetermined convex/concave pattern has been formed, are filled with non-magnetic material and non-magnetic layers are formed by the non-magnetic material in at least partial regions of respective upper surfaces of respective convex parts of the magnetic layer, the non-magnetic layers are formed so that parts thereof protrude further in a direction in which the convex parts protrude than other parts of the non-magnetic layers.
摘要翻译：在其中形成在基板的至少一个面e上并且其中形成有预定的凸/凹图案的磁性层的各个凹部填充有非磁性材料和非磁性的信息记录介质中在磁性层的各个凸部的各个上表面的至少部分区域中，由非磁性材料形成层，非磁性层形成为使得其部分在凸部突出的方向上进一步突出，其他部分的非磁性层。

40. 发明授权

US07482070B2 Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US07482070B2
公开(公告)日：2009-01-27
申请号：US11115116
申请日：2005-04-27
申请人： Mitsuru Takai , Yoshikazu Soeno , Katsumichi Tagami , Kazuya Shimakawa
发明人： Mitsuru Takai , Yoshikazu Soeno , Katsumichi Tagami , Kazuya Shimakawa
IPC分类号： G11B5/66
CPC分类号： G11B11/10584 , B82Y10/00 , G11B5/743 , G11B5/82 , G11B5/855
摘要： A magnetic recording medium having high reliability is provided, in which concave portions between recording elements formed as convex portions of a concavo-convex pattern are approximately completely filled with a non-magnetic material. The magnetic recording medium is a plate-like body including: a substrate; a recording layer that is formed in a predetermined concavo-convex pattern over the substrate and includes recording elements for recording information formed as convex portions of the concavo-convex pattern; and the non-magnetic material filling concave portions between the recording elements. Side faces of the recording elements are inclined to face a surface of the plate-like body on a side toward which the recording elements 16 project in the concavo-convex pattern. An inclination angle of the side faces of the recording elements with respect to a direction perpendicular to that surface is smaller than 90° and 5° or more.
摘要翻译：提供了具有高可靠性的磁记录介质，其中形成为凹凸图案的凸部的记录元件之间的凹部大致完全填充有非磁性材料。磁记录介质是板状体，包括：基板; 记录层，其形成在所述基板上的预定的凹凸图案中，并且包括用于记录形成为所述凹凸图案的凸部的信息的记录元件; 和非磁性材料填充记录元件之间的凹部。记录元件的侧面在记录元件16突出于凹凸图案的一侧面对板状体的表面倾斜。记录元件的侧面相对于与该表面垂直的方向的倾斜角度小于90°和5°以上。

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