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1. 发明授权

US06821869B2 Photomask, method of generating resist pattern, and method of fabricating master information carrier 失效
标题翻译：光掩模，产生抗蚀剂图案的方法，以及制造主信息载体的方法
公开(公告)号：US06821869B2
公开(公告)日：2004-11-23
申请号：US10139379
申请日：2002-05-07
申请人： Terumi Yanagi , Nobuyuki Komura , Tatsuaki Ishida , Keizo Miyata
发明人： Terumi Yanagi , Nobuyuki Komura , Tatsuaki Ishida , Keizo Miyata
IPC分类号： H01L21425
CPC分类号： G11B5/3163 , G03F7/115 , G03F7/2014 , G03F7/203 , G11B5/865
摘要： A recess for deaeration is formed in the surface of a resist film by using the photolithography technique, a photomask is allowed to come into contact with projections for close contact on both sides or around the recess for deaeration, and evacuation is performed via the recess for deaeration, thereby enhancing close contact between the photomask and the projections for close contact. With the configuration, a resist pattern having an accurate recess while preventing diffraction of light is formed.
摘要翻译：通过使用光刻技术在抗蚀剂膜的表面形成用于脱气的凹部，允许光掩模与两个侧面或周围的突起紧密接触以进行脱气，并且通过凹部进行抽真空脱泡，从而增强光掩模和突起之间的紧密接触以进行紧密接触。利用该结构，形成具有准确的凹部同时防止光的衍射的抗蚀图案。

2. 发明授权

US06714367B1 Master information medium and method of master information recording 失效
标题翻译：主信息介质和主信息记录方法
公开(公告)号：US06714367B1
公开(公告)日：2004-03-30
申请号：US09555583
申请日：2000-08-07
申请人： Tatsuaki Ishida , Hiroshi Ryonai , Nobuyuki Komura , Keizo Miyata , Kiyokazu Tohma
发明人： Tatsuaki Ishida , Hiroshi Ryonai , Nobuyuki Komura , Keizo Miyata , Kiyokazu Tohma
IPC分类号： G11B586
CPC分类号： B82Y10/00 , G11B5/64 , G11B5/656 , G11B5/74 , G11B5/743 , G11B5/82 , G11B5/855 , G11B5/865
摘要： A master information carrier has a shape pattern corresponding to an information signal array to be recorded on a magnetic recording medium, and the shape pattern is provided by arraying a ferromagnetic thin film deposited on a nonmagnetic substrate surface. The ferromagnetic thin film is either a soft magnetic film or semihard magnetic film having not more than 40 kA/m coercive force in track length direction of the information signals, and residual magnetization of the ferromagnetic thin film in the track length direction of the information signals is greater than coercive force of the magnetic recording medium. As a result, a master information carrier with superior magnetic recording performance can be obtained.
摘要翻译：主信息载体具有对应于要记录在磁记录介质上的信息信号阵列的形状图案，并且通过排列沉积在非磁性基板表面上的铁磁性薄膜来提供形状图案。铁磁性薄膜是在信息信号的轨道长度方向上具有不超过40kA / m矫顽力的软磁性膜或半硬磁性薄膜，以及信息信号的磁道长度方向上的铁磁性薄膜的剩余磁化大于磁记录介质的矫顽力。结果，可以获得具有优良磁记录性能的主信息载体。

3. 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。

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

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。

7. 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。

8. 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。

9. 发明申请

US20050052767A1 Magnetic disk apparatus, method for determining data track pitch, and self-servo write method 有权
标题翻译：磁盘装置，数据磁道间距的确定方法以及自伺服写入方法
公开(公告)号：US20050052767A1
公开(公告)日：2005-03-10
申请号：US10931971
申请日：2004-09-02
申请人： Keizo Miyata , Hiroshi Kohso , Makoto Kimura , Tatsuaki Ishida
发明人： Keizo Miyata , Hiroshi Kohso , Makoto Kimura , Tatsuaki Ishida
IPC分类号： G11B5/596 , G11B5/86 , G11B27/36 , G11B5/09 , G11B21/02
CPC分类号： G11B5/59633 , G11B5/865
摘要： A self-servo reference signal including a timing pattern and an oblique phase pattern is transferred in advance on a magnetic disk 1 by magnetic printing. A phase difference detection section 13 detects a phase difference between the two patterns to detect the position of a magnetic head 2. A burst signal generated by a record signal generation section 14 is recorded in a region of the magnetic disk 1 where no self-servo reference signal is recorded. A track pitch calculation section 11 determines a relationship between the reproduction output of the burst signal detected by a reproduction signal processing section 12 and the phase difference detected by the phase difference detection section 13, thus calculating an optimum data track pitch.
摘要翻译：包括定时模式和倾斜相位图案的自伺服参考信号通过磁性印刷预先传送到磁盘1上。相位差检测部分13检测两个图案之间的相位差以检测磁头2的位置。由记录信号产生部分14产生的脉冲串信号被记录在磁盘1的没有自伺服的区域中参考信号被记录。轨道间距计算部分11确定由再现信号处理部分12检测到的脉冲串信号的再现输出与由相位差检测部分13检测的相位差之间的关系，从而计算最佳数据磁道间距。

10. 发明授权

US06858328B1 Master information support 失效
标题翻译：掌握信息支持
公开(公告)号：US06858328B1
公开(公告)日：2005-02-22
申请号：US09646139
申请日：1999-03-18
申请人： Tatsuaki Ishida , Kiyokazu Tohma , Keizo Miyata , Yoriko Takai , Taizou Hamada , Hiroshi Ryonai
发明人： Tatsuaki Ishida , Kiyokazu Tohma , Keizo Miyata , Yoriko Takai , Taizou Hamada , Hiroshi Ryonai
IPC分类号： G11B5/73 , G11B5/127 , G11B5/55 , G11B5/596 , G11B5/64 , G11B5/72 , G11B5/738 , G11B5/82 , G11B5/84 , G11B5/855 , G11B5/86 , G11B5/66 , B05D5/12 , G11B5/70 , H01F1/00
CPC分类号： G11B5/865 , B82Y10/00 , G11B5/656 , G11B5/72 , G11B5/743 , G11B5/82 , G11B5/8408 , G11B5/855 , Y10S428/90
摘要： A master information carrier with excellent durability is provided, for the use of static and a real lump-sum recording of digital information signals on magnetic recording medium. The master information carrier comprises a non-magnetic substrate on which a ferromagnetic film is disposed with an embossed pattern. Protrusions of the embossed pattern correspond to a disposition of the digital information signals.Recessed portions of the embossed pattern of the ferromagnetic film are filled with non-magnetic solid material. Alternately, A non-magnetic substrate has an embossed pattern and recessed portions of the embossed pattern correspond to a disposition of the digital information signals. A ferromagnetic film is filled in the recessed portions of the embossed pattern.
摘要翻译：提供了具有优异耐久性的主信息载体，用于在磁记录介质上使用静态和数字信息信号的实际一次总计记录。主信息载体包括其上以压花图案设置铁磁膜的非磁性基板。浮雕图案的突起对应于数字信息信号的布置。铁磁膜的压花图案的凹入部分填充有非磁性固体材料。或者，非磁性基板具有压花图案，并且压花图案的凹部对应于数字信息信号的布置。铁氧体膜填充在压纹图案的凹部中。

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