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1. 发明申请

US20080049359A1 MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING AND REPRODUCING APPARATUS 有权
标题翻译：磁记录介质和磁记录和再现装置
公开(公告)号：US20080049359A1
公开(公告)日：2008-02-28
申请号：US11780521
申请日：2007-07-20
申请人： RYUJI TSUCHIYAMA , Masahumi Mochizuki , Kyosuke Ono , Yuko Tsuchiya , Hiroshi Ikekame
发明人： RYUJI TSUCHIYAMA , Masahumi Mochizuki , Kyosuke Ono , Yuko Tsuchiya , Hiroshi Ikekame
IPC分类号： G11B5/82
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/743 , G11B5/855
摘要： In a discrete track medium and a patterned medium, a meniscus adsorptive force is reduced and writing into adjacent tracks is prevented. A magnetic layer in lands or patterns in the discrete track medium or the patterned medium is formed into a cylindrical shelly or spherical shelly shape with a uniform thickness. Moreover, a height of cylindrical shelly land or a height of spherical shelly land is changed between 5 nm and 30 nm according to radial positions. Thus, an effect is achieved for providing a magnetic recording medium and a magnetic disk apparatus which are excellent in realizing higher recording density and higher reliability.
摘要翻译：在离散轨道介质和图案化介质中，弯月面吸附力减小，并且防止写入相邻轨迹。在离散轨道介质或图案化介质中的平台或图案中的磁性层形成为具有均匀厚度的圆柱形的立体或球形形状。此外，根据径向位置，在5nm至30nm之间改变圆柱形地面的高度或球形搁置高度的高度。因此，实现了提供实现更高记录密度和更高可靠性的磁记录介质和磁盘装置的效果。

2. 发明授权

US07936536B2 Magnetic recording medium having lands with curved upper surfaces and magnetic recording and reproducing apparatus 有权
标题翻译：磁记录介质具有带曲面上表面的平台和磁记录和重放装置
公开(公告)号：US07936536B2
公开(公告)日：2011-05-03
申请号：US11780521
申请日：2007-07-20
申请人： Ryuji Tsuchiyama , Masahumi Mochizuki , Kyosuke Ono , Yuko Tsuchiya , Hiroshi Ikekame
发明人： Ryuji Tsuchiyama , Masahumi Mochizuki , Kyosuke Ono , Yuko Tsuchiya , Hiroshi Ikekame
IPC分类号： G11B5/68 , G11B5/82
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/743 , G11B5/855
摘要： In a discrete track medium and a patterned medium, a meniscus adsorptive force is reduced and writing into adjacent tracks is prevented. A magnetic layer in lands or patterns in the discrete track medium or the patterned medium is formed into a cylindrical shelly or spherical shelly shape with a uniform thickness. Moreover, a height of cylindrical shelly land or a height of spherical shelly land is changed between 5 nm and 30 nm according to radial positions. Thus, an effect is achieved for providing a magnetic recording medium and a magnetic disk apparatus which are excellent in realizing higher recording density and higher reliability.
摘要翻译：在离散轨道介质和图案化介质中，弯月面吸附力减小，并且防止写入相邻轨迹。在离散轨道介质或图案化介质中的平台或图案中的磁性层形成为具有均匀厚度的圆柱形的立体或球形形状。此外，根据径向位置，在5nm至30nm之间改变圆柱形地面的高度或球形搁置高度的高度。因此，实现了提供实现更高记录密度和更高可靠性的磁记录介质和磁盘装置的效果。

3. 发明申请

US20060093863A1 Magnetic recording medium, manufacturing process thereof, and magnetic recording apparatus 审中-公开
标题翻译：磁记录介质，其制造方法和磁记录装置
公开(公告)号：US20060093863A1
公开(公告)日：2006-05-04
申请号：US11200001
申请日：2005-08-10
申请人： Yuko Tsuchiya , Masafumi Mochizuki , Teruo Kohashi , Hiroshi Ikekame
发明人： Yuko Tsuchiya , Masafumi Mochizuki , Teruo Kohashi , Hiroshi Ikekame
IPC分类号： G11B5/66
CPC分类号： G11B5/855 , G11B5/667 , G11B5/7325 , G11B5/8404
摘要： A discrete track type perpendicular magnetic recording medium and a manufacturing method thereof are provided where the crystallographic orientation and perpendicular magnetic anisotropy of the magnetic recording layer are excellent, the magnetic properties of the magnetic recording layer are not deteriorated by processing, the manufacturing cost is not expensive, and a complicated manufacturing process is not required. A concavo-convex pattern structure consisting of a convex part corresponding to the position of the data track recording magnetic information and a concave part corresponding to the position of the space between data tracks is provided, and the base layer for controlling crystallographic orientation and the magnetic recording layer are stacked without voids on the concave and convex parts along the concavo-convex pattern structure.
摘要翻译：提供了一种离散轨道型垂直磁记录介质及其制造方法，其中磁记录层的结晶取向和垂直磁各向异性优异，磁记录层的磁特性不会因加工而劣化，制造成本不昂贵，并且不需要复杂的制造过程。提供了由对应于数据磁道记录磁信息的位置的凸部和与数据磁道之间的空间的位置相对应的凹部组成的凹凸图案结构，并且用于控制晶体取向的基层和磁记录层沿着凹凸图案结构在凹凸部上堆叠而没有空隙。

4. 发明申请

US20070116989A1 Magnetic recording media, its fabrication technique, and hard disk drive 审中-公开
标题翻译：磁记录介质，其制造技术和硬盘驱动器
公开(公告)号：US20070116989A1
公开(公告)日：2007-05-24
申请号：US11602957
申请日：2006-11-22
申请人： Hiroshi Ikekame , Yuko Tsuchiya , Masukazu Igarashi
发明人： Hiroshi Ikekame , Yuko Tsuchiya , Masukazu Igarashi
IPC分类号： G11B5/66 , B05D5/12
CPC分类号： G11B5/855
摘要： Provided is a medium fabrication technique, a recording medium and a hard disk drive, which achieve high recording density. To this end, (a) a magnetic layer is deposited on a substrate, and (b) a nano particle layer is deposited on the magnetic layer. Then, (c) the magnetic layer is etched by use of the nano particle layer as a mask, and (d) the nano particle layer is removed to form artificial magnetic grains, and thus an artificial granular magnetic recording medium is obtained.
摘要翻译：提供了一种实现高记录密度的介质制造技术，记录介质和硬盘驱动器。为此，（a）磁性层沉积在基底上，（b）纳米颗粒层沉积在磁性层上。然后，（c）通过使用纳米粒子层作为掩模蚀刻磁性层，（d）除去纳米粒子层，形成人造磁性粒子，得到人造粒状磁记录介质。

5. 发明申请

US20050128618A1 Overshoot current phase/amplitude control for hard disk drive write current 失效
公开(公告)号：US20050128618A1
公开(公告)日：2005-06-16
申请号：US11041228
申请日：2005-01-25
申请人： Hiroshi Ikekame , Takeo Yamashita
发明人： Hiroshi Ikekame , Takeo Yamashita
IPC分类号： G11B5/09 , G11B5/00 , G11B5/012 , G11B5/02 , G11B20/10
CPC分类号： G11B5/012 , G11B5/02 , G11B20/10009 , G11B2005/0013
摘要： Devices and methods for generating a magnetic head-specific overshoot current which is combined with an alternating current waveform into a write current used by the magnetic head to store information on a magnetic medium. A processor analyzes the frequency of incoming write data and retrieves from a data table of an overshoot current amplitude and an overshoot current phase. This amplitude and phase information is sent to an overshoot current generator to generate an overshoot current that is responsive to the dynamic impedance properties of a magnetic write head during operation. The data table may have information related to one or many write heads, and the data table may be further subdivided based on additional dynamic characteristics of a write head that may affect the impedance thereof.

6. 发明申请

US20050063097A1 Magnetic disk drive 失效
标题翻译：磁盘驱动器
公开(公告)号：US20050063097A1
公开(公告)日：2005-03-24
申请号：US10961035
申请日：2004-10-12
申请人： Yohji Maruyama , Hiroshi Ikekame , Hisashi Takano
发明人： Yohji Maruyama , Hiroshi Ikekame , Hisashi Takano
IPC分类号： G11B5/60 , G11B5/48
CPC分类号： G11B5/486 , G11B5/484
摘要： Magnetic disk apparatus includes an electric wiring capable of satisfying an electric condition under which high frequency recording higher than or equal to 200 MHz, a magnetic head having at least a recording device to a magnetic recording medium, and also the electric wiring corresponding to a recording current supplying device to this magnetic head are formed on a suspension member for mechanically suspending the magnetic head, the recording current being supplied to a magnetic head recording device by employing such electric wiring, the characteristic impedance of which is higher than a maximum impedance of the magnetic head recording device.
摘要翻译：磁盘装置包括能够满足高于或等于200MHz的高频记录的电气条件的电线，至少具有至磁记录介质的记录装置的磁头以及对应于记录的电线该磁头的电流供给装置形成在用于机械地悬挂磁头的悬挂构件上，记录电流通过采用这种电线被提供给磁头记录装置，其特性阻抗高于该磁头的最大阻抗磁头记录装置。

7. 发明申请

US20050007093A1 Current measurement technique and current measurement apparatus 失效
标题翻译：电流测量技术和电流测量装置
公开(公告)号：US20050007093A1
公开(公告)日：2005-01-13
申请号：US10911615
申请日：2004-08-05
申请人： Hiroshi Ikekame
发明人： Hiroshi Ikekame
IPC分类号： G01R15/24 , G01R19/00 , G01N27/416
CPC分类号： G01R15/243
摘要： A current measurement method for measuring a current that flows in a transmission line of an electric circuit including steps of installing a magnetooptical device in a magnetic field which is generated based upon current that flows in the transmission line, making a polarized light on the magnetooptical device, and acquiring a current based upon the variation of the polarization of reflected light from the magnetooptical device on which the polarized light is incident.
摘要翻译：一种用于测量在电路的传输线中流动的电流的电流测量方法，包括以下步骤：在基于在传输线中流动的电流产生的磁场中安装磁光器件，使得偏振光在磁光设备上并且基于来自偏振光入射的磁光装置的反射光的偏振的变化来获取电流。

8. 发明授权

US06661613B2 Magnetic disk drive 有权
公开(公告)号：US06661613B2
公开(公告)日：2003-12-09
申请号：US10318114
申请日：2002-12-13
申请人： Yohji Maruyama , Hiroshi Ikekame , Hisashi Takano
发明人： Yohji Maruyama , Hiroshi Ikekame , Hisashi Takano
IPC分类号： G11B555
CPC分类号： G11B5/486 , G11B5/484
摘要： Magnetic disk apparatus includes an electric wiring capable of satisfying an electric condition under which high frequency recording higher than or equal to 200 MHz, a magnetic head having at least a recording device to a magnetic recording medium, and also the electric wiring corresponding to a recording current supplying device to this magnetic head are formed on a suspension member for mechanically suspending the magnetic head, the recording current being supplied to a magnetic head recording device by employing such electric wiring, the characteristic impedance of which is higher than a maximum impedance of the magnetic head recording device.

9. 发明授权

US06833694B2 Current measurement technique and current measurement apparatus 有权
标题翻译：电流测量技术和电流测量装置
公开(公告)号：US06833694B2
公开(公告)日：2004-12-21
申请号：US10603627
申请日：2003-06-26
申请人： Hiroshi Ikekame
发明人： Hiroshi Ikekame
IPC分类号： G01R3100
CPC分类号： G01R15/243
摘要： The object of the invention is to provide technique and an apparatus for precisely measuring high frequency current that flows in a transmission line of a small impedance load circuit. A current waveform can be measured in wide bandwidth (at high-time resolution) and at high sensitivity without processing DUT (nondestructive) and without having an effect of the impedance of the apparatus (noninvasive) by installing a magnetooptical device in a magnetic field generated based upon current that flows in the transmission line, applying a bias magnetic field to the magnetooptical device by a magnetic field generator, making polarized light incident under the control of a position so that detection sensitivity is maximum and detecting the variation of polarization included in reflected light from the magnetooptical device.
摘要翻译：本发明的目的是提供用于精确测量在小阻抗负载电路的传输线中流动的高频电流的技术和装置。可以在宽带宽（高分辨率）和高灵敏度下测量电流波形，无需处理DUT（非破坏性），并且通过在产生的磁场中安装磁光器件而不影响设备（无创）的阻抗。基于在传输线路中流动的电流，通过磁场发生器向磁光装置施加偏置磁场，使得在位置控制下入射的偏振光使得检测灵敏度最大并检测反射的包括的偏振变化来自磁光装置的光。

10. 发明授权

US06529348B2 Magnetic disk apparatus having an electric conducting path with a defined characteristic impedance and which interconnects a write element and a read/write integrated circuit 有权
标题翻译：具有具有限定特征阻抗的导电路径并且与写入元件和读/写集成电路互连的磁盘装置
公开(公告)号：US06529348B2
公开(公告)日：2003-03-04
申请号：US10126576
申请日：2002-04-22
申请人： Yohji Maruyama , Hiroshi Ikekame , Hisashi Takano
发明人： Yohji Maruyama , Hiroshi Ikekame , Hisashi Takano
IPC分类号： G11B555
CPC分类号： G11B5/486 , G11B5/484
摘要： The magnetic disk apparatus includes an electric wiring capable of satisfying an electric condition under which high frequency recording higher than or equal to 200 MHz can be accomplished. A magnetic head having at least a recording device for recording to a magnetic recording medium is provided as well as an electric wiring corresponding to a recording current supplying device for this magnetic head are formed on a suspension member for mechanically suspending the magnetic head. The recording current is supplied to a magnetic head recording device by employing such electric wiring, the characteristic impedance of which is higher than a maximum impedance of the magnetic head recording device.
摘要翻译：磁盘装置包括能够满足可以实现高于或等于200MHz的高频记录的电气条件的电线。具有至少一个用于记录到磁记录介质的记录装置的磁头被提供，并且与用于该磁头的记录电流供应装置对应的电线形成在用于机械地悬挂磁头的悬挂构件上。通过使用其特性阻抗高于磁头记录装置的最大阻抗的这种电线将记录电流提供给磁头记录装置。

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