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1. 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。

2. 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。

3. 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。

4. 发明授权

US07541106B2 Magnetic recording medium and magnetic recording/reproducing device 失效
标题翻译：磁记录介质和磁记录/再现装置
公开(公告)号：US07541106B2
公开(公告)日：2009-06-02
申请号：US11334343
申请日：2006-01-19
申请人： Shuichi Okawa , Mitsuru Takai , Kazuya Shimakawa
发明人： Shuichi Okawa , Mitsuru Takai , Kazuya Shimakawa
IPC分类号： G11B5/66
CPC分类号： G11B5/855
摘要： A magnetic recording medium is provided that includes a recording layer having recording elements formed as convex portions and a filling material filled within the concave portions between the recording elements. The medium is highly reliable and has a surface less liable to damages when a magnetic head contacts the surface, so that good recording/reproducing characteristics are ensured. The magnetic recording medium includes a recording layer formed in a predetermined concavo-convex pattern over a substrate and having recording elements formed as convex portions in the concavo-convex pattern and a filling material filled within the concave portions between the recording elements. The filling material is substantially composed of Si and O, and the ratio of the number of O atoms to the number of Si atoms is equal to or more than 1.5 and less than 2.
摘要翻译：提供了一种磁记录介质，其包括具有形成为凸部的记录元件和填充在记录元件之间的凹部内的填充材料的记录层。介质是高度可靠的，并且当磁头接触表面时表面较不易损坏，从而确保良好的记录/再现特性。磁记录介质包括在基板上形成为预定的凹凸图案的记录层，并且具有形成为凹凸图案中的凸部的记录元件和填充在记录元件之间的凹部内的填充材料。填充材料基本上由Si和O组成，O原子数与Si原子数之比等于或大于1.5且小于2。

5. 发明申请

US20060188751A1 Magnetic recording medium and magnetic recording/reproducing device 失效
公开(公告)号：US20060188751A1
公开(公告)日：2006-08-24
申请号：US11334343
申请日：2006-01-19
申请人： Shuichi Okawa , Mitsuru Takai , Kazuya Shimakawa
发明人： Shuichi Okawa , Mitsuru Takai , Kazuya Shimakawa
IPC分类号： G11B5/64
CPC分类号： G11B5/855
摘要： A magnetic recording medium is provided that includes a recording layer having recording elements formed as convex portions and a filling material filled within the concave portions between the recording elements. The medium is highly reliable and has a surface less liable to damages when a magnetic head contacts the surface, so that good recording/reproducing characteristics are ensured. The magnetic recording medium includes a recording layer formed in a predetermined concavo-convex pattern over a substrate and having recording elements formed as convex portions in the concavo-convex pattern and a filling material filled within the concave portions between the recording elements. The filling material is substantially composed of Si and O, and the ratio of the number of O atoms to the number of Si atoms is equal to or more than 1.5 and less than 2.

6. 发明申请

US20060132970A1 Magnetic recording/reproducing device, magnetic recording medium, and magnetic head 审中-公开
标题翻译：磁记录/再现装置，磁记录介质和磁头
公开(公告)号：US20060132970A1
公开(公告)日：2006-06-22
申请号：US11297362
申请日：2005-12-09
申请人： Mitsuru Takai , Katsumichi Tagami , Kazuya Shimakawa
发明人： Mitsuru Takai , Katsumichi Tagami , Kazuya Shimakawa
IPC分类号： G11B5/127
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/1278 , G11B5/743
摘要： A perpendicular magnetic recording/reproducing device that can suppress broadening of recording magnetic fields and that is capable of effective application of magnetic field to a recording target track is provided. The device includes a magnetic recording medium having a soft magnetic layer and a recording layer having a perpendicular magnetic anisotropy formed in this order over a substrate, and a magnetic head. The soft magnetic layer is formed with a concavo-convex pattern in which at least part of regions corresponding to tracks of the recording layer protrudes toward the recording layer, and convex portions are provided with the magnetic anisotropy in the circumferential direction of the tracks. The magnetic head includes a main pole for generating a recording magnetic field, and a return pole to which the magnetic field returns, the main pole and the return pole being arranged side by side in a track width direction.
摘要翻译：提供了一种能够抑制记录磁场扩大并且能够有效地将磁场施加到记录目标轨迹的垂直磁记录/再现装置。该装置包括具有软磁性层和在基板上依次形成垂直磁各向异性的记录层的磁记录介质和磁头。软磁性层形成为凹凸图案，其中对应于记录层的轨道的区域的至少一部分朝向记录层突出，并且凸部在轨道的圆周方向上具有磁各向异性。磁头包括用于产生记录磁场的主极和磁场返回的返回极，主极和返回极在轨道宽度方向上并排布置。

7. 发明申请

US20050243467A1 Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US20050243467A1
公开(公告)日：2005-11-03
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： G11B5/65 , G11B5/66 , G11B5/82 , G11B5/855 , G11B7/24 , G11B11/105
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。

8. 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。

9. 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。

10. 发明申请

US20050287397A1 Magnetic recording medium and manufacturing method thereof 失效
标题翻译：磁记录介质及其制造方法
公开(公告)号：US20050287397A1
公开(公告)日：2005-12-29
申请号：US11135441
申请日：2005-05-24
申请人： Yoshikazu Soeno , Mitsuru Takai , Katsumichi Tagami , Kazuya Shimakawa
发明人： Yoshikazu Soeno , Mitsuru Takai , Katsumichi Tagami , Kazuya Shimakawa
IPC分类号： B05D5/12 , G11B5/66 , G11B5/667 , G11B5/855
CPC分类号： G11B5/855
摘要： A magnetic recording medium is provided which has good recording/reproducing characteristics with a recording layer divided in a number of recording elements by a predetermined concavo-convex pattern, and a manufacturing method that enables efficient manufacture of such a magnetic recording medium. The magnetic recording medium includes a substrate, a soft magnetic layer formed over the substrate, a recording layer formed over the soft magnetic layer such as to have magnetic anisotropy in a direction perpendicular to surface, and being divided in a number of recording elements by a predetermined concavo-convex pattern, and a non-magnetic intermediate layer formed between the recording layer and the soft magnetic layer. The recording elements are formed to have a predetermined track shape in a data region.
摘要翻译：提供了具有良好的记录/再现特性的磁记录介质，其中记录层通过预定的凹凸图案分成多个记录元件，并且能够有效地制造这种磁记录介质的制造方法。磁记录介质包括基板，形成在基板上的软磁层，形成在软磁层上的记录层，以便在垂直于表面的方向上具有磁各向异性，并被多个记录元件划分为预定的凹凸图案和形成在记录层和软磁性层之间的非磁性中间层。记录元件形成为在数据区域中具有预定轨迹形状。

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