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1. 发明专利

JP2006244602A Magnetic recording and reproducing device and manufacturing method thereof 审中-公开
标题翻译：磁记录和再现设备及其制造方法
公开(公告)号：JP2006244602A
公开(公告)日：2006-09-14
申请号：JP2005058540
申请日：2005-03-03
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： ISHIDA TATSURO , HAMADA TAIZO , SAKAGUCHI MASAYA
IPC分类号： G11B21/10 , G11B5/012
摘要： PROBLEM TO BE SOLVED: To provide a magnetic recording and reproducing device where tracking precision can be improved by obtaining sufficient precision in positional detection of a magnetic head even in such a high-density area where a track pitch is shorter than 0.25 μm, and to provide a manufacturing method of the device.
SOLUTION: The device is provided with a process of previously recording a magnetization bit pattern corresponding to an information signal in a magnetic disk by bringing the magnetic disk into contact with the surface of a master information carrier having a shape pattern of ferromagnetic material corresponding to the information signal. The information signal recorded previously contains a servo signal 7 for tracking, and a magnetization transition area between bits in at least a part of the magnetization bit pattern corresponding to the servo signal 7 for tracking is curved with respect to the reproduction gap of the magnetic head loaded to the magnetic recording and reproducing device.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种磁记录和再现装置，其中即使在轨道间距小于0.25μm的高密度区域中，通过获得足够的磁头位置检测精度，可以提高跟踪精度，并提供该装置的制造方法。解决方案：该装置具有通过使磁盘与具有铁磁材料的形状图案的主信息载体的表面接触而将预先记录与信息信号相对应的磁化位模式的处理对应于信息信号。记录的信息信号包括用于跟踪的伺服信号7，并且与用于跟踪的伺服信号7对应的磁化位图案的至少一部分中的位之间的磁化转变区域相对于磁头的再现间隙而弯曲加载到磁记录和再现装置。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2003029424A Method of forming resist pattern and method of manufacturing master information carrier 有权
标题翻译：形成电阻图案的方法和制造主信息载体的方法
公开(公告)号：JP2003029424A
公开(公告)日：2003-01-29
申请号：JP2002091056
申请日：2002-03-28
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： YANAGI TERUMI , FURUMURA NOBUYUKI , ISHIDA TATSURO , MIYATA KEIZO
IPC分类号： G03F7/26 , G03F7/20 , G03F7/38 , G03F7/40 , G11B5/84
摘要： PROBLEM TO BE SOLVED: To solve the problems, such as the difficulty in venting of air near the center of a substrate and the occurrence of variation in resist pattern shapes by the infiltration of UV light encountered in the conventional method of bringing a resist film formed on the substrate and a mask into contact with each other and bringing both into tight contact with each other by evacuation from the outer peripheral part of the substrate, then exposing and developing both in a method of forming the resist patterns by a mask aligner.
SOLUTION: Hollow grooves 251 for venting are formed on the surface of the resist film 2 by using a photolithography technique and the mask 31 is brought into contact with projecting parts 252 of the resist film on both sides or circumferences of the hollow groups 251 for venting and is evacuated through the hollow groups 251 for venting, by which the adhesion property of the mask 31 and the projecting parts 252 of the resist film is enhanced. As a result, the infiltration of the light is prevented and the formation of the resist patterns 21 having the good recesses 253 is made possible.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了解决诸如在基板中心附近排出空气的困难和通过形成抗蚀剂膜的常规方法中遇到的UV光的渗透的抗蚀剂图案形状的变化的问题在基板和掩模之间彼此接触并且通过从基板的外周部分抽出而使它们彼此紧密接触，然后在通过掩模对准器形成抗蚀剂图案的方法中进行曝光和显影。解决方案：通过使用光刻技术在抗蚀剂膜2的表面上形成用于排气的空心槽251，并且掩模31与中空组251的两侧或周边的抗蚀剂膜的突出部分252接触以进行排气并且通过中空基团251排出以进行排气，由此增强了掩模31和抗蚀剂膜的突出部分252的粘合性能。结果，防止光的渗透，并且形成具有良好凹槽253的抗蚀剂图案21成为可能。

3. 发明专利

JP2002367164A Method of manufacturing magnetic recording medium and head for magnetization for manufacturing magnetic recording medium 有权
标题翻译：用于制造磁记录介质的磁记录介质和磁头制造方法
公开(公告)号：JP2002367164A
公开(公告)日：2002-12-20
申请号：JP2001172202
申请日：2001-06-07
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： ISHIDA TATSURO , HAMADA TAIZO , HASHI HIDEYUKI
IPC分类号： G11B5/325 , G11B5/127 , G11B5/23 , G11B5/84 , G11B5/86
摘要： PROBLEM TO BE SOLVED: To prevent the deterioration of regenerative signal quality which occurs depending upon various conditions in preformat recording or the admission of the phenomenon of an unknown cause that the quality described above changes unstably according to the places on a magnetic recording medium in a preformat recording technique using a master information carrier which is a novel technique relating to the preformat recording of the magnetic recording medium. SOLUTION: The method of manufacturing the magnetic recording medium by superposing the master information carrier 2 having the patterns of ferromagnetic thin films 11 formed to the shapes corresponding to prescribed information signals onto the disk-like magnetic recording medium 1 and magnetizing the patterns corresponding to the information signals of the master information carrier 2 by a head 6 for magnetization having a gap 6d formed by disposing a first magnetic core half body 6b and a second magnetic core half body 6c opposite to each other, thereby magnetically transferring the patterns corresponding to the information signals of the master information carrier 2 to the magnetic recording medium 1, in which the gap length of the head 6 for magnetization is so set as to be greater than in the position corresponding to the inner peripheral side in the position corresponding to the outer peripheral side of the magnetic recording medium 1.
摘要翻译：要解决的问题：为了防止根据预格式化记录中的各种条件而发生的再生信号质量的劣化或者导致上述质量的不明原因的现象根据磁记录介质中的位置不稳定地改变使用主信息载体的预格式化记录技术，该主信息载体是与磁记录介质的预格式化记录有关的新技术。解决方案：通过将具有形成为与规定信息信号相对应的形状的铁磁性薄膜11的图形的主信息载体2叠加在盘状磁记录介质1上并使对应于通过设置相互相对的第一磁芯半体6b和第二磁芯半体6c形成的具有间隙6d的磁化头6的主信息载体2的信息信号，从而磁性地传递与信息对应的图案主信息载体2到磁记录介质1的信号，其中用于磁化的磁头6的间隙长度被设定为大于在对应于外周边的位置的内周侧的位置磁记录介质1的一侧。

4. 发明专利

JP2002367137A Master information carrier and manufacturing method for magnetic disk using the same 有权
标题翻译：使用它的磁盘的主信息载体和制造方法
公开(公告)号：JP2002367137A
公开(公告)日：2002-12-20
申请号：JP2001173574
申请日：2001-06-08
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： ISHIDA TATSURO , MATSUOKA KAORU , TOMA KIYOKAZU , FURUMURA NOBUYUKI
IPC分类号： G11B5/65 , G11B5/84 , G11B5/86
摘要： PROBLEM TO BE SOLVED: To provide a master information carrier by which high density information can be magnetically transferred uniformly and stably to a magnetic recording medium.
SOLUTION: In the master information carrier 2 wherein a magnetic section having the pattern corresponding to the information and consisting of a ferromagnetic thin film is provided onto a transfer surface for magnetically transferring the information to the magnetic recording medium 1, the film thickness on the outer peripheral side is thicker than the film thickness on the inner peripheral side with respect to the ferromagnetic thin film.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种能够将高密度信息均匀且稳定地磁性传递到磁记录介质的主信息载体。解决方案：在主信息载体2中，其中具有与信息对应的图案的磁性部分由铁磁性薄膜构成，并且将磁信号传送到磁记录介质1的转印面上，外周侧相对于铁磁性薄膜比内周侧的膜厚厚。

5. 发明专利

JP2002367134A Master information carrier 审中-公开
标题翻译：主信息载体
公开(公告)号：JP2002367134A
公开(公告)日：2002-12-20
申请号：JP2001169488
申请日：2001-06-05
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： IWANO YASUHIRO , FURUMURA NOBUYUKI , ISHIDA TATSURO
IPC分类号： G11B5/64 , G11B5/86
摘要： PROBLEM TO BE SOLVED: To provide a master information carrier having ferromagnetic material characteristics satisfactorily excellent in magnetic recording performance to a high coercive force magnetic recording medium, in a magnetic recording technology using the master information carrier concerned with servo track recording of a disk like magnetic recording medium. SOLUTION: The master information carrier is formed by forming a ferromagnetic thin film having the pattern of an information signal to be magnetically transferred to a magnetic recording medium on the surface of a non-magnetic base body and the ferromagnetic thin film is constituted so as to have >=1.8 T saturation magnetic flux density. Even when the magnetic recording medium having high coercive force is aimed at the magnetic transfer, the leakage of the magnetic flux at the end part of the ferromagnetic thin film can be avoided and saturation magnetization inversion by a recording magnetic field can be generated by satisfactorily heightening the recording magnetic field limitedly at a right overhead part of the part where the ferromagnetic thin film does not exist. Thus, effective and quality magnetic transfer of the information signal can be realized even to the recent high coercive force magnetic recording medium.
摘要翻译：要解决的问题：为了提供具有令人满意地优良的磁记录性能的铁磁材料特性的高矫顽磁力磁记录介质的主信息载体，在使用与磁盘磁盘的伺服记录相关的主信息载体的磁记录技术中记录介质。解决方案：主信息载体通过形成具有磁性传递到非磁性体的表面上的磁记录介质的信息信号图案的铁磁性薄膜，并且铁磁薄膜构成为具有> = 1.8T饱和磁通密度。即使具有高矫顽力的磁记录介质针对磁传递，也可以避免铁磁性薄膜端部的磁通量的泄漏，并且能够通过令人满意地提高产生记录磁场的饱和磁化反转记录磁场有限地位于不存在铁磁性薄膜的部分的右上方部分。因此，即使对最近的高矫顽力磁记录介质也可以实现信息信号的有效质量的磁传递。

6. 发明专利

JP2005100611A Magnetic disk unit, method for determining data track pitch, and self-servo write method 有权
标题翻译：磁盘单元，用于确定数据轨迹的方法和自伺服写入方法
公开(公告)号：JP2005100611A
公开(公告)日：2005-04-14
申请号：JP2004257105
申请日：2004-09-03
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： MIYATA KEIZO , TAKASO HIROSHI , KIMURA AKIRA , ISHIDA TATSURO
IPC分类号： G11B21/10
摘要： PROBLEM TO BE SOLVED: To provide a method for highly precisely calculating an optimum data track pitch and to provide a self-servo writing method for recording a servo signal into a recording region of a magnetic disk at a head feeding pitch decided based on the method.
SOLUTION: A self-servo reference signal including a timing pattern and an oblique phase pattern is previously and magnetically transferred and recorded in the magnetic disk 1. A phase difference detection part 13 detects a phase difference between the two patterns and detects a position of the magnetic head 2. A burst signal created from a recording signal creating part 14 is recorded in a region where a self-servo reference signal is not recorded in the magnetic disk 1. A track pitch calculating part 11 measures a relation between reproduction output of the burst signal, which is detected in a reproduction signal processing part 12, and the phase difference detected in the phase difference detection part 13, and calculates the optimum data track pitch. Calculation is performed at every division zone in a radius direction of the magnetic disk 1. A calculation result is accumulated in a memory 15, and the servo signals are sequentially recorded by the number of recording tracks in accordance with the head feeding pitch calculated based on the optimum data track pitch.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于高度精确地计算最佳数据轨道间距的方法，并且提供一种自动伺服写入方法，用于以基于决定的头馈送间距将伺服信号记录到磁盘的记录区域中对方法。解决方案：包括定时模式和倾斜相位图案的自我伺服参考信号被预先磁性传递并记录在磁盘1中。相位差检测部分13检测两个图案之间的相位差，并检测一个从记录信号产生部分14产生的突发信号被记录在自伺服参考信号未被记录在磁盘1中的区域中。轨道间距计算部分11测量再现之间的关系在再现信号处理部分12中检测到的脉冲串信号的输出和在相位差检测部分13中检测的相位差，并且计算最佳数据轨迹间距。在磁盘1的半径方向上的每个划分区域进行计算。计算结果累积在存储器15中，并且根据基于最佳数据轨道间距。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2003045025A Magnetic transfer device 有权
标题翻译：磁性传输装置
公开(公告)号：JP2003045025A
公开(公告)日：2003-02-14
申请号：JP2002168781
申请日：2002-06-10
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： HASHI HIDEYUKI , HAMADA TAIZO , MAKABE TOSHIO , TOMA KIYOKAZU , ISHIDA TATSURO , BAN YASUAKI , MIYATA KEIZO
IPC分类号： G11B5/86
摘要： PROBLEM TO BE SOLVED: To provide a magnetic transfer device for carrying out accurate magnetic transfer in order to manufacture a high-quality disk where the size of a very small projection formed during magnetic transfer is reduced so as not to cause no problems, and no errors occur during recording/reproducing.
SOLUTION: By executing the step of magnetic transfer for a magnetic disk after the operation of bonding and pressure-feeding between a dummy disk and a magnetic transfer master, the abnormal projection on the surface of the magnetic transfer master is smoothed, and a foreign object is removed.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种用于执行精确磁传递的磁转移装置，以便制造在磁转移期间形成的非常小的突起的尺寸减小的高品质盘，从而不引起任何问题在录制/再现期间发生错误。解决方案：通过在虚拟盘和磁转移母盘之间的接合和加压操作之后执行用于磁盘的磁转移步骤，使磁转移母盘的表面上的异常投影平滑，并且异物被删除。

8. 发明专利

JP2003022525A Manufacturing method for magnetic recording medium 审中-公开
标题翻译：磁记录介质的制造方法
公开(公告)号：JP2003022525A
公开(公告)日：2003-01-24
申请号：JP2001206906
申请日：2001-07-06
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： YOSHIMOTO KAZUYA , ISHIDA TATSURO , TOMA KIYOKAZU
IPC分类号： G11B5/65 , G11B5/84
摘要： PROBLEM TO BE SOLVED: To form a magnetic recording medium having a structure wherein information recording sections are separately independent and essentially free from rugged part on the surface thereof without using fine working technique.
SOLUTION: After a magnetic film 2 consisting of a metastable phase having reduced residual magnetization is deposited on a non-magnetic substrate 1, the information recording sections 4 and separating zones 5 separating the information recording sections are formed by locally heating the areas where the information recording sections for accumulating information are to be formed by a heating means 3 to increase magnetization.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了形成具有这样的结构的磁记录介质，其中信息记录部分在其表面上独立且基本上没有粗糙部分，而不使用精细加工技术。解决方案：将由具有降低的剩余磁化强度的亚稳相组成的磁膜2沉积在非磁性基板1上之后，分离信息记录部分的信息记录部分4和分离区5通过局部加热信息用于积累信息的记录部分将由加热装置3形成以增加磁化强度。

9. 发明专利

JP2002367163A Method of manufacturing magnetic recording medium and head for magnetization for manufacturing magnetic recording medium 有权
标题翻译：用于制造磁记录介质的磁记录介质和磁头制造方法
公开(公告)号：JP2002367163A
公开(公告)日：2002-12-20
申请号：JP2001172201
申请日：2001-06-07
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： ISHIDA TATSURO , HAMADA TAIZO , HASHI HIDEYUKI
IPC分类号： G11B5/325 , G11B5/127 , G11B5/187 , G11B5/84 , G11B5/86
摘要： PROBLEM TO BE SOLVED: To prevent the deterioration of regenerative signal quality which occurs depending upon various conditions in preformat recording or the admission of the phenomenon of an unknown cause that the quality described above changes unstably according to the places on a magnetic recording medium in a preformat recording technique using a master information carrier which is a novel technique relating to the preformat recording of the magnetic recording medium. SOLUTION: The method of manufacturing the magnetic recording medium by superposing the master information carrier 2 having the patterns of ferromagnetic thin films 11 formed to the shapes corresponding to prescribed information signals onto the disk-like magnetic recording medium 1 and magnetizing the patterns corresponding to the information signals of the master information carrier 2 by a head 6 for magnetization, thereby magnetically transferring the patterns corresponding to the information signals of the master information carrier 2 to the magnetic recording medium 1, in which the separating size of the head 6 for magnetization and the master information carrier 2 is so set that the separating size D0 on the outer peripheral side of the magnetic recording medium 1 is greater than the separating size D1 on the inner peripheral side.
摘要翻译：要解决的问题：为了防止根据预格式化记录中的各种条件而发生的再生信号质量的劣化或者导致上述质量的不明原因的现象根据磁记录介质中的位置不稳定地改变使用主信息载体的预格式化记录技术，该主信息载体是与磁记录介质的预格式化记录有关的新技术。解决方案：通过将具有形成为与规定信息信号相对应的形状的铁磁性薄膜11的图形的主信息载体2叠加在盘状磁记录介质1上并使对应于通过磁头6进行磁化的主信息载体2的信息信号，从而将与主信息载体2的信息信号相对应的图案磁性传送到磁记录介质1，其中用于磁化的磁头6的分离尺寸和主信息载体2被设定为使得磁记录介质1的外周侧的分离尺寸D0大于内周侧的分离尺寸D1。

10. 发明专利

JP2006085854A Manufacturing method for in-plane magnetic recording medium, and magnetic recording/reproducing apparatus 审中-公开
标题翻译：平面磁记录介质的制造方法和磁记录/再现装置
公开(公告)号：JP2006085854A
公开(公告)日：2006-03-30
申请号：JP2004271081
申请日：2004-09-17
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： IWANO YASUHIRO , SAKAGUCHI MASAYA , ISHIDA TATSURO
IPC分类号： G11B5/65 , G11B5/855 , G11B5/86 , G11B21/10
摘要： PROBLEM TO BE SOLVED: To prevent a reproduction signal detecting error caused by an output deterioration in a reproduced waveform in a pre-format recording operation using a master information carrier, which is a new technology regarding the pre-format recording of a magnetic recording medium.
SOLUTION: The in-plane magnetic recording medium causing no output deterioration in the reproduced waveform can be manufactured by setting length of a ferromagnetic thin film on the master information carrier corresponding to length between a pair of magnetization transition areas adjacent to each other in the magnetization information recorded on the in-plane magnetic recording medium to be longer than length between the magnetization transition areas desired as a recording signal to the in-plane magnetic recording medium.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了防止在使用主信息载体的预格式记录操作中由再现波形的输出恶化引起的再现信号检测错误，该主信息载体是关于预格式记录的新技术磁记录介质。解决方案：可以通过将主磁信号载体上的铁磁性薄膜的长度设定为与彼此相邻的一对磁化过渡区域之间的长度相对应来制造在再现波形中不产生输出劣化的平面内磁记录介质记录在平面内磁记录介质上的磁化信息要比作为记录信号所需的磁化转变区域之间的长度长于面内磁记录介质。版权所有（C）2006，JPO＆NCIPI

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