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。

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.

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。

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。

公开(公告)号：US07220323B2

公开(公告)日：2007-05-22

申请号：US10362071

申请日：2002-06-19

申请人： Hideyuki Hashi ,  Keizo Miyata ,  Taizou Hamada

发明人： Hideyuki Hashi ,  Keizo Miyata ,  Taizou Hamada

IPC分类号： B08B7/04

CPC分类号： G11B5/865 ,  G11B23/505

摘要： A cleaning method preventing foreign matter attached to a brush from being transferred back to a magnetic transfer carrier by removing foreign matter attached to a cleaning tool such as the brush with a dummy carrier having a recess equivalent to that on a surface of the magnetic transfer carrier.

摘要翻译： 通过除去附着在诸如电刷的清洁工具上的异物，可以防止附着在电刷上的异物转移回磁性转移载体的清洁方法，该虚拟载体具有与磁性转移载体表面相同的凹槽 。

公开(公告)号：US06909565B2

公开(公告)日：2005-06-21

申请号：US10718136

申请日：2003-11-20

申请人： Hideyuki Hashi ,  Taizou Hamada ,  Tatsuaki Ishida ,  Kiyokazu Tohma

发明人： Hideyuki Hashi ,  Taizou Hamada ,  Tatsuaki Ishida ,  Kiyokazu Tohma

IPC分类号： G11B5/82 ,  G11B5/84 ,  G11B5/86 ,  G11B19/04 ,  G11B23/50

CPC分类号： G11B5/82 ,  G11B5/84 ,  G11B5/865 ,  G11B19/04 ,  G11B23/505

摘要： A magnetic transfer method includes a first step (ST103) of preparing a magnetic disk, a second step (ST105) of forming a layer of lubricant on the magnetic disk, a third step (ST108) of bringing a surface of the magnetic layer on the magnetic disk into close contact with a magnetic transfer master having a magnetic film formed on at least one side and magnetically transferring a pattern of the magnetic film on the magnetic transfer master onto the surface of the magnetic disk through application of an external magnetic field, and a fourth step (ST104, ST106) of burnishing at least a surface of the magnetic disk that comes into contact with the magnetic transfer master. The first step, the fourth step, the second step, the fourth step, and the third step are performed in the stated order.

摘要翻译： 磁转移方法包括制备磁盘的第一步骤（ST 103），在磁盘上形成润滑剂层的第二步骤（ST105），使磁性表面形成的第三步骤（ST 108） 在磁盘上形成与形成在至少一个侧面上的具有磁性膜的磁性传递主体紧密接触，并通过施加外部磁体将磁性传递母版上的磁性膜的图案磁性传递到磁盘表面上 以及第四步骤（ST104，ST1010），其与至少与磁转移母盘接触的磁盘表面进行抛光。 第一步骤，第四步骤，第二步骤，第四步骤和第三步骤按照所述顺序进行。

公开(公告)号：US06898032B2

公开(公告)日：2005-05-24

申请号：US10203328

申请日：2001-03-28

申请人： Hideyuki Hashi ,  Taizou Hamada ,  Tatsuaki Ishida ,  Kiyokazu Tohma

发明人： Hideyuki Hashi ,  Taizou Hamada ,  Tatsuaki Ishida ,  Kiyokazu Tohma

IPC分类号： G11B5/82 ,  G11B5/84 ,  G11B5/86 ,  G11B19/04 ,  G11B23/50

CPC分类号： G11B5/82 ,  G11B5/84 ,  G11B5/865 ,  G11B19/04 ,  G11B23/505

摘要： A magnetic transfer method includes a first step (ST103) of preparing a magnetic disk, a second step (ST105) of forming a layer of lubricant on the magnetic disk, a third step (ST108) of bringing a surface of the magnetic layer on the magnetic disk into close contact with a magnetic transfer master having a magnetic film formed on at least one side and magnetically transferring a pattern of the magnetic film on the magnetic transfer master onto the surface of the magnetic disk through application of an external magnetic field, and a fourth step (ST104, ST106) of burnishing at least a surface of the magnetic disk that comes into contact with the magnetic transfer master. The first step, the fourth step, the second step, the fourth step, and the third step are performed in the stated order.

摘要翻译： 磁转移方法包括制备磁盘的第一步骤（ST 103），在磁盘上形成润滑剂层的第二步骤（ST105），使磁性表面形成的第三步骤（ST 108） 在磁盘上形成与形成在至少一个侧面上的具有磁性膜的磁性传递主体紧密接触，并通过施加外部磁体将磁性传递母版上的磁性膜的图案磁性传递到磁盘表面上 以及第四步骤（ST104，ST1010），其与至少与磁转移母盘接触的磁盘表面进行抛光。 第一步骤，第四步骤，第二步骤，第四步骤和第三步骤按照所述顺序进行。

公开(公告)号：US06903886B2

公开(公告)日：2005-06-07

申请号：US09879597

申请日：2001-06-12

申请人： Nobuhide Matsuda ,  Taizou Hamada ,  Hideyuki Hashi ,  Hiroshi Hashida ,  Eiichi Fujisawa ,  Shoichi Seki

发明人： Nobuhide Matsuda ,  Taizou Hamada ,  Hideyuki Hashi ,  Hiroshi Hashida ,  Eiichi Fujisawa ,  Shoichi Seki

IPC分类号： G11B5/86 ,  G11B23/50 ,  G11B5/086

CPC分类号： G11B5/865 ,  G11B23/505

摘要： Within a casing accommodating members for performing magnetic transfer of signals from one medium to another, a plurality of suction ports are fixedly disposed at various locations. Resin tubes connect the suction ports to respective particle counters for the measurement of particles at each location, whereby the source of particles is locatable.

摘要翻译： 在用于执行从一种介质到另一种介质的磁传递的壳体容纳构件中，多个吸入口固定地设置在各个位置处。 树脂管将抽吸口连接到相应的颗粒计数器，用于在每个位置处测量颗粒，由此颗粒源可定位。

公开(公告)号：US06850377B2

公开(公告)日：2005-02-01

申请号：US10123417

申请日：2002-04-17

申请人： Hideyuki Hashi ,  Taizou Hamada ,  Tatsuaki Ishida

发明人： Hideyuki Hashi ,  Taizou Hamada ,  Tatsuaki Ishida

IPC分类号： G01R33/12 ,  G11B5/86 ,  G11B23/50 ,  G11B27/36 ,  G11B33/10

CPC分类号： G01R33/1207 ,  G11B5/865 ,  G11B23/505 ,  G11B27/36 ,  G11B33/10 ,  G11B2220/20

摘要： Instead of directly performing defect inspection using a master information carrier, an inspection substrate is prepared to then bring the master information carrier in close contact therewith, to thereby transfer a defect on the master information carrier to the inspection substrate, thus indirectly inspecting any defect of the master information carrier on the inspection substrate. Defect inspection is performed on the first-state inspection substrate before close contacting, so that a defect inspection result on the second-state inspection substrate after close contacting and that on the first-state inspection substrate are compared to each other.

摘要翻译： 代替使用主信息载体直接执行缺陷检查，准备检查基板，使主信息载体紧密接触，从而将主信息载体上的缺陷传送到检查基板，从而间接地检查 检测基板上的主信息载体。 在紧密接触之前对第一状态检查基板进行缺陷检查，从而将紧密接触后的第二状态检查基板与第一状态检查基板上的缺陷检查结果进行比较。

公开(公告)号：US06762892B2

公开(公告)日：2004-07-13

申请号：US09994676

申请日：2001-11-28

申请人： Taizou Hamada ,  Hideyuki Hashi

发明人： Taizou Hamada ,  Hideyuki Hashi

IPC分类号： G11B586

CPC分类号： G11B23/505 ,  G11B5/865 ,  G11B23/00

摘要： A master information carrier is made to overlap with a magnetic recording medium being a magnetic recording medium in an adhering state, and a pattern corresponding to information signals on the master information carrier is transferred to the magnetic recording medium, thereby magnetically transferring a magnetized pattern of information signals to the magnetic recording medium. Thereafter, an urging force to the magnetic recording medium side is applied to the master information carrier, and in the urging force applied state, a gas under pressure is supplied on the adhering/joining surfaces of the master information carrier and the magnetic recording medium, thereby releasing the adhering state of the master information carrier and the magnetic recording medium. Then, the application of the urging force is released to continue the supply of the gas under pressure, thereby pulling away the master information carrier from the magnetic recording medium and moving them.

摘要翻译： 使主信息载体与粘接状态下的作为磁记录介质的磁记录介质重叠，并且与主信息载体上的信息信号相对应的图案被传送到磁记录介质，由此磁性传送磁化图案 信息信号到磁记录介质。 此后，向主信息载体施加对磁记录介质侧的施力，并且在施力的施加状态下，在主信息载体和磁记录介质的粘接/接合表面上提供压力气体， 从而释放主信息载体和磁记录介质的附着状态。 然后释放施力作用，继续在压力下供给气体，从而将主信息载体从磁记录介质上拉出并移动。