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1. 发明授权

US5898540A Magnetic head and slider configuration for contact recording having a plurality of tapered surfaces 失效
标题翻译：用于具有多个锥形表面的接触记录的磁头和滑块结构
公开(公告)号：US5898540A
公开(公告)日：1999-04-27
申请号：US650196
申请日：1996-05-20
申请人： Yohji Maruyama , Makoto Aihara
发明人： Yohji Maruyama , Makoto Aihara
IPC分类号： G11B5/60 , G11B5/64
CPC分类号： G11B5/6005 , G11B5/64
摘要： A magnetic storage apparatus includes a magnetic head having sliding front and rear pads on its sliding surface. The front pads are tapered toward their front ends and the height of the front pads are higher than the height of the rear pad. The tapered front pads are coated with a thin film. The magnetic pad is provided with a total of three pads, two pads on its front side and one pad on its rear side. The sum area of the pads is within a range of 0.0003 to 0.02 mm.sup.2. A recording and reproducing operation is performed with the front pads and the rear pad concurrently kept in contact sliding with the surface of a recording medium. A reliable contact sliding is thus performed with the pads kept in contact with the recording medium. The magnetic head reliably operates with its recording and reproducing component kept in close vicinity with the recording medium. Therefore, a reliable magnetic head and a magnetic storage apparatus employing it are provided.
摘要翻译：磁性存储装置包括在其滑动表面上具有滑动的前垫和后垫的磁头。前垫朝向其前端逐渐变细，前垫的高度高于后垫的高度。锥形前垫用薄膜涂覆。磁垫设置有三个焊盘，其前侧有两个焊盘，其背面有一个焊盘。垫的总面积在0.0003〜0.02mm 2的范围内。执行记录和再现操作，其中前垫和后垫同时保持与记录介质的表面接触滑动。因此，垫与保持与记录介质接触的可靠接触滑动。磁头可靠地操作，其记录和再现部件与记录介质紧密相连。因此，提供了可靠的磁头和采用它的磁存储装置。

2. 发明授权

US6104574A Magnetic head with a magnetic pole sandwiched between conductive materials 失效
标题翻译：磁头与磁极夹在导电材料之间
公开(公告)号：US6104574A
公开(公告)日：2000-08-15
申请号：US11838
申请日：1998-02-20
申请人： Hisashi Takano , Yohji Maruyama , Makoto Aihara , Takashi Kawabe , Moriaki Fuyama
发明人： Hisashi Takano , Yohji Maruyama , Makoto Aihara , Takashi Kawabe , Moriaki Fuyama
IPC分类号： G11B5/187 , G11B5/31 , G11B5/39 , G11B5/455
CPC分类号： G11B5/3967 , G11B5/187 , G11B5/312 , G11B5/3143 , G11B5/3109 , G11B5/3163 , G11B5/455
摘要： A leaking magnetic flux from a taper portion is canceled by utilizing an eddy current loss by using a magnetic head having a structure wherein at least a part of a magnetic pole constituting a magnetic path through a recording gap is sandwiched by conductive materials with respect to a track width direction, and a write blur quantity can be thus reduced. Further, magnetic saturation can be prevented by limiting a volume decrease at the distal end portion of the magnetic pole when the track width is reduced. Accordingly, the present invention can prevent magnetic saturation of the distal end portion of the magnetic pole resulting from the reduction of the width of the track of the recording head, can accomplish narrow-track recording by the recording head to a recording medium having high-coercive force and can reduce write blur. Further, the present invention can provide a narrow-track magnetic head capable of accomplishing a high-speed transfer, large-capacity magnetic recording system, and a magnetic memory apparatus using this magnetic head.
摘要翻译： PCT No.PCT / JP95 / 01667 Sec。 371日期：1998年2月20日 102（e）1998年2月20日PCT PCT 1995年8月23日PCT公布。公开号WO97 / 08687 日期1997年3月6日通过使用具有以下结构的磁头利用涡流损耗来消除来自锥形部分的泄漏磁通，其中构成通过记录间隙的磁路的至少一部分磁极被夹持导电可以减少相对于轨道宽度方向的材料和写入模糊量。此外，当磁道宽度减小时，通过限制磁极的远端部分的体积减小可以防止磁饱和。因此，本发明可以防止由于记录头的轨道的宽度的减小导致的磁极的远端部分的磁饱和，可以通过记录头实现到具有高记录头的记录介质的窄轨记录，矫顽力可以减少书写模糊。此外，本发明可以提供一种能够实现高速传输，大容量磁记录系统的磁道磁头和使用该磁头的磁存储装置。

3. 发明授权

US08064161B2 Perpendicular magnetic recording head and method for manufacturing the same 有权
标题翻译：垂直磁记录头及其制造方法
公开(公告)号：US08064161B2
公开(公告)日：2011-11-22
申请号：US12231246
申请日：2008-08-28
申请人： Kazue Kudo , Hiromi Shiina , Gen Oikawa , Yohji Maruyama , Noriyuki Saiki
发明人： Kazue Kudo , Hiromi Shiina , Gen Oikawa , Yohji Maruyama , Noriyuki Saiki
IPC分类号： H04R31/00 , G11B5/147
CPC分类号： G11B5/3146 , G11B5/1278 , G11B5/315 , G11B5/3163 , Y10T29/49044 , Y10T29/4906
摘要： Embodiments of the present invention help to provide a perpendicular magnetic recording head capable of writing a signal in a track having a small width. According to one embodiment, a perpendicular magnetic recording head includes an auxiliary pole, a main pole, a yoke, a coil, a first soft magnetic film and a second soft magnetic film. The yoke is in contact with the main pole. The coil is wound around a magnetic circuit composed of the auxiliary and main poles and the yoke. The first soft magnetic film is provided on both sides of the main pole with a non-magnetic film provided between the first soft magnetic film and the main pole. The second soft magnetic film is provided on the trailing side of the main pole with the non-magnetic film provided between the second soft magnetic film and the main pole. The first and second soft magnetic films are two types of plated magnetic films. One type of the plated magnetic films have respective thicknesses of 0.5 nm to 20 nm and respective body centered cubic lattice crystal structures. The other types of the plated magnetic films have respective thicknesses of 0.5 nm to 20 nm and respective face centered cubic lattice crystal structures. The two types of the plated magnetic films are alternately laminated with four or more layers. This can achieve the magnetic disk drive capable of reducing a possibility to erroneously delete a signal after the signal being written and preventing degradation of characteristics of a high frequency signal.
摘要翻译：本发明的实施例有助于提供一种能够在具有小宽度的轨迹中写入信号的垂直磁记录头。根据一个实施例，垂直磁记录头包括辅助极，主极，磁轭，线圈，第一软磁膜和第二软磁膜。轭与主极接触。线圈缠绕在由辅助和主极和轭构成的磁路上。第一软磁膜设置在主极的两侧，设置在第一软磁膜和主极之间的非磁性膜。第二软磁膜设置在主极的后侧，设置在第二软磁膜和主极之间的非磁性膜。第一和第二软磁膜是两种类型的镀覆磁性膜。一种类型的电镀磁性膜具有0.5nm至20nm的各自的厚度和相应的体心立方晶格结构。其他类型的镀膜磁性膜具有0.5nm至20nm的各自的厚度和各自的面心立方晶格结构。两种类型的镀覆磁性膜交替地层压有四层或更多层。这可以实现能够降低信号被写入之后错误地删除信号的可能性的磁盘驱动器，并且防止高频信号的特性的劣化。

4. 发明申请

US20110090602A1 HEAD-GIMBAL ASSEMBLY INCLUDING A TRANSMISSION-LINE STRUCTURE FOR HIGH-DENSITY MAGNETIC RECORDING 有权
标题翻译：包括用于高密度磁记录的传输线结构的HEAD-GIMBAL组件
公开(公告)号：US20110090602A1
公开(公告)日：2011-04-21
申请号：US12564885
申请日：2009-09-22
申请人： Nobumasa NISHIYAMA , Yohji Maruyama
发明人： Nobumasa NISHIYAMA , Yohji Maruyama
IPC分类号： G11B5/48
CPC分类号： G11B5/486
摘要： A head-gimbal assembly. The head-gimbal assembly includes a suspension, a head-slider coupled to the suspension, a magnetic-recording assistance element on the head-slider for applying an electromagnetic wave to a magnetic-recording disk, and a transmission line on the suspension for transmitting signals to the magnetic-recording assistance element. The transmission line includes an electrically conductive line for transmitting the signals, an upper shield placed above the electrically conductive line along the electrically conductive line, a lower shield placed below the electrically conductive line along the electrically conductive line, and a plurality of columns arranged at each of a right side and a left side of the electrically conductive line along the electrically conductive line for connecting the upper shield and the lower shield. The plurality of columns arranged at the right and left sides includes, respectively, a right linear array of columns and a left linear array of columns.
摘要翻译：一个万向节头组件。头部万向节组件包括悬挂件，联接到悬架的头部滑块，用于向磁记录盘施加电磁波的磁头滑块上的磁记录辅助元件，以及用于发送的悬架上的传输线信号到磁记录辅助元件。传输线包括用于传输信号的导电线，沿着导电线放置在导电线之上的上屏蔽，沿着导电线放置在导电线下方的下屏蔽，以及布置在沿着导电线的导电线的右侧和左侧的每一个，用于连接上屏蔽和下屏蔽。布置在左侧和左侧的多个列分别包括列的右线性阵列和列的左线性阵列。

5. 发明授权

US07920359B2 Magnetic recording apparatus with correlated main magnetic pole-to-shields spacing and main magnetic pole-to-medium layers spacing 有权
标题翻译：磁记录装置具有相关的主磁极与屏蔽间距和主磁极至中间层间距
公开(公告)号：US07920359B2
公开(公告)日：2011-04-05
申请号：US12012241
申请日：2008-01-31
申请人： Yohji Maruyama , Nelson Cheng , Hideki Zaitsu , Hisao Okamoto
发明人： Yohji Maruyama , Nelson Cheng , Hideki Zaitsu , Hisao Okamoto
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/312
摘要： Embodiments of the present invention achieve a high linear recording density and a high track recording density to thereby improve the areal recording density in a perpendicular magnetic recording apparatus having a magnetic head that includes a trailing shield and side shields around a main magnetic pole piece. According to one embodiment, in a magnetic recording apparatus, each of magnetic distances of various sorts is set so as to satisfy relationships of Lmag
摘要翻译：本发明的实施例实现了高线性记录密度和高轨道记录密度，从而提高了具有磁头的垂直磁记录装置的面积记录密度，该磁头包括后屏蔽和围绕主磁极片的侧屏蔽。根据一个实施例，在磁记录装置中，各种磁距离被设定为满足Lmag

6. 发明申请

US20080075977A1 Magnetic film, manufacturing method thereof and thin film magnetic head 有权
标题翻译：磁膜，其制造方法和薄膜磁头
公开(公告)号：US20080075977A1
公开(公告)日：2008-03-27
申请号：US11820598
申请日：2007-06-19
申请人： Kazue Kudo , Gen Oikawa , Yohji Maruyama , Noriyuki Saiki , Hiromi Shiina
发明人： Kazue Kudo , Gen Oikawa , Yohji Maruyama , Noriyuki Saiki , Hiromi Shiina
IPC分类号： G11B5/33 , H04R31/00
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/147 , G11B5/313 , Y10T29/49032 , Y10T428/115
摘要： Embodiments of the present invention provide a magnetic disk drive capable of allowing higher data transfer rates and higher recording densities. According to one embodiment, an upper magnetic core and lower magnetic core comprise a multi-layered magnetic film formed by alternately stacking a face-centered cubic (fcc) crystalline magnetic thin layer and a body-centered cubic (bcc) crystalline magnetic thin layer by plating. The plating bath is such that the temperature is about 30±1° C., pH is about 2.0−1.0 to 2.0+0.5, metal ion concentrations are about 5 to 25 (g/l) for Ni2+ and 5 to 15 (g/l) for Fe2+, saccharin sodium concentration is about 1.5±1.0 (g/l), sodium chloride concentration is about 25±5 (g/l), and boric acid concentration is about 25±5 (g/l). Since each layer's crystal structure is different from that of its adjacent lower layer, epitaxial growth is broken within each layer. Thus, since crystal grains are reduced in size, it is possible to lessen the decrease of the permeability μ at higher frequencies.
摘要翻译：本发明的实施例提供一种能够允许更高数据传输速率和更高记录密度的磁盘驱动器。根据一个实施例，上磁芯和下磁芯包括通过交替地将面心立方（fcc）晶体磁性薄层和体心立方（bcc）结晶磁性薄层交替堆叠而形成的多层磁性膜，电镀。电镀浴温度为约30±1℃，pH为约2.0-1.0至2.0 + 0.5，Ni2 +和5至15（g / l）的金属离子浓度为约5至25（g / l） l）对于Fe2 +，糖精钠浓度约为1.5±1.0（g / l），氯化钠浓度约为25±5（g / l），硼酸浓度约为25±5（g / l）。由于每个层的晶体结构与其相邻的下层的晶体结构不同，所以在每个层内外延生长被破坏。因此，由于晶粒尺寸减小，因此能够降低高频率下的磁导率μμ的降低。

7. 发明授权

US06721132B2 Inductive head and magnetic disk apparatus 失效
标题翻译：感应磁头和磁盘装置
公开(公告)号：US06721132B2
公开(公告)日：2004-04-13
申请号：US09811437
申请日：2001-03-20
申请人： Shunichi Narumi , Hiroyuki Hoshiya , Yohji Maruyama
发明人： Shunichi Narumi , Hiroyuki Hoshiya , Yohji Maruyama
IPC分类号： G11B5147
CPC分类号： B82Y10/00 , G11B5/3116 , G11B5/312 , G11B5/3967 , Y10S977/724
摘要： In an inductive head according to the present invention, in order to efficiently carry a magnetic flux to a magnetic pole tip layer, the top surface of the rear end of the magnetic pole tip layer is etched away so as to connect the rear end of the magnetic pole tip layer to the front end of an upper magnetic core having a width larger than that of the rear end of the magnetic pole tip layer. It is possible to realize a recording head having a large recording magnetic field. In addition, the front end of the upper magnetic core is recessed from an air bearing surface by 0.2 to 3.0 &mgr;m so as to reduce the magnetic field leaked from the end of the upper magnetic core.
摘要翻译：在根据本发明的感应头中，为了有效地将磁通量传送到磁极尖端层，磁极尖端层的后端的顶表面被蚀刻掉，以便将磁极尖端层到具有比磁极末端层的后端大的宽度的上磁芯的前端。可以实现具有大记录磁场的记录头。此外，上磁芯的前端从空气轴承表面凹陷0.2至3.0μm，以便减小从上磁心的端部泄漏的磁场。

8. 发明授权

US06530141B2 Method of forming thin film magnetic recording head with narrow track width performing high density recording at high driving frequency 有权
标题翻译：在高驱动频率下形成具有窄轨迹宽度的高密度记录的薄膜磁记录头的方法
公开(公告)号：US06530141B2
公开(公告)日：2003-03-11
申请号：US09879974
申请日：2001-06-14
申请人： Matahiro Komuro , Tomohiro Okada , Moriaki Fuyama , Tetsuo Ito , Hiroshi Fukui , Yohji Maruyama , Miki Hara , Hisashi Takano
发明人： Matahiro Komuro , Tomohiro Okada , Moriaki Fuyama , Tetsuo Ito , Hiroshi Fukui , Yohji Maruyama , Miki Hara , Hisashi Takano
IPC分类号： G11B5127
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/012 , G11B5/3109 , G11B5/313 , G11B5/3143 , G11B5/3967 , G11B2005/3996 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044 , Y10T29/4906
摘要： A method of forming a thin film magnetic head, including forming a first magnetic layer, forming a second magnetic layer as a magnetic flux passage in combination with the first magnetic layer, and forming a laminate structure body between the first magnetic layer and the second magnetic layer. The forming of the laminate structure body includes forming a third magnetic layer, a fourth magnetic layer and a non-magnetic conductive layer between the third magnetic layer and the fourth magnetic layer, projecting the laminate structure body more toward an air bearing surface than a projection of the first magnetic layer and the second magnetic layer toward the air bearing surface, and providing the laminate structure body with a width which is smaller than a width of the first magnetic layer and the second magnetic layer.
摘要翻译：一种形成薄膜磁头的方法，包括形成第一磁性层，与第一磁性层组合形成作为磁通量通道的第二磁性层，以及在第一磁性层和第二磁性层之间形成层叠结构体层。层压结构体的形成包括在第三磁性层和第四磁性层之间形成第三磁性层，第四磁性层和非磁性导电层，使叠层结构体朝向空气轴承表面突出地突出，的第一磁性层和第二磁性层朝向空气轴承表面，并且为层叠结构体提供的宽度小于第一磁性层和第二磁性层的宽度。

9. 发明授权

US06327112B1 Adjacent track position detectable information storage apparatus 失效
标题翻译：相邻轨道位置可检测信息存储装置
公开(公告)号：US06327112B1
公开(公告)日：2001-12-04
申请号：US09227078
申请日：1999-01-05
申请人： Hiroshi Ide , Futoshi Tomiyama , Yasutaka Nishida , Takehiko Hamaguchi , Hisashi Takano , Yohji Maruyama , Atsushi Nakamura , Hideki Sawaguchi
发明人： Hiroshi Ide , Futoshi Tomiyama , Yasutaka Nishida , Takehiko Hamaguchi , Hisashi Takano , Yohji Maruyama , Atsushi Nakamura , Hideki Sawaguchi
IPC分类号： G11B5596
CPC分类号： G11B19/04 , G11B5/596
摘要： An information storage apparatus has a disk medium setting data recording areas along a plurality of tracks concentrically arranged, a head for recording and reproducing data on tracks of the disk medium, an actuator for moving the head to a desired track among the plurality of tracks. Also included is an electric circuit for controlling recording and reproducing in response to detecting the distance from a recorded magnetization pattern on an adjacent track in the radial direction by detecting previously recorded signals on adjacent tracks while data recording. Even if the track density is increased, the upper limit of a threshold value of a function for preventing off-track recording of the information storage apparatus can be increased and a high track density of the information storage apparatus can be easily realized.
摘要翻译：信息存储装置具有盘介质，沿着同心配置的多个轨道设置数据记录区域，用于在盘介质的轨道上记录和再现数据的磁头，用于将磁头移动到多个磁道中的期望磁道的致动器。还包括用于响应于通过在数据记录期间检测相邻轨道上的先前记录的信号来检测与径向上的相邻轨道上的记录磁化模式的距离来控制记录和再现的电路。即使磁道密度增加，也可以增加用于防止信息存储装置的越野记录的功能的阈值的上限，并且可以容易地实现信息存储装置的高磁道密度。

10. 发明授权

US08786986B2 Head-slider including thin-film magnetic-recording head having reduced thermal protrusion 有权
标题翻译：磁头滑块包括具有减小的热突起的薄膜磁记录头
公开(公告)号：US08786986B2
公开(公告)日：2014-07-22
申请号：US12642739
申请日：2009-12-18
申请人： Shigeo Fujita , Masahiko Soga , Hideaki Tanaka , Yuji Ueda , Tomohiro Okada , Takayoshi Ohtsu , Wataru Kimura , Yohji Maruyama
发明人： Shigeo Fujita , Masahiko Soga , Hideaki Tanaka , Yuji Ueda , Tomohiro Okada , Takayoshi Ohtsu , Wataru Kimura , Yohji Maruyama
IPC分类号： G11B5/39
CPC分类号： G11B5/1278 , G11B5/3133 , G11B5/3136 , G11B5/3967 , G11B5/6005 , G11B5/6064 , G11B2005/0005
摘要： A head-slider. The head-slider includes a slider, and a thin-film magnetic-recording head. The thin-film magnetic-recording head includes: a read element; a write element; a non-magnetic insulating protective layer disposed around both read and write elements; a resist disposed at a position further away from an air-bearing surface than the read element; and, a hard-material member including a material selected from the group consisting of silicon carbide and tungsten, which is disposed at a position further away from the air-bearing surface than the read element and the write element. Both an end of the resist and an end of the hard-material member overlap the write element when viewed in a stacking direction. A ratio of a distance from the air-bearing surface to a deepest end of the hard-material member to a distance from the air-bearing surface to a deepest end of the resist is at least 0.9.
摘要翻译：头滑块。磁头滑动器包括滑块和薄膜磁记录头。薄膜磁记录头包括：读取元件; 写元素设置在读取和写入元件周围的非磁性绝缘保护层; 设置在远离所述读取元件的空气轴承表面的位置处的抗蚀剂; 以及包括选自碳化硅和钨的材料的硬质材料构件，其被设置在比读取元件和写入元件更远离空气轴承表面的位置处。当在堆叠方向上观察时，抗蚀剂的一端和硬质材料构件的一端与写入元件重叠。从空气轴承表面到硬质材料构件的最深端的距离与从空气轴承表面到抗蚀剂的最深端的距离的比率至少为0.9。

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