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| Number | Title | Issue Date |
| 7751153 | Suspension assembly having recessed actuator with simplified lead connection A head suspension assembly couples a baseplate to a rotatable load through a planar triangular piezo microactuator for effecting hingeless rotation of the load. The microactuator expands, responsive to an excitation voltage, with greater magnitude in one direction t... | 07/06/2010 |
| 7595965 | Single PZT actuator for effecting rotation of head suspension loads A head suspension assembly couples a baseplate to a rotatable load through a planar triangular piezo microactuator for effecting hingeless rotation of the load. The microactuator expands, responsive to an excitation voltage, with greater magnitude in one direction t... | 09/29/2009 |
| 7408745 | Sway-type micro-actuator with slider holding arms for a disk drive head gimbal assembly A micro-actuator of the invention includes a support frame having a base, a moving plate, a leading beam to connect the base with the moving plate; and two slider holding arms extending from both sides of the moving plate; at least one piezoelectric element bonding ... | 08/05/2008 |
| 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 |
| 7359158 | Suspension of disc drive A suspension for disc drive has a base portion including a base plate, a load beam, a pair of hinge members, a wired flexure, etc. The wired flexure has a metal base and a wiring portion on the metal base. The hinge members are fixed overlapping the rear end portion... | 04/15/2008 |
| 7333298 | Magnetic head actuator and magnetic disk drive using the same In conjunction with a magnetic disk drive unit comprising a voice coil motor (14), an arm (12) extending from the motor, a magnetic head actuator (2) mounted at a distal end of the arm, a suspension (16) coupled to the actuator, and a mag... | 02/19/2008 |
| 7313855 | Method of forming a head suspension with an integral boss tower A method of making a multi-piece head suspension for a rigid disk drive. The method includes providing a first layer including a mounting region with an integral boss tower attached to a stiffener by one or more positioning tabs; attaching a second layer including a... | 01/01/2008 |
| 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 |
| 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 |
| 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 |
| 7218481 | Apparatus for insulating and electrically connecting piezoelectric motor in dual stage actuator suspension Apparatus and method for selectively applying a voltage to one major surface of a pair of piezoelectric motors (PZTs) on a disk drive head suspension with a primary plane of a load beam of the head suspension parallel to the major surfaces of the PZT elements electr... | 05/15/2007 |
| 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 |
| 7199978 | 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... | 04/03/2007 |
| 7199981 | High reliability-parallel data transfer hard disk drive A dual actuator arm assembly system that uses two pairs of actuator-carriage arms that linearly move over a stationary micro-rail independently. The geometric shape of the two pairs of actuator carriage arms conform to the arcs of the data tracks at an acute angle. ... | 04/03/2007 |
| 7193807 | Method and apparatus for reducing effective track width through highly skewed head angles A disk drive provides increased read and write element widths and tolerances, and also provides reduced track widths. The head with the read and write elements has a large skew angle relative to the tracks on the disk. The skew angle reduces the effective width of t... | 03/20/2007 |
| 7177119 | Microactuated head suspension with ring springs A microactuated head suspension including a mounting region for attachment of the head suspension to a source of primary actuation, a pair of generally arcuate ring springs and a connecting member. The ring springs at spaced locations extending from the mounting reg... | 02/13/2007 |
| 7167344 | Magnetic head actuator having finely movable tracking device A magnetic head actuator provided with a finely movable tracking device having a piezoelectric element is provided for easy wiring to the piezoelectric element and reducing problems such as wire breakage and continuity defects. In the magnetic head actuator, a porti... | 01/23/2007 |
| 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 |
| 7152303 | Method of localized thermal processing of integrated lead suspensions for controlling the pitch static attitude of sliders A method is provided for controlling the pitch static attitude of a slider in an integrated lead suspension head gimbal assembly. The integrated lead suspension includes a load beam, a mount plate, a hinge and a flexure made out of a multi-layer material. Localized ... | 12/26/2006 |
| 7151650 | Head assembly including a variable device for adjusting an inclination of a slider A head assembly includes a suspension coupled to an end portion of an actuator arm located on a base to rotate around a pivot shaft, a head slider installed at the suspension and having a head to record and/or read information on and/or from a recording medium, and ... | 12/19/2006 |
| 7130159 | Magnetic disk apparatus A head support mechanism includes a head to write/read information, and a head support member to support the head. The head support member has parts delimiting an opening at a portion thereof in which opposing parts which delimit the opening in a width direction of ... | 10/31/2006 |
| 7116523 | Interconnect module for use in a suspension assembly A lead routing module for interconnecting two devices in a suspension assembly. The suspension assembly including at least a suspension, a slider/head assembly, and a lead routing module. The suspension assembly may also include a microactuator. The lead routing mod... | 10/03/2006 |
| 7099118 | One-piece suspension assembly including interconnect An integrated suspension assembly including interconnect is used to provide an electrical and mechanical connection between an actuation system and a slider. The suspension assembly includes a multi-layer laminate substrate having a base layer, an insulator layer an... | 08/29/2006 |
| 7099115 | Head gimbal assembly with precise positioning actuator for head element, disk drive apparatus with the head gimbal assembly, and manufacturing method of the head gimbal assembly An HGA includes a head slider with at least one head element, a precise positioning actuator fixed to the head slider for precisely positioning the at least one head element, and a support for supporting the actuator. The actuator has a pair of movable arms capable ... | 08/29/2006 |
| 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 |
| 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 changed by changing the applied voltage to one or more multi-layer p... | 08/01/2006 |
| 7061724 | Disc drive magnetic head fine positioning mechanism including a base connecting a suspension to an arm, and having a piezoelectric drive element adjacent thereto A fine positioning mechanism is provided in a disc drive for driving a head that records data onto and reproduces data from a disc. The mechanism includes a base fixed to an arm and a suspension, the base connecting the suspension to the arm, the arm swinging around... | 06/13/2006 |
| 7050271 | Actuator having doped silicon arms and method of making the same An actuator to which leads are easily attachable, and a method of making the same are provided. In the actuator in accordance with the present invention, a pair of silicon arms have their resistances lowered by being doped with impurities and are connected to each o... | 05/23/2006 |
| 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 |
| 7038888 | Piezo-electric microactuator for dual stage actuator A head flexure assembly having a flexure with a built in microactuator is disclosed. The flexure is divided into four portions: a base plate portion for attaching the flexure to an actuator arm; a load beam portion for suspending a transducing head; a parallelogram ... | 05/02/2006 |
| 7035055 | Magnetic disk apparatus and head-supporting mechanism for the same A magnetic disk apparatus includes a magnetic disk on which information is stored, a magnetic head which performs writing-in and reading-out of information, a suspension which supports the magnetic head, and a suspension supporting member having a φ-shaped hinge. T... | 04/25/2006 |
| 7023667 | Dual stage suspension with PZT actuators arranged to improve actuation in suspensions of short length A suspension for a disk drive includes a mount plate adapted to mount to a primary actuator, a functional end portion adapted to carry a slider, and a hinge disposed between the mount plate and the functional end portion. A mounting configuration is provided on the ... | 04/04/2006 |
| 7016159 | Disk drive head suspension with spring rails for base plate microactuation A base plate for a head suspension assembly having a pair of side rails including spring portions. The base plate including first and second portions connected by the pair of side rails and separated by an opening, with the spring portions positioned adjacent to the... | 03/21/2006 |
| 6972924 | Disk drive attenuating excitation of arm vibration mode by simultaneously driving secondary actuator for non-active head A disk drive is disclosed employing a primary actuator for rotating an actuator arm about a pivot in coarse movements, and first and second secondary actuators coupled to the actuator arm for actuating first and second heads in fine movements. A servo control system... | 12/06/2005 |
| 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 frequency response greatly improves the performance and accuracy of ... | 09/27/2005 |
| 6943990 | Head support mechanism, information recording/reproducing apparatus, and method of manufacturing head support mechanism A head support mechanism includes a head and a slider for carrying the head, the head being caused to track by main driver, wherein the head support mechanism further includes sub-driving device including a thin film and causing the head to have a micro-movement; an... | 09/13/2005 |
| 6930861 | Encapsulant for microactuator suspension A microactuator used 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 disc having a plurality of concentric tracks. The microactuator is of the type comprising a piezoelectric... | 08/16/2005 |
| 6927946 | Micro-actuator integrated lead suspension head terminations A technique for electrically interconnecting a disk drive suspension assembly and a micro-actuator mounting a transducer-carrying slider. A first set of termination pads is provided on a generally planar surface of the micro-actuator, adjacent a front edge portion o... | 08/09/2005 |
| 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 |
