公开(公告)号：US06229676B1

公开(公告)日：2001-05-08

申请号：US09192099

申请日：1998-11-13

申请人： Walter Lloyd Prater

发明人： Walter Lloyd Prater

IPC分类号： G11B553

CPC分类号： F16C33/765 ,  F16C2370/12 ,  F16J15/43 ,  G11B25/043

摘要： A ferrofluid seal for a hard disk drive actuator bearing has two circular plates which are axially spaced apart about a nonmagnetic pivot shaft of the actuator. The plates are parallel and in close proximity to one another. The upper plate is made of magnetically-conductive steel and is mounted to a stationary sleeve which surrounds the shaft. The lower plate is mounted to the shaft and has an annular magnet with pole pieces on an upper surface. A magnetic ferrofluid is located between the magnet and the upper plate to complete the magnetic circuit and form a seal. The ferrofluid seal prevents bearing emissions such as grease oil vapor and aerosol droplets from contaminating the disk drive.

摘要翻译： 用于硬盘驱动器致动器轴承的铁磁流体密封件具有围绕致动器的非磁性枢轴轴向间隔开的两个圆形板。 板平行并彼此靠近。 上板由导磁钢制成，并安装在围绕轴的静止套筒上。 下板安装在轴上，并具有在上表面上具有极片的环形磁体。 磁性铁磁流体位于磁体和上板之间，以完成磁路并形成密封。 铁磁流体密封件防止轴承排放物，如油脂汽油和气溶胶液滴污染磁盘驱动器。

公开(公告)号：US06185073B2

公开(公告)日：2001-02-06

申请号：US08427587

申请日：1995-04-24

申请人： Akio Murata ,  Hideaki Mukae ,  Takaaki Maegawa ,  Masaru Higashionji ,  Toshiharu Okada

发明人： Akio Murata ,  Hideaki Mukae ,  Takaaki Maegawa ,  Masaru Higashionji ,  Toshiharu Okada

IPC分类号： G11B553

CPC分类号： G11B5/6005 ,  G11B5/4826 ,  G11B5/588 ,  G11B5/592 ,  G11B5/59627

摘要： A head base has at least one head chip fixed thereto. A position of the head chip is adjusted to a predetermined position by applying a laser beam to the head base to cause plastic deformation of the head base. Appropriate laser radiation conditions are set depending upon a necessary amount of positional adjustment of the head chip fixed to the head base.

摘要翻译： 头座具有固定到其上的至少一个头部芯片。 通过将激光束施加到头部基座来引起头部基部的塑性变形，将头部芯片的位置调整到预定位置。 适当的激光辐射条件是根据固定在头部基座上的头部芯片的必要量的位置调节来设定的。

公开(公告)号：US06597539B1

公开(公告)日：2003-07-22

申请号：US09283368

申请日：1999-03-31

申请人： Steven Stupp ,  Richard Blanco ,  Timothy A. Riener

发明人： Steven Stupp ,  Richard Blanco ,  Timothy A. Riener

IPC分类号： G11B553

CPC分类号： G11B5/4826 ,  G11B5/4873 ,  G11B5/607

摘要： A suspension assembly for supporting a read/write head/slider assembly adjacent to a rotating storage disk with dynamically adjustable flying height for use within a hard disk drive is provided. The suspension assembly includes a generally elongated loadbeam that has a baseplate defined at a first end thereof and a gimbaled flexure portion defined at a second end thereof. The flexure portion includes a pair of flexure legs and a flexure tongue. The pair of flexure legs extend from the flexure tongue and each leg attaches to an opposite side of the loadbeam. The flexure tongue generally provides a mounting surface for the read/write head/slider assembly. Strips of thermal-expansion material are attached to the flexure portion. These strips are connected to a power source via a power conductor. When the strips are energized, they expand and deform a portion of the flexure portion. This deformation of the flexure portion is transposed to the read/write head/slider assembly for dynamically adjusting the flying height thereof.

摘要翻译： 提供一种用于支持与旋转存储盘相邻的读/写头/滑块组件的悬挂组件，其具有在硬盘驱动器内使用的动态可调的飞行高度。 悬架组件包括大致细长的负载梁，其具有限定在其第一端处的基板和限定在其第二端处的万向弯曲部分。 弯曲部分包括一对挠曲腿和挠曲舌。 一对弯曲腿从弯曲舌部延伸，每条腿连接到负载束的相对侧。 弯曲舌片通常为读/写头/滑块组件提供安装表面。 热膨胀材料带附接到挠曲部分。 这些条带通过电源导体连接到电源。 当带通电时，它们使弯曲部分的一部分膨胀和变形。 弯曲部分的这种变形被转置到读/写头/滑块组件，用于动态地调节其飞行高度。

公开(公告)号：US06574076B1

公开(公告)日：2003-06-03

申请号：US09662112

申请日：2000-09-14

申请人： Toshisada Koyama

发明人： Toshisada Koyama

IPC分类号： G11B553

CPC分类号： G11B5/5521 ,  F16C19/06 ,  F16C19/54 ,  F16C33/80 ,  F16C35/077 ,  F16C2240/46 ,  G11B5/4813

摘要： A pivot assembly for sustaining a magnetic head, a head suspension and an actuator block pivotally parallel to magnetic disks oscillates slowly. Hence the invention has been made in light of examining a sealing structure for retaining sufficient capability of preventing a leakage of lubricant and retaining sufficient capability of preventing a contamination of lubricant, characterized in that retaining required sealing capabilities, an annular shield plate is secured to the shaft, achieving pivot assembly manufacturing cost by reducing machining process and a number of sealing members.

摘要翻译： 用于维持磁头，头悬挂和枢转平行于磁盘的致动器块的枢轴组件缓慢振荡。 因此，本发明是鉴于检查密封结构以保持充分的防止润滑剂泄漏的能力并且保持足够的防止润滑剂污染的能力的特征，其特征在于保持所需的密封能力，环形屏蔽板被固定到 轴，通过减少加工过程和多个密封构件实现枢轴组件制造成本。

公开(公告)号：US06356416B1

公开(公告)日：2002-03-12

申请号：US09509825

申请日：2000-04-20

申请人： Jean-Baptiste Abertini

发明人： Jean-Baptiste Abertini

IPC分类号： G11B553

CPC分类号： G11B5/48 ,  G11B5/53

摘要： An assembly including at least one chip with an embedded magnetic head. A base and/or a cover includes at least partially a housing in which the at least one chip is embedded. Such an assembly may find particular application to a magnetic recording system.

摘要翻译： 一种包括至少一个具有嵌入式磁头的芯片的组件。 基座和/或盖子至少部分地包括嵌入至少一个芯片的壳体。 这样的组件可以发现特定应用于磁记录系统。

公开(公告)号：US06494637B2

公开(公告)日：2002-12-17

申请号：US09817101

申请日：2001-03-26

申请人： Alois Huber

发明人： Alois Huber

IPC分类号： G11B553

CPC分类号： G11B15/61 ,  G11B5/53 ,  G11B25/063 ,  G11B33/08 ,  Y10T403/478 ,  Y10T403/7073

摘要： In an apparatus (1) having a drive shaft (18) and having a disc-shaped support (17) which is rotationally locked to the drive shaft (18) the support (17) has two tubular projections (22, 23) each having a connecting zone (24, 25) in its interior, which connecting zone has a given height (H1, H2) and a given inner diameter (D1, D2), each of the two projections (22, 23) being connected to the drive shaft (18) by a press-fit in the area of its connecting zone (24, 25), and the two inner diameters (D1, D2) of the two connecting zones (24, 25) having different values.

摘要翻译： 在具有驱动轴（18）并且具有旋转地锁定到驱动轴（18）的盘形支撑件（17）的装置（1）中，支撑件（17）具有两个管状突起（22,23），每个具有 在其内部的连接区域（24,25），所述连接区域具有给定的高度（H1，H2）和给定的内径（D1，D2），所述两个突出部（22,23）中的每一个连接到所述驱动 轴（18）通过压配合在其连接区域（24,25）的区域中，并且两个连接区域（24,25）的两个内径（D1，D2）具有不同的值。

公开(公告)号：US06356417B1

公开(公告)日：2002-03-12

申请号：US09617532

申请日：2000-07-14

申请人： Masahiro Matsumaru

发明人： Masahiro Matsumaru

IPC分类号： G11B553

CPC分类号： G11B5/588 ,  G11B5/584

摘要： A rotary head drum device includes a rotary drum and a plurality of rotary heads mounted on the rotary drum. The rotary heads record and reproduce a signal on and from a magnetic tape. The rotary heads are as follows. First and second rotary heads for an information signal in a low-frequency range are opposed to each other diametrically with respect to the rotary drum, and are different from each other in azimuth angle. A third rotary head is designed for digital signals in frequency ranges higher than the frequency range of the information signal, and for first and second operation modes being different from each other in data transmission rate. A fourth rotary head for a digital signal in the second operation mode is opposed to the third rotary head diametrically with respect to the rotary drum, and is equal in azimuth angle to the third rotary head. A fifth rotary head for a digital signal in the first operation mode is substantially opposed to the third rotary head diametrically with respect to the rotary drum, and is different from the third rotary head in azimuth angle. The fourth and fifth rotary heads are in a double azimuth head structure. Sixth and seventh rotary heads for a digital signal in the second operation mode are opposed to each other diametrically with respect to the rotary drum, and are equal to each other in azimuth angle.

摘要翻译： 旋转磁头鼓装置包括旋转磁鼓和安装在旋转磁鼓上的多个旋转磁头。 旋转磁头在磁带上记录和再现信号。 旋转头如下。 用于低频范围内的信息信号的第一和第二旋转磁头相对于旋转磁鼓在径向上彼此相对，并且在方位角上彼此不同。 第三旋转磁头设计用于高于信息信号的频率范围的频率范围内的数字信号，并且第一和第二操作模式在数据传输速率方面彼此不同。 在第二操作模式下用于数字信号的第四旋转磁头相对于旋转磁鼓直径相对于第三旋转磁头，并且与第三旋转磁头的方位角相等。 在第一操作模式下用于数字信号的第五旋转头基本上与第三旋转头相对于旋转滚筒直径相对，并且在方位角上与第三旋转头不同。 第四和第五旋转磁头是双方位磁头结构。 在第二操作模式下用于数字信号的第六和第七旋转磁头相对于旋转磁鼓在径向上彼此相对，并且在方位角彼此相等。