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    Magnetic disk device with improved shielding
    51.
    发明申请
    Magnetic disk device with improved shielding 失效
    具有改进屏蔽的磁盘设备

    公开(公告)号：US20060056104A1

    公开(公告)日：2006-03-16

    申请号：US11222566

    申请日：2005-09-09

    申请人： Takehiko Eguchi ,  Masayuki Kurita ,  Toshihiko Shimizu ,  Mikio Tokuyama

    发明人： Takehiko Eguchi ,  Masayuki Kurita ,  Toshihiko Shimizu ,  Mikio Tokuyama

    IPC分类号： G11B17/00

    CPC分类号： G11B33/1493

    摘要： Embodiments of the invention provide a magnetic disk device which improves the shielding function for the magnetic heads yet maintaining a form factor relying upon an inexpensive constitution. In one embodiment, a magnetic disk device comprises a rotary disk-type magnetic disk; a magnetic head for recording or reproducing information; a magnetic head support mechanism for supporting the magnetic head; a shroud having an opening in which the magnetic head support mechanism is inserted, and surrounding the outer circumference of the magnetic disk; and a housing. The housing includes a base and a cover, and accommodates the magnetic disk, the magnetic head, the magnetic head support mechanism and the shroud. The base is constituted by using a nonmagnetic material and the shroud is constituted by using a magnetic material.

    摘要翻译： 本发明的实施例提供了一种磁盘装置，其改进了磁头的屏蔽功能，同时保持了依靠廉价构造的形状因素。 在一个实施例中，磁盘装置包括旋转盘式磁盘; 用于记录或再现信息的磁头; 用于支撑磁头的磁头支撑机构; 具有开口的护罩，其中磁头支撑机构插入其中，并围绕磁盘的外周; 和住房。 壳体包括基座和盖，并且容纳磁盘，磁头，磁头支撑机构和护罩。 底座由使用非磁性材料构成，护罩由磁性材料构成。

    Disc drive device
    52.
    发明授权
    Disc drive device 有权
    光盘驱动器

    公开(公告)号：US07894149B2

    公开(公告)日：2011-02-22

    申请号：US12322026

    申请日：2009-01-27

    申请人： Hiroyasu Masuda ,  Yoshihiko Maeda ,  Kenichi Kuramoto ,  Masayuki Kurita ,  Kenji Kuroki

    发明人： Hiroyasu Masuda ,  Yoshihiko Maeda ,  Kenichi Kuramoto ,  Masayuki Kurita ,  Kenji Kuroki

    IPC分类号： G11B27/36 ,  G11B20/10 ,  G11B21/02

    CPC分类号： G11B19/046 ,  G11B5/40 ,  G11B5/581 ,  G11B5/6029 ,  G11B5/6064 ,  G11B33/1406

    摘要： Embodiments of the present invention precisely measure clearance variation by temperature change using a value in a RW channel. In an embodiment of the present invention, an HDD measures resolution by signals in a RW channel. The measured resolution shows variations depending on temperature according to two factors. One factor is the clearance variation depending on the temperature and the other is the variation in operational property of the RW channel depending on the temperature. The HDD compensates for the temperature variation of the resolution according to the two factors. The HDD uses two kinds of sensed temperature. One corresponds to the temperature inside an enclosure in which head sliders are provided and the other corresponds to the temperature of the chip in which the RW channel is implemented. Sensing the drive temperature and the channel temperature independently achieves precise compensation for the variation in the measured resolution caused by clearance variation and channel property.

    摘要翻译： 本发明的实施例使用RW通道中的值精确地测量通过温度变化的间隙变化。 在本发明的实施例中，HDD通过RW信道中的信号来测量分辨率。 测量的分辨率根据两个因素显示出根据温度的变化。 一个因素是取决于温度的间隙变化，另一个因素是RW通道的操作性能随温度的变化。 HDD根据两个因素补偿分辨率的温度变化。 HDD使用两种感测温度。 一个对应于其中提供磁头滑块的外壳内的温度，另一个对应于实现RW通道的芯片的温度。 感测驱动温度和通道温度独立地对由间隙变化和通道特性引起的测量分辨率的变化进行精确补偿。

    Suspension having magnetic head assembly mounted thereon and magnetic recording disk drive using the suspension
    55.
    发明授权
    Suspension having magnetic head assembly mounted thereon and magnetic recording disk drive using the suspension 有权
    具有安装在其上的磁头组件的悬架和使用悬架的磁记录盘驱动器

    公开(公告)号：US07375913B2

    公开(公告)日：2008-05-20

    申请号：US11476451

    申请日：2006-06-27

    申请人： Naoki Satoh ,  Masayuki Kurita ,  Mikio Tokuyama ,  Junguo Xu

    发明人： Naoki Satoh ,  Masayuki Kurita ,  Mikio Tokuyama ,  Junguo Xu

    IPC分类号： G11B5/11

    CPC分类号： G11B5/6064 ,  G11B5/4853 ,  G11B5/607

    摘要： A suspension having a magnetic head assembly 1 mounted thereon is provided, wherein the magnetic head assembly comprises: a write head 1-2; a read head 1-1; and a resistive heating element 1-3 for controlling the flying heights of the magnetic heads, wherein the wires HTx and GTx for the resistive heating element is disposed such that they sandwich the wires RxX and RxY for the read head. The wires for the resistive heating element may be disposed between the wires for the write head and the wires for the read head. Furthermore, the waveform of the current or voltage to the resistive heating element has a time constant of 1 μsec or more, the resistive heating element having wires disposed near the wires of the read head.

    摘要翻译： 提供了一种其上安装有磁头组件1的悬架，其中磁头组件包括：写头1-2; 读头1 - 1; 以及用于控制磁头的飞行高度的电阻加热元件1-3，其中用于电阻加热元件的电线HTx和GTx被设置成使得它们夹着读头的导线RxX和RxY。 用于电阻加热元件的导线可以设置在用于写头的导线和读头的导线之间。 此外，电阻加热元件的电流或电压的波形的时间常数为1个或更多，电阻加热元件具有配置在读取头的导线附近的布线。

    Suspension having magnetic head assembly mounted thereon and magnetic recording disk drive using the suspension
    56.
    发明授权
    Suspension having magnetic head assembly mounted thereon and magnetic recording disk drive using the suspension 有权
    具有安装在其上的磁头组件的悬架和使用悬架的磁记录盘驱动器

    公开(公告)号：US07088543B2

    公开(公告)日：2006-08-08

    申请号：US10676677

    申请日：2003-09-30

    申请人： Naoki Satoh ,  Masayuki Kurita ,  Mikio Tokuyama ,  Junguo Xu

    发明人： Naoki Satoh ,  Masayuki Kurita ,  Mikio Tokuyama ,  Junguo Xu

    IPC分类号： G11B5/11

    CPC分类号： G11B5/6064 ,  G11B5/4853 ,  G11B5/607

    摘要： A suspension having a magnetic head assembly 1 mounted thereon is provided, wherein the magnetic head assembly comprises: a write head 1-2; a read head 1-1; and a resistive heating element 1-3 for controlling the flying heights of the magnetic heads, wherein the wires HTx and GTx for the resistive heating element is disposed such that they sandwich the wires RxX and RxY for the read head. The wires for the resistive heating element may be disposed between the wires for the write head and the wires for the read head. Furthermore, the waveform of the current or voltage to the resistive heating element has a time constant of 1 μsec or more, the resistive heating element having wires disposed near the wires of the read head.

    摘要翻译： 提供了一种其上安装有磁头组件1的悬架，其中磁头组件包括：写头1-2; 读头1 - 1; 以及用于控制磁头的飞行高度的电阻加热元件1-3，其中用于电阻加热元件的电线HTx和GTx被设置成使得它们夹着读头的导线RxX和RxY。 用于电阻加热元件的导线可以设置在用于写头的导线和读头的导线之间。 此外，电阻加热元件的电流或电压的波形的时间常数为1个或更多，电阻加热元件具有配置在读取头的导线附近的布线。

    Perpendicular recording head with reduced thermal protrusion
    57.
    发明申请
    Perpendicular recording head with reduced thermal protrusion 失效
    垂直记录头具有减少的热突起

    公开(公告)号：US20060103982A1

    公开(公告)日：2006-05-18

    申请号：US11274853

    申请日：2005-11-14

    申请人： Kazuhiro Nakamoto ,  Kimitoshi Etoh ,  Masayuki Kurita

    发明人： Kazuhiro Nakamoto ,  Kimitoshi Etoh ,  Masayuki Kurita

    IPC分类号： G11B5/147

    CPC分类号： G11B5/314 ,  G11B5/1278 ,  G11B5/3136

    摘要： Embodiments of the invention secure a sufficiently large magnetic field, and deter a protrusion phenomenon of a perpendicular magnetic recording head, causing a problem in implementing a low flying height, while solving problems such as erasure of information in peripheral tracks. In one embodiment, a main pole or a stacked body made up of the main pole, and an auxiliary pole is deposited over an underlayer formed on a substrate so as to be in contact with the underlayer. On top of the main pole or the stacked body, there is deposited a coil, a return pole, and a read element in that order, thereby fabricating a perpendicular magnetic recording head. Further, an additional structure may be added such that an underlayer containing a metal is disposed between the substrate, and the main pole or the stacked body made up of the main pole, and the auxiliary pole, and a heat diffusion layer is disposed between portions of the coil and the substrate, or portions of the coil is disposed closer to the substrate than other portions of the coil.

    摘要翻译： 本发明的实施例确保了足够大的磁场，并且阻止垂直磁记录头的突出现象，导致实现低飞行高度的问题，同时解决诸如擦除外围轨道中的信息的问题。 在一个实施例中，由主极构成的主极或堆叠体和辅助极沉积在形成在基板上的底层上以与底层接触。 在主极或堆叠体的顶部，依次沉积线圈，返回极和读取元件，从而制造垂直磁记录头。 此外，可以添加另外的结构，使得在基板，主极或由主极和辅助极构成的层叠体之间设置包含金属的底层，并且将热扩散层设置在部分 线圈的一部分或线圈的部分比线圈的其它部分更靠近基板设置。

    Manufacturing apparatus for sheet-shaped molding material including a scattering and scraping roller
    59.
    发明授权
    Manufacturing apparatus for sheet-shaped molding material including a scattering and scraping roller 失效
    包括散射和刮擦辊的片状成型材料的制造装置

    公开(公告)号：US4950353A

    公开(公告)日：1990-08-21

    申请号：US291302

    申请日：1988-12-28

    申请人： Yasuhiro Tsujimoto ,  Masayuki Kurita ,  Masaru Aoki

    发明人： Yasuhiro Tsujimoto ,  Masayuki Kurita ,  Masaru Aoki

    IPC分类号： B29B15/10 ,  B28B1/52 ,  B29C70/50 ,  B29K105/06 ,  B29K309/08

    CPC分类号： B29C70/508 ,  Y10T156/1722 ,  Y10T156/1798

    摘要： An apparatus for continuously manufacturing a sheet of molded compound includes a first conveying unit for continuously conveying a lower film. First and second impregnation rollers are provided above the lower film for impregnating a viscous material and a solid material to obtain a compound mixture to be dropped onto the lower film. First and second scraping rollers are provided below the first and second impregnation rollers to scrape the compound mixture from the impregnation rollers. A scattering roller is provided below the first impregnation roller upstream from the first scraping roller relative the feed direction of the lower film. The scattering roller is positioned to act upon rotation to prevent scattering of portions of the composite mixture caused at least in part by the first scraping roller. A second conveying unit is provided for conveying an upper film. Included in the second conveying unit is a guide roller positioned below the second impregnation unit downstream the second scraping roller relative the feed direction of the lower film. The guide roller is positioned with the upper film disposed thereabout to prevent scattering of portions of the composite mixture caused at least in part by the second scrapping roller. Supply pipes are provided for supplying the viscous material which are disposed above the first and second impregnation rollers. Each supply pipe includes a plurality of openings which have varying opening areas to compensate for a decrease in an internal pressure of the supply pipe as the viscous material flows within the supply pipe.