Matches 1 - 50 out of 50
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7369369 Bidirectional micropositioning recording head for a magnetic storage device  
A recording head for use in magnetic storage devices is disclosed. The recording head includes a transducer that is bi-directionally movable with respect to a magnetic medium surface of the...
7312956 Micro-actuator, head gimbal assembly, and disk drive unit with the same  
A head gimbal assembly includes a slider, a rotatable micro-actuator and a suspension to load the slider and the rotatable micro-actuator. The rotatable micro-actuator horizontally rotates the...
7298593 Micro-actuator including a leading beam pivot part, head gimbal assembly and disk drive unit with the same  
A HGA includes a slider, a micro-actuator horizontally rotating the slider with a central portion of the slider as a rotation center, and a suspension to load the slider and the micro-actuator;...
7277258 Dual-stage actuator disk drive with optimal location of the movable portion of the secondary actuator  
A dual-stage actuator disk drive has both a rotary primary actuator and a rotary secondary actuator. When the primary actuator initiates a seek there are two torque components acting on the center...
7275303 Method for making a disc drive  
The upper voice coil motor magnet assembly ( 64 a ′) of a disk drive ( 10 ′) is magnetically aligned with the lower voice coil motor magnet assembly ( 64 b ′) using an alignment fixture ( 126...
7194795 Method for manufacturing a head suspension  
A head suspension or head suspension component for supporting a head slider over a rigid disk in a dynamic storage device and a method of manufacturing. The head suspension includes a head...
7082670 Method for actively controlling the gram load on a disk drive suspension assembly  
A method and apparatus for actively controlling the gram load on a disk drive suspension assembly and to a disk drive using the present disk drive suspension assembly. The gram load can be actively...
7051424 Method and apparatus for electrically and physically coupling a micro-actuator and slider to a hard drive arm suspension for component replacement after detachment from the suspension  
A system and method are disclosed for coupling a replacement micro-actuator to a drive arm suspension after a micro-actuator, such as a defective micro-actuator, has been detached from the suspension.
6950266 Active fly height control crown actuator  
A micro-actuator is comprised of a piezoelectric motor mounted on a flexure tongue with offsetting hinges, to perform a fine positioning of the magnetic read/write head. The substantial gain in the...
6903486 Balanced microdevice  
A balanced microdevice comprising a substrate, a movable structure overlying the substrate, an element and a lever assembly having a pivot and a lever coupled to and pivotable about the pivot. The...
6859346 Integrated bidirectional Recording head micropositioner for magnetic storage devices  
Transducer elements of recording heads for magnetic storage media are moved independently in either of two directions with respect to the slider of the recording head. The motion is controlled...
6798609 Magnetic microactuator with capacitive position sensor  
A disc drive system includes a recording disc rotatable about an axis, a slider supporting a transducing head for transducing data with the disc, and a dual-stage actuation assembly supporting the...
6765766 Bonding tub improved electromagnetic microactuator in disc drives  
A microactuator finely positions a transducing head carried by a slider adjacent a select radial track of disc. A frame of the microactuator includes a motor for altering the position of the slider...
6757140 Electrostatic microelectromechanical (MEM) microactuator for precise read/write head positioning  
A microelectromechanical (MEM) actuator incorporates a dual-stator design operated electrostatically in conjunction with a rotor to affect a fine positioning of a thin film magnetic read/write...
6735055 Microactuator structure with vibration attenuation properties  
A microactuator suspension supports a slider. The microactuator suspension has at least a first resilient support extending from a slider attachment pad to a suspension arm attachment pad. The...
6731462 Slider and head assembly  
A protective member, which covers a sensor portion, is positioned on a slider so that this sensor portion is in close proximity to the slider flying surface. Furthermore, a step is formed on the...
6697232 Bonded transducer-level electrostatic microactuator for disc drive system  
A slider assembly is operable to selectively alter a position of a transducing head with respect to a track of a rotatable disc having a plurality of concentric tracks. The slider assembly includes...
6683758 Fabrication method for integrated microactuator coils  
A method for fabricating an integrated coil-on-keeper assembly for use in a magnetic circuit to actuate a microactuator. The assembly is formed on a keeper substrate by patterning an insulator...
6674614 Method of fabricating electrically isolated metal MEMS beams and microactuator incorporating the MEMS beam  
A microactuator is formed by defining stator and rotor regions on a wafer. Isolation barriers are formed in the stator and rotor regions to define a isolation regions. Conductive suspension beam...
6671132 Microactuator magnetic circuit  
An improved microactuator magnetic circuit having a simplified assembly, reduced field leakage, and improved passivation methods is disclosed. To simplify assembly, a single magnet is polarized in...
6636388 Disc drive suspension having a moving coil or moving magnet microactuator  
A suspension includes a load beam having a main body and a transducer support element which is movable relative to the main body. A sheet of dielectric material extends along the load beam and...
6634083 Method of forming a magnet/keeper assembly for head level microactuator  
A method is used for forming a magnet keeper assembly for use in a microactuator. The method comprises forming a keeper from a ferromagnetic material where the keeper has a plurality of notches for...
6618217 System and method for determining the position of a device  
A position sensor includes a stationary platform and a moveable platform. The position sensor further includes at least one beam coupling the moveable platform to the stationary platform. The at...
6614628 Moving coil micro actuator with reduced rotor mass  
A disc drive has a disc rotatable about an axis, a slider carrying a transducing head for transducing data with a disc, and a dual stage actuation assembly supporting the slider to position the...
6600634 Micro actuator  
A micro actuator for moving a head device in a track direction of a recording medium by a magnetic force generated between the magnetic cores. In normal use, the micro actuator is mounted on an...
6541931 Dual stage positioning system using a shared voltage source  
A system for positioning a read/write head having a voice coil suitable for coarse control and a piezoelectric transducer (PZT) suitable for fine control. A voice coil control signal and a PZT...
6512313 Electromagnetic X-Y stage driver for nano data storage system and method for fabricating coils of the same  
An electromagnetic x-y stage driver for a nano data storage system and a method for fabricating the coils of the same are provided. In the electromagnetic x-y stage driver, a cantilever tip array...
6498706 Dual driving unit for a magnetic head carriage assembly and magnetic disk drive  
A head carriage assembly is provided. A secondary magnetic driving device situated on a side of a hub portion is of a movable coil type, and includes a movable coil and a magnetic circuit body. The...
6483671 Microintegrated structure with protection against contaminating particles  
The microstructure, of semiconductor material, includes a micromotor and an encapsulation structure. The micromotor is externally delimited by a first and a second faces, opposed to one another,...
6473274 Symmetrical microactuator structure for use in mass data storage devices, or the like  
A microactuator includes a base, first microactuator elements carried by the base, a platform attached to the base, second microactuator elements carried by the platform, and the first...
6469415 Balanced microdevice and rotary electrostatic microactuator use therewith  
A balanced microdevice that includes a substrate and at least one comb drive assembly having first and second comb drive members. The first comb drive member is mounted on the substrate and the...
6414823 Coil-structures for magnetic microactuator  
A microactuator for a disc drive includes a stator attached to the disc drive support structure, a rotor operatively attached to a slider, the rotor being movable with respect to the stator in a...
6414822 Magnetic microactuator  
A dual-stage actuation assembly for a disc drive includes a movable actuator arm controlled by an actuator motor. A suspension assembly is supported by the actuator arm, and includes a flexure. A...
6392848 Head carriage assembly and disk device incorporating thereof  
A head carriage assembly includes a head carriage having a magnetic head at a first end part and a bearing between the first end part and a second end part, the head carriage being pivotable about...
6362939 Balanced microactuator suspension  
A microactuator suspension supports a slider. The microactuator suspension has at least a first resilient support extending from a slider attachment pad to a suspension arm attachment pad. The...
6335850 Microactuator for fine positioning in a disc drive  
An actuator arm assembly is provided in a disc drive. The disc drive includes a disc with a surface for storing information and a first actuator for moving the actuator arm assembly relative to the...
6295185 Disc drive suspension having a moving coil or moving magnet microactuator  
A suspension includes a load beam having a main body and a transducer support element which is movable relative to the main body. A sheet of dielectric material extends along the load beam and...
6268984 Magnet configuration for head-level microactuator  
A microactuation system is disclosed for selectively altering a position of a transducing head carried by a slider in a disc drive system with respect to a track of a rotatable disk having a...
6256175 Magnetic shielding for electromagnetic microactuator  
A disc drive microactuation system finely positions a transducing head carried by a slider adjacent a selected radial track of a rotatable disc. An electromagnetic microactuator having a stator and...
6222706 Flexure microactuator  
A mechanism is provided to position a transducing bead with respect to a selected radial track of a rotatable recording disc in a disc drive including an actuator arm and a suspension load beam...
6178069 Microactuator and method of manufacturing the same  
A microactuator includes a pair of stationary elements, a movable element, and a plurality of springs. The stationary elements are fixed to a substrate. The movable element is movably arranged on...
6163434 Piezoresistive position sensors embedded in disc drive microactuator  
A disc drive has a recording disc rotatable about an axis, a slider supporting a transducing head for transducing data with the disc and a dual-stage actuation assembly supporting the slider and...
6157521 Recording/reproducing head positioning mechanism  
The two-stage actuator comprises a fine actuator 2 with an HGA 1, and a coarse actuator 10, which supports the fine actuator 2 secured to it and is rotatably supported. The fine actuator 2 includes...
6122149 Magnetic microactuator and inductive sensor having shaped pole configuration  
A microactuator for radially positioning a transducing head over a selected radial track of a rotatable disc in a disc drive system having a flexure to support a slider carrying the transducing...
6088194 Dual mode actuator  
A dual mode actuator has an arm assembly mounted on a pivot. The arm assembly has a first arm with a first proximal flex region next to the pivot and a distal flex region at the other end of the...
5936805 Disk drive with secondary VCM actuator  
An active mount plate having a secondary electromagnetic (voice coil motor, VCM) actuator controls the fine positioning of a magnetic read/write head relative to a magnetic disk. The active mount...
5901010 Magnetic disc recording system employing two stage actuators for simultaneous accesses through multiple recording heads  
A magnetic disc storage system employing two stage actuators for simultaneously positioning recording heads over the top and bottom surfaces of the disc is disclosed. The recording heads are...
5867347 Head suspension with stacked coil microactuator for tracking axis adjustment of a read/write head  
A disk drive suspension for mounting to the end of an actuator arm. The suspension includes a load beam having a rigid region, a proximal end, a flexure for receiving and supporting a read/write...
5798893 Head drum assembly for use in a video cassette recorder  
A head drum assembly, for use in a video cassette recorder, comprises a rotary drum provided with a circumferential side wall and at least one opening provided thereon, a pair of heads each of...
5216559 Carrier structure for read/write heads  
An electromagnetic read/write head carrier structure is disclosed which permits micro-positioning of the heads carried thereon. The carrier structure incorporates a movable subframe mounted in a...
Matches 1 - 50 out of 50