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| Number | Title | Issue Date |
| 7379257 | Magnetic disk drive A magnetic disk drive includes an actuator arm, a suspension fixed to a tip end of the actuator arm, and a head slider having at least two electromagnetic transducers mounted at a tip end of the suspension. The head slider has a first electromagnetic transducer incl... | 05/27/2008 |
| 7340823 | Methods for forming head suspension assemblies Embodiments include a method for forming a head suspension assembly. A spacer layer is formed in or on a silicon wafer. A transfer film including an opening defining the shape of a slider support membrane is provided, and the opening is filled with a resin material.... | 03/11/2008 |
| 7289304 | Current-perpendicular-to-the-plane (CPP) magnetoresistive sensor with improved antiparallel-pinned structure A current-perpendicular-to-the-plane spin-valve (CPP-SV) magnetoresistive sensor has an improved antiparallel (AP) pinned structure. The AP-pinned structure has two ferromagnetic layers separated by a nonmagnetic antiparallel coupling (APC) layer and with their magn... | 10/30/2007 |
| 7289285 | Information storage systems An information storage apparatus includes a storage media including a plurality of information tracks. Each storage medium has a head assembly having a substantially planar surface and a plurality of read/write heads positioned in registry with the information track... | 10/30/2007 |
| 7274538 | Sensor with semi-permanently deformable element for active element adjustment A sensor comprises a transducer portion including a semi-permanently deformable portion. A deformation of the semi-permanently deformable portion in response to an activation energy deforms the transducer portion. The deformation is retained after the activation ene... | 09/25/2007 |
| 7233554 | Disk drive system employing effective disk surface stabilization mechanism A stabilization part stabilizes surface vibration of a flexible optical disk along a rotation axis direction of the optical disk by means of pressure difference of air flow created according to Bernoulli's law at a portion on which information writing/reading is per... | 06/19/2007 |
| 7230796 | Features for improved slider attachment A slider for supporting at least one transducer includes a slider body having a bearing surface and an opposing mounting surface. The slider also includes at least one adhesive control feature formed on the mounting surface to increase a surface area on which an adh... | 06/12/2007 |
| 7194796 | Method for creating a magnetic head A magnetic head and method for forming the same. Leads are added to a wafer stack having a free layer, a bias layer, and a spacer layer between the free layer and bias layer. A gap is formed between the leads. A protective layer is added to the wafer stack such that... | 03/27/2007 |
| 7184245 | Head slider to be adhered to precise positioning actuator, head gimbal assembly with the head slider, method for adhering the head slider to the actuator, manufacturing method of head slider and manufacturing method of head gimbal assembly A head slider provided with at least one head element, to be fixed to an actuator for precisely positioning the at least one head element, including adhering sections to be adhered to the actuator, and recesses for receiving an adhesive. At least one of the recesses... | 02/27/2007 |
| 7170715 | Microsuspension assemblies for direct access storage devices Embodiments include a method for forming a head suspension assembly. A spacer layer is formed in or on a silicon wafer. A transfer film including an opening defining the shape of a slider support membrane is provided, and the opening is filled with a resin material.... | 01/30/2007 |
| 7136264 | Use of gold leads in lead overlaid type of GMR sensor A magnetic head including a lead overlaid read head component in which the electrical current passing through the overlaid passive regions of the sensor layers is reduced. The parts of the electrical leads that overlay the sensor layers are comprised of gold. The ex... | 11/14/2006 |
| 7133263 | Magnetoresistive sensor having a self aligned lead overlay structure and method of fabrication thereof A self aligned magnetoresistive sensor having a narrow and well defined track width and method of manufacture thereof. ... | 11/07/2006 |
| 7027255 | Devices and systems for setting thresholds for rotatable storage media In order to increase the performance and reliability of devices including rotatable storage media, individual characteristics of device elements or heads can be determined and used to set performance criteria. The off-track capability and track mis-registration of a... | 04/11/2006 |
| 7027266 | Head suspension with flexure-supported slider between first and second load bending portions The present invention provides an improved suspension and head assembly. One exemplary suspension comprises an arm configured to be held by a positioning mechanism. A first load beam is coupled to the arm. A first flexure is coupled to the first load beam. The suspe... | 04/11/2006 |
| 6965490 | Multi-channel head position controlling apparatus and method of controlling position of multi-channel head A multi-channel head position control apparatus and a method of controlling the position of the multi-channel head in which even if the width of a tape-like recording medium is changed, each of unit recording heads constituting a multi-channel head can be aligned wi... | 11/15/2005 |
| 6954339 | Suspension assembly including a shape memory flexure element to adjust flexure or preload force A suspension assembly which can be energized to provide in-situs fly height adjustment for a head of a disc drive or energizable to adjust preload force for CSS. The suspension assembly includes a shape memory flexure element having an energizable length differentia... | 10/11/2005 |
| 6920685 | Method for fabricating a thin film magnetic head A writing magnetic pole portion composed of a first magnetic film and a second magnetic film formed on the first magnetic film via a gap film is fabricated on a given wafer. Then, the writing magnetic pole portion is swung forward and backward around a rotation stan... | 07/26/2005 |
| 6373648 | Disk head assembly with multiple read and/or write transducers for improved performance A recording disk apparatus is provided. The recording disk apparatus includes a recording disk having at least one recording surface with a plurality of spaced recording tracks. The recording disk also includes a positioning arm with a head assembly. The ... | 04/16/2002 |
| 6359753 | Floating magnetic head for use with flexible disks A magnetic head including first and second magnetic head units for recording to and reproducing from a first and second flexible rotating recording medium; the second flexible rotating recording medium having a coercive force lower than a coercive force o... | 03/19/2002 |
| 6222703 | Magnetic head for reading from and writing to a rotated magnetic disc in an elevated state produced by air flow and structure for supporting same A slider of a magnetic head is provided with first and second magnetic head parts, and a central groove so that first and second air bearing surfaces separate from each other are formed. An air flow produced between the air bearing surfaces, and a magneti... | 04/24/2001 |
| 5940250 | Disk drive head having a read wide/write narrow architecture A dual element head is provided that includes a read element and a separate write element, wherein the read width of the read element is greater than the write width of the write element. The head also includes an erase notch for creating an erase strip a... | 08/17/1999 |
| 5710680 | Magnetic hard disk drive head suspension apparatus A magnetic disk storage device is provided in which two magnetic heads for reading and writing information to the adjacent surfaces of spaced disks are mounted on a single arm. The heads are longitudinally displaced along the single arm to permit decrease... | 01/20/1998 |
| 5644450 | Magnetic head assembly with thin-film magnetic head and flexible support member A thin-film magnetic head assembly having a thin-film magnetic head and an elongated flexible support member. The magnetic head includes a base portion, a core, a coil arranged helically around the core, and a pole adapted to contact a recording medium. T... | 07/01/1997 |
| 5606474 | High density disk drive with accelerated disk access A high density fixed head disk drive is shown. Small track width and small inter-track spacing is accomplished by small head-to-media distances, which are maintained by fabricating both read/write heads and demultiplexer circuitry on a single planer subst... | 02/25/1997 |
| 5528819 | Combination transducer/slider/suspension and method for making A disk drive assembly in which the suspension, slider and transducer are integrated and fabricated to produce a combination assembly. The combination transducer-slider-suspension assembly is batch produced by forming a plurality of the combination assembl... | 06/25/1996 |
| 5463513 | Magnetic head assembly for a magnetic disk drive A magnetic head assembly incorporated in a magnetic disk drive for recording and reproducing data from a magnetic recording medium. A magnetic head is mounted on the free end of a suspension arm by a gimbal spring and a flexible printed circuit. A lug or ... | 10/31/1995 |
| 5390059 | Flying head slider supporting mechanism having active air pressure control A flying head slider supporting mechanism comprises a rigid body disposed away from the surface of a magnetic recording medium by a predetermined distance, an air flow passage extending through the rigid body to the surface of the magnetic recording mediu... | 02/14/1995 |
| 5335126 | Magnetic disk device without slider and having magnetic head mounted directly on magnetic head support including integral gas pressure generating structure A magnetic disk device includes an arm disposed at a distance from a magnetic disk surface, a magnetic head support having a first end associated with the arm and having a second end extended toward the magnetic disk surface, a magnetic head provided on t... | 08/02/1994 |
| 5274507 | Parallel data encoding for moving media A parallel data encoding method in single disk drive units. The method can be applied to botb bard disc drives and floppies. None or little change is required in the Present Physical construction of disk drives. The invention permits standard error detect... | 12/28/1993 |
| 5189578 | Disk system with sub-actuators for fine head displacement A magnetic disk system utilizes both of voice coil motor and a piezoelectric element provided on a head supporting arm to precisely position a head to a predetermined position on a disk. The piezoelectric element is built in the distal end portion of the ... | 02/23/1993 |
| 5189577 | A magnetic disk apparatus and a motor securement therefor A magnetic disk apparatus has a base member and a cover mounted on the base member to form an enclosure having at least six magnetic disks rotatably supported therein. First and second transducers are included for writing information on and reading inform... | 02/23/1993 |
| 5010430 | Head slider arrangement for magnetic disk storage device A magnetic disk storage device has a magnetic disk with a storing/reproduction region formed thereon and a head slider facing the disk surface with a plurality of parallel projections to generate an air bearing. Magnetic heads each having a head gap are p... | 04/23/1991 |
| 4933793 | Magnetic disc drive A magnetic disc drive in which two magnetic heads, each of which has at least two magnetic gaps, are provided on a single carriage and radially spaced apart from each other by a first predetermined distance. A radially inner one of the two magnetic heads ... | 06/12/1990 |
| 4891723 | Multiple stage heat shielding for transducer support arm A support means is disclosed for mounting an integrated circuit chip preamplifier with respect to an aluminum transducing head support arm in a magnetic disc drive. The support means includes two heat shields, each with an aluminum foil layer facing the p... | 01/02/1990 |
| 4843503 | Head arm damping device for disc drive actuators In an information storage system having a plurality of data storage medias which may be read and/or written onto by multiple read/write heads carried by a plurality of aligned head arms, a damping device is provided for reducing vibrations within the head... | 06/27/1989 |
| 4787001 | Magnetic disc apparatus A magnetic disc apparatus including a magnetic recording disc having at least two tracks formed thereon and a magnetic head assembly comprising a rotary shaft, an actuator arm connected to said rotary shaft, suspension arms mounted on the actuator arm and... | 11/22/1988 |
| 4730227 | Disk file actuator with combined carriage rail and isolator mount for drive magnet An apparatus is disclosed for actuating the read-write heads of a disk file in which a plurality of support rails having resilient bushings at either end support on their central portions a carriage for the read-write heads and on their resilient bushings... | 03/08/1988 |
| 4703379 | Hard disk drive with erasing apparatus In a hard disk drive with a closed housing (10) enclosing a magnetic disk pack (24,26) and a carrier arrangement (32) for magnetic heads (36), permanent-magnet or electromagnetic erase heads (44,62) are arranged in this which can be operated independently... | 10/27/1987 |
| 4571649 | Disk drive carriage structure A disk memory assembly has a carriage structure which has a coil assembly secured to one end and is supported by bearings for rectilinear movement in response to the energization of a voice coil. The carriage has four fins, a tower member and a horizontal... | 02/18/1986 |
| 4506307 | Magnetic head slider and actuator assembly A magnetic head slider and actuator assembly comprises an X-shaped shuttle actuator movable within a slotted portion of a frame within which permanent magnets are positioned. The shuttle actuator supports an electrical coil for interaction with the magnet... | 03/19/1985 |
