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51. 发明申请

US20120120528A1 NOISE AND PARTICLE SHIELD FOR CONTACT SENSOR IN A SLIDER 有权
标题翻译：用于滑动接触传感器的噪声和颗粒屏蔽
公开(公告)号：US20120120528A1
公开(公告)日：2012-05-17
申请号：US12947796
申请日：2010-11-16
申请人： Masaru Furukawa , Yuki Shimizu , Junguo Xu , Yohji Maruyama , Takayoshi Ohtsu , Toshiya Shiramatsu
发明人： Masaru Furukawa , Yuki Shimizu , Junguo Xu , Yohji Maruyama , Takayoshi Ohtsu , Toshiya Shiramatsu
IPC分类号： G11B5/48
CPC分类号： G11B5/255 , G11B5/3106 , G11B5/314 , G11B5/40 , G11B5/6076
摘要： A slider comprising a contact sensor element configured to respond to a change in resistance due to a change in temperature, and a shield structure. The shield structure comprises a lower thermal conductivity than the contact sensor element and a greater hardness than the contact sensor element.
摘要翻译：一种滑动件，包括接触传感器元件，其被配置为响应由于温度变化引起的电阻变化，以及屏蔽结构。屏蔽结构包括比接触传感器元件更低的热导率并且具有比接触传感器元件更大的硬度。

52. 发明申请

US20110249359A1 MAGNETIC HEAD HAVING AN ASYMMETRICAL SHAPE AND SYSTEMS THEREOF 有权
标题翻译：具有非对称形状的磁头及其系统
公开(公告)号：US20110249359A1
公开(公告)日：2011-10-13
申请号：US12756947
申请日：2010-04-08
申请人： Masafumi Mochizuki , Yohji Maruyama , Etoh Kimitoshi
发明人： Masafumi Mochizuki , Yohji Maruyama , Etoh Kimitoshi
IPC分类号： G11B21/02 , G11B5/127
CPC分类号： G11B5/1871 , G11B5/1278 , G11B5/23 , G11B5/3116 , G11B5/315
摘要： A magnetic head, according to one embodiment, includes a main magnetic pole having a protruding portion such that a distance from a first side of a trailing edge of the main magnetic pole to a leading edge of the main magnetic pole is different from a distance from a second side of the trailing edge of the main magnetic pole to the leading edge of the main magnetic pole, an auxiliary magnetic pole, and a coil wound around a magnetic circuit, the magnetic circuit including the main magnetic pole and the auxiliary magnetic pole. In another embodiment, a disk drive system includes a magnetic storage medium, at least one magnetic head as described previously for writing to the magnetic medium, a slider for supporting the magnetic head, and a control unit coupled to the magnetic head for controlling operation of the magnetic head. Additional systems and heads are also presented.
摘要翻译：根据一个实施例的磁头包括具有突出部分的主磁极，使得从主磁极的后缘的第一侧到主磁极的前缘的距离不同于主磁极的后缘的第二面到主磁极的前缘，辅助磁极和缠绕在磁路上的线圈，磁路包括主磁极和辅助磁极。在另一个实施例中，磁盘驱动器系统包括磁存储介质，至少一个如前所述用于写入磁介质的磁头，用于支撑磁头的滑块和耦合到磁头的控制单元，用于控制磁头磁头。还提供了附加的系统和头。

53. 发明授权

US07995311B2 Magnetic shield, manufacturing method thereof and thin film magnetic head employing the same 有权
标题翻译：磁屏蔽，其制造方法和使用该磁屏蔽的薄膜磁头
公开(公告)号：US07995311B2
公开(公告)日：2011-08-09
申请号：US11820554
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： G11B5/147
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3912 , G11B5/3967
摘要： Embodiments of the present invention provide a magnetic shield composed of size-controlled small crystal grains and provide a more after-write read noise free thin film magnetic head. According to one embodiment of the present invention, an upper magnetic shield uses 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 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). Each layer's crystal structure is different from that of its upper and lower layers, which results in size-controlled small crystal grains since the epitaxial growth is broken. Since crystal grains are reduced in size, it is possible to suppress the after-write read noise and therefore attain a read head which allows recording at higher frequencies.
摘要翻译：本发明的实施例提供一种由尺寸控制的小晶粒组成的磁屏蔽，并提供更多的后写入无噪声薄膜磁头。根据本发明的一个实施例，上磁屏蔽使用通过交替层叠面心立方（fcc）结晶磁性薄膜和体心立方（bcc）结晶磁性薄膜而形成的多层磁性膜，电镀。电镀浴温度为30±1℃，pH为约2.0-1.0〜2.0 + 0.5，Ni2 +和5〜15（g / l）的金属离子浓度约为5〜25（g / 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）。每层的晶体结构与其上层和下层的晶体结构不同，这导致尺寸控制的小晶粒，因为外延生长破裂。由于晶粒尺寸减小，因此可以抑制写入后的读取噪声，从而获得允许以较高频率记录的读取头。

54. 发明申请

US20110141616A1 MAGNETIC RECORDING HEAD AND MAGNETIC DISK STORAGE DEVICE 审中-公开
标题翻译：磁记录头和磁盘储存装置
公开(公告)号：US20110141616A1
公开(公告)日：2011-06-16
申请号：US12965332
申请日：2010-12-10
申请人： Ikuya Tagawa , Masafumi Mochizuki , Yohji Maruyama
发明人： Ikuya Tagawa , Masafumi Mochizuki , Yohji Maruyama
IPC分类号： G11B5/265 , G11B21/02
CPC分类号： G11B5/3146 , G11B5/11 , G11B5/1278 , G11B5/3116 , G11B5/315 , G11B5/3163
摘要： In one embodiment, a magnetic recording head includes a main magnetic pole adapted for generating a magnetic field for recording information on a magnetic disk, a magnetic shield member adapted for suppressing spreading of a magnetic field output from the main magnetic pole through a non-magnetic insulation member, a side top gap, a side bottom gap, and a trailing gap. The side top gap is less than two times the trailing gap, the side bottom gap is larger than the side top gap, and the magnetic shield member is positioned on a sliding surface of the magnetic recording head and includes a trailing portion positioned adjacent the trailing gap in the trailing direction and at least one side portion positioned adjacent the side bottom gap in the cross-track direction. Other heads and systems are also presented according to various embodiments.
摘要翻译：在一个实施例中，磁记录头包括适于产生用于在磁盘上记录信息的磁场的主磁极，适用于抑制从主磁极输出的磁场扩散通过非磁性的磁屏蔽部件绝缘构件，侧顶间隙，侧底间隙和拖尾间隙。侧顶间隙小于尾间隙的两倍，侧底间隙大于侧顶间隙，并且磁屏蔽构件位于磁记录头的滑动表面上，并且包括位于相邻尾部的后部在后沿方向上的间隙和在横向轨道方向上邻近侧底部间隙定位的至少一个侧部。根据各种实施例还提供了其他头和系统。

55. 发明申请

US20080180861A1 Magnetic recording apparatus 有权
标题翻译：磁记录装置
公开(公告)号：US20080180861A1
公开(公告)日：2008-07-31
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： G11B5/33
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

56. 发明申请

US20060198056A1 Magnetic head and magnetic recording/retrieving apparatus using the same 失效
标题翻译：磁头及使用其的磁记录/回收装置
公开(公告)号：US20060198056A1
公开(公告)日：2006-09-07
申请号：US11415572
申请日：2006-05-01
申请人： Yohji Maruyama , Tadayuki Iwakura , Takashi Kawabe , Makoto Morijiri , Hiroshi Fukui
发明人： Yohji Maruyama , Tadayuki Iwakura , Takashi Kawabe , Makoto Morijiri , Hiroshi Fukui
IPC分类号： G11B5/60
CPC分类号： G11B5/3136 , G11B5/3106 , G11B5/6005
摘要： A magnetic head comprises a retrieving unit for converting magnetic information output from a recording medium into an electric signal, a writing unit having the function of electromagnetic conversion for writing the magnetic information in the recording medium in response to the electric signal, and a first protective film formed on the retrieving unit. A second protective film is formed on the first protective film. The coefficient of linear expansion of the second protective film is reduced in comparison with that of the first protective film. Furthermore, the first protective film is an alumina film; in contrast, the second protective film is a film made of an alumina film containing silicon oxide therein.
摘要翻译：磁头包括用于将从记录介质输出的磁信息转换为电信号的检索单元，具有电磁转换功能的写入单元，用于响应于电信号将磁信息写入记录介质中;以及第一保护在检索单元上形成的胶片。在第一保护膜上形成第二保护膜。与第一保护膜相比，第二保护膜的线膨胀系数降低。此外，第一保护膜是氧化铝膜; 相反，第二保护膜是由其中含有氧化硅的氧化铝膜制成的膜。

57. 发明申请

US20050007698A1 Thin film magnetic head and magnetic storage apparatus 审中-公开
标题翻译：薄膜磁头和磁存储装置
公开(公告)号：US20050007698A1
公开(公告)日：2005-01-13
申请号：US10914094
申请日：2004-08-10
申请人： Kazue Kudo , Yasuyuki Okada , Moriaki Fuyama , Yohji Maruyama , Gen Oikawa
发明人： Kazue Kudo , Yasuyuki Okada , Moriaki Fuyama , Yohji Maruyama , Gen Oikawa
IPC分类号： G11B5/31 , G11B5/147
CPC分类号： G11B5/313 , G11B5/3109 , G11B5/3146 , G11B5/3163 , Y10T29/49032
摘要： A thin film magnetic head and a method of manufacture thereof, wherein the head includes a lower magnetic pole, an upper magnetic pole provided so as to face the lower magnetic pole, and a magnetic gap layer provided between the lower magnetic pole and the upper magnetic pole. The upper magnetic pole is formed by a sputtered first magnetic layer which is an underlayer and a plated second magnetic layer provided on the sputtered first magnetic layer.
摘要翻译：一种薄膜磁头及其制造方法，其中头部包括下磁极，设置成面对下磁极的上磁极，以及设置在下磁极与上磁极之间的磁隙层极。上磁极由溅射的第一磁性层形成，溅射的第一磁性层是设置在溅射的第一磁性层上的底层和镀覆的第二磁性层。

58. 发明授权

US06795272B2 Thin film magnetic head and magnetic storage apparatus 失效
标题翻译：薄膜磁头和磁存储装置
公开(公告)号：US06795272B2
公开(公告)日：2004-09-21
申请号：US10217451
申请日：2002-08-14
申请人： Kazue Kudo , Yasuyuki Okada , Moriaki Fuyama , Yohji Maruyama , Gen Oikawa
发明人： Kazue Kudo , Yasuyuki Okada , Moriaki Fuyama , Yohji Maruyama , Gen Oikawa
IPC分类号： G11B547
CPC分类号： G11B5/313 , G11B5/3109 , G11B5/3146 , G11B5/3163 , Y10T29/49032
摘要： A thin film magnetic head includes a lower magnetic pole, an upper magnetic pole provided so as to face the lower magnetic pole, and a magnetic gap layer provided between the lower magnetic pole and the upper magnetic pole. The upper magnetic pole constitutes a first magnetic layer formed on a side facing the magnetic gap layer by means of sputtering and a second magnetic layer formed on the first magnetic layer by means of plating, in which the saturation magnetic flux density of the first magnetic layer is set higher than that of the second magnetic layer. The thin film magnetic head composed as above is capable of generating a stronger magnetic field owing to its stably-formed magnetic core, thereby recording on a high-coercivity medium and high-density recording are made possible.
摘要翻译：薄膜磁头包括下磁极，设置成面对下磁极的上磁极和设置在下磁极和上磁极之间的磁隙层。上磁极构成通过溅射形成在面对磁隙层的一侧的第一磁性层，以及通过电镀形成在第一磁性层上的第二磁性层，其中第一磁性层的饱和磁通密度被设定为高于第二磁性层的高度。如上构成的薄膜磁头由于其稳定形成的磁芯而能够产生更强的磁场，从而在高矫顽力介质上进行记录和高密度记录。

59. 发明授权

US06349008B1 Magnetic recording media, magnetic heads and magnetic read-write apparatus using the same 失效
标题翻译：具有易倾斜倾斜轴的磁读写装置
公开(公告)号：US06349008B1
公开(公告)日：2002-02-19
申请号：US09176114
申请日：1998-10-21
申请人： Takanobu Takayama , Kiwamu Tanahashi , Kazuetsu Yoshida , Mikio Suzuki , Yoshiyuki Hirayama , Masaaki Futamoto , Yohji Maruyama
发明人： Takanobu Takayama , Kiwamu Tanahashi , Kazuetsu Yoshida , Mikio Suzuki , Yoshiyuki Hirayama , Masaaki Futamoto , Yohji Maruyama
IPC分类号： G11B502
CPC分类号： G11B5/656 , G11B5/012 , G11B5/1278 , G11B5/62 , G11B5/82
摘要： A magnetic recording medium wherein, when the axis of easy magnetization of the magnetic recording medium for magnetically recording information by means of a magnetic head is projected onto a surface of the magnetic recording medium, the axis projected onto the surface of the magnetic recording medium exists so as to be unidirectionally inclined with respect to the direction of a track on which information is to be recorded, whereby, by using the magnetic recording medium, there can be provided a magnetic head and a magnetic read-write apparatus greatly improved in longitudinal recording density.
摘要翻译：一种磁记录介质，其中当用于通过磁头磁信息记录的磁记录介质的易磁化轴被投影到磁记录介质的表面上时，投射到磁记录介质的表面上的轴存在相对于要记录信息的轨道的方向是单向倾斜的，由此通过使用磁记录介质，可以提供在纵向记录中大大改进的磁头和磁读写装置密度。

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