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1. 发明授权

US07115328B2 Master disk for transferring magnetic pattern and magnetic recording medium 失效
公开(公告)号：US07115328B2
公开(公告)日：2006-10-03
申请号：US10126109
申请日：2002-04-19
申请人： Yutaka Nakamura , Hitoshi Komoriya , Hiroyuki Suzuki , Takao Hirahara
发明人： Yutaka Nakamura , Hitoshi Komoriya , Hiroyuki Suzuki , Takao Hirahara
IPC分类号： G11B5/86
CPC分类号： G11B5/865 , G11B5/82 , G11B23/0035
摘要： The present invention provides a master disk that can easily be brought into contact with and separated from a magnetic recording medium, and can accommodate foreign matters. This master disk transfers a predetermined magnetic pattern onto a magnetic recording medium that can record magnetic information. In the master disk, there are a magnetic pattern formation region in which the magnetic pattern is formed, and a blank region in which the magnetic pattern is not formed. A concave portion for accommodating foreign matters is formed in at least one part of the blank region.

2. 发明申请

US20050248866A1 Magnetic pattern transferring method for performing magnetic pattern transfer while correcting a magneticallly different part 审中-公开
标题翻译：用于在校正磁性不同部分的同时进行磁图案转印的磁图形转印方法
公开(公告)号：US20050248866A1
公开(公告)日：2005-11-10
申请号：US11178682
申请日：2005-07-11
申请人： Yutaka Nakamura , Hitoshi Komoriya , Hiroyuki Suzuki , Takao Hirahara
发明人： Yutaka Nakamura , Hitoshi Komoriya , Hiroyuki Suzuki , Takao Hirahara
IPC分类号： G11B5/00 , G11B5/012 , G11B5/82 , G11B5/86
CPC分类号： B82Y10/00 , G11B5/012 , G11B5/743 , G11B5/82 , G11B5/865 , G11B2005/001
摘要： A magnetic-pattern transferring method is a method for transferring a magnetic pattern to a magnetic recording medium. The method comprises steps as follows. In a master transferring step, a magnetic field is applied to a master placed close to the magnetic recording medium. The magnetic field excites a magnetic layer having a pattern patterned on the master according to the magnetic pattern. Thereby, the pattern of the magnetic layer is transferred to the magnetic recording medium. In a pattern-difference measuring step, a magnetic condition of the magnetic recording medium is measured so as to measure a magnetically different part between the pattern transferred to the magnetic recording medium and the magnetic pattern. In a magnetic transferring step, a pattern transfer is performed to the magnetic recording medium by using the master while applying the magnetic field so as to correct a magnetic condition of the magnetically different part.
摘要翻译：磁图案转印方法是将磁图案转印到磁记录介质的方法。该方法包括以下步骤。在主转印步骤中，将磁场施加到靠近磁记录介质放置的母版。磁场根据磁图案激发具有图案化图案的图案的磁性层。由此，磁性层的图案被转印到磁记录介质。在图案差分测量步骤中，测量磁记录介质的磁状态，以测量转印到磁记录介质的图案与磁图案之间的磁性不同部分。在磁转移步骤中，通过在施加磁场的同时使用母版对磁记录介质执行图案转印，以便校正磁不同部分的磁条件。

3. 发明授权

US06950254B2 Magnetic transfer apparatus for establishing magnetic pattern on magnetic disk 失效
标题翻译：用于在磁盘上建立磁性图案的磁转移装置
公开(公告)号：US06950254B2
公开(公告)日：2005-09-27
申请号：US10633758
申请日：2003-08-04
申请人： Hiroyuki Suzuki , Hitoshi Komoriya , Yutaka Nakamura , Takao Hirahara
发明人： Hiroyuki Suzuki , Hitoshi Komoriya , Yutaka Nakamura , Takao Hirahara
IPC分类号： G11B5/012 , G11B5/596 , G11B5/86
CPC分类号： G11B5/865 , G11B5/012 , G11B5/59633
摘要： A magnetic transfer apparatus is utilized to establish magnetization on the surface of a magnetic disk. A support mechanism supports the magnetic disk in the magnetic transfer apparatus. A magnetizing mechanism is designed to get opposed to the magnetic disk held by the support mechanism. The magnetizing mechanism applies a magnetic field of variable intensity in response to a change of position in the radial direction of the magnetic disk. The magnetic transfer apparatus enables establishment of a magnetic field of an appropriate intensity at any positions in the radial direction of the magnetic disk. Magnetization of a constant intensity can be established over the surface of the magnetic disk irrespective of a position in the radial direction of the magnetic disk. The magnetic transfer apparatus alone serves to establish a servo pattern of a clear magnetization on the magnetic disk.
摘要翻译：利用磁转移装置在磁盘的表面上形成磁化。支撑机构支撑磁性传送装置中的磁盘。磁化机构被设计为与由支撑机构保持的磁盘相对。磁化机构响应于磁盘径向位置的变化而施加可变强度的磁场。磁转移装置能够在磁盘的径向的任意位置建立适当强度的磁场。可以在磁盘的表面上建立恒定强度的磁化，而不管磁盘的径向方向如何。单独的磁转移装置用于在磁盘上建立清晰磁化的伺服模式。

4. 发明申请

US20050185311A1 Magnetic pattern transfer method 失效
标题翻译：磁图转移法
公开(公告)号：US20050185311A1
公开(公告)日：2005-08-25
申请号：US11113137
申请日：2005-04-25
申请人： Yutaka Nakamura , Hitoshi Komoriya , Hiroyuki Suzuki , Takao Hirahara , Arata Ejiri
发明人： Yutaka Nakamura , Hitoshi Komoriya , Hiroyuki Suzuki , Takao Hirahara , Arata Ejiri
IPC分类号： G11B5/82 , G11B5/86
CPC分类号： G11B5/865 , G11B5/825 , G11B5/86
摘要： A magnetic pattern transfer method is disclosed. A magnetic pattern transfer master having a plurality of magnetic portions preformed with predetermined magnetic patterns is brought in proximity to a magnetic recording medium having a magnetic film to record the magnetic information, and a magnetic field is applied from an external source thereby to transfer the magnetic patterns to the magnetic recording medium. In order to improve the closeness between the magnetic film of the magnetic recording medium and the magnetic portions of the magnetic pattern transfer master, the magnetic patterns are transferred to the magnetic film of the magnetic recording medium during the process of fabricating the magnetic recording medium. Also, using a magnetic pattern transfer master with the width of each pattern groove of the magnetic patterns smaller than the width of a corresponding pattern protrusion, the relative position of the magnetic pattern transfer master is displaced, while at the same time transferring the magnetic patterns to the magnetic film of the magnetic recording medium a plurality of times.
摘要翻译：公开了磁图案转印方法。将具有预定磁性图案预先形成的多个磁性部分的磁性图案转印母版带到具有磁性薄膜的磁记录介质附近以记录磁信息，并且从外部源施加磁场，从而转移磁图案到磁记录介质。为了提高磁记录介质的磁性膜与磁性图案转印母版的磁性部分之间的接近度，在制造磁记录介质的过程中将磁图案转印到磁记录介质的磁膜上。此外，使用具有小于相应图案突起的宽度的磁图案的每个图案槽的宽度的磁性图案转印母版，磁图案转印母版的相对位置被移位，同时转印磁图案磁记录介质的磁性膜多次。

5. 发明授权

US06977785B2 Magnetic pattern transferring method for performing a magnetic pattern transfer while correcting a magnetically different part 失效
标题翻译：用于在校正磁性不同部分的同时进行磁图案转印的磁图形转印方法
公开(公告)号：US06977785B2
公开(公告)日：2005-12-20
申请号：US10107688
申请日：2002-03-27
申请人： Yutaka Nakamura , Hitoshi Komoriya , Hiroyuki Suzuki , Takao Hirahara
发明人： Yutaka Nakamura , Hitoshi Komoriya , Hiroyuki Suzuki , Takao Hirahara
IPC分类号： G11B5/00 , G11B5/012 , G11B5/82 , G11B5/86
CPC分类号： B82Y10/00 , G11B5/012 , G11B5/743 , G11B5/82 , G11B5/865 , G11B2005/001
摘要： A magnetic-pattern transferring method is a method for transferring a magnetic pattern to a magnetic recording medium. The method comprises steps as follows. In a master transferring step, a magnetic field is applied to a master placed close to the magnetic recording medium. The magnetic field excites a magnetic layer having a pattern patterned on the master according to the magnetic pattern. Thereby, the pattern of the magnetic layer is transferred to the magnetic recording medium. In a pattern-difference measuring step, a magnetic condition of the magnetic recording medium is measured so as to measure a magnetically different part between the pattern transferred to the magnetic recording medium and the magnetic pattern. In a magnetic transferring step, a pattern transfer is performed to the magnetic recording medium by using the master while applying the magnetic field so as to correct a magnetic condition of the magnetically different part.
摘要翻译：磁图案转印方法是将磁图案转印到磁记录介质的方法。该方法包括以下步骤。在主转印步骤中，将磁场施加到靠近磁记录介质放置的母版。磁场根据磁图案激发具有图案化图案的图案的磁性层。由此，磁性层的图案被转印到磁记录介质。在图案差分测量步骤中，测量磁记录介质的磁状态，以测量转印到磁记录介质的图案与磁图案之间的磁性不同部分。在磁转移步骤中，通过在施加磁场的同时使用母版对磁记录介质执行图案转印，以便校正磁不同部分的磁条件。

6. 发明授权

US07110201B2 Master medium for magnetic transfer and magnetic disk and magnetic disk drive 失效
标题翻译：用于磁传输和磁盘和磁盘驱动器的主介质
公开(公告)号：US07110201B2
公开(公告)日：2006-09-19
申请号：US10870823
申请日：2004-06-17
申请人： Hiroyuki Suzuki , Hitoshi Komoriya , Yutaka Nakamura
发明人： Hiroyuki Suzuki , Hitoshi Komoriya , Yutaka Nakamura
IPC分类号： G11B5/09 , G11B5/86
CPC分类号： G11B5/865 , B82Y10/00 , G11B5/5526 , G11B5/59633 , G11B5/743
摘要： A master medium is utilized in a magnetic transfer apparatus. The master medium is superposed on a blank magnetic medium. A predetermined magnetic field is then applied to the master medium. The magnetic flux leaks from the master medium between adjacent magnetic pieces on the master medium. The leaked magnetic flux acts on the magnetic medium. The magnetization is accordingly established on the surface of the magnetic medium. Here, spaces can be reduced between the adjacent magnetic pieces on the master medium. Magnetization of a sufficient intensity can reliably be established on the magnetic medium.
摘要翻译：在磁性传送装置中使用主介质。主介质叠加在空白磁介质上。然后将预定的磁场施加到主介质。磁通量从主介质在主介质上的相邻磁片之间泄漏。泄漏的磁通量作用在磁介质上。相应地在磁性介质的表面上形成磁化。这里，可以在主介质上的相邻磁性片之间减少空间。在磁介质上可以可靠地确定足够强度的磁化。

7. 发明授权

US07099094B2 Magnetic pattern transferring method for performing a magnetic pattern transfer 有权
标题翻译：用于执行磁图案转印的磁图转印方法
公开(公告)号：US07099094B2
公开(公告)日：2006-08-29
申请号：US11178642
申请日：2005-07-11
申请人： Yutaka Nakamura , Hitoshi Komoriya , Hiroyuki Suzuki , Takao Hirahara
发明人： Yutaka Nakamura , Hitoshi Komoriya , Hiroyuki Suzuki , Takao Hirahara
IPC分类号： G11B5/86
CPC分类号： B82Y10/00 , G11B5/012 , G11B5/743 , G11B5/82 , G11B5/865 , G11B2005/001
摘要： A method for manufacturing a master used for a magnetic transfer, the method including the following steps: A first-master manufacturing step of manufacturing a first master including a predetermined magnetic pattern based on magnetic information; a magnetic-pattern transferring step of transferring the magnetic pattern to a magnetic recording medium by using the first master; an error confirming step of confirming an amount of a transfer error between the magnetic pattern transferred to the magnetic recording medium and the predetermined magnetic pattern; and a second-master manufacturing step of manufacturing a second master as an authentic master based on a correction magnetic pattern so formed as to offset the amount of the transfer error.
摘要翻译：一种用于制造用于磁转移的母盘的方法，所述方法包括以下步骤：第一主制造步骤，其基于磁信息制造包括预定磁图案的第一母盘; 磁图案转印步骤，通过使用第一母版将磁图案转印到磁记录介质; 错误确认步骤，确认转印到磁记录介质的磁图案与预定磁图之间的转印误差量; 以及第二主制造步骤，其基于形成为抵消所述传送误差的量的校正磁图案来制造作为可靠主机的第二主机。

8. 发明授权

US07012775B2 Writer for head positioning information over recording medium 失效
公开(公告)号：US07012775B2
公开(公告)日：2006-03-14
申请号：US09972065
申请日：2001-10-05
申请人： Hiroyuki Suzuki , Hitoshi Komoriya , Yutaka Nakamura , Takao Hirahara
发明人： Hiroyuki Suzuki , Hitoshi Komoriya , Yutaka Nakamura , Takao Hirahara
IPC分类号： G11B21/02 , G11B15/12 , G11B15/46 , G11B5/29
CPC分类号： G11B5/5582 , G11B5/59633
摘要： A writer for head positioning information, or a so-called servo track writer allows the read gap to follow a track which has been established on a recording medium or disk. As long as the read gap keeps following the existing track, the write gap is allowed to move along a path extending in parallel with the existing track. The write gap is utilized to write head positioning or servo information into the recording medium along the path. Even when the recording medium suffers from vibration or the like, the read gap can follow the track. The head positioning information can thus be written into the recording medium so as to establish a head positioning pattern at a higher positional accuracy.

9. 发明授权

US07362524B2 Magnetic pattern transfer method 失效
标题翻译：磁图转移法
公开(公告)号：US07362524B2
公开(公告)日：2008-04-22
申请号：US11113137
申请日：2005-04-25
申请人： Yutaka Nakamura , Hitoshi Komoriya , Hiroyuki Suzuki , Takao Hirahara , Arata Ejiri
发明人： Yutaka Nakamura , Hitoshi Komoriya , Hiroyuki Suzuki , Takao Hirahara , Arata Ejiri
IPC分类号： G11B5/86
CPC分类号： G11B5/865 , G11B5/825 , G11B5/86
摘要： A magnetic pattern transfer method is disclosed. A magnetic pattern transfer master having a plurality of magnetic portions preformed with predetermined magnetic patterns is brought in proximity to a magnetic recording medium having a magnetic film to record the magnetic information, and a magnetic field is applied from an external source thereby to transfer the magnetic patterns to the magnetic recording medium. In order to improve the closeness between the magnetic film of the magnetic recording medium and the magnetic portions of the magnetic pattern transfer master, the magnetic patterns are transferred to the magnetic film of the magnetic recording medium during the process of fabricating the magnetic recording medium. Also, using a magnetic pattern transfer master with the width of each pattern groove of the magnetic patterns smaller than the width of a corresponding pattern protrusion, the relative position of the magnetic pattern transfer master is displaced, while at the same time transferring the magnetic patterns to the magnetic film of the magnetic recording medium a plurality of times.
摘要翻译：公开了磁图案转印方法。将具有预定磁性图案预先形成的多个磁性部分的磁性图案转印母版带到具有磁性薄膜的磁记录介质附近以记录磁信息，并且从外部源施加磁场，从而转移磁图案到磁记录介质。为了提高磁记录介质的磁性膜与磁性图案转印母版的磁性部分之间的接近度，在制造磁记录介质的过程中将磁图案转印到磁记录介质的磁膜上。此外，使用具有小于相应图案突起的宽度的磁图案的每个图案槽的宽度的磁性图案转印母版，磁图案转印母版的相对位置被移位，同时转印磁图案磁记录介质的磁性膜多次。

10. 发明申请

US20050248865A1 Magnetic pattern transferring method for performing a magnetic pattern transfer while correcting a magnetically different part 有权
公开(公告)号：US20050248865A1
公开(公告)日：2005-11-10
申请号：US11178642
申请日：2005-07-11
申请人： Yutaka Nakamura , Hitoshi Komoriya , Hiroyuki Suzuki , Takao Hirahara
发明人： Yutaka Nakamura , Hitoshi Komoriya , Hiroyuki Suzuki , Takao Hirahara
IPC分类号： G11B5/00 , G11B5/012 , G11B5/82 , G11B5/86
CPC分类号： B82Y10/00 , G11B5/012 , G11B5/743 , G11B5/82 , G11B5/865 , G11B2005/001
摘要： A magnetic-pattern transferring method is a method for transferring a magnetic pattern to a magnetic recording medium. The method comprises steps as follows. In a master transferring step, a magnetic field is applied to a master placed close to the magnetic recording medium. The magnetic field excites a magnetic layer having a pattern patterned on the master according to the magnetic pattern. Thereby, the pattern of the magnetic layer is transferred to the magnetic recording medium. In a pattern-difference measuring step, a magnetic condition of the magnetic recording medium is measured so as to measure a magnetically different part between the pattern transferred to the magnetic recording medium and the magnetic pattern. In a magnetic transferring step, a pattern transfer is performed to the magnetic recording medium by using the master while applying the magnetic field so as to correct a magnetic condition of the magnetically different part.

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