Matches 1 - 50 out of 54 1 2 >
Match Document Document Title
7609476 Magnetic disk drive with isolation wall  
Embodiments of the invention provide a magnetic disk drive whose flexibility in the layout of components is enhanced in spite of the fact that a magnetic disk and a driving section such as the...
7587808 Method of coupling a voice coil motor to a base plate of a hard disk drive  
A method of coupling a voice coil motor to a bowl-type base plate of a hard disk drive is described for a hard disk drive including a voice coil motor having a coil coupled to a rear end portion of...
7262939 System, method, and apparatus for attaching top pole piece of a voice coil motor to a hard disk drive enclosure  
A top pole piece of a voice coil motor (VCM) is attached to a hard disk drive cover without screw fasteners and with minimal loss of VCM magnetic flux capacity. A pair of leaf springs are supported...
7151649 Arm-suspension-pivot bearing integral design  
A solid-state actuation mechanism for use in a data storage system. The actuation mechanism includes an anchor fixedly attached to a housing of the data storage system, a spring member including a...
7054110 Carriage arm assembly of disk drive  
A carriage arm assembly is disclosed that has a sub-assembly and a signal relay member that is arranged on a side surface of an arm portion of a carriage arm of the sub-assembly for connection...
6941641 Method for mounting an arm to an actuator  
A method for mounting removably secured actuator arms that include head suspensions to an actuator assembly spindle. Each arm is mounted to an actuator spindle via a spacer with an annular lip with...
6900961 Disk drive having a head disk assembly enclosure including insert molded components  
Disclosed is disk drive having a molded head disk assembly enclosure including insert molded components and methods for manufacturing the same. In one aspect, the invention may be regarded as a...
6831810 Disk drive enabling simultaneous assembly of HSA and disk pack  
A disk drive has an enclosure that includes a first portion and a second portion that is configured to mate with the first portion. A spindle motor is attached to the first portion and a disk is...
6760195 Intrinsically excitable actuator assembly  
A method and system for positionally displacing a transducer, or multiple transducers, over a location on a data storage medium is disclosed. An actuator assembly containing at least one actuator...
6560075 Disk drive with multiple actuators and reduced actuator interactions  
A multiple actuator disk drive is disclosed. The mechanical vibration in one actuator induced by motion in the second actuator is greatly reduced by providing an independent bearing shaft for each...
6289564 Method of making a piezoelectric microactuator for precise head positioning  
A slider assembly for selectively altering a position of a transducing head with respect to a track of a rotatable disc having a plurality of concentric tracks includes a slider body having a main...
6288878 Tolerance ring with high hoop strength to resist deformation  
A tolerance ring is disclosed which provides increased hoop strength and resistance to deformation. The tolerance ring is placed on a stationary post so as to circumferentially extend about an...
6147831 Servo track writer having a servo writer positioning arm with a vibration damper and a method of making a head disk assembly  
A servo track writer for a head disk assembly and a method of making the head disk assembly using the servo track writer are disclosed. The head disk assembly includes an enclosure having an...
6061208 Magnetic disc device with stopper on carriage to limit rotational movement of support spring  
A head positioning mechanism for a magnetic disc device includes a support spring having one end portion that supports a magnetic head, and the other end portion at which a rotating shaft is...
RE36016 Disc storage device having an integrated driving system  
The present invention relates to an integrated driving system for signal-processing devices, especially video devices (recorders), and other, preferably magnetic pulse recording devices, wherein...
5786963 Servo information recording method and apparatus for an enclosed data storage system  
A novel apparatus and method for recording servo information on a data storage disk disposed within a enclosed data storage system housing. A small access aperture is provided on the housing...
5666244 Rotary actuator assembly in a disk drive having a magnetic actuator arm latch  
A rotary actuator assembly in a magnetic disk drive unit capable of simultaneously realizing at low costs a reliable lock mechanism for an actuator and the improvement in gap magnetic flux density...
5636091 Magnetic disk apparatus  
A hard disk drive includes a casing and a cover closing a top opening of the casing. In the casing are arranged a magnetic disk, magnetic heads for recording and reproducing information on and from...
5583723 Flux generator for a rotary actuator motor with an integrated actuator latch for a disk drive  
A flux generator for a rotary actuator motor with an integrated magnetic latch is disclosed. A magnetically permeable return plate housing forms a first air gap for receiving a coil coupled to the...
5355268 Disk drive knife edge pivot  
A disk drive with a substantially spaced apart pivot configuration employing Knife Edge type pivot technology, or more specifically, at least one but preferably two contact points with relative...
5327312 Rotary actuator having cantilevered rotational axis  
An actuator having a rotary arm having a read/write head on one side of an axis of rotation and a drive mechanism for defining the axis of rotation, with the drive mechanism being on the side of...
5317559 Dual pivot disc drive apparatus and method  
A dual pivot mechanism for a disc drive having a base plate and an actuator arm driven by a pinion for moving a transducer head across a disc to read and write to the disc. One end of the pivot arm...
5283704 Rotary actuator for disk drive assemblies  
A rotary actuator utilized to read and/or write data on disks includes an integral, one piece support member for carrying a transducer head along a path over the surface of a disk in a disk drive...
5257151 Disc-drive with a rim-motor  
A disk/file for magnetic recording having overall dimensions of one quarter inch thick by about the size of a standard credit card with pin connectors for connecting into a receptacle such as for...
5251082 Miniaturized disk file pluggable into a card terminal  
A disk/file for magnetic recording having overall dimensions of one quarter inch thick by about the size of a standard credit card with pin connectors for connecting into a receptacle such as for...
5231557 Magnetic disk apparatus having rotary type actuator and a height reducing return spring  
A magnetic disk apparatus includes a magnetic head, a magnetic disk, and a rotary actuator to move the magnetic head onto the magnetic disk. The rotary actuator includes a center shaft fixed to a...
5218496 Magnetic disk drive with reduced disk-to-disk spacing and improved actuator design  
A magnetic disk drive employs a head actuator structure in which the heads are angularly offset from each other around the disk surfaces. This permits the disks to be more closely spaced in an...
5172282 Single motor data storage device utilizing centrifugal force and counteracting spring  
The present invention proposes a memory device comprising a fixed disc on the surface of which data may be stored, and rotating transducers or heads which may be positioned to access any location...
5172287 Magnetic disc apparatus having uniform torque imparting means for imparting uniform torque irrespective of rotational position of a head arm  
A swing head arm type magnetic disc apparatus includes a magnetic disc having a data R/W zone and a CSS zone, and is accommodated in a housing and a spindle rotably supported on the housing, a head...
5117318 Rotational positioner latch for a magnetic disc storage  
In addition to comprising swivel arms (15) carrying magnetic heads (4), a swivel member (12) seated rotationally movable in a rotational positioner for a magnetic disc storage comprises carrier...
5109310 Disk drive device with unified actuator assembly  
A magnetic disk drive device for reading from or writing to a magnetic disk having an actuator assembly composed of a yoke plate, an actuator housing magnetic heads, a stopper for restricting the...
5051855 Rotary actuator  
In a disc drive with an integrated casting comprising the housing for the stepper and spindle motors, the transducer is mounted on a normal bearing pivot assembly lightweight actuator arm and...
4995025 Spherical pivoting actuator for read/record head  
A low cost, low power, lightweight, low audible noise, high speed actuator for a read and/or record implement or portion thereof attached in a structure with a free end which is movable in multiple...
4979063 Design for an actuator arm for a disc drive  
A pivot bearing assembly for a disc drive including the combination of a bearing surrounded on one side by a wishbone-shaped end of the actuator arm, and on the other side by a biasing spring metal...
4967297 Magnetic disk head positioning device  
A magnetic disk driving device comprising a flexible disk-shaped magnetic recording medium; a first motor for rotating the magnetic recording medium; first and second head supporting members for...
4937693 Staggered heads for minimizing disk spacing in a disk drive  
A disk drive is provided in which the arm/head structures of the armstack are mounted in circumferentially spaced pairs, on individual projections of a rotatable actuator. The mounted pairs of...
4891722 Incremental stepping assembly for a rotary actuator  
A rotary actuator for testing of magnetic disks having a rotary arm pivotally attached to an actuator housing at a first end and having at least one transducer at an opposite end. The rotary arm is...
4860137 Flexure-mounted radial access apparatus for disk recorder/player  
Radial access apparatus for controlling the coarse and fine radial position of a read/write head relative to a data storage disk (e.g. optical, magneto-optical and magnetic disks) comprises a...
4845579 Disc drive incorporating automatic wear compensation for a pivoted arm  
In a disc drive, a lightweight, elongate actuator arm is provided supporting a high strength flexure. One end of the actuator arm carries a gear sector having teeth that mesh with a pinion carried...
4814916 Magnetic disc memory device  
A magnetic disc memory device comprises a magnetic head support member pivotably mounted on a shaft, gimbals fixedly supported by one end of the magnetic head support member, a magnetic head core...
4812934 Actuator for memory storage device  
In a magnetic disc device, it is necessary that a magnetic head be positioned above an object data track at a high speed and with a high accuracy. This positioning operation is carried out by an...
4796122 Integral head positioner for hard disk storage system  
The head positioner for a Winchester type hard disk drive digital storage system includes a main rotating metal body portion having outwardly extending, integral, head positioning arms. The...
4786994 Method of and apparatus for controlling the displacement of a movable system driven by an electric motor  
A DC motor drives a magnetic disk memory transducer head between a position proximate the disk periphery to an area on the disk where data are located during which time the head is lowered from an...
4755892 Method of and apparatus for displacing a movable system driven by an electric motor along a given trajectory  
A magnetic disk memory is moved between a first position beyond the disk periphery to a second position proximate the disk periphery while the head is at an idle height above the disk face. The...
4745504 Disc memory head positioner  
A friction driven head positioner system for a disk memory including a positioner arm with a flexural pivot end and a driven end on which read/write heads are mounted. The flexural pivot end is...
4739430 Apparatus for positioning a plurality of magnetic heads over preselected tracks of at least two recording disks  
The invention relates to an apparatus for positioning a plurality of scanning devices, in particular magnetic heads, over preselected tracks on a stack of at least two rotatable recording disks in...
4739422 Magnetic recording apparatus  
A magnetic recording apparatus including a base, a drive shaft mounted on the base for rotating a magnetic disc, a movable member adapted to reciprocate in a radial direction of the magnetic disc...
4692821 Disc memory storage apparatus and method  
A movable head support arm establishes a curved path and orientation for the head along a memory disc such that the head gap is maintained tangential to the path. A variable delay of the track...
4667258 Disk drive with multiple head cartridge  
A universal disk drive system (30) incorporates multiple read/write heads (204) supported on a rotatable carousel assembly (180) for selective positioning and alignment relative to a flexible...
4423446 Magnetic data recording and reading device with magnetic head positioning mechanism  
A magnetic data recording and reading device for a magnetic disk memory device including a spiral cam driven for rotation by a motor, a pivotal arm supporting a magnetic head at one end and a...
Matches 1 - 50 out of 54 1 2 >