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21. 发明申请

US20070177290A1 Magnetic transferring apparatus 失效
标题翻译：磁转移装置
公开(公告)号：US20070177290A1
公开(公告)日：2007-08-02
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。

22. 发明授权

US07203014B2 Preformat method for magnetic recording medium, magnetic recording medium, and magnetic recording and reproducing apparatus 失效
标题翻译：用于磁记录介质，磁记录介质和磁记录和再现装置的预格式方法
公开(公告)号：US07203014B2
公开(公告)日：2007-04-10
申请号：US10632293
申请日：2003-08-01
申请人： Sumio Kuroda , Kazuyuki Ozaki
发明人： Sumio Kuroda , Kazuyuki Ozaki
IPC分类号： G11B5/09
CPC分类号： G11B20/1403 , G11B5/012 , G11B5/59616 , G11B5/59633 , G11B5/82 , G11B27/32 , G11B2220/20 , H03L7/093 , H03L7/18
摘要： The magnetic recording and reproducing apparatus reads a transfer clock synchronized with servo information and records a write-once clock pattern in a state where 0 is set as a delay time of the delay device 13 and 1 is set as the dividing ratio of the frequency divider 17. The apparatus corrects the delay time according to the output of the phase comparator 14 which changes on the basis of the phase difference and rewrites a write-once clock pattern. Rotation of the magnetic disk, detection of the phase difference and correction of the delay time are repeatedly preformed until no change occurs in the output of the phase comparator 14. After the output stops changing, preformat information patterns excluding the servo information pattern are recorded as fine patterns by changing the dividing ratio of the frequency divider 17 to multiply the frequency.
摘要翻译：磁记录和再现装置读取与伺服信息同步的传送时钟，并将0写入延迟装置13的延迟时间的状态下记录一次写入时钟模式，并将1设置为分频器的分频比 17。该装置根据相位比较器14的输出校正延迟时间，相位比较器14基于相位差而改变，并重写一次写入时钟模式。重复执行磁盘的旋转，相位差的检测和延迟时间的校正，直到在相位比较器14的输出中不发生变化。在输出停止改变之后，通过改变分频器17的分频比来乘以频率，将除伺服信息模式之外的预格式化信息模式记录为精细模式。

23. 发明授权

US06248439B1 Magneto-optical recording medium and reproducing method for information recorder on the medium 失效
标题翻译：具有改善磁层的磁光记录介质
公开(公告)号：US06248439B1
公开(公告)日：2001-06-19
申请号：US08368607
申请日：1995-01-04
申请人： Ken Tamanoi , Keiji Shono , Sumio Kuroda , Motonobu Mihara , Koji Matsumoto
发明人： Ken Tamanoi , Keiji Shono , Sumio Kuroda , Motonobu Mihara , Koji Matsumoto
IPC分类号： G11B566
CPC分类号： G11B11/10584 , G11B11/10515 , G11B11/10593 , Y10S428/90 , Y10T428/12861 , Y10T428/26 , Y10T428/265
摘要： A magneto-optical recording medium capable of perfectly masking a mark adjacent to a mark to be reproduced thereby improving a reproduction output. The magneto-optical recording medium includes a transparent substrate, a magnetic reproducing layer laminated on the transparent substrate, a nonmagnetic intermediate layer laminated on the magnetic reproducing layer, and a magnetic recording layer laminated on the nonmagnetic intermediate layer. The reproducing layer has an easy direction of magnetization in a plane at room temperature, and has an easy direction of magnetization perpendicular to a film surface at a given temperature or higher. The nonmagnetic intermediate layer is thin enough to allow magnetostatic bond between the recording layer and the reproducing layer at the given temperature or higher. Instead of the nonmagnetic intermediate layer, a magnetic intermediate layer having an easy direction of magnetization in a plane from room temperature to its Curie temperature may be interposed between the reproducing layer and the recording layer.
摘要翻译：一种磁光记录介质，其能够完美地掩蔽与要再现的标记相邻的标记，从而改善再现输出。磁光记录介质包括透明基板，层叠在透明基板上的磁性再现层，层叠在磁性再现层上的非磁性中间层以及层叠在非磁性中间层上的磁记录层。再现层在室温下在平面中具有容易的磁化方向，并且在给定温度或更高温度下具有与膜表面垂直的易磁化方向。非磁性中间层足够薄，以允许在给定温度或更高温度下记录层和再生层之间的静磁结合。代替非磁性中间层，可以在再现层和记录层之间插入在从室温到其居里温度的平面中具有容易的磁化方向的磁性中间层。

24. 发明授权

US08111474B2 Eccentricity correction method, signal processing circuit, magnetic storage apparatus and perpendicular magnetic recording medium 有权
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：US08111474B2
公开(公告)日：2012-02-07
申请号：US12605016
申请日：2009-10-23
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。

25. 发明授权

US07602566B2 Magnetic transfer master and method of formatting magnetic recording medium 失效
标题翻译：磁传输主机和格式化磁记录介质的方法
公开(公告)号：US07602566B2
公开(公告)日：2009-10-13
申请号：US10930413
申请日：2004-08-31
申请人： Sumio Kuroda , Kazuyuki Ozaki
发明人： Sumio Kuroda , Kazuyuki Ozaki
IPC分类号： G11B5/86
CPC分类号： G11B5/865
摘要： A master is used for writing information to a magnetic recording disk by a magnetic transfer method. The recording disk includes a magnetic recording layer possessing vertical magnetic anisotropy. The master includes a servo zone corresponding part formed with a magnetic material pattern for recording servo information to the recording layer of the recording disk. The master also includes a user data zone corresponding part formed with a second magnetic material pattern for providing the recording layer of the recording disk with a dummy signal.
摘要翻译：主机用于通过磁转移方式将信息写入磁记录盘。记录盘包括具有垂直磁各向异性的磁记录层。主机包括形成有磁性材料图案的伺服区对应部分，用于将伺服信息记录到记录盘的记录层。主机还包括用第二磁性材料图案形成的用户数据区对应部分，用于向记录盘的记录层提供虚拟信号。

26. 发明申请

US20090244793A1 MAGNETIC TRANSFER METHOD AND MASTER MANUFACTURING METHOD 审中-公开
标题翻译：磁传输方法及主要制造方法
公开(公告)号：US20090244793A1
公开(公告)日：2009-10-01
申请号：US12334081
申请日：2008-12-12
申请人： Sumio Kuroda
发明人： Sumio Kuroda
IPC分类号： G11B5/127
CPC分类号： G11B5/865 , B82Y10/00 , G11B5/743
摘要： A magnetic transfer method includes arranging a magnetic transfer master so as to cause a surface of the magnetic transfer master to be in proximity to or in contact with a vertical magnetic recording medium. The magnetic transfer master has on the surface thereof a concave-convex pattern representing information. A top surface of a convex portion of the concave-convex pattern is divided by a plurality of projecting threads lined up and extending at an interval shorter than a shortest pattern length of the concave-convex pattern. The magnetic transfer method includes applying a magnetic field to the magnetic transfer master in a direction along the surface and intersecting the projecting threads.
摘要翻译：磁转移方法包括：设置磁转移母盘，使磁性转印母盘的表面靠近或与垂直磁记录介质接触。磁转移主体在其表面上具有表示信息的凹凸图案。凹凸图案的凸部的顶面由多个突出的线分隔开，并以比凹凸图案的最短图案长度短的间隔延伸。磁转移方法包括在沿着表面的方向上向磁转移母体施加磁场并与突出线相交。

27. 发明授权

US07532421B2 Servo demodulating circuit and method 失效
标题翻译：伺服解调电路及方法
公开(公告)号：US07532421B2
公开(公告)日：2009-05-12
申请号：US11594541
申请日：2006-11-08
申请人： Sumio Kuroda
发明人： Sumio Kuroda
IPC分类号： G11B20/08
CPC分类号： G11B20/10009 , G11B5/59605 , G11B5/865 , G11B2220/2516
摘要： Servo demodulation is performed by appropriately compensating for demodulation errors caused by fluctuation of the replayed signal amplitude of a phase servo pattern. A servo demodulating circuit comprises single waveform sampling means for reading into a register a single waveform of a servo burst signal included in a phase servo signal based on a sampling clock synchronized by clock synchronization means, single waveform digitizing means for calculating an amplitude value of the single waveform of the servo burst signal from peak and bottom of the single waveform of the servo burst signal read into the register, and for standardizing a value of the register based on an amplitude value of the single waveform of the servo burst signal, and phase information calculation means for calculating phase information of the single waveform of the servo burst signal based on the value of the register standardized by the waveform digitizing means.
摘要翻译：通过适当地补偿由相位伺服模式的重放信号幅度的波动引起的解调错误来执行伺服解调。伺服解调电路包括单波形采样装置，用于基于由时钟同步装置同步的采样时钟，将包括在相位伺服信号中的伺服脉冲串信号的单个波形读入寄存器;单波形数字化装置，用于计算伺服脉冲信号的单峰波形从伺服脉冲串信号的单波形的峰值和底部读入寄存器，并且基于伺服脉冲串信号的单个波形的振幅值来标准化寄存器的值，以及相位信息计算装置，用于基于由波形数字化装置标准化的寄存器的值来计算伺服脉冲串信号的单个波形的相位信息。

28. 发明授权

US07477464B2 Manufacturing method of recording medium, electric/magnetic field copy master and electric/magnetic field copying device 失效
标题翻译：记录介质，电/磁场复制主机和电/磁场复制装置的制造方法
公开(公告)号：US07477464B2
公开(公告)日：2009-01-13
申请号：US11507243
申请日：2006-08-21
申请人： Sumio Kuroda
发明人： Sumio Kuroda
IPC分类号： G11B5/86
CPC分类号： G11B5/865
摘要： When copying servo information from an electro-magnetic field copy master to a vertical storage medium, the magnetization direction of the vertical storage medium is made to the direction the reverse of an external electro-magnetic field applied to the vertical storage medium and the electro-magnetic field copymaster, the vertical storage medium is closely touched on the electromagnetic field copy master provided with a substrate which has concavity/convexity corresponding to the servo information and at least the convex part of which of the concavity/convexity is made of a softly magnetic material and a conductor installed in the concave part of the substrate and an external electro-magnetic field stronger than the coercive field strength of the vertical storage medium is instantaneously applied to the vertical storage medium and the electromagnetic field copy master.
摘要翻译：当将伺服信息从电磁场复制主机复制到垂直存储介质时，垂直存储介质的磁化方向与施加到垂直存储介质的外部电场相反的方向，磁场复制主体，垂直存储介质在设置有与伺服信息相对应的具有凹凸的基板的电磁场复制主体上紧密接触，并且至少其凸/凹部的凸部由软磁体材料和安装在基板的凹部中的导体和比垂直存储介质的矫顽场强强的外部电磁场立即施加到垂直存储介质和电磁场复制主机。

29. 发明申请

US20080218889A1 INFORMATION TRANSFER MASTER FOR MAGNETIC TRANSFER AND MAGNETIC TRANSFER METHOD 审中-公开
标题翻译：用于磁传输和磁传输方法的信息传输主体
公开(公告)号：US20080218889A1
公开(公告)日：2008-09-11
申请号：US12042173
申请日：2008-03-04
申请人： Sumio Kuroda , Hiroshi Chiba , Tsugito Maruyama
发明人： Sumio Kuroda , Hiroshi Chiba , Tsugito Maruyama
IPC分类号： G11B5/86
CPC分类号： G11B5/865 , B82Y10/00 , G11B5/743
摘要： An information transfer master has servo information pattern to be magnetically transferred to a magnetic recording medium having a lubrication layer thereon; and a contact surface to contact the magnetic recording medium has surface free energy that is 45 mN/m or less when the servo information pattern is magnetically transferred.
摘要翻译：信息传送主机具有磁性传递到其上具有润滑层的磁记录介质的伺服信息模式; 并且与磁记录介质接触的接触面在伺服信息图案被磁性传递时具有45mN / m以下的表面自由能。

30. 发明申请

US20070273992A1 Servo demodulating circuit and method 失效
标题翻译：伺服解调电路及方法
公开(公告)号：US20070273992A1
公开(公告)日：2007-11-29
申请号：US11594541
申请日：2006-11-08
申请人： Sumio Kuroda
发明人： Sumio Kuroda
IPC分类号： G11B20/08 , G11B20/10 , G11B5/09
CPC分类号： G11B20/10009 , G11B5/59605 , G11B5/865 , G11B2220/2516
摘要： Servo demodulation is performed by appropriately compensating for demodulation errors caused by fluctuation of the replayed signal amplitude of a phase servo pattern. A servo demodulating circuit comprises single waveform sampling means for reading into a register a single waveform of a servo burst signal included in a phase servo signal based on a sampling clock synchronized by clock synchronization means, single waveform digitizing means for calculating an amplitude value of the single waveform of the servo burst signal from peak and bottom of the single waveform of the servo burst signal read into the register, and for standardizing a value of the register based on an amplitude value of the single waveform of the servo burst signal, and phase information calculation means for calculating phase information of the single waveform of the servo burst signal based on the value of the register standardized by the waveform digitizing means.
摘要翻译：通过适当地补偿由相位伺服模式的重放信号幅度的波动引起的解调错误来执行伺服解调。伺服解调电路包括单波形采样装置，用于基于由时钟同步装置同步的采样时钟，将包括在相位伺服信号中的伺服脉冲串信号的单个波形读入寄存器;单波形数字化装置，用于计算伺服脉冲信号的单峰波形从伺服脉冲串信号的单波形的峰值和底部读入寄存器，并且基于伺服脉冲串信号的单个波形的振幅值来标准化寄存器的值，以及相位信息计算装置，用于基于由波形数字化装置标准化的寄存器的值来计算伺服脉冲串信号的单个波形的相位信息。

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