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1. 发明授权

US06994029B2 Magnetic transfer method and magnetic transfer device 失效
标题翻译：磁转移方式和磁转移装置
公开(公告)号：US06994029B2
公开(公告)日：2006-02-07
申请号：US10654500
申请日：2003-09-03
申请人： Hideyuki Hashi , Taizo Hamada , Toshio Makabe , Kiyokazu Toma , Tatsuaki Ishida , Yasuaki Ban , Keizo Miyata
发明人： Hideyuki Hashi , Taizo Hamada , Toshio Makabe , Kiyokazu Toma , Tatsuaki Ishida , Yasuaki Ban , Keizo Miyata
IPC分类号： B41M1/10
CPC分类号： G11B5/865 , G11B5/59633 , G11B23/505
摘要： A magnetic transfer method which superposes on a magnetic disk surface a magnetic transfer master disk (2) on which a magnetic film is formed so as to have an array pattern shape corresponding to a preset information signal, and magnetizes the magnetic film on the master disk (2) to thereby magnetic-transfer-record the array pattern of the information signal on the master disk (2) onto the magnetic disk as the magnetized pattern of the information signal, the method characterized by comprising a step of contacting/separating to/from a dummy disk (1) the magnetic film-formed surface of the master disk (2) to thereby clean the master disk (2), and a step of superposing, after the cleaning, the master disk (2) on the magnetic disk for magnetic transfer recording; and a magnetic transfer device for the method.
摘要翻译：一种磁转移方法，其在磁盘表面上叠加形成有磁性膜的磁性传递母盘（2），以具有与预置信息信号相对应的阵列图案形状，并且磁化主磁盘上的磁性膜（2），从而磁信号将主盘（2）上的信息信号的阵列图案作为信息信号的磁化图形记录到磁盘上，该方法的特征在于包括：将/ 从虚拟盘（1）将主盘（2）的磁性膜形成表面从主盘（2）清除，并将清洁后的主盘（2）重叠在磁盘用于磁转录音; 和用于该方法的磁转移装置。

2. 发明授权

US06665133B1 Magnetic transfer method and magnetic transfer device 失效
标题翻译：磁转移方式和磁转移装置
公开(公告)号：US06665133B1
公开(公告)日：2003-12-16
申请号：US09720146
申请日：2001-03-09
申请人： Hideyuki Hashi , Taizo Hamada , Toshio Makabe , Kiyokazu Toma , Tatsuaki Ishida , Yasuaki Ban , Keizo Miyata
发明人： Hideyuki Hashi , Taizo Hamada , Toshio Makabe , Kiyokazu Toma , Tatsuaki Ishida , Yasuaki Ban , Keizo Miyata
IPC分类号： G11B586
CPC分类号： G11B5/865 , G11B5/59633 , G11B23/505
摘要： A magnetic transfer method which superposes on a magnetic disk surface a magnetic pattern from a master disk (2), said master disc having on its surface a magnetic film formed so as to have an array pattern shape corresponding to a preset data signal, magnetized into the magnetic film of the master disk (2). The master disc is used to magnetically transfer the array pattern of the data signal onto the magnetic disk as the magnetized pattern of the data signal. The method characterized comprises steps of contacting and separating, to and from a dummy disk (1) the magnetic film-formed surface of the master disk (2) to thereby clean the master disk (2), and a step of superposing, after the cleaning, the master disk (2) on the magnetic disk for effectuating the magnetic transfer.
摘要翻译：一种磁性传递方法，其在磁盘表面上叠加来自主盘（2）的磁性图案，所述母盘在其表面上具有形成为具有对应于预设数据信号的阵列图案形状的磁性膜，被磁化成主盘（2）的磁膜。主盘用于将数据信号的阵列图案作为数据信号的磁化图案磁转移到磁盘上。该方法的特征在于包括以下步骤：将虚拟盘（1）与主盘（2）的磁性膜形成表面接触和分离，从而清洁母盘（2），并且在清洁磁盘上的主盘（2），以实现磁转移。

3. 发明授权

US06646820B1 Method for recording magnetic recording medium 失效
标题翻译：记录磁记录介质的方法
公开(公告)号：US06646820B1
公开(公告)日：2003-11-11
申请号：US09869947
申请日：2001-07-03
申请人： Tatsuaki Ishida , Taizou Hamada , Hideyuki Hashi , Keizo Miyata , Yasuaki Ban , Hiromi Kita
发明人： Tatsuaki Ishida , Taizou Hamada , Hideyuki Hashi , Keizo Miyata , Yasuaki Ban , Hiromi Kita
IPC分类号： G11B586
CPC分类号： G11B5/865 , G11B5/127 , G11B5/23 , G11B5/82
摘要： A master information carrier (2) with an arranged pattern formed of a ferromagnetic film in a shape corresponding to information signals is superposed on a magnetic recording medium (1) and the arranged pattern formed of a ferromagnetic film is magnetized with a magnetizing head (6), thus transfer-recording the arranged pattern into the magnetic recording medium as a magnetized pattern. The magnetizing head includes an annular magnetic circuit with a gap, and a strength of a magnetic field applied to the master information carrier by magnetic flux leaking from portions other than the gap is set to be 20% or less of that of a magnetic field applied to the master information carrier by magnetic flux leaking from the gap. Quality deterioration due to various conditions during recording can be prevented and uniform recording with less variation depending on position on the magnetic recording medium is achieved.
摘要翻译：具有与信息信号相对应的铁磁膜形成的排列图案的主信息载体（2）叠加在磁记录介质（1）上，由铁磁膜形成的排列图案被磁化头（6 ），从而将布置的图案作为磁化图案转印记录到磁记录介质中。磁化头包括具有间隙的环形磁路，并且通过从除了间隙之外的部分泄漏的磁通量施加到主信息载体的磁场强度设定为施加的磁场的磁场强度的20％以下通过磁通从主信息载体泄漏出来。可以防止由记录期间的各种条件导致的质量劣化，并且实现根据磁记录介质上的位置具有较小变化的均匀记录。

4. 发明授权

US07061703B2 Master information carrier and method for manufacturing magnetic disc using the same 失效
公开(公告)号：US07061703B2
公开(公告)日：2006-06-13
申请号：US10686145
申请日：2003-10-14
申请人： Tatsuaki Ishida , Keizo Miyata , Nobuyuki Komura , Yasuaki Ban , Taizou Hamada , Hideyuki Hashi
发明人： Tatsuaki Ishida , Keizo Miyata , Nobuyuki Komura , Yasuaki Ban , Taizou Hamada , Hideyuki Hashi
IPC分类号： G11B5/86
CPC分类号： B82Y10/00 , G11B5/59633 , G11B5/743 , G11B5/82 , G11B5/865
摘要： A master information carrier capable of manufacturing a magnetic recording medium in which a preformat recording of information signals causing no reproduction signal detection errors arising from a pulse shift of a reproduction waveform is performed. A master information carrier 1 has an array of ferromagnetic thin films 3 arranged according to the pattern of information signals and is used for forming magnetization 4 of a pattern corresponding to the array pattern of the ferromagnetic thin film 3 in a magnetic recording medium by applying a magnetic field while opposing the master information carrier 1 against a magnetic recording medium 2. Each of the ferromagnetic thin films 3 is formed such that each pattern length A becomes equal to a length including a correction amount α in addition to a length a between magnetic transition areas 6 of the magnetization 4 to be formed in the magnetic recording medium 2.

5. 发明授权

US06858329B2 Master disc and method for manufacturing magnetic disc using the same 失效
标题翻译：主盘及其制造方法
公开(公告)号：US06858329B2
公开(公告)日：2005-02-22
申请号：US09980183
申请日：2001-03-29
申请人： Taizou Hamada , Hideyuki Hashi , Tatsuaki Ishida , Nobuyuki Komura , Yasuaki Ban , Keizo Miyata , Kiyokazu Tohma
发明人： Taizou Hamada , Hideyuki Hashi , Tatsuaki Ishida , Nobuyuki Komura , Yasuaki Ban , Keizo Miyata , Kiyokazu Tohma
IPC分类号： G11B5/596 , G11B5/82 , G11B5/86 , G11B23/50 , G11B5/66
CPC分类号： B82Y10/00 , G11B5/59633 , G11B5/743 , G11B5/82 , G11B5/865 , G11B23/505
摘要： A master disc capable of conducting a preformat recording by a magnetic transcription without causing any unevenness over an entire magnetic disc is provided. The master disc is provided with a radial land portion where an array of ferromagnetic thin films is formed and a concave portion against the land portion. The land portion and the concave portion are formed such that the land portion is joined with the surface of the magnetic disc when the present magnetic disc is overlapped on the magnetic disc, and that the concave portion is not contacted with the surface of the magnetic disc, and also that a space surrounded by the surface of the magnetic disc and the concave portion is open to air at a peripheral end portion of the magnetic disc.
摘要翻译：提供能够通过磁转录进行预格式化记录而不在整个磁盘上造成任何不均匀的母盘。主盘设置有形成铁磁性薄膜阵列的径向接地部分和抵靠陆部的凹部。当磁盘重叠在磁盘上时，陆部和凹部形成为使得陆部与磁盘的表面接合，并且凹部不与磁盘的表面接触并且由磁盘的表面和凹部包围的空间在磁盘的周边端部对空气开放。

6. 发明授权

US07057834B2 Master information carrier and method for manufacturing magnetic disc using the same 有权
标题翻译：主信息载体及其制造方法
公开(公告)号：US07057834B2
公开(公告)日：2006-06-06
申请号：US09979872
申请日：2001-03-29
申请人： Tatsuaki Ishida , Keizo Miyata , Nobuyuki Komura , Yasuaki Ban , Taizou Hamada , Hideyuki Hashi
发明人： Tatsuaki Ishida , Keizo Miyata , Nobuyuki Komura , Yasuaki Ban , Taizou Hamada , Hideyuki Hashi
IPC分类号： G11B5/86
CPC分类号： B82Y10/00 , G11B5/59633 , G11B5/743 , G11B5/82 , G11B5/865
摘要： A master information carrier capable of manufacturing a magnetic recording medium in which a preformat recording of information signals causing no reproduction signal detection errors arising from a pulse shift of a reproduction waveform is performed. A master information carrier 1 has an array of ferromagnetic thin films 3 arranged according to the pattern of information signals and is used for forming magnetization 4 of a pattern corresponding to the array pattern of the ferromagnetic thin film 3 in a magnetic recording medium by applying a magnetic field while opposing the master information carrier 1 against a magnetic recording medium 2. Each of the ferromagnetic thin films 3 is formed such that each pattern length A becomes equal to a length including a correction amount α in addition to a length a between magnetic transition areas 6 of the magnetization 4 to be formed in the magnetic recording medium 2.
摘要翻译：能够制造磁记录介质的主信息载体，其中执行不再现由再现波形的脉冲移位引起的再现信号检测错误的信息信号的预格式化记录。主信息载体1具有根据信息信号的图案布置的铁磁薄膜3的阵列，并且用于在磁记录介质中形成与铁磁性薄膜3的阵列图案对应的图案的磁化4，同时与主信息载体1相对于磁记录介质2相对。每个铁磁薄膜3被形成为使得除了要在磁记录介质2中形成的磁化4的磁性过渡区域6之间的长度a之外，每个图案长度A也等于包括校正量α的长度。

7. 发明授权

US06785070B2 Magnetic transcription device 失效
标题翻译：磁转录装置
公开(公告)号：US06785070B2
公开(公告)日：2004-08-31
申请号：US10007416
申请日：2001-12-03
申请人： Kouji Taniguchi , Kaoru Matsuoka , Taizou Hamada , Hideyuki Hashi , Yasuaki Ban , Tatsuaki Ishida
发明人： Kouji Taniguchi , Kaoru Matsuoka , Taizou Hamada , Hideyuki Hashi , Yasuaki Ban , Tatsuaki Ishida
IPC分类号： G11B586
CPC分类号： G11B5/865 , G11B5/59633 , G11B23/505
摘要： A magnetic transcription device for transcribing information signals of a master information carrier in a magnetic recording medium by applying a magnetic field generated by magnetic field generating means to a contact body obtained by contacting the master information carrier having a base on which ferromagnetic bodies corresponding to the information signals are formed with a magnetic recording medium having a ferromagnetic layer, wherein the magnetic recording medium includes driving means for adjusting a distance between the magnetic field generating means and the contact body while rotating the magnetic field generating means relative to the contact body. Accordingly, an external magnetic field can be applied and removed for transcription of the information signals of the master information carrier in the magnetic recording medium while rotating the magnetic field generating means relative to the contact body, so that the deterioration of reproduction signals from the magnetic recording medium can be prevented.
摘要翻译：一种磁转录装置，用于通过将由磁场产生装置产生的磁场施加到磁场产生装置上的磁场来转录主信息载体的信息信号，该接触体通过使具有基底的主信息载体接触而获得，信息信号由具有铁磁层的磁记录介质形成，其中磁记录介质包括用于在磁场产生装置相对于接触体旋转的同时调节磁场产生装置和接触体之间的距离的驱动装置。因此，在使磁场产生装置相对于接触体旋转的同时，可以施加和去除外部磁场以转录磁记录介质中的主信息载体的信息信号，从而使来自磁性的再现信号的恶化可以防止记录介质。

8. 发明授权

US5427869A Magnetic recording medium and method for producing the same 失效
标题翻译：磁记录介质及其制造方法
公开(公告)号：US5427869A
公开(公告)日：1995-06-27
申请号：US103759
申请日：1993-08-10
申请人： Ryuji Sugita , Kiyokazu Tohma , Tatsuaki Ishida , Yasuaki Ban
发明人： Ryuji Sugita , Kiyokazu Tohma , Tatsuaki Ishida , Yasuaki Ban
IPC分类号： G11B5/66 , G11B5/64 , G11B5/65 , G11B5/73 , G11B5/85
CPC分类号： G11B5/65 , G11B5/656 , G11B5/85 , Y10S428/90
摘要： A magnetic recording medium includes a nonmagnetic substrate and a magnetic layer which is formed on a surface of the substrate and which has an axis of easy magnetization inclined from a direction to normal plane of the layer. An angular dependency of coercive force, of the medium which is measured by changing an application angle of a magnetic field in a range relative to -90.degree. to +90.degree. from the plane of the layer with a plane normal to the layer and including the axis of easy magnetization, has two local maximum values and two local minimum values. A ratio of the local maximum value closer to a plane direction to the minimum value closer of the layer to the local plane direction of the layer is from 1.6 to 2.4, and the local maximum value closer to the plane direction of the layer is larger than the local maximum value closer to the line normal to of the plane of the layer. The medium has a high S/N ratio.
摘要翻译：磁记录介质包括非磁性基板和磁性层，该磁性层形成在基板的表面上，并且具有从层的方向到法线平面的易磁化轴。介质的矫顽力的角度依赖性，其通过将具有与该层垂直的平面相对于-90°至+90°的范围内的磁场的施加角度改变而测量，并且包括轴易于磁化，具有两个局部最大值和两个局部最小值。局部最大值比平面方向的距离越接近层的距离越靠近层的局部平面方向的最小值的比值为1.6到2.4，并且更靠近层的平面方向的局部最大值大于局部最大值越接近层的平面垂直线。介质具有较高的S / N比。

9. 发明授权

US5534324A Magnetic recording medium and method for producing the same 失效
标题翻译：磁记录介质及其制造方法
公开(公告)号：US5534324A
公开(公告)日：1996-07-09
申请号：US151704
申请日：1993-11-10
申请人： Ryuji Sugita , Kiyokazu Tohma , Tatsuaki Ishida , Yasuaki Ban
发明人： Ryuji Sugita , Kiyokazu Tohma , Tatsuaki Ishida , Yasuaki Ban
IPC分类号： G11B5/64 , G11B5/65 , G11B5/66 , G11B5/73 , G11B5/738 , G11B5/85 , H01F1/00 , G11B5/70
CPC分类号： G11B5/66 , Y10S428/90 , Y10T428/12465 , Y10T428/12931
摘要： A magnetic recording medium has a cobalt-based first magnetic layer and a cobalt-based second magnetic layer which are formed on a substrate of high polymer by vacuum evaporation. In order to have a high reproducing output and a high S/N ratio, the first magnetic layer has high oxygen density area which is arranged at a vicinity of the second magnetic layer, and the second magnetic layer has high oxygen density area which is arranged at a vicinity of the first magnetic layer.
摘要翻译：磁记录介质具有钴基第一磁性层和钴基第二磁性层，它们通过真空蒸镀形成在高分子的基片上。为了具有高再现输出和高S / N比，第一磁性层具有高氧浓度区域，其布置在第二磁性层附近，并且第二磁性层具有高的氧气密度区域，其被布置在第一磁性层附近。

10. 发明授权

US06914735B2 Manufacturing method for magnetic recording medium, and master information carrier used therefor 失效
标题翻译：磁记录介质的制造方法和用于其的主信息载体
公开(公告)号：US06914735B2
公开(公告)日：2005-07-05
申请号：US10261673
申请日：2002-10-02
申请人： Taizou Hamada , Tatsuaki Ishida , Yasuaki Ban
发明人： Taizou Hamada , Tatsuaki Ishida , Yasuaki Ban
IPC分类号： G11B5/86 , G11B5/84
CPC分类号： G11B5/865
摘要： In a manufacturing method for a magnetic recording medium, when the length of a ferromagnetic thin film on a master information carrier corresponding to the length between a pair of magnetization transition regions adjacent to each other is A in magnetization information recorded onto a magnetic recording medium, the film thickness of the ferromagnetic thin film is t and A/t is k, k is set from not less than 0.8 to not more than 8.
摘要翻译：在磁记录介质的制造方法中，当与记录在磁记录介质上的磁化信息中的相互相邻的一对磁化过渡区之间的长度上的主信息载体上的铁磁性薄膜的长度为A时，铁磁薄膜的膜厚为t，A / t为k，k设定为0.8以上8以下。

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