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11. 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。

12. 发明授权

US06980380B2 Master information carrier and method for manufacturing magnetic disk 失效
标题翻译：主信息载体和制造磁盘的方法
公开(公告)号：US06980380B2
公开(公告)日：2005-12-27
申请号：US10330172
申请日：2002-12-27
申请人： Keizo Miyata , Hideyuki Hashi , Tatsuaki Ishida
发明人： Keizo Miyata , Hideyuki Hashi , Tatsuaki Ishida
IPC分类号： G11B5/82 , G11B5/86 , G11B23/50
CPC分类号： B82Y10/00 , G11B5/743 , G11B5/82 , G11B5/865 , G11B23/505
摘要： A master information carrier includes a high-level region and a low-level region that are formed on a non-magnetic base. The high-level region includes a ferromagnetic thin film pattern that corresponds to preformat information signals. The master information carrier is brought into close contact with a magnetic disk by exhausting a gas from a hole of the magnetic disk to generate negative pressure in a space between the low-level region and the magnetic disk. In this case, to prevent deformation of the central portion of the master information carrier, an inner edge of the high-level region in the radial direction is extended to the vicinity of a hole edge of the magnetic disk so that a portion of the high-level region comes into contact with the vicinity of the hole edge. This configuration can improve the close contact between the master information carrier and the magnetic disk, thus achieving higher reliability of magnetic transfer recording.
摘要翻译：主信息载体包括形成在非磁性基底上的高电平区域和低电平区域。高电平区域包括对应于预格式化信息信号的铁磁薄膜图案。通过从磁盘的孔排出气体而使主信息载体与磁盘紧密接触，以在低电平区域和磁盘之间的空间中产生负压。在这种情况下，为了防止主信息载体的中心部分的变形，高度区域的径向内侧的边缘延伸到磁盘的孔边缘附近，使得一部分高水平区域与孔边缘附近接触。这种配置可以改善主信息载体和磁盘之间的紧密接触，从而实现更高的磁转移记录的可靠性。

13. 发明授权

US06781777B2 Master information carrier and method for manufacturing information recording medium using the same 失效
标题翻译：主信息载体和使用其的信息记录介质的制造方法
公开(公告)号：US06781777B2
公开(公告)日：2004-08-24
申请号：US09983077
申请日：2001-10-23
申请人： Keizo Miyata , Hideyuki Hashi , Tatsuaki Ishida
发明人： Keizo Miyata , Hideyuki Hashi , Tatsuaki Ishida
IPC分类号： G11B586
CPC分类号： G11B5/865 , G11B5/82 , G11B5/855 , G11B7/263 , G11B11/10582 , G11B23/0057 , G11B23/505
摘要： A high-level region and a low-level region are formed on a surface of a nonmagnetic base member, in which high-level region is formed a ferromagnetic thin film pattern which corresponds to a preformat information signal, in such a structure that a flow promoting shape of such a shape (e.g., smooth curved shape, polygonal shape) that inhibits the stagnation of a flow of a detergent to promote the flow in order to prevents sticking and residing of foreign matter contained in the detergent is formed at an area where the detergent is liable to stagnate in the high-level region, i.e. at an inner radial portion of a disk-shaped mater information carrier.
摘要翻译：高电平区域和低电平区域形成在非磁性基底构件的表面上，其中高级区域形成有对应于预格式化信息信号的铁磁性薄膜图案，其结构使得流动促进形成这样的形状（例如，平滑的弯曲形状，多边形），其阻止洗涤剂的流动的停滞以促进流动，以防止包含在洗涤剂中的异物的粘附和驻留在洗涤剂容易滞留在高级区域，即在盘形物料信息载体的内部径向部分处。

14. 发明授权

US07095575B2 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：US07095575B2
公开(公告)日：2006-08-22
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： G11B27/36
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没有记录自伺服参考信号的磁盘1的区域中。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。

15. 发明授权

US06611388B1 Master information magnetic recorder 失效
标题翻译：主信息磁记录器
公开(公告)号：US06611388B1
公开(公告)日：2003-08-26
申请号：US09646138
申请日：2000-09-13
申请人： Keizo Miyata , Tatsuaki Ishida , Taizou Hamada , Kiyokazu Tohma , Hiroshi Ryonai
发明人： Keizo Miyata , Tatsuaki Ishida , Taizou Hamada , Kiyokazu Tohma , Hiroshi Ryonai
IPC分类号： G11B586
CPC分类号： G11B5/5526 , G11B5/00 , G11B5/59633 , G11B5/59688 , G11B5/82 , G11B5/865
摘要： A master-information magnetic recording apparatus for recording preformat information signals into a magnetic recording medium using a ferromagnetic film pattern formed on a master information carrier, in which the pattern corresponds to the preformat information signals. With the master information carrier in contact with the magnetic recording medium, the ferromagnetic film pattern is magnetized by a magnetic field applying device. Thus, the preformat information signals are recorded into the magnetic recording medium. The magnetic field applying device is so constructed that the direction of magnetizing the ferromagnetic film pattern is perpendicular to a track-scanning orbit of a magnetic head in a recording and reproducing apparatus in which the magnetic recording medium is installed. It enables the magnetic head to gain sufficient reproduction amplitude for track-scanning for reproducing the information signals.
摘要翻译：一种主信息磁记录装置，用于使用形成在主信息载体上的铁磁膜图案将预格式化信息信号记录到磁记录介质中，其中图案对应于预格式化信息信号。在主信息载体与磁记录介质接触的情况下，铁磁膜图案被磁场施加装置磁化。因此，预格式化信息信号被记录在磁记录介质中。磁场施加装置的结构使得铁磁膜图案的磁化方向垂直于安装有磁记录介质的记录和再现装置中的磁头的轨道扫描轨道。它使磁头能够获得足够的再现幅度，用于轨道扫描以再现信息信号。

16. 发明授权

US06850377B2 Master information carrier/magnetic recording medium defect inspection method 失效
标题翻译：主信息载体/磁记录介质缺陷检测方法
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。

17. 发明授权

US06567227B2 Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier 失效
公开(公告)号：US06567227B2
公开(公告)日：2003-05-20
申请号：US10108029
申请日：2002-03-26
申请人： Tatsuaki Ishida , Ryuji Sugita , Kiyokazu Tohma , Kazunari Yoshimoto , Keizou Miyata , Hiroshi Ryonai
发明人： Tatsuaki Ishida , Ryuji Sugita , Kiyokazu Tohma , Kazunari Yoshimoto , Keizou Miyata , Hiroshi Ryonai
IPC分类号： G11B586
CPC分类号： G11B5/64 , G11B5/59638 , G11B5/59655 , G11B5/855 , G11B5/865
摘要： A master information carrier comprises a substrate whose surface has an embossed pattern corresponding to an information signal. At least a surface of the protruding portion of the embossed pattern is made of a ferromagnetic material. A method for writing an information signal into a sheet or disk magnetic record medium with a ferromagnetic thin film or coating is performed by putting the surface of the magnetic record medium into contact with the master information carrier so as to write a magnetized pattern corresponding to the embossed pattern of the master information carrier into the magnetic record medium.

18. 发明授权

US5679410A Continuous fabrication of thin film magnetic recording medium with vacuum deposition 失效
标题翻译：连续制造具有真空沉积的薄膜磁记录介质
公开(公告)号：US5679410A
公开(公告)日：1997-10-21
申请号：US462690
申请日：1995-06-05
申请人： Ryuji Sugita , Kiyokazu Tohma , Tatsuaki Ishida , Kazunari Yoshimoto
发明人： Ryuji Sugita , Kiyokazu Tohma , Tatsuaki Ishida , Kazunari Yoshimoto
IPC分类号： C23C14/24 , C23C14/22 , C23C14/34 , C23C14/56 , G11B5/85 , C23C14/00 , C23C14/04
CPC分类号： G11B5/85 , C23C14/22 , C23C14/562
摘要： A thin film magnetic recording medium is manufactured with vacuum deposition or sputtering technique. One or more reflectors are provided between the substrate and an evaporation source around a path through which evaporated atoms travel onto a substrate. When a thin film is deposited on a substrate, the one or more reflectors are heated above a melting point of an evaporation material to reflect evaporated atoms arriving them. Thus, atoms reflected by the one or more reflectors also contribute to deposition of a thin film as well as evaporated atoms arriving directly from the evaporation source, and deposition efficiency is improved. Such a reflector is also used to limit a boundary or the path through which evaporated atoms travel onto a substrate. Then, a range of incident angles of evaporated atoms onto the substrate is kept the same for a long time on deposition, and characteristics of the thin film are stable.
摘要翻译：使用真空沉积或溅射技术制造薄膜磁记录介质。一个或多个反射器设置在基板和蒸发源之间的周围的蒸发原子行进到基板上的路径。当薄膜沉积在基底上时，将一个或多个反射器加热到蒸发材料的熔点之上，以反射到达它们的蒸发原子。因此，由一个或多个反射器反射的原子也有助于沉积薄膜以及从蒸发源直接到达的蒸发原子，并且提高了沉积效率。这样的反射器也用于限制蒸发的原子通过其移动到衬底上的边界或路径。然后，蒸镀原子在基板上的入射角度的范围在沉积时长时间保持相同，并且薄膜的特性是稳定的。

19. 发明授权

US5569523A Magnetic recording medium having a ferromagnetic thin film in which 70% to 90% of the total magnetic particles have residual magnetization vectors within .+-.10.degree. of the easy axis direction 失效
标题翻译：具有铁磁薄膜的磁记录介质，其中70％至90％的总磁性颗粒在易轴方向的+/- 10°内具有残余磁化矢量
公开(公告)号：US5569523A
公开(公告)日：1996-10-29
申请号：US395818
申请日：1995-02-28
申请人： Kiyokazu Thoma , Kazunari Yoshimoto , Ryuji Sugita , Tatsuaki Ishida
发明人： Kiyokazu Thoma , Kazunari Yoshimoto , Ryuji Sugita , Tatsuaki Ishida
IPC分类号： G11B5/64 , G11B5/84 , G11B5/85 , G11B5/66
CPC分类号： G11B5/656 , G11B5/64 , G11B5/84 , G11B5/85 , Y10S428/90 , Y10T428/2495 , Y10T428/265
摘要： A magnetic recording medium fabrication device includes a cooling drum around which a substrate runs while being cooled thereby, an ion gun arranged upstream to a vapor deposition station for kicking out particles absorbed on the plane of the substrate, a cooling body arranged between the cooling drum and ion gun for absorbing kicked out particles and a vapor deposition means for depositing a magnetic layer on the substrate at the vapor deposition station. The magnetic particles forming the magnetic layer that have residual magnetization vectors within .+-.10.degree. of the easy axis direction including the magnetic anisotropy of the medium are greater than or equal to 70% and less than or equal to 90% of the total amount of magnetic particles.
摘要翻译：一种磁记录介质制造装置，包括：冷却滚筒，基板在该冷却滚筒的同时冷却，在该冷却滚筒的同时被冷却;离子枪，布置在气相沉积站的上游，用于汲取在基板的平面上吸收的颗粒;冷却体，用于吸收被剔除的颗粒的离子枪和用于在气相沉积站上在基底上沉积磁性层的气相沉积装置。形成磁性层的磁性粒子在容易轴方向的+/- 10°以内的残留磁化强度包括介质的磁各向异性大于或等于总量的70％且小于或等于90％的磁性颗粒。

20. 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。

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