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| Number | Title | Issue Date |
| 7609487 | Thin-film PZT micro-actuator integral with suspension of head gimbal assembly, and disk drive unit with the same A micro-actuator for a head gimbal assembly includes a support structure and a PZT element. The support structure includes a bottom support integrated with a suspension flexure of the head gimbal assembly, a top support adapted to support a slider of the head gimbal... | 10/27/2009 |
| 7595964 | Method for reducing off track head motion due to disk vibration in a hard disk drive through the head gimbal assembly Improved head gimbal assemblies reducing TMR (Track Mis-Registration) in a hard disk drive are provided. These head gimbal assemblies are as mechanically simple as contemporary head gimbal assemblies, support parallel flying sliders over flat disk surfaces, and redu... | 09/29/2009 |
| 7359154 | Method and apparatus for connecting a micro-actuator to driver arm suspension A system and method for connecting an actuator to a suspension element is disclosed. The actuator is electrically coupled using a silver paste. The silver paste is further covered by a coating application to provide structural support. A step, attached to either the... | 04/15/2008 |
| 7355305 | Small-size direct-acting actuator A direct-acting actuator is provided comprising a stator section (16), an attachment section (6) secured to the stator section, micro-beams (8, 10) extending from the attachment section, a rotor section (12) supported for swing motion by ... | 04/08/2008 |
| 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 |
| 7277259 | Magnetic head actuator including piezoelectric elements fixed to the arms of a fired glass-ceramic substrate A magnetic head actuator includes a head-holding substrate having a pair of movable arms for clamping a magnetic head, and piezoelectric elements fixed along the pair of movable arms to move the pair of movable arms in response to an applied voltage. The head-holdin... | 10/02/2007 |
| 7253993 | Head slider with precise positioning actuator and manufacturing method of the head slider A head slider with a precise positioning actuator includes a thin plane shaped head section provided with a first surface that is substantially perpendicular to an ABS of the head slider, a second surface opposite to the first surface and at least one head element f... | 08/07/2007 |
| 7248444 | Electromagnetic heads, flexures, gimbals and actuators formed on and from a wafer substrate Devices for reading or writing electromagnetic information include a wafer substrate piece disposed between an electromagnetic transducer and an electrostrictive or piezoelectric actuator. The substrate piece is shaped as a rigid body adjoining the transducer and as... | 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 |
| 7239487 | Micro-electro-mechanical actuator for positioning a device such as a read/write head in a disk drive A micro-electro-mechanical device formed by a body of semiconductor material having a thickness and defining a mobile part and a fixed part. The mobile part is formed by a mobile platform, supporting arms extending from the mobile platform to the fixed part, and by ... | 07/03/2007 |
| 7221542 | System and method for hard drive damage prevention by providing reinforcing material to corners of a micro-actuator to improving the shock resistance thereof A system and method are disclosed for hard drive damage prevention by improving the shock resistance of a hard disk micro-actuator. The interior angles of the micro-actuator are rounded and structurally supported by a reinforcing material. ... | 05/22/2007 |
| 7215514 | Method of operating a disk drive including rotating a perpendicular write head to reduce a difference between skew and taper angles, and a disk drive A method of operating a disk drive including providing the disk drive. The disk drive includes a disk with data tracks and an actuator with a slider including a perpendicular magnetic write head. The write head includes leading and trailing sides defining a taper an... | 05/08/2007 |
| 7161765 | Write/read head supporting mechanism, and write/read system An object of the invention is to provide a write/read head supporting mechanism for a magnetic disk system or optical disk system having a microactuator for effecting a micro-displacement of a slider, wherein any electrostatic breakdown of an electromagnetic transdu... | 01/09/2007 |
| 7119993 | Actuator assembly including a circuit assembly and a damper therefor Apparatus and method for damping operational vibration modes of an actuator assembly. The actuator assembly preferably supports a data transducing head adjacent a storage medium in a servo track writing environment. The actuator assembly further supports a circuit a... | 10/10/2006 |
| 7110224 | Disk drive having a two-stage actuator for suppressing a flying-height fluctuation There is provided a magnetic disk drive in which a flying-height fluctuation produced by the operation of a fine actuator is decreased, the reliability is high, and recording density is high. For this purpose, the magnetic disk drive is configured as described below... | 09/19/2006 |
| 7096748 | Embedded strain gauge in printed circuit boards An apparatus generally having a circuit board and a first strain gauge is disclosed. The circuit board may have a plurality of insulating layers. The first strain gauge may be disposed between two of the insulating layers. ... | 08/29/2006 |
| 7094061 | Printed circuit board with integral strain gage An integral strain measurement layer for use in an assembly printed circuit board to provide for strain measurement on the printed circuit board. The strain measurement layer includes an insulating layer having a top surface and a bottom surface, a strain sensitive ... | 08/22/2006 |
| 7095591 | Head slider having microactuator A pair of slits are defined in a slider body of a head slider so as to extend from a trailing end surface to the leading end on the slider body. A movable block is established in the slider body between the slits. The slits ensure the extent of movement for the mova... | 08/22/2006 |
| 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 |
| 7050266 | Write/read head supporting mechanism and write/read system having a flexible grounding member An object of the invention is to provide a write/read head supporting mechanism for a magnetic disk system or optical disk system having a microactuator for effecting a micro-displacement of a slider, wherein any electrostatic breakdown of an electromagnetic transdu... | 05/23/2006 |
| 7028317 | Optical disc device having an inclined guided member to control the direction of light An optical disk device performing data reproducing and/or data recording of a disk with the disk being clamped and rotated. The disk device has a simple structure in which light emitted from an optical pickup can be securely made incident on the disk at right angles... | 04/11/2006 |
| 7027248 | Magnetic disk apparatus having an adjustable mechanism to compensate write or heat element for off-tracking position with yaw angle In a thermal assisted type magnetic disk apparatus having a head holding a heat element and a write element, in which coercivity of a disk is locally reduced by temperature-increasing the disk and writing is performed by the write element, along with a seek operatio... | 04/11/2006 |
| 6996051 | Data storage module suspension system having primary and secondary flexures A micro-electro-mechanical device includes a moveable mass supported within a frame. To support the mass within the frame, a first flexure extends between the mass and the frame. An angle softening element is positioned between a first end of the first flexure and t... | 02/07/2006 |
| 6980679 | Method and system for monitoring breathing activity of a subject A method and system for monitoring breathing movement of an infant is disclosed. A method and system for detecting and predictably estimating regular cycles of breathing movements is disclosed. Another disclosed aspect of the invention is directed to detect and repo... | 12/27/2005 |
| 6977790 | Design scheme to increase the gain of strain based sensors in hard disk drive actuators An actuator arm assembly has an actuator arm and an actuator for moving the actuator arm whereby the arm assembly experiences vibrations. The actuator has a body with a recess formed therein, and a strain sensor is fitted essentially inside the recess such that the ... | 12/20/2005 |
| 6950287 | Disk drive having a two-stage actuator for suppressing a flying-height fluctuation There is provided a magnetic disk drive in which a flying-height fluctuation produced by the operation of a fine actuator is decreased, the reliability is high, and recording density is high. For this purpose, the magnetic disk drive is configured as described below... | 09/27/2005 |
| 6937441 | Disc drive suspension having features enabling relative positioning of load beam and flexure An extending portion extending from the proximal portion of the load beam of a disc drive suspension has a first hole in which a first positioning pin can be inserted and a second hole in which a second positioning pin can be inserted. The first hole has an elongate... | 08/30/2005 |
| 6924166 | Process for sealing devices incorporating microstructures A process for the fabrication of devices that integrate protected microstructures, comprising the following steps: forming, in a body of semiconductor material, at least one microstructure having at least one first portion and one second portion which are relatively... | 08/02/2005 |
| 6914751 | Disc drive suspension with positioning features enabling load beam and flexure to be positioned relative to one another An extending portion of a load beam is formed having a first hole in which a first positioning pin can be inserted and a second hole in which a second positioning pin can be inserted. The first hole has an elongated shape that allows the extending portion of the loa... | 07/05/2005 |
| 6879468 | Magnetic head actuator having an improved microactuator oscillatably supported by metallic micro-beams A magnetic head actuator for a magnetic recording disk drive, comprising a micro-actuator which is provided at a tip end portion of a load beam attached to an arm of a voice coil motor and which is for oscillating a magnetic head slider, wherein one end of the micro... | 04/12/2005 |
| 6813119 | Disc drive suspension whose extending portion and flexure can be regulated An extending portion of a hinge member is formed having a first hole in which a first positioning pin can be inserted and a second hole in which a second positioning pin can be inserted. The first hole has an elongated shape that allows the extending portion of the ... | 11/02/2004 |
| 6757124 | Actuator system for a disc drive using a piezoelectric assembly An actuator assembly of a disc drive having an actuator arm rotatably mounted adjacent a data disc. The actuator arm includes a piezoelectric assembly configured to displace a data transducer relative to the data disc. The piezoelectric assembly may include a top-le... | 06/29/2004 |
| 6738230 | Method and apparatus for positioning a magnetic head using a dual-stage actuator in an information recording and/or playback device A disk device includes a head part, an actuator part for moving the head part to an objective position, and a control part for controlling the actuator part, wherein the control part makes the actuator part shift to a reverse direction of the movement direction of t... | 05/18/2004 |
| 6639761 | Micro-actuator damping and humidity protection A micro-actuator including a skeleton having flexible beams, a rotor portion, a stator portion, and a damping material. The flexible beams connect the rotor portion to the stator portion and the damping material is applied to the skeleton. The damping mat... | 10/28/2003 |
| 6621661 | Write/read head supporting mechanism including a microactuator and a slider connected to a ground region of a suspension A write/read head supporting mechanism including a slider having an electromagnetic transducer element or an optical module, a suspension for supporting the slider and including a ground region, and a microactuator disposed between the slider and the susp... | 09/16/2003 |
| 6618220 | Head actuator and hard disc drive including the same A head actuator includes a head slider for carrying a head for recording information to or reproducing information from a recording medium; and a head supporting member for supporting the head slider. The head supporting member includes a substrate and a ... | 09/09/2003 |
| 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 fixedly provided a medium for recording data to write data ... | 01/28/2003 |
| 6501623 | Method for assembling an actuator device for a hard disk, comprising a read/write transducer, a microactuator, and a suspension, and the actuator device thus obtained A microactuator is attached to a first face of a coupling formed on a suspension, so that an R/W transducer projects from an opposite face. A hole in the coupling permits passage of an adhesive mass interposed between a rotor of the microactuator and the ... | 12/31/2002 |
| 6404599 | High-performance integrated microactuator, particularly for a hard disk read/write transducer A microactuator comprises a stator element and a rotor element which are capacitively coupled. The rotor element comprises a suspended mass and a plurality of movable drive arms extending radially from the suspended mass and biased at a reference potentia... | 06/11/2002 |
