Class 360/290 - For adjusting head position

Subclass of Class 360 - Dynamic magnetic information storage or retrieval
Definition: Subject matter wherein the positioning structure allows
No. of patents: 37
Last issue date: 05/29/2012

Number	Title	Issue Date
8189300	Multi-layer capacitive transducer with mult-dimension operation A capacitive transducer of multi-layer construction includes at least one rotor plate supported by flexible springs, A number of improvements are disclosed including a hollow rotor plate structure for reduced moving mass, buckling resistant features for the springs,...	05/29/2012
8094415	Disk drive suspension A suspension is provided with a base plate, load beam, and flexure. The base plate includes a boss portion, a first region situated on a side closer to a slider with respect to a center of the boss portion, and a second region situated on a side more remote from the...	01/10/2012
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 magnetic storage medium, thereby enabling improved positioning of the transd...	05/06/2008
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 slider with a central portion of the slider as an axis, which includes a ...	12/25/2007
7289302	On slider inductors and capacitors to reduce electrostatic discharge damage A slider for use in a magnetic disk drive includes read pads for connecting to a flexible circuit that couples to a pre-amplifier circuit, a transducer, and a protector connected to the transducer and the read pads to protect the transducer against damage from elect...	10/30/2007
7274540	Magnetoresistive head having an MR element between a pair of shields and including first and second underlayers A magnetoresistive device includes a first shield layer and a second shield layer disposed at a specific distance from each other, an MR element disposed between the first and second shield layer, and an underlying layer disposed between the first shield layer and t...	09/25/2007
7268986	Double tunnel junction using self-pinned center ferromagnet A double tunnel junction TMR magnetoresistive sensor having first and second magnetic free layers separated by a self pinned magnetic layer. The self pinned magnetic layer is separated from the first and second free layers by thin barrier layers. The pinned layer ma...	09/11/2007
7256967	Micro-actuator, head gimbal assembly, disk drive unit and manufacturing method thereof A head gimbal assembly (HGA) including a slider, a micro-actuator and a suspension to load the slider and the micro-actuator. The micro-actuator includes a support base and a piezoelectric unit used for both position displacement adjustment and flying height adjustm...	08/14/2007
7248442	Integrated recording head micropositioner using off-axis flexure bending 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 magnetic storage medium, thereby enabling improved positioning of the transd...	07/24/2007
7240417	Collocated metal frame PZT micro-actuator with a lower stiffness suspension design and method of manufacture of same A framing assembly with lower stiffness design and a method of manufacturing that framing assembly are disclosed. In one embodiment, a framing assembly pattern is cut from a piece of a thin planar material, such as metal. The pattern is then bent to form a framing a...	07/10/2007
7230802	Method and apparatus for providing magnetostriction control in a freelayer of a magnetic memory device A method and apparatus for providing magnetostriction control in a free layer of a magnetic memory device is disclosed. The same target compositions for the free layers may be used, but the relative thickness values are modified to obtain a desired magnetostriction ...	06/12/2007
7218471	Self-servo writing using recording head micropositioner Servo tracks are written onto different disk surfaces using multiple recording heads within a disk drive without requiring a servo writing machine or clean room conditions. Microactuators in the reference heads in the disk drive are capable of independent motion wit...	05/15/2007
7164261	Resonance-frequency measuring method determining a resonance frequency by counting the number of off-track occurrences A resonance-frequency measuring method is used for measuring a resonance frequency of an information recording/reproducing device reproducing information recorded on a medium by driving a mechanism unit. The resonance-frequency measuring method includes the measurin...	01/16/2007
7159300	Method for manufacturing a suspension design for a co-located PZT micro-actuator A micro-actuator that reduces suspension tongue stiffness and a method of manufacturing the micro-actuator are disclosed. In one embodiment, the micro-actuator has a base piece with two arms extending from the base piece. The electric contact pads for the arms are s...	01/09/2007
7149060	Actuation device and method for high density hard disk drive head A disk drive apparatus. The apparatus has a first drive device and a support member coupled to the first drive device. The support member has a tongue portion and a gimbal portion. The tongue portion is coupled the gimbal portion. A fixed drive device is formed with...	12/12/2006
7088559	Integrated interconnect and method of manufacture therefor An integrated interface structure for a nested body to provide an electrical connection. The interface structure includes nested bond pads which electrically interface with leads. The nested bond pads are fabricated on a microstructure to provide an interface to dri...	08/08/2006
7057857	Dimple pivot post for a rotary co-located microactuator A rotary microactuator-based head-gimbal assembly design controls the unwanted deflection of a flexure in a data storage device and eliminates hinge deformation. The head-gimbal assembly maintains the co-planarity of the hinged islands in the microactuator under the...	06/06/2006
7050267	Head-gimbal assembly of hard disk drive A head-gimbal assembly of a hard disk drive includes a loadbeam connected to a pivot arm, a slider on which a magnetic head is mounted, an elastic support member having one end coupled to the loadbeam and the other free end portion at which the slider is supported, ...	05/23/2006
7036732	Universal ticket transport A Universal Ticket Transport (UTT) 10, 150 may be configured to read from and write to many types of magnetically encoded tickets 20 currently used in fare collection systems. The UTT 10, 150 includes a mechanical insertion interface and automat...	05/02/2006
6937428	Reducing actuator arm oscillation during settle mode in a disc drive servo system An apparatus and method for compensating actuator arm oscillation induced by resonance mode excitation during a seek in a disc drive data handling system. The actuator arm supports a head adjacent a recording surface, and a servo loop controls the position of the ac...	08/30/2005
6927945	Collocated metal frame PZT micro-actuator with a lower stiffness suspension design A framing assembly with lower stiffness design and a method of manufacturing that framing assembly are disclosed. In one embodiment, a framing assembly pattern is cut from a piece of a thin planar material, such as metal. The pattern is then bent to form a framing a...	08/09/2005
6914746	High sustained data rate storage devices having microactuator Multiple recording heads are used to perform parallel read and write operations on multiple disk surfaces in disk drives. Small-scale actuators are positioned between the transducer and the macroactuator that moves the entire head gimble assembly. The small-scale ac...	07/05/2005
6747267	Static attitude measurement system for head suspension assemblies A static attitude measurement device measures the static attitude of a target, such as a head suspension assembly or component, and reduces the possibility of measurement errors due to stray spots and internal reflections. The device includes a light source for prod...	06/08/2004
6646436	HDD head holding apparatus with heat compensation The support that bears and positions the head in a head holding apparatus is further supported by a heat-compensating member, so that when the support is expanded by the heat source of the head holding apparatus, the heat-compensating member expands in th...	11/11/2003
6566832	Method and apparatus for parking a read/write head during power interruptions by dynamic sequencing An apparatus for parking a read/write head during power interruptions and methods of operating the same result in a hard disk drive apparatus that reduces the time to steady state the operating hard disk drive. The apparatus for reducing the time to stead...	05/20/2003
6496320	Adaptive attenuation of multi-axis vibrational disturbance Apparatus and method for attenuating effects of externally generated vibration applied along multiple axes of a disc drive. The disc drive includes a disc with a recording surface, a read/write head and a servo circuit which detects and corrects head posi...	12/17/2002
6442005	Light diffusion preventing structure A light diffusion preventing structure, suitable for use in vehicles, is provided on a structural member having a hole for passing light from a light source through the structural member and onto a target area. The hole has a three-dimensional shape that ...	08/27/2002
6262868	Method and structures used for connecting recording head signal wires in a microactuator A rotary microactuator includes a stationary structure formed on a substrate, a movable structure, and at least a pair of wires connected to the movable structure that conduct a signal associated with the movable structure. Each wire of the pair of wires ...	07/17/2001
6239947	Milliactuator with integrated sensor and drivers and method of manufacturing the same A milliactuator integrated with driver and relative position error sensor circuits formed on a single silicon substrate. The integrated milliactuator/electronics module is positioned between the suspension and the slider/transducer assembly to provide rap...	05/29/2001
6215629	Unitary synchronous flexure microactuator A dual-stage actuation assembly for a disc drive includes a movable actuator arm and a load beam connected to the actuator arm. A microactuator is attached to the load beam, and includes a first bending motor, a second bending motor and a slider support s...	04/10/2001
6137655	Cassette adaptor with adjustable magnetic head A cassette adaptor is disclosed, in which a head holder unit comprises a head holder for holding a magnetic head and a dummy tape frame having dummy tape members, and pins of the dummy tape frame are inserted into holes of the head holder thereby to faste...	10/24/2000
6111728	Device for mounting a head support on a head disc A device for mounting a head support (12), which carries a magnetic head (13) at its front, on a head disc (15). The head support (12) is mounted in a separate housing (10) and the housing (10) is secured to the head disc (15) in order to improve the reli...	08/29/2000
4358103	Magnetic card transporting apparatus This invention provides a reference member for supporting and giving reference positions to principal components, i.e. a feed roller for transporting magnetic cards, a driver for driving said feed roller and a member for pressing magnetic cards against th...	11/09/1982
4167664	Adjustable read head assembly An improved assembly is disclosed for adjustably mounting a read-write head in a card reader apparatus so as to compensate for warped and inaccurate cards without yielding erroneous data. The subject assembly includes a head carrying frame member, an inte...	09/11/1979
4031634	Teaching device A device employing audio and visual aids for the teaching of reading, arithmetic and the like. The device is to be used with cards having printed indicia and a magnetic strip. The device includes a housing having a microphone, a speaker and a chassis posi...	06/28/1977
4003092	Reading or writing head positioning device A device for adjusting position of a head for reading out or writing in. The device includes an eccentrically rotatable member which moves the head so as to change its position relative to a recording medium and an actuating member for eccentrically rotat...	01/11/1977
3964826	Dual sound system A Super-8 mm. movie film with two amplitude modulated optical sound tracks, one in each margin of the film. A method for optically recording and reproducing audio information with high fidelity on a very narrow sound track. A scanning apparatus has lens a...	06/22/1976

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Class 360/290 - For adjusting head position