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11. 发明授权

US07787200B2 Disk-device correcting system, information managing device, master-disk producing device, and master-disk producing method 有权
标题翻译：磁盘装置校正系统，信息管理装置，母盘制造装置以及主盘制造方法
公开(公告)号：US07787200B2
公开(公告)日：2010-08-31
申请号：US11440730
申请日：2006-05-25
申请人： Hiroyuki Suzuki , Tomoyoshi Yamada , Masanori Fukushi , Kazuhiko Takaishi , Tsugito Maruyama , Sumio Kuroda
发明人： Hiroyuki Suzuki , Tomoyoshi Yamada , Masanori Fukushi , Kazuhiko Takaishi , Tsugito Maruyama , Sumio Kuroda
IPC分类号： G11B5/86
CPC分类号： G11B5/59633 , G11B5/86
摘要： A master-disk producing device produces a master disk with master-disk identification information added. A disk producing device produces a first disk with the master-disk identification information added, using the master disk with the master-disk identification information added. A first disk device obtains, after the first disk with the master-disk identification information added is mounted, first correction information from a correction-information storing device based on the master-disk identification information of the first disk.
摘要翻译：主盘生成装置生成添加有主盘识别信息的主盘。磁盘产生装置使用添加了主盘识别信息的主盘产生添加有主盘识别信息的第一盘。第一磁盘装置在安装了添加了主盘识别信息的第一磁盘之后，根据第一磁盘的主盘识别信息，获得来自校正信息存储装置的第一校正信息。

12. 发明授权

US07460322B2 Magnetic transferring apparatus 失效
标题翻译：磁转移装置
公开(公告)号：US07460322B2
公开(公告)日：2008-12-02
申请号：US11390693
申请日：2006-03-28
申请人： Hiroyuki Suzuki , Sumio Kuroda , Yutaka Nakamura
发明人： Hiroyuki Suzuki , Sumio Kuroda , Yutaka Nakamura
IPC分类号： G11B5/86
CPC分类号： G11B5/865
摘要： A magnetic transferring apparatus allows attachment of a first magnet to a first holder. A second magnet is attached to a second holder. The first and second holders are located in a space between first and second magnets. A magnetic disk and a master member are located in a space between the first and second holders. The magnetic attraction is generated between the first and second magnets. The magnetic attraction serves to bring the first and second holders closer to each other, so that magnetic pieces of the master member is brought in a close contact with the magnetic disk between the first and second holders. The magnetic flux runs between the first and second based on the contact between the magnetic pieces and the magnetic disk. A servo pattern can in this manner be established in the magnetic disk.
摘要翻译：磁转移装置允许将第一磁体附接到第一保持器。第二磁体连接到第二支架。第一和第二保持器位于第一和第二磁体之间的空间中。磁盘和主构件位于第一和第二保持器之间的空间中。在第一和第二磁体之间产生磁吸引力。磁吸引用于使第一和第二保持器彼此靠近，使得主构件的磁片与第一和第二保持器之间的磁盘紧密接触。基于磁片和磁盘之间的接触，磁通量在第一和第二之间延伸。这样可以在磁盘中建立伺服模式。

13. 发明申请

US20080062548A1 MASTER RECORDING MEDIUM, MAGNETIC TRANSFER METHOD, MAGNETIC TRANSFER APPARATUS, AND MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING AND REPRODUCING APPARATUS THEREBY MADE 审中-公开
标题翻译：主记录介质，磁性传输方法，磁性传输装置和磁记录介质以及磁记录和再现装置
公开(公告)号：US20080062548A1
公开(公告)日：2008-03-13
申请号：US11851441
申请日：2007-09-07
申请人： Naoto Fujiwara , Kenji Sugiyama , Kazuhiro Niitsuma , Tadashi Yasunaga , Tsugito Maruyama , Sumio Kuroda , Yutaka Nakamura , Hiroyuki Suzuki
发明人： Naoto Fujiwara , Kenji Sugiyama , Kazuhiro Niitsuma , Tadashi Yasunaga , Tsugito Maruyama , Sumio Kuroda , Yutaka Nakamura , Hiroyuki Suzuki
IPC分类号： G11B5/86 , G11B5/82
CPC分类号： G11B5/865
摘要： The present invention provides a master recording medium, a magnetic transfer method, a magnetic transfer apparatus, and a magnetic recording medium and a magnetic recording and reproducing apparatus thereby made, which are capable of obtaining a good regenerative signal with few even harmonic components such as the second-order harmonic components on reproducing the information transferred to the magnetic recording medium in the case of recording the information on the magnetic recording medium having a magnetic layer composed of the perpendicular magnetization film by the magnetic transfer.
摘要翻译：本发明提供了一种能够获得良好再生信号的主记录介质，磁转移方法，磁转移装置和磁记录介质以及由此制成的磁记录和再现装置，其具有很少的偶次谐波分量，例如在通过磁转移将由垂直磁化膜组成的磁性层记录在磁记录介质上的情况下，再现传送到磁记录介质的信息的二次谐波分量。

14. 发明申请

US20070223127A1 Eccentricity correction method, signal processing circuit, magnetic storage apparatus and perpendicular magnetic recording medium 失效
标题翻译：偏心校正方法，信号处理电路，磁存储装置和垂直磁记录介质
公开(公告)号：US20070223127A1
公开(公告)日：2007-09-27
申请号：US11474156
申请日：2006-06-23
申请人： Tsugito Maruyama , Sumio Kuroda
发明人： Tsugito Maruyama , Sumio Kuroda
IPC分类号： G11B5/09 , G11B5/596
CPC分类号： G11B20/10009 , G11B5/59627 , G11B20/1217 , G11B2220/2516
摘要： A magnetic storage apparatus has a reproducing head to reproduce information from a perpendicular magnetic recording medium that is recorded with servo information, eccentricity correction data and read/write data. The apparatus further has a filter part to filter a reproduced output of the reproducing head by filtering the servo information which has a differentiated waveform by a non-differentiating characteristic and by filtering the eccentricity correction data and the read/write data which have rectangular waveforms by a differentiating characteristic, a demodulating part to demodulate the servo information, the eccentricity correction data and the read/write data that are filtered by the filter part, and a servo system to carry out a control process including an eccentricity control based on the servo information and the eccentricity correction data that are demodulated.
摘要翻译：磁存储装置具有用于从记录有伺服信息，偏心校正数据和读/写数据的垂直磁记录介质再现信息的再现头。该装置还具有滤波器部分，以通过对具有差分波形的非微分特性进行滤波的伺服信息，并通过滤波具有矩形波形的偏心校正数据和读/写数据来过滤再现头的再现输出微分特性，用于解调伺服信息的解调部分，由滤波部分滤波的偏心校正数据和读/写数据;以及伺服系统，用于执行包括基于伺服信息的偏心控制的控制处理以及被解调的偏心校正数据。

15. 发明授权

US07203023B2 Magnetic recording unit and magnetic recording medium 失效
标题翻译：磁记录单元和磁记录介质
公开(公告)号：US07203023B2
公开(公告)日：2007-04-10
申请号：US10413660
申请日：2003-04-15
申请人： Sumio Kuroda , Kazuyuki Ozaki
发明人： Sumio Kuroda , Kazuyuki Ozaki
IPC分类号： G11B5/596
CPC分类号： G11B5/59605 , G11B5/59688
摘要： The present invention provides a magnetic recording unit, including: a magnetic head; a magnetic recording medium having a servo pattern for adjusting a position of the magnetic head; a frequency detecting element for detecting a frequency in the servo pattern on a track corresponding to the position in a radial direction of the magnetic recording medium, on the basis of a reproduction signal obtained by reading the servo pattern with the magnetic head; a storage element for storing in advance information on predetermined frequencies corresponding to the positions of tracks of the magnetic recording medium; a tracking element for comparing the frequency detected on the track by the frequency detection element and the information on the frequency corresponding to the same track, the information being stored in the storage element, and for generating a signal for adjusting the position of the magnetic head, the signal being generated on the basis of a difference between the frequencies.
摘要翻译：本发明提供一种磁记录单元，包括：磁头; 具有用于调节磁头位置的伺服图案的磁记录介质; 频率检测元件，用于根据通过用磁头读取伺服模式获得的再现信号来检测与磁记录介质的径向方向上的位置对应的轨道上的伺服模式中的频率; 存储元件，用于预先存储与磁记录介质的轨迹位置对应的预定频率的信息; 用于将由频率检测元件在轨道上检测到的频率与对应于同一轨道的频率的信息进行比较的跟踪元件，存储在存储元件中的信息，以及用于产生用于调整磁头位置的信号基于频率之间的差异产生信号。

16. 发明申请

US20050128617A1 Information recording medium 审中-公开
标题翻译：信息记录介质
公开(公告)号：US20050128617A1
公开(公告)日：2005-06-16
申请号：US11049208
申请日：2005-02-03
申请人： Sumio Kuroda , Kazuyuki Ozaki
发明人： Sumio Kuroda , Kazuyuki Ozaki
IPC分类号： G11B5/09 , G11B5/55 , G11B5/596 , G11B5/82 , G11B5/86 , G11B15/12 , G11B20/12
CPC分类号： G11B5/865 , G11B5/09 , G11B5/5526 , G11B5/59633 , G11B20/1217 , G11B2020/1282 , G11B2020/1284 , G11B2220/2516
摘要： An information recording medium characterized by comprising a plurality of kinds or a plurality of sets of servo information recorded as magnetic information and used for detecting a position of the information recording medium relative to a magnetic head. Even if some sets of servo information become defective, the information recording medium is not determined as a defective, and user data can be recorded and reproduced on the information recording medium by utilizing servo information of another set which is determined to be normal.
摘要翻译：一种信息记录介质，其特征在于包括记录为磁信息的多种或多组伺服信息，用于检测信息记录介质相对于磁头的位置。即使某些伺服信息集合变得有缺陷，信息记录介质也不被确定为缺陷，并且可以通过利用被确定为正常的另一组的伺服信息在信息记录介质上记录和再现用户数据。

17. 发明授权

US5747136A High-density magneto-optic disk and method of manufacturing the same 失效
标题翻译：高密度磁光盘及其制造方法
公开(公告)号：US5747136A
公开(公告)日：1998-05-05
申请号：US309966
申请日：1994-09-20
申请人： Keiji Shono , Yasunobu Hashimoto , Sumio Kuroda , Ken Tamanoi
发明人： Keiji Shono , Yasunobu Hashimoto , Sumio Kuroda , Ken Tamanoi
IPC分类号： G11B11/10 , G11B11/105 , G11B5/66
CPC分类号： G11B11/10586 , Y10S428/90
摘要： A magneto-optic disk has a readout layer formed of a bismuth-substituted garnet having a chemical composition represented by Bi.sub.x R.sub.3-x M.sub.y Fe.sub.5-y O.sub.12 and a recording layer formed of a nonbismuth-substituted garnet having a chemical composition represented by R.sub.3 M, Fe.sub.5-z O.sub.12 (where 0.ltoreq.x.ltoreq.3, 0.ltoreq.y
摘要翻译：磁光盘具有由具有由Bix R3-x My Fe5-yO12表示的化学组成的铋取代石榴石形成的读出层和由具有由R3 M表示的化学组成的无铋取代石榴石形成的记录层，Fe5-z O12（其中0

18. 发明授权

US07630155B2 Eccentricity correction method, signal processing circuit, magnetic storage apparatus and perpendicular magnetic recording medium 失效
标题翻译：偏心校正方法，信号处理电路，磁存储装置和垂直磁记录介质
公开(公告)号：US07630155B2
公开(公告)日：2009-12-08
申请号：US11474156
申请日：2006-06-23
申请人： Tsugito Maruyama , Sumio Kuroda
发明人： Tsugito Maruyama , Sumio Kuroda
IPC分类号： G11B5/09 , G11B5/596
CPC分类号： G11B20/10009 , G11B5/59627 , G11B20/1217 , G11B2220/2516
摘要： A magnetic storage apparatus has a reproducing head to reproduce information from a perpendicular magnetic recording medium that is recorded with servo information, eccentricity correction data and read/write data. The apparatus further has a filter part to filter a reproduced output of the reproducing head by filtering the servo information which has a differentiated waveform by a non-differentiating characteristic and by filtering the eccentricity correction data and the read/write data which have rectangular waveforms by a differentiating characteristic, a demodulating part to demodulate the servo information, the eccentricity correction data and the read/write data that are filtered by the filter part, and a servo system to carry out a control process including an eccentricity control based on the servo information and the eccentricity correction data that are demodulated.
摘要翻译：磁存储装置具有用于从记录有伺服信息，偏心校正数据和读/写数据的垂直磁记录介质再现信息的再现头。该装置还具有滤波器部分，以通过对具有差分波形的非微分特性进行滤波的伺服信息，并通过滤波具有矩形波形的偏心校正数据和读/写数据来过滤再现头的再现输出微分特性，用于解调伺服信息的解调部分，由滤波部分滤波的偏心校正数据和读/写数据;以及伺服系统，用于执行包括基于伺服信息的偏心控制的控制处理以及被解调的偏心校正数据。

19. 发明申请

US20070217047A1 Master medium for perpendicular magnetic transfer, method of perpendicular magnetic transfer, perpendicular magnetic recording medium and perpendicular magnetic recording apparatus 审中-公开
标题翻译：用于垂直磁转移的主介质，垂直磁转移方法，垂直磁记录介质和垂直磁记录装置
公开(公告)号：US20070217047A1
公开(公告)日：2007-09-20
申请号：US11716007
申请日：2007-03-09
申请人： Kenji Ichikawa , Toshihiro Usa , Kazuhiro Niitsuma , Tadashi Yasunaga , Sumio Kuroda , Tsugito Maruyama
发明人： Kenji Ichikawa , Toshihiro Usa , Kazuhiro Niitsuma , Tadashi Yasunaga , Sumio Kuroda , Tsugito Maruyama
IPC分类号： G11B5/86 , G11B5/82
CPC分类号： G11B5/865 , B82Y10/00 , G11B5/743 , G11B5/82
摘要： An aspect of the present invention provides a master medium for perpendicular magnetic transfer, comprising: a disk-like substrate on a surface of which a plurality of protruding magnetic-layer patterns corresponding to information to be transferred to a magnetic recording medium targeted for transfer are formed. In the master medium for perpendicular magnetic transfer, a ratio of a circumferential width L of the protruding magnetic-layer patterns to a circumferential gap S between the protruding magnetic-layer patterns is L/S
摘要翻译：本发明的一个方面提供了一种用于垂直磁转移的主介质，其特征在于，包括：一个表面上的盘状衬底，其中多个突出的磁性层图案对应于要传送到用于传送的磁记录介质的信息形成。在用于垂直磁转移的主介质中，突出磁层图案的周向宽度L与突出磁层图案之间的周向间隙S的比率为L / S <1。根据本发明的方面，可以进行良好的磁转移，因此可以获得没有缺陷并具有良好C / N比的垂直磁记录介质（从盘）。另外，可以进行良好的磁转移。

20. 发明申请

US20070217046A1 Magnetic pattern replication method and magnetic pattern replication apparatus 审中-公开
标题翻译：磁图复制方法和磁图复制装置
公开(公告)号：US20070217046A1
公开(公告)日：2007-09-20
申请号：US11455793
申请日：2006-06-20
申请人： Yutaka Nakamura , Sumio Kuroda , Hiroyuki Suzuki
发明人： Yutaka Nakamura , Sumio Kuroda , Hiroyuki Suzuki
IPC分类号： G11B5/86
CPC分类号： G11B5/865 , G11B5/5965
摘要： Magnetic pattern replication method and apparatus suitable for high-density, compact small diameter magnetic recording medium, and for which a master information carrier are proposed. The magnetic pattern replication method includes the steps of forming on one surface of the master information carrier a plurality of magnetic patterns corresponding to the information that is to be recorded on the disk-shaped magnetic recording medium having a diameter smaller than that of said master information carrier; bringing into contact and aligning said magnetic recording medium with the respective plurality of magnetic patterns formed on one surface of said master information carrier; and applying direct current magnetic fields corresponding respectively to said plurality of magnetic patterns to transfer said plurality of magnetic patterns formed on the master information carrier onto said contacting and aligned disk-shaped magnetic recording media corresponding to the respective said magnetic patterns.
摘要翻译：适用于高密度，紧凑型小直径磁记录介质的磁图复制方法和装置，并提出了主信息载体。磁图案复制方法包括以下步骤：在主信息载体的一个表面上形成与要记录在直径小于所述主信息的盘形磁记录介质的信息相对应的多个磁图案载体使所述磁记录介质与形成在所述主信息载体的一个表面上的相应的多个磁图形接触和对准; 并且分别施加与所述多个磁图案相对应的直流磁场，以将形成在主信息载体上的所述多个磁图案转印到对应于相应的所述磁图案的所述接触和对准的盘形磁记录介质上。

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