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71. 发明申请

US20120206834A1 METHOD FOR PRODUCING MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING REPLAYING DEVICE 有权
标题翻译：用于制造磁记录介质和磁记录重放装置的方法
公开(公告)号：US20120206834A1
公开(公告)日：2012-08-16
申请号：US13502970
申请日：2010-10-20
申请人： Manabu Ueda , Yuji Murakami , Akira Sakawaki , Zhipeng Wang
发明人： Manabu Ueda , Yuji Murakami , Akira Sakawaki , Zhipeng Wang
IPC分类号： G11B5/52 , G11B5/842
CPC分类号： G11B5/855 , B05D1/32
摘要： A production method of a magnetic recording medium of the present invention includes: a step of forming a magnetic layer (2) on a non-magnetic substrate (1); a step of forming a dissoluble layer (3) on the magnetic layer (2); a step of forming a mask layer (4) on the dissoluble layer (3); a step of patterning the dissoluble layer (3) and the mask layer (4) to a shape corresponding to a magnetic recording pattern (2a); a step of performing a partial modification or removal of the magnetic layer (2) by use of the patterned mask layer (4); and a step of dissolving the dissoluble layer (3) with a chemical agent so as to remove the dissoluble layer (3) together with the mask layer (4) formed thereon from the top of the magnetic layer (2), wherein the magnetic recording medium has the magnetically-separated magnetic recording pattern (2a).
摘要翻译：本发明的磁记录介质的制造方法包括：在非磁性基板（1）上形成磁性层（2）的工序; 在所述磁性层（2）上形成可溶性层（3）的步骤; 在所述溶解层（3）上形成掩模层（4）的步骤; 将可溶性层（3）和掩模层（4）图案化成与磁记录图案（2a）相对应的形状的步骤; 通过使用图案化掩模层（4）进行部分修改或去除磁性层（2）的步骤; 以及通过化学试剂溶解所述溶解层（3）以从所述磁性层（2）的顶部与形成在其上的掩模层（4）一起除去所述溶解层（3）的步骤，其中所述磁记录介质具有磁分离的磁记录图案（2a）。

72. 发明授权

US08158215B2 Magnetic recording media and method of manufacturing the same, and magnetic recording/reproduction device 失效
标题翻译：磁记录介质及其制造方法以及磁记录/再现装置
公开(公告)号：US08158215B2
公开(公告)日：2012-04-17
申请号：US12441770
申请日：2007-08-16
申请人： Masato Fukushima , Akira Sakawaki
发明人： Masato Fukushima , Akira Sakawaki
IPC分类号： G11B5/00 , G11B5/74
CPC分类号： G11B5/855
摘要： A method of manufacturing magnetic recording media with a high areal recording density, in which there write bleeding during magnetic recording is eliminated by reducing insofar as possible the coercive force and remanent magnetization in areas between magnetic tracks, is provided. The method of manufacture can produce magnetic recording media 10, in which a magnetic layer 3 is provided on at least one surface of a nonmagnetic substrate 1, and a magnetically separated magnetic pattern 3a is formed in this magnetic layer 3; by implanting atoms into the magnetic layer 3 with a uniform distribution in the thickness direction of the magnetic layer 3, and partially rendering nonmagnetic the magnetic layer 3, nonmagnetic portions 5 which magnetically separate the magnetic pattern 3a are formed.
摘要翻译：制造具有高磁记录密度的磁记录介质的方法，其中通过尽可能地减少在磁迹之间的区域中的矫顽力和残余磁化来消除在磁记录期间写入渗漏的方法。制造方法可以制造在非磁性基板1的至少一个表面上设置磁性层3的磁记录介质10，并且在该磁性层3中形成磁分离的磁性图案3a; 通过在磁性层3的厚度方向上以均匀的分布将原子注入到磁性层3中，并且部分地使磁性层3变得非磁性，形成磁性分离磁性图案3a的非磁性部分5。

73. 发明申请

US20110007414A1 MAGNETIC RECORDING MEDIUM, METHOD OF MANUFACTURING MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING/REPRODUCING APPARATUS 有权
标题翻译：磁记录介质，制造磁记录介质的方法和磁记录/再现装置
公开(公告)号：US20110007414A1
公开(公告)日：2011-01-13
申请号：US12918973
申请日：2009-02-16
申请人： Masato Fukushima , Akira Sakawaki , Akira Yamane
发明人： Masato Fukushima , Akira Sakawaki , Akira Yamane
IPC分类号： G11B20/10 , G11B5/84 , G11B5/02 , G11B5/62
CPC分类号： G11B5/855 , B82Y10/00 , G11B5/743 , G11B5/82
摘要： Disclosed is a method of manufacturing a magnetic recording medium capable of effectively and reliably removing foreign materials on the surface of a magnetic recording medium, preventing a mask layer from remaining on the surface of the magnetic recording medium, and forming the pattern of a magnetic layer with high productivity. The method of manufacturing a magnetic recording medium includes: a step of forming a magnetic layer on a non-magnetic substrate; a step of forming a mask layer on the magnetic layer; a step of patterning the mask layer to form a mask pattern; a step of forming a magnetic recording pattern on the magnetic layer using the mask pattern; a step of burnishing the surface of the mask pattern with an abrasive; and a step of removing the mask pattern.
摘要翻译：公开了一种制造能够有效且可靠地去除磁记录介质表面上的异物的磁记录介质的方法，防止掩模层残留在磁记录介质的表面上，并形成磁层的图案生产力高。制造磁记录介质的方法包括：在非磁性基板上形成磁性层的步骤; 在所述磁性层上形成掩模层的步骤; 图案化掩模层以形成掩模图案的步骤; 使用掩模图案在磁性层上形成磁记录图案的步骤; 用研磨剂抛光掩模图案的表面的步骤; 以及去除掩模图案的步骤。

74. 发明申请

US20110003176A1 PROCESS FOR FORMING CONCAVO-CONVEX PATTERNS, AND PROCESS FOR MANUFACTURING MAGNETIC RECORDING MEDIA USING THE SAME 审中-公开
标题翻译：形成凹凸图案的方法以及使用该方法制造磁记录介质的方法
公开(公告)号：US20110003176A1
公开(公告)日：2011-01-06
申请号：US12865649
申请日：2009-01-28
申请人： Naoyuki Imai , Katsutoshi Morinaka , Hiroshi Uchida , Akira Sakawaki , Masato Fukushima
发明人： Naoyuki Imai , Katsutoshi Morinaka , Hiroshi Uchida , Akira Sakawaki , Masato Fukushima
IPC分类号： G11B5/84 , B05D5/00 , B29C59/02
CPC分类号： G11B5/855
摘要： An object of the present invention is to provide a process for forming concavo-convex patterns which uses a resist-forming material having excellent oxygen etching resistance and long working life and which enables to carry out the imprinting (mold pressing) with good rectangular shape properties at normal temperature.The process for forming a concavo-convex pattern of the present invention comprises a step (1) of applying a solution containing a silsesquioxane compound of Composition Formula (A) below to a surface of a workpiece to form a thin film, a step (2) of pressing a stamper having a concavo-convex pattern to the thin film; and a step (3) of separating the stamper from the thin film; R1R2Si2O3 (A) wherein R1 and R2 are each independently a specific group.
摘要翻译：本发明的目的是提供一种形成凹凸图案的方法，其使用具有优异的耐氧蚀刻性和长使用寿命的抗蚀剂形成材料，并且能够进行具有良好矩形形状性能的压印（模压）在常温下。形成本发明的凹凸图案的方法包括将含有下述组合式（A）的倍半硅氧烷化合物的溶液施加到工件表面以形成薄膜的步骤（1），步骤（2））将具有凹凸图案的压模按压到所述薄膜上; 以及将压模与薄膜分离的工序（3） R1R2Si2O3（A）其中R1和R2各自独立地为特定基团。

75. 发明申请

US20100284108A1 PROCESS FOR PRODUCING MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING AND REPRODUCING APPARATUS 失效
标题翻译：用于制造磁记录介质和磁记录和再现装置的方法
公开(公告)号：US20100284108A1
公开(公告)日：2010-11-11
申请号：US12812539
申请日：2009-01-09
申请人： Masato Fukushima , Akira Sakawaki
发明人： Masato Fukushima , Akira Sakawaki
IPC分类号： G11B21/02 , G11B5/84
CPC分类号： G11B5/855 , H01F41/34
摘要： A method for producing a magnetic recording medium having a magnetically partitioned magnetic recording pattern, comprising a step of forming a magnetic layer contains 0.5-6 atomic % of an oxide on a non-magnetic substrate; and a step of exposing regions of the magnetic layer, which magnetically partition the magnetic recording pattern, to a reactive plasma or reactive ion. The magnetic layer preferably has a non-granular structure, and in-plane orientated. After the step of exposure of the magnetic layer to a reactive plasma or reactive ion, a surface at least in said regions of magnetic layer having been exposed to the reactive plasma or reactive ion is preferably irradiated with an inert gas. Thus, a magnetic recording medium having a magnetic recording pattern with a high precision, and having high electromagnetic conversion characteristics and high recording density can be produced with an enhanced productivity.
摘要翻译：一种制造具有磁分区磁记录图案的磁记录介质的方法，包括形成磁性层的步骤在非磁性基板上含有0.5-6原子％的氧化物; 以及将磁性分隔磁记录图案的磁性层的区域暴露于反应性等离子体或反应离子的步骤。磁性层优选具有非粒状结构，面内取向。在将磁性层暴露于反应性等离子体或反应性离子的步骤之后，至少在已经暴露于反应性等离子体或反应离子的磁性层的所述区域中的表面优选用惰性气体照射。因此，可以提高具有高精度，高电磁转换特性和高记录密度的磁记录图形的磁记录介质。

76. 发明申请

US20100015356A1 IN-LINE FILM FORMING APPARATUS AND MANUFACTURING METHOD OF MAGNETIC RECORDING MEDIUM 审中-公开
标题翻译：磁带记录介质的在线成膜装置和制造方法
公开(公告)号：US20100015356A1
公开(公告)日：2010-01-21
申请号：US12498051
申请日：2009-07-06
申请人： Masato FUKUSHIMA , Akira Sakawaki , Tomoo Shige
发明人： Masato FUKUSHIMA , Akira Sakawaki , Tomoo Shige
IPC分类号： C23C16/453 , C23C14/34
CPC分类号： G11B5/855 , C03C10/00 , C03C17/002 , C03C2218/34 , C23C14/0688 , C23C14/568 , C23C14/5826 , C23C14/5846 , C23C14/5873
摘要： An in-line film forming apparatus is provided which prevents uneven processing from occurring when reactive plasma treatment or ion irradiation treatment is performed on a substrate held by a carrier. A carrier (25) includes a holder (28) provided with a hole (29) which allows a substrate to be disposed therein, and a plurality of supporting members (30) attached to the periphery of the hole (29) of the holder (28) in an elastically deformable manner, and is capable of detachably holding the substrate fitted into the inside of the supporting members (30) while an outer peripheral portion of the substrate is made to abut on the plurality of supporting members (30). Within a chamber which performs reactive plasma treatment or ion irradiation treatment on the substrate held by the carrier (25), a ring member (32) having an opening (32a) in a position corresponding to the substrate is disposed so as to face at least one surface or both surfaces of the substrate held by the carrier (25). Negative potential is applied to the ring member (32), and the holder (28) is grounded.
摘要翻译：提供了一种在线成膜装置，其防止在对由载体保持的基板进行反应等离子体处理或离子辐照处理时发生不均匀的处理。载体（25）包括：保持器（28），其设置有允许将基板设置在其中的孔（29）;以及多个支撑构件（30），其附接到保持器的孔（29）的周边 28），并且能够将基板的外周部抵接在多个支撑部件（30）上，从而可拆卸地保持嵌合在支撑部件（30）的内部的基板。在由载体（25）保持的基板上进行反应等离子体处理或离子辐射处理的室内，具有与基板对应的位置具有开口（32a）的环状部件（32）至少面向由载体（25）保持的基板的一个表面或两个表面。负电位施加到环构件（32）上，保持器（28）接地。

77. 发明申请

US20090290255A1 METHOD OF MANUFACTURING MAGNETIC RECORDING MEDIA, MAGNETIC RECORDING MEDIA AND MAGNETIC READ/WRITE DEVICE 审中-公开
标题翻译：磁记录媒体制作方法，磁记录介质及磁读/写装置
公开(公告)号：US20090290255A1
公开(公告)日：2009-11-26
申请号：US12064905
申请日：2006-11-07
申请人： Akira Sakawaki
发明人： Akira Sakawaki
IPC分类号： G11B5/127 , G11B5/84 , G11B5/66
CPC分类号： G11B5/855 , G11B5/667
摘要： A manufacturing method which is capable of easily and inexpensively manufacturing discrete track-type magnetic recording media is provided.A method of manufacturing magnetic recording media having a main surface on which magnetic tracks 4 are disposed in a substantially concentric arrangement and on which grooves 5 for magnetically separating radially adjoining magnetic tracks 4 from one another are formed is characterized by forming on a flat substrate 1 at least a magnetic recording layer 2 so as to fabricate a workpiece 1a, then pressing a stamper having protrusions corresponding to the grooves 5 against a main surface of the workpiece so as to transfer the shape of the protrusions to the workpiece and form grooves 5 between the magnetic tracks 4.
摘要翻译：提供了能够容易且廉价地制造离散轨道型磁记录介质的制造方法。一种制造具有主表面的磁记录介质的方法，其中磁轨4以基本上同心的方式设置在其上，并且用于将径向相邻的磁迹4彼此磁分离的槽5形成在其上，其特征在于在平坦的基板1 至少形成磁记录层2，以制造工件1a，然后将具有与槽5相对应的突起的压模压靠在工件的主表面上，以将突起的形状转移到工件上，并在第磁轨4。

78. 发明申请

US20090290250A1 MAGNETIC RECORDING MEDIUM, METHOD FOR PRODUCTION THEREOF AND MAGNETIC RECORDING AND REPRODUCING DEVICE 有权
标题翻译：磁记录介质，其制造方法和磁记录和再现装置
公开(公告)号：US20090290250A1
公开(公告)日：2009-11-26
申请号：US12279214
申请日：2007-02-13
申请人： Masato Fukushima , Akira Sakawaki , Yasumasa Sasaki
发明人： Masato Fukushima , Akira Sakawaki , Yasumasa Sasaki
IPC分类号： G11B21/02
CPC分类号： G11B5/855 , B82Y10/00 , G11B5/743 , G11B5/82 , G11B5/865
摘要： A discrete track-type magnetic recording medium (30) includes a nonmagnetic substrate (1), a magnetic recording track and a servo signal pattern which are provided on at least one side of the nonmagnetic substrate, and a nonmagnetic part (4) consisting of a nonmagnetic alloy containing Si for physically separating the magnetic recording track and the servo signal pattern. A magnetic recording and reproducing device comprising, in combination, the magnetic recording medium (30), a driving part (26) serving to drive the magnetic recording medium in a direction of recording, a magnetic head (27) composed of a recording part and a reproducing part, a device (28) to impart motion to the magnetic head relative to the magnetic recording medium, and a recording and reproducing signal processing device (29) for entering a signal into the magnetic head and reproducing an output signal from the magnetic head.
摘要翻译：离散轨道型磁记录介质（30）包括设置在非磁性基板的至少一侧的非磁性基板（1），磁记录轨道和伺服信号图案，以及由非磁性基板构成的非磁性部分（4）含有用于物理分离磁记录轨道和伺服信号模式的Si的非磁性合金。一种磁记录和再现装置，包括磁记录介质（30），用于在记录方向上驱动磁记录介质的驱动部分（26），由记录部分组成的磁头（27）和再现部分，用于相对于磁记录媒体向磁头施加运动的装置（28）;以及记录和再现信号处理装置（29），用于将信号输入磁头并再现来自磁性的输出信号头。

79. 发明申请

US20060001996A1 Perpendicular magnetic recording apparatus 失效
标题翻译：垂直磁记录装置
公开(公告)号：US20060001996A1
公开(公告)日：2006-01-05
申请号：US11168997
申请日：2005-06-29
申请人： Yuka Aoyagi , Tsutomu Tanaka , Kenji Shimizu , Akira Sakawaki
发明人： Yuka Aoyagi , Tsutomu Tanaka , Kenji Shimizu , Akira Sakawaki
IPC分类号： G11B5/02
CPC分类号： G11B5/667 , G11B5/1278 , G11B5/656 , G11B2005/0005
摘要： A perpendicular magnetic recording apparatus includes a perpendicular double-layered media having a substrate, a soft underlayer including a soft magnetic layer, an intermediate layer, and another soft magnetic layer in which the two soft magnetic layers are antiferromagnetically coupled with each other, and a perpendicular recording layer, and a magnetic head including a main pole, a return yoke, and an exciting coil. A relationship between an antiferromagnetic coupling force Hex_afc of the two soft magnetic layers included in the soft underlayer and a full width at half maximum MWW in a cross track direction when a low-frequency signal is recorded on the perpendicular recording layer by the magnetic head satisfies the following formula: Hex_afc>1.6*ln((0.23−MWW)2*100))+25.6.
摘要翻译：垂直磁记录装置包括具有基板的垂直双层介质，包括软磁层的软底层，中间层和其中两个软磁层彼此反铁磁耦合的另一软磁层，以及垂直记录层和包括主极，返回轭和励磁线圈的磁头。在低磁信号由磁头记录在垂直记录层上时，包含在软底层中的两个软磁性层的反铁磁耦合力Hex_afc与横向磁道方向上的半高宽MWW之间的关系满足以下公式：<？in-line-formula description =“In-line Formulas”end =“lead”？> Hex_afc> 1.6 * ln（（0.23-MWW）<2> * 100））+ 25.6。 <？in-line-formula description =“In-line Formulas”end =“tail”？>

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