公开(公告)号：US07225528B2

公开(公告)日：2007-06-05

申请号：US10972325

申请日：2004-10-26

申请人： Takahiro Suwa ,  Mitsuru Takai ,  Kazuhiro Hattori ,  Shuichi Okawa

发明人： Takahiro Suwa ,  Mitsuru Takai ,  Kazuhiro Hattori ,  Shuichi Okawa

IPC分类号： G11B5/127 ,  H01R31/00

CPC分类号： G11B5/855 ,  Y10T29/49021 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A method for manufacturing a magnetic recording medium that has a sufficiently flat surface and includes a recording layer having a concavo-convex pattern that provides favorable accuracy of recording and reproduction. The manufacturing method includes the steps of: forming a lower non-magnetic film over a recording layer having a concavo-convex pattern; and forming an upper non-magnetic film on the lower non-magnetic film to fill concave portions 34 of the concavo-convex pattern. A bias power is applied to an object to be processed at least in the step of forming the upper non-magnetic film, and no bias power or a smaller bias power than the bias power applied in the step of forming the upper non-magnetic film is applied in the formation of the lower non-magnetic film.

摘要翻译： 一种制造具有足够平坦表面的磁记录介质的方法，包括具有提供良好记录和再现精度的凹凸图案的记录层。 该制造方法包括以下步骤：在具有凹凸图案的记录层上形成下部非磁性膜; 并且在下部非磁性膜上形成上部非磁性膜以填充凹凸图案的凹部34。 至少在形成上部非磁性膜的步骤中，对要处理的物体施加偏置功率，并且与形成上部非磁性膜的步骤中施加的偏置功率相比，没有偏置功率或较小的偏置功率 用于形成较低的非磁性膜。

公开(公告)号：US20070059562A1

公开(公告)日：2007-03-15

申请号：US11600725

申请日：2006-11-17

申请人： Kazuhiro Hattori ,  Mitsuru Takai ,  Takahiro Suwa

发明人： Kazuhiro Hattori ,  Mitsuru Takai ,  Takahiro Suwa

IPC分类号： G11B5/65

CPC分类号： G11B5/855 ,  B82Y10/00 ,  G11B5/74 ,  G11B5/743 ,  G11B5/851 ,  G11B11/10582

摘要： A magnetic recording medium which is prevented from deterioration of the partitioned recording elements is provided. A magnetic recording medium has partitioned recording elements, a non-magnetic body filled in grooves between the partitioned recording elements, and a barrier film formed between the partitioned recording elements and the non-magnetic body.

摘要翻译： 提供防止划分的记录元件劣化的磁记录介质。 磁记录介质具有划分的记录元件，填充在分隔的记录元件之间的凹槽中的非磁性体以及形成在分隔的记录元件和非磁性体之间的阻挡膜。

公开(公告)号：US07438982B2

公开(公告)日：2008-10-21

申请号：US11065142

申请日：2005-02-24

申请人： Takahiro Suwa ,  Mitsuru Takai ,  Kazuhiro Hattori ,  Shuichi Okawa ,  Mikiharu Hibi

发明人： Takahiro Suwa ,  Mitsuru Takai ,  Kazuhiro Hattori ,  Shuichi Okawa ,  Mikiharu Hibi

IPC分类号： G11B5/66 ,  G11B5/72

CPC分类号： G11B5/855 ,  Y10T428/24355 ,  Y10T428/24479 ,  Y10T428/24488 ,  Y10T428/24537 ,  Y10T428/2457

摘要： A magnetic recording medium includes at least a disk substrate, a magnetic recording layer formed with a predetermined concavo-convex pattern on the disk substrate, and a non-magnetic layer formed in concave portions of the concavo-convex pattern. Convex shapes made of a non-magnetic material are formed on the magnetic recording layer or the non-magnetic layer. Each convex shape is formed, for example, into a mountain-like shape whose upper surface width is made smaller than a width of each convex portion of the magnetic recording layer or a width of each concave portion where the non-magnetic layer 6 is formed.

摘要翻译： 磁记录介质至少包括盘基片，在盘基片上形成有预定的凹凸图案的磁记录层，以及形成在凹凸图案的凹部中的非磁性层。 在磁记录层或非磁性层上形成由非磁性材料制成的凸形。 每个凸形形成为例如其上表面宽度小于磁记录层的每个凸部的宽度或形成非磁性层6的每个凹部的宽度的山形形状 。

公开(公告)号：US20070231473A1

公开(公告)日：2007-10-04

申请号：US11785532

申请日：2007-04-18

申请人： Takahiro Suwa ,  Mitsuru Takai ,  Kazuhiro Hattori

发明人： Takahiro Suwa ,  Mitsuru Takai ,  Kazuhiro Hattori

IPC分类号： B05D5/12

CPC分类号： G11B5/855 ,  G11B5/8408

摘要： A magnetic recording medium and a method for manufacturing the same are provided, which provide high surface recording density and high recording/reading performance. The magnetic recording medium is manufactured by forming an intermediate protective layer between a continuous recording layer and a mask layer, dividing the continuous recording layer to form divided recording elements and removing the mask layer while leaving the intermediate protective layer on the top of the divided recording elements. Further, gaps between the divided recording elements are filled with a non-magnetic material while leaving the intermediate protective layer on the top of the divided recording elements.

摘要翻译： 提供一种提供高表面记录密度和高记录/读取性能的磁记录介质及其制造方法。 通过在连续记录层和掩模层之间形成中间保护层来制造磁记录介质，分割连续记录层以形成分割的记录元件，并且除去掩模层，同时将中间保护层留在分割记录的顶部 元素。 此外，分割的记录元件之间的间隙被非磁性材料填充，同时将中间保护层留在分割的记录元件的顶部。

公开(公告)号：US07247343B2

公开(公告)日：2007-07-24

申请号：US10924991

申请日：2004-08-25

申请人： Takahiro Suwa ,  Mitsuru Takai ,  Kazuhiro Hattori ,  Shuichi Okawa

发明人： Takahiro Suwa ,  Mitsuru Takai ,  Kazuhiro Hattori ,  Shuichi Okawa

IPC分类号： B05D5/12

CPC分类号： G11B5/855

摘要： A method for manufacturing a magnetic recording medium for efficiently and certainly manufacturing a magnetic recording medium. The magnetic recording medium has a recording layer formed to have predetermined concavo-convex pattern and an adequately flat surface. According to this method, a non-magnetic material is deposited on and filled into a member to be processed 10 by adjusting sputtering conditions in such a manner as to satisfy the following Eq I: 0.1≦V/V0−0.003×(L·d/t)+1.2 Eq I where V represents a deposition rate which is the film thickness per unit of time, V0 represent a deposition rate in a case that the bias power is zero, t represents the film thickness of the deposited non-magnetic material, L represents the width of a recording element, and d represents the depth of a recessed portion between the recording elements.

摘要翻译： 一种用于制造磁记录介质的方法，用于有效且肯定地制造磁记录介质。 磁记录介质具有形成为具有预定凹凸图案和足够平坦表面的记录层。 根据该方法，通过调整溅射条件，使非磁性材料沉积在待加工构件10中，并满足以下等式I：<？in-line-formula description =“In- 线公式“end =”lead“？> 0.1 <= V / V <0> -0.003x（Ld / t）+1.2 Eq I <？in-line-formula description =”In-line Formulas “end =”tail“？>其中V表示作为每单位时间的膜厚度的沉积速率，V 表示在偏置功率为零的情况下的沉积速率，t表示 沉积的非磁性材料的膜厚度L表示记录元件的宽度，d表示记录元件之间的凹部的深度。

公开(公告)号：US20070062450A1

公开(公告)日：2007-03-22

申请号：US11600728

申请日：2006-11-17

申请人： Kazuhiro Hattori ,  Mitsuru Takai ,  Takahiro Suwa

发明人： Kazuhiro Hattori ,  Mitsuru Takai ,  Takahiro Suwa

IPC分类号： C23F1/00 ,  C23C16/00

CPC分类号： G11B5/855 ,  B82Y10/00 ,  G11B5/74 ,  G11B5/743 ,  G11B5/851 ,  G11B11/10582

摘要： A production apparatus, which enable the efficient production of a discrete type magnetic recording medium, while reliably preventing any deterioration of the partitioned recording elements. The magnetic recording medium production apparatus includes: recording layer processing device, which by forming a plurality of grooves, with a spacing therebetween in a planar direction, in an intermediate product of a magnetic recording medium comprising a continuous recording layer, partitions the continuous recording layer into a plurality of partitioned recording elements; non-magnetic body filling device for filling the grooves between the partitioned recording elements with a non-magnetic body; protective layer formation device for forming a protective layer on the partitioned recording elements and the non-magnetic body; and vacuum retention device which houses the recording layer processing device, the non-magnetic body filling device, and the protective layer formation device, and maintains the environment surrounding the intermediate product in a state of vacuum.

摘要翻译： 一种制造装置，其能够有效地生产分立型磁记录介质，同时可靠地防止分隔的记录元件的任何劣化。 磁记录介质制造装置包括：记录层处理装置，其在包括连续记录层的磁记录介质的中间产物中，在平面方向上以间隔形成多个凹槽，分隔连续记录层 分成多个划分的记录元件; 非磁性体填充装置，用于用非磁性体填充分隔的记录元件之间的凹槽; 用于在分隔的记录元件和非磁性体上形成保护层的保护层形成装置; 以及容纳记录层处理装置，非磁性体填充装置和保护层形成装置的真空保持装置，并且在真空状态下保持围绕中间产品的环境。

公开(公告)号：US20070031706A1

公开(公告)日：2007-02-08

申请号：US10555670

申请日：2004-09-09

申请人： Shuichi Okawa ,  Kazuhiro Hattori ,  Takahiro Suwa ,  Mitsuru Takai

发明人： Shuichi Okawa ,  Kazuhiro Hattori ,  Takahiro Suwa ,  Mitsuru Takai

IPC分类号： G11B5/65 ,  B05D5/12

CPC分类号： G11B5/855

摘要： A method for manufacturing a magnetic recording medium, which enables efficient and ensured manufacture of a magnetic recording medium having a recording layer formed in a concavo-convex pattern and a satisfactorily flat surface, and a magnetic recording medium are provided. According to the method for manufacturing a magnetic recording medium, a material whose state is selectable between a flowing state and a cured state is used as a non-magnetic material 36. After the non-magnetic material 36 is formed in a flowing state on a surface of an object to be processed 10 including a recording layer 32 formed in a concavo-convex pattern over a glass substrate 12, then the non-magnetic material 36 is cured.

摘要翻译： 提供了一种制造磁记录介质的方法，其能够有效且确保制造具有形成为凹凸图案和令人满意的平坦表面的记录层的磁记录介质和磁记录介质。 根据制造磁记录介质的方法，将其状态在流动状态和固化状态之间可选择的材料用作非磁性材料36.在非磁性材料36以流动状态形成在 包括在玻璃基板12上形成为凹凸图案的记录层32的待处理物体10的表面，然后使非磁性材料36固化。

公开(公告)号：US20050048198A1

公开(公告)日：2005-03-03

申请号：US10924991

申请日：2004-08-25

申请人： Takahiro Suwa ,  Mitsuru Takai ,  Kazuhiro Hattori ,  Shuichi Okawa

发明人： Takahiro Suwa ,  Mitsuru Takai ,  Kazuhiro Hattori ,  Shuichi Okawa

IPC分类号： G11B5/65 ,  G11B5/84 ,  G11B5/855 ,  B05D5/12

CPC分类号： G11B5/855

摘要： A method for manufacturing a magnetic recording medium for efficiently and certainly manufacturing a magnetic recording medium. The magnetic recording medium has a recording layer formed to have predetermined concavo-convex pattern and an adequately flat surface. According to this method, a non-magnetic material is deposited on and filled into a member to be processed 10 by adjusting sputtering conditions in such a manner as to satisfy the following equation (I): 0.1≦V/V0≦−0.003×(L·d/t)+1.2  (I) where V represents a deposition rate which is the film thickness per unit of time, V0 represent a deposition rate in a case that the bias power is zero, t represents the film thickness of the deposited non-magnetic material, L represents the width of a recording element, and d represents the depth of a recessed portion between the recording elements.

摘要翻译： 一种用于制造磁记录介质的方法，用于有效且肯定地制造磁记录介质。 磁记录介质具有形成为具有预定凹凸图案和足够平坦表面的记录层。 根据该方法，通过以满足下述式（I）的方式调整溅射条件，将非磁性材料沉积并填充到待加工构件10中：0.1 <= V / V0 <= 0.003 x（Ld / t）+1.2（I）其中V表示作为每单位时间的膜厚度的沉积速率，V0表示在偏置功率为零的情况下的沉积速率，t表示沉积的膜厚度 非磁性材料，L表示记录元件的宽度，d表示记录元件之间的凹部的深度。

公开(公告)号：US07538041B2

公开(公告)日：2009-05-26

申请号：US11206874

申请日：2005-08-19

申请人： Mitsuru Takai ,  Kazuhiro Hattori ,  Takahiro Suwa ,  Shuichi Okawa

发明人： Mitsuru Takai ,  Kazuhiro Hattori ,  Takahiro Suwa ,  Shuichi Okawa

IPC分类号： H01L21/302

CPC分类号： G11B5/855

摘要： A magnetic recording medium is provided in which a magnetic recording layer 5 is provided in a predetermined concavo-convex pattern on a substrate 1A, a concave portion in a concavo-convex pattern is filled with a non-magnetic material, and a non-magnetic layer 16 formed of the non-magnetic material positioned at the bottom surface of the concave portion in the non-magnetic materials is formed on a convex portion of the concavo-convex pattern while surface of the convex portion and the concave portion is substantially flattened, and a thickness of the non-magnetic layer 16 is 1 nm or less.

摘要翻译： 提供一种磁记录介质，其中在基板1A上以预定的凹凸图案设置磁记录层5，凹凸图案的凹部填充有非磁性材料，并且非磁性 形成在非磁性材料的凹部的底面的非磁性材料形成的层16形成在凹凸图案的凸部上，同时凸部和凹部的表面基本平坦化， 非磁性层16的厚度为1nm以下。

公开(公告)号：US07223439B2

公开(公告)日：2007-05-29

申请号：US10805434

申请日：2004-03-22

申请人： Takahiro Suwa ,  Mitsuru Takai ,  Kazuhiro Hattori

发明人： Takahiro Suwa ,  Mitsuru Takai ,  Kazuhiro Hattori

IPC分类号： B05D5/12

CPC分类号： G11B5/855 ,  G11B5/8408

摘要： A magnetic recording medium and a method for manufacturing the same are provided, which provide high surface recording density and high recording/reading performance. The magnetic recording medium is manufactured by forming an intermediate protective layer between a continuous recording layer and a first mask layer, dividing the continuous recording layer to form divided recording elements, and then removing the first mask layer while leaving the intermediate protective layer on the top of the divided recording elements. Further, gaps between the divided recording elements are filled with a non-magnetic material before removing the first mask layer.

摘要翻译： 提供一种提供高表面记录密度和高记录/读取性能的磁记录介质及其制造方法。 通过在连续记录层和第一掩模层之间形成中间保护层，分割连续记录层以形成分割的记录元件，然后在将中间保护层留在顶部的同时除去第一掩模层来制造磁记录介质 的分割记录元素。 此外，在去除第一掩模层之前，用非磁性材料填充划分的记录元件之间的间隙。