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1. 发明专利

JP2006120285A Magnetic recording medium and its manufacturing method 审中-公开
标题翻译：磁记录介质及其制造方法
公开(公告)号：JP2006120285A
公开(公告)日：2006-05-11
申请号：JP2004309428
申请日：2004-10-25
申请人： Fuji Photo Film Co Ltd , 富士写真フイルム株式会社
发明人： NAGAO MAKOTO , NISHIKAWA SHOICHI , USUKI KAZUYUKI
IPC分类号： G11B5/72 , G11B5/725 , G11B5/84 , G11B5/86
摘要： PROBLEM TO BE SOLVED: To provide a magnetic recording medium of excellent quality which can perform production efficiently in recording a servo signal etc. by magnetic transfer and to provide its manufacturing method.
SOLUTION: The magnetic recording medium 2 is equipped with; a support object 21; a magnetic layer 22 for magnetic recording and reproducing; a protection layer 23 consisting of C-H or C-H-N; and a lubricant layer 24 applied to a surface after giving physical cleaning to the protection layer 23. After cleaning and before application of the lubricant layer, magnetization patterns are recorded on the magnetic layer 22 by magnetic transfer which applies a magnetic field for transfer in a superposed state with a master carrier 3.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种优质的磁记录介质，其可以通过磁转移有效地进行记录伺服信号等的生产并提供其制造方法。
解决方案：磁记录介质2配备有; 支撑对象21; 用于磁记录和再现的磁性层22; 由C-H或C-H-N组成的保护层23; 以及在对保护层23进行物理清洁之后施加到表面的润滑剂层24.在清洁之后并且在施加润滑剂层之前，磁化图案通过磁性传递记录在磁性层22上，该磁性转移将磁场传递到（C）2006，JPO＆NCIPI

2. 发明专利

JP2006120266A Magnetic transfer method, magnetic recording medium, and magnetic recording apparatus 审中-公开
标题翻译：磁性传输方法，磁记录介质和磁记录装置
公开(公告)号：JP2006120266A
公开(公告)日：2006-05-11
申请号：JP2004308480
申请日：2004-10-22
申请人： Fuji Photo Film Co Ltd , 富士写真フイルム株式会社
发明人： WAKAMATSU TETSUSHI , NAGAO MAKOTO , ARAKI MINORU , KOMATSU KAZUNORI
IPC分类号： G11B5/86 , G11B5/65 , G11B5/66 , G11B5/82
摘要： PROBLEM TO BE SOLVED: To perform the accurate transfer of a magnetic pattern by regulating a permissible range of the application direction of a magnetic field for transfer when magnetic transfer is performed. SOLUTION: This magnetic transfer method includes: a step for applying a magnetic field in the circumferential direction of a disk to which the magnetic pattern is transferred (transfer disk) to initially DC-magnetize the transfer disk in the circumferential direction; a step for closely sticking the initially DC-magnetized transfer disk and a master disk having the magnetic pattern to each other; and a step for performing magnetic transfer so that the magnetic field intensity of the magnetic field in the circumferential direction vertical to the disk surface is 0.40 times as high as the magnetic field intensity thereof parallel to the disk surface or less when a magnetic field generating means is provided and a magnetic field is added to the transfer disk and the master disk in the circumferential direction while the transfer disk and the master disk in a closely stuck state are moved relatively to the magnetic field generating means to transfer the magnetic pattern of the master disk to the transfer disk. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过在执行磁转移时通过调节用于传送的磁场的施加方向的允许范围来执行磁图案的精确传送。该磁转移方法包括：在磁性图案转印的盘的圆周方向上施加磁场的步骤（转印盘），以在周向上初始地直接磁化转印盘; 将初始DC磁化转印盘和具有磁性图案的母盘彼此紧密粘合的步骤; 以及进行磁转移的步骤，使得与磁盘表面垂直的圆周方向上的磁场的磁场强度是其平行于磁盘表面的磁场强度的0.40倍以下，当磁场产生装置并且在紧密状态的传送盘和母盘相对于磁场发生装置移动，以传递主体的磁图案，并且在圆周方向上将磁场添加到传送盘和主盘磁盘到传输磁盘。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2005011459A Method for magnetizing magnetic disk medium, and selective magnetizing medium used for the method 审中-公开
标题翻译：用于磁化磁盘介质的方法和用于该方法的选择性磁化介质
公开(公告)号：JP2005011459A
公开(公告)日：2005-01-13
申请号：JP2003176212
申请日：2003-06-20
申请人： Fuji Photo Film Co Ltd , 富士写真フイルム株式会社
发明人： NAGAO MAKOTO , KOMATSU KAZUNORI
IPC分类号： G11B5/64 , G11B5/02 , G11B5/82 , G11B5/86
摘要： PROBLEM TO BE SOLVED: To magnetize the perpendicular magnetic layers of the projected and recessed parts of a magnetic disk medium equipped with the perpendicular magnetic layers having patterned recessed and projected surfaces, in reverse directions to each other.
SOLUTION: The perpendicular magnetic layer 3 of a magnetic disk medium 1 equipped with the perpendicular magnetic layer 3 having recessed and projected surfaces is uniformly magnetized in a predetermined direction initially. Then, a magnetic field Hdu is applied in a reverse direction to the initial magnetization in a state in which the flat and smooth surface of a selective magnetizing medium 100 equipped with a magnetic layer 12 having a flat and smooth surface is in close contact with the upper surface of the projected part 5 of the magnetic disk medium 1, Thus, only the magnetization of the projected part 5 of the magnetic disk medium 1 is reversed.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：将具有图案化凹凸表面的垂直磁性层的磁盘介质的投影凹陷部分的垂直磁性层彼此反向磁化。解决方案：装备有具有凹凸表面的垂直磁性层3的磁盘介质1的垂直磁性层3最初沿预定方向均匀地磁化。然后，在具有平坦且光滑的表面的磁性层12的选择性磁化介质100的平坦且光滑的表面紧密接触的状态下，以与初始磁化相反的方向施加磁场Hdu 磁盘介质1的突出部分5的上表面。因此，只有磁盘介质1的突出部分5的磁化反转。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2004110875A Master carrier for magnetic transfer 审中-公开
公开(公告)号：JP2004110875A
公开(公告)日：2004-04-08
申请号：JP2002268432
申请日：2002-09-13
申请人： Fuji Photo Film Co Ltd , 富士写真フイルム株式会社
发明人： SUGITA RYUJI , NISHIKAWA SHOICHI , NAGAO MAKOTO
IPC分类号： G11B5/65 , G11B5/667 , G11B5/73 , G11B5/86
摘要： PROBLEM TO BE SOLVED: To provide a master carrier for magnetic transfer having fine projecting and recessed pattern wherein a magnetic layer is formed at both a projecting part and a recessed part and capable of performing magnetic transfer of high quality by cutting of the magnetic coupling between the magnetic layer of the projecting part and the magnetic layer of the recessed part, when magnetic transfer is performed by closely sticking the master carrier to a slave medium.
SOLUTION: The master carrier for magnetic transfer is provided with a substrate 31 having the projecting and recessed pattern corresponding to the information to be transferred to the slave medium and the magnetic layer 32 formed on the projecting and recessed pattern of the substrate 31. The length L in the track direction of a projecting part 31a is ≤4 μm, the thickness t of a recessed part magnetic layer 32b is thinner than the depth d of a recessed part 31b (t

5. 发明专利

JP2003067993A Information recording medium 审中-公开
标题翻译：信息记录媒体
公开(公告)号：JP2003067993A
公开(公告)日：2003-03-07
申请号：JP2001256775
申请日：2001-08-27
申请人： Fuji Photo Film Co Ltd , 富士写真フイルム株式会社
发明人： USUKI KAZUYUKI , NISHIKAWA SHOICHI , NAGAO MAKOTO
IPC分类号： G11B5/65 , G11B11/105
摘要： PROBLEM TO BE SOLVED: To provide a replaceable information recording medium which can be manufactured at a low cost, and has a large storage capacity and is able to stabilize the head run even when it is disposed close to the poles on a recording medium.
SOLUTION: This magneto-optical disk 10 consists of a base plate 14, which is a flexible disk consisting of a macromolecule. On this plate, following layers and films are laminate in order: a base layer 15 to improve the recording property of a recording film, a magnetic recording layer 16 consisting of rare-earth element transition metal alloys to magnetically record information, a protection layer 18 to keep the magnetic recording layer 16 from degrading or wearing, and a lubrication film 20 to improve the run durability and corrosion resistance by applying lubricant.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供可以以低成本制造并且具有大的存储容量并且即使当其靠近记录介质上的极设置时也能够稳定头部运行的可更换信息记录介质。解决方案：该磁光盘10由基板14组成，底板14是由大分子组成的柔性盘。在该板上，依次层叠以下层和薄膜：提高记录膜的记录性能的基底层15，由稀土元素过渡金属合金构成的磁记录层16磁记录信息，保护层18 以防止磁记录层16降解或磨损，以及润滑膜20，以通过施加润滑剂来提高运行耐久性和耐腐蚀性。

6. 发明专利

JP2001143258A MAGNETIC TRANSFER METHOD 失效
公开(公告)号：JP2001143258A
公开(公告)日：2001-05-25
申请号：JP31996299
申请日：1999-11-10
申请人： FUJI PHOTO FILM CO LTD , SUGITA RYUJI
发明人： NISHIKAWA SHOICHI , SUGITA RYUJI , NAGAO MAKOTO
IPC分类号： G11B5/86
摘要： PROBLEM TO BE SOLVED: To transfer a transfer pattern of high quality from a master carrier to a slave medium by magnetic transfer. SOLUTION: The master carrier for magnetic transfer where a magnetic layer is formed in a part corresponding to an information signal on the surface of a substrate and the slave medium to which the pattern is to be transferred are used, and the slave medium is preliminarily initially magnetized by DC in a track direction, and the master carrier for magnetic transfer and the slave medium initially magnetized by DC are brought into close contact with each other, and a magnetic field for transfer is applied in a track direction opposite to the direction of initial DC magnetization on the slave surface to perform magnetic transfer. In this case, a width Wm of the magnetic layer formed on the master carrier and a width Ws of magnetization on the magnetic layer of the slave medium after magnetic transfer are within a range of 1.02

7. 发明专利

JP2001101648A FLOPPY DISK AND MAGNETIC RECORDING SYSTEM USING IT 失效
公开(公告)号：JP2001101648A
公开(公告)日：2001-04-13
申请号：JP27264199
申请日：1999-09-27
申请人： FUJI PHOTO FILM CO LTD
发明人： USUKI KAZUYUKI , NISHIKAWA SHOICHI , NAGAO MAKOTO
IPC分类号： G11B5/733 , G11B5/64 , G11B5/73
摘要： PROBLEM TO BE SOLVED: To provide a floppy disk and a magnetic recording system with high recording density. SOLUTION: The floppy disk is constituted such that a ferromagnetic metallic thin film, a protective film and a lubricating film are laminated on both sides of a flexible non-magnetic support and that minute projections having a diameter of 30-200 nm and a height of 10-70 nm are provided on the surface at a density of 1-100 pieces per one square μm; and the magnetic recording system is such that both front and rear sides of the floppy disk are held between magnetic head arms provided with a slider each of which has an MR head at the tip end and that, while the floppy disk is rotated at the number of revolution of 2,000 rpm or higher, a slider is made to run with the floppy disk for recording and reproduction.

8. 发明专利

JP2001014671A MAGNETIC TRANSFER METHOD AND MAGNETIC TRANSFER DEVICE 失效
公开(公告)号：JP2001014671A
公开(公告)日：2001-01-19
申请号：JP2000090270
申请日：2000-03-29
申请人： FUJI PHOTO FILM CO LTD
发明人： KOMATSU KAZUNORI , NAGAO MAKOTO , NISHIKAWA SHOICHI
IPC分类号： G11B5/86 , G11B5/85
摘要： PROBLEM TO BE SOLVED: To transfer high-grade transfer patterns from a master carrier for magnetic transfer to a slave medium regardless of the positions of magnetic patterns by magnetic transfer. SOLUTION: This magnetic transfer method comprised of adjacently disposing two pieces of permanent magnets 8a and 8b having a magnetic field symmetrical with the axes of magnetic poles in such a manner that the directions of the magnetic poles of the each other's permanent magnets 8a and 8b are parallel and are reverse to each other and that the axes of the magnetic poles are perpendicular to the slave medium surface, rotating the slave medium 4 or the two permanent magnets 8a and 8b in the track direction and previously causing the initial DC magnetization of slave medium magnetization in the track direction by impression of the magnetic field to the track direction of the slave medium surface, then bringing a master carrier for magnetic transfer and the slave medium 4 subjected to the initial DC magnetization into tight contact with each other and executing the magnetic transfer by impressing the magnetic field for transfer of the direction opposite to the initial DC magnetization direction of the slave medium surface in the track direction.

9. 发明专利

JP2001006150A MAGNETIC RECORDING MEDIUM 失效
公开(公告)号：JP2001006150A
公开(公告)日：2001-01-12
申请号：JP17418599
申请日：1999-06-21
申请人： FUJI PHOTO FILM CO LTD
发明人： EJIRI KIYOMI , NAGAO MAKOTO , MASAKI KOICHI
IPC分类号： G11B5/716 , G11B5/706
摘要： PROBLEM TO BE SOLVED: To provide an application type keeper medium, and to provide a magnetic recording medium whose electromagnetic conversion characteristics, especially, recording characteristics at the time of magnetic recording using short recording wavelength are made excellent, and whose reproduction output can be made high, and whose productivity and keeping quality can be made excellent. SOLUTION: In a magnetic recording medium in which a base layer containing non-magnetic powder and bonding agent is formed on a non-magnetic flexible supporting body, and magnetic layers in not less than two layers are formed on the base layer, at least one layer of the magnetic layers in not less than two layers is constituted as a hard magnetic layer whose Hc formed by diffusing ferromagnetic powder in bonding agent is 8000e or more, and at least one layer of the magnetic layers in not less than two layers is constituted as a soft magnetic layer whose magnetic permeability is high.

10. 发明专利

JPH08171715A MAGNETIC RECORDING MEDIUM AND ITS PRODUCTION 失效
公开(公告)号：JPH08171715A
公开(公告)日：1996-07-02
申请号：JP33373694
申请日：1994-12-19
申请人： FUJI PHOTO FILM CO LTD
发明人： NAGAO MAKOTO , YOSHIDA SATOSHI , NAKADA JUNJI
IPC分类号： G11B5/66 , G11B5/65 , G11B5/73 , G11B5/738 , G11B5/85 , G11B5/851
摘要： PURPOSE: To obtain a vapor deposited tape of a high density and large capacity having excellent crack resistance and further, excellent weatherability, C/N and curlability. CONSTITUTION: This magnetic recording medium is obtd. by forming a magnetic layer consisting of a ferromagnetic metallic thin film by a diagonal vapor deposition method on a nonmagnetic substrate. This nonmagnetic substrate has microprojections 2 thereon. A ground surface layer consisting of a metallic film mainly composed of Cu is formed between the nonmagnetic substrate and the magnetic layer. A ground surface layer consisting of a metallic film mainly composed of Cu is formed by sputtering on the nonmagnetic substrate having the microprojections described above and thereafter, a ferromagnetic metal is diagonally deposited by evaporation on the ground surface layer.

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