公开(公告)号：US20070020487A1

公开(公告)日：2007-01-25

申请号：US11484692

申请日：2006-07-12

申请人： Chee-kheng Lim ,  No-yeol Park ,  Yong-su Kim ,  Hoon-sang Oh

发明人： Chee-kheng Lim ,  No-yeol Park ,  Yong-su Kim ,  Hoon-sang Oh

IPC分类号： G11B5/65 ,  B05D5/12

CPC分类号： G11B5/66 ,  G11B5/65 ,  G11B5/667 ,  G11B5/7379

摘要： Provided is a perpendicular magnetic recording medium. The perpendicular magnetic recording medium includes: a lower structure; and a recording layer formed on the lower structure, wherein the recording layer has a balancing force 2πMr2/K1 of 0.5 or less and a factor 4πMr/Hc of 0.8 or less where Mr denotes a remnant magnetization, K1 denotes a perpendicular magnetic anisotropy energy constant, and Hc denotes a coercive force. Accordingly, even though grain boundaries between grains that constitute the recording layer are somewhat non-uniform in width, the grains can have almost the same nucleation field. As a result, the perpendicular magnetic recording medium can ensure high recording density and stability of recorded information.

摘要翻译： 提供了一种垂直磁记录介质。 垂直磁记录介质包括：下结构; 以及形成在下部结构上的记录层，其中记录层具有0.5或更小的平衡力2piMr 2 / K 1和0.8或更小的因子4piMr / Hc，其中Mr表示残余磁化强度 ，K 1表示垂直磁各向异性能常数，Hc表示矫顽力。 因此，即使构成记录层的晶粒之间的晶界在宽度上有些不均匀，晶粒也可以具有几乎相同的成核场。 结果，垂直磁记录介质可以确保记录信息的高记录密度和稳定性。

公开(公告)号：US20070035885A1

公开(公告)日：2007-02-15

申请号：US11503297

申请日：2006-08-14

申请人： Young-hun Im ,  Yong-su Kim ,  No-yeol Park ,  Hoon-sang Oh

发明人： Young-hun Im ,  Yong-su Kim ,  No-yeol Park ,  Hoon-sang Oh

IPC分类号： G11B5/33

CPC分类号： G11B5/3116 ,  G11B5/11 ,  G11B5/112 ,  G11B5/1278 ,  G11B5/3146

摘要： A perpendicular magnetic head for recording a perpendicular magnetic recording medium is provided. The perpendicular magnetic head includes a main pole; a return pole, which has at least an end separated from the main pole; and a plurality of shields that surround the main pole and have a split structure.

摘要翻译： 提供用于记录垂直磁记录介质的垂直磁头。 垂直磁头包括主极; 一个返回杆，至少有一个与主杆分开的端部; 以及围绕主极并具有分割结构的多个屏蔽。

公开(公告)号：US07799445B2

公开(公告)日：2010-09-21

申请号：US11477624

申请日：2006-06-30

申请人： Hoon-sang Oh ,  Yong-su Kim ,  No-yeol Park ,  Hoo-san Lee ,  Chul-min Choi

发明人： Hoon-sang Oh ,  Yong-su Kim ,  No-yeol Park ,  Hoo-san Lee ,  Chul-min Choi

IPC分类号： G11B5/66

CPC分类号： G11B5/667

摘要： A perpendicular magnetic recording medium including a soft magnetic underlayer. The perpendicular magnetic recording medium includes: a lower structural body including an anti-ferromagnetic layer; a first soft magnetic underlayer, a non-magnetic layer, and a second soft magnetic underlayer sequentially formed on the anti-ferromagnetic layer, where the thickness ratio of the second soft magnetic underlayer to that of the first soft magnetic underlayer is designed to be within specific range; and a recording layer formed on the second soft magnetic underlayer. Therefore, noise generated on the soft magnetic underlayer due to external magnetic fields of a magnetic head and a voice coil motor can be reduced greatly.

摘要翻译： 包括软磁性底层的垂直磁记录介质。 垂直磁记录介质包括：包括反铁磁层的下结构体; 顺序地形成在反铁磁层上的第一软磁性底层，非磁性层和第二软磁性底层，其中第二软磁性底层与第一软磁性底层的厚度比被设计为在 具体范围 以及形成在第二软磁性底层上的记录层。 因此，可以大大降低由于磁头和音圈电机的外部磁场而在软磁性底层上产生的噪声。

公开(公告)号：US20070003795A1

公开(公告)日：2007-01-04

申请号：US11477624

申请日：2006-06-30

申请人： Hoon-sang Oh ,  Yong-su Kim ,  No-yeol Park ,  Hoo-san Lee ,  Chul-min Choi

发明人： Hoon-sang Oh ,  Yong-su Kim ,  No-yeol Park ,  Hoo-san Lee ,  Chul-min Choi

IPC分类号： G11B5/66

CPC分类号： G11B5/667

摘要： A perpendicular magnetic recording medium including a soft magnetic underlayer. The perpendicular magnetic recording medium includes: a lower structural body including an anti-ferromagnetic layer; a first soft magnetic underlayer, a non-magnetic layer, and a second soft magnetic underlayer sequentially formed on the anti-ferromagnetic layer, where the thickness ratio of the second soft magnetic underlayer to that of the first soft magnetic underlayer is designed to be within specific range; and a recording layer formed on the second soft magnetic underlayer. Therefore, noise generated on the soft magnetic underlayer due to external magnetic fields of a magnetic head and a voice coil motor can be reduced greatly.

摘要翻译： 包括软磁性底层的垂直磁记录介质。 垂直磁记录介质包括：包括反铁磁层的下结构体; 顺序地形成在反铁磁层上的第一软磁性底层，非磁性层和第二软磁性底层，其中第二软磁性底层与第一软磁性底层的厚度比设计为在 具体范围 以及形成在第二软磁性底层上的记录层。 因此，可以大大降低由于磁头和音圈电机的外部磁场而在软磁性底层上产生的噪声。

公开(公告)号：US06650510B2

公开(公告)日：2003-11-18

申请号：US09994804

申请日：2001-11-28

申请人： Yong-su Kim ,  No-yeol Park

发明人： Yong-su Kim ,  No-yeol Park

IPC分类号： G11B5127

CPC分类号： G11B5/11 ,  G11B5/3143

摘要： Provided is a magnetic head including a bottom pole, a top pole spaced a predetermined distance apart from the bottom pole, an inductive write coil for forming a magnetic field at the bottom and top poles, and a magnetic shield layer positioned over the top pole.

摘要翻译： 提供了一种磁头，其包括底极，与底极间隔预定距离的顶极，用于在底部和顶部极处形成磁场的感应写入线圈和位于顶部极上的磁屏蔽层。

公开(公告)号：US07791841B2

公开(公告)日：2010-09-07

申请号：US11649205

申请日：2007-01-04

申请人： Jin-gyoo Yoo ,  No-yeol Park

发明人： Jin-gyoo Yoo ,  No-yeol Park

IPC分类号： G11B21/21

CPC分类号： G11B5/6005

摘要： A head slider for a hard disk drive is disclosed. The slider includes an operation device associated with a read/write head and adapted to change the flying height between the read/write head and a disk in relation to temperature. The operation device may be formed from a material that expands and contracts in relation to temperature in order to change the flying height, or a material that undergoes bending deformation in relation to temperature in order to change the flying height.

摘要翻译： 公开了一种用于硬盘驱动器的磁头滑块。 滑动器包括与读/写头相关联的操作装置，并适于相对于温度改变读/写头与盘之间的飞行高度。 操作装置可以由相对于温度膨胀和收缩以改变飞行高度的材料形成，或者相对于温度经历弯曲变形的材料以改变飞行高度。

公开(公告)号：US07616400B2

公开(公告)日：2009-11-10

申请号：US11154515

申请日：2005-06-17

申请人： Yong-kyu Byun ,  No-yeol Park ,  Min-pyo Hong ,  Sang-min Suh ,  Byoung-gyou Choi

发明人： Yong-kyu Byun ,  No-yeol Park ,  Min-pyo Hong ,  Sang-min Suh ,  Byoung-gyou Choi

IPC分类号： G11B13/04

CPC分类号： G11B31/00 ,  G11B33/08 ,  G11B33/122 ,  G11B33/124 ,  H04M1/026 ,  H04M1/21

摘要： Provided are a hard disk drive (HDD) assembly and a mobile phone employing the HDD assembly. The HDD assembly includes: a HDD including a base member, a cover member, a spindle motor installed on the base member, at least one data storage disk mounted on the spindle motor, and an actuator pivotably installed on the base member and moving a read/write head to a predetermined position on the disk; a printed circuit board (PCB) disposed beside the HDD and operating the HDD; and a mounting bracket mounted on an electronic device while accommodating the HDD and the PCB, and including a first accommodating space adapted to accommodate the HDD and a second accommodating space disposed beside the first accommodating space and adapted to accommodate the PCB.

摘要翻译： 提供了硬盘驱动器（HDD）组件和采用HDD组件的移动电话。 HDD组件包括：HDD，包括基座构件，盖构件，安装在基座构件上的主轴电机，安装在主轴电机上的至少一个数据存储盘，以及可枢转地安装在基座构件上并移动读取 /写入磁盘上的预定位置; 布置在HDD旁边并操作HDD的印刷电路板（PCB）; 以及安装在电子设备上的安装支架，同时容纳HDD和PCB，并且包括适于容纳HDD的第一容纳空间和设置在第一容纳空间旁边并适于容纳PCB的第二容纳空间。

公开(公告)号：US07511920B2

公开(公告)日：2009-03-31

申请号：US11494464

申请日：2006-07-28

申请人： Yong-kyu Byun ,  Min-pyo Hong ,  Cheol-soon Kim ,  No-yeol Park

发明人： Yong-kyu Byun ,  Min-pyo Hong ,  Cheol-soon Kim ,  No-yeol Park

IPC分类号： G11B17/02

CPC分类号： G11B17/0287 ,  G11B17/038

摘要： A spindle motor assembly includes a spindle motor having a shaft and a hub that rotates on the shaft, and a hard disk having a data storage medium mounted in the form of a whole disk, and a fastener attached to the center of a bottom surface of the disk-shaped data storage medium that faces the spindle motor. The fastener is a screw or a nut. In the case in which the fastener is a screw, a head of the screw is attached to the bottom surface of the hard disk, and the body of the screw is received in a screw hole in the upper portion of the shaft of the spindle motor. In the case in which the fastener is a nut, the nut is engaged with an external thread on an outer circumferential surface of the hub of the spindle motor.

摘要翻译： 主轴电动机组件包括主轴电动机，该主轴电动机具有轴和在轴上旋转的轮毂，以及具有以整个盘的形式安装的数据存储介质的硬盘，以及附接到底盘表面的中心的紧固件 面对主轴电动机的盘状数据存储介质。 紧固件是螺钉或螺母。 在紧固件是螺钉的情况下，螺钉的头部附接到硬盘的底表面，螺钉的主体被容纳在主轴电机的轴的上部的螺纹孔中 。 在紧固件是螺母的情况下，螺母与主轴电机的轮毂的外周面上的外螺纹接合。

公开(公告)号：US20070159729A1

公开(公告)日：2007-07-12

申请号：US11649205

申请日：2007-01-04

申请人： Jin-gyoo Yoo ,  No-yeol Park

发明人： Jin-gyoo Yoo ,  No-yeol Park

IPC分类号： G11B5/56

CPC分类号： G11B5/6005

摘要： A head slider for a hard disk drive is disclosed. The slider includes an operation device associated with a read/write head and adapted to change the flying height between the read/write head and a disk in relation to temperature. The operation device may be formed from a material that expands and contracts in relation to temperature in order to change the flying height, or a material that undergoes bending deformation in relation to temperature in order to change the flying height.

摘要翻译： 公开了一种用于硬盘驱动器的磁头滑块。 滑动器包括与读/写头相关联的操作装置，并适于相对于温度改变读/写头与盘之间的飞行高度。 操作装置可以由相对于温度膨胀和收缩以改变飞行高度的材料形成，或者相对于温度经历弯曲变形的材料以改变飞行高度。

公开(公告)号：US5804904A

公开(公告)日：1998-09-08

申请号：US784869

申请日：1997-01-16

申请人： No-yeol Park ,  Seong-man Jang ,  Gun-hee Jang ,  Jin-yook Yoon

发明人： No-yeol Park ,  Seong-man Jang ,  Gun-hee Jang ,  Jin-yook Yoon

IPC分类号： H02K29/00 ,  H02K3/18 ,  H02K3/28 ,  H02K21/22 ,  H02K23/26 ,  H02K29/03 ,  H02K1/22

CPC分类号： H02K29/03 ,  H02K21/22 ,  H02K3/28

摘要： An improved 10-pole 9-slot brushless DC motor used as a spindle motor used in devices, such as a computer hard disk driver or a laser scanner, is provided which reduces cogging torque and improves driving torque. The motor includes a field magnet having an annular permanent magnet which is formed of 10 magnetic poles attached to each other in a radial orientation, for generating a flux field and an armature formed by winding an armature core formed of nine slots and nine salient-poles with windings connected in three phases. Also, the field magnet of the motor is rotated by the rotating magnetic field generated by the armature windings. Since the motor has a short cycle and low cogging torque, the motor is very stable. Also, torque ripple is low and the torque characteristics as a whole are improved, thus achieving high efficiency.

摘要翻译： 用作用于诸如计算机硬盘驱动器或激光扫描器的装置中的主轴电动机的改进的10极9槽无刷直流电动机，其减少齿槽转矩并提高驱动扭矩。 电动机包括具有环形永磁体的磁场磁体，该环形永磁体由径向定向彼此附接的10个磁极形成，用于产生磁通场，以及通过卷绕由9个槽和9个凸极组成的电枢铁芯而形成的电枢 绕组分三相连接。 此外，电动机的磁场磁体由电枢绕组产生的旋转磁场旋转。 由于电机具有短循环和低齿槽转矩，电机非常稳定。 此外，转矩脉动低，整体上的转矩特性提高，从而达到高效率。