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| Number | Title | Issue Date |
| 7392580 | Method for manufacturing a slider using electromagnetic wave A method for manufacturing sliders from a bar has: a radiating step which includes radiating an electromagnetic wave on at least a part of each space on a second surface of said bar, wherein said second surface is a back surface of a first surface of said bar, said ... | 07/01/2008 |
| 7352530 | Method and apparatus for reducing a suspension gram load to increase head to disk interface reliability for contact recording systems An apparatus and method for reducing a suspension gram load to increase head to disk interface reliability for contact recording systems. The method provides a suspension for reaching over a disk. A slider having a read/write head element on a trailing edge (TE) por... | 04/01/2008 |
| 7345850 | Method and apparatus for utilizing an off-center gimbal to increase head to disk interface reliability for contact recording systems An apparatus and method for utilizing an off-center gimbal to increase head to disk interface reliability for contact recording systems. The method provides a suspension for reaching over a disk. A slider having a read/write head element on a trailing edge (TE) port... | 03/18/2008 |
| 7333294 | Perpendicular writer with reduced side track writing A disc drive head that includes a shared pole having high magnetic anisotropy layer which locally decreases the amplitude of dynamic field excitation of the shared pole at the write operation frequency to reduce side-writing of a disc media during a write operation.... | 02/19/2008 |
| 7292407 | Disk drive with support structure for disk-vibration capacitive sensors A data recording disk drive has one or more capacitive sensors for sensing out-of-plane vibration of the disk or disks. The sensors are attached to a support structure that is attached to the disk drive housing. Each sensor is associated with a disk and faces a surf... | 11/06/2007 |
| 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 |
| 7239121 | Quantative extraction of micro particles from metallic disk spacer rings Embodiments of the present invention include a method for quantitatively detecting embedded particles of a disk spacer ring comprising. The method includes dissolving a layer of a disk spacer ring into a liquid solution, the disk spacer ring layer comprising embedde... | 07/03/2007 |
| 7236328 | Method for producing a transducer slider with tapered edges The present invention relates to a method for producing a transducer slider. The method involves first coating a substrate with a radiation-sensitive layer and exposing the radiation-sensitive layer to radiation according to an intensity pattern. Preferably, the int... | 06/26/2007 |
| 7230781 | Information storage system, and a method of operating it An information storage system has structure with a head that can effect information transfers with respect to a storage medium. According to one feature, a control portion monitors a characteristic of information read from the storage medium, and can take action to ... | 06/12/2007 |
| 7221541 | Magnetic head supporting mechanism A magnetic head supporting mechanism includes a head positioning actuator having an arm, and a load beam connected to the arm. The load beam has a gimbal. The gimbal includes a magnetic head slider fixing portion on which a magnetic head slider having a magnetic hea... | 05/22/2007 |
| 7113370 | Slanted mounting for preload flat suspension An actuator arm of a magnetic disc drive having a mounting surface includes a mounting block having a sloped mounting surface. A base plate of a head gimble assembly is attached to the sloped mounting surface. The head gimbal assembly is unbent in its free state and... | 09/26/2006 |
| 7095578 | Detection of fly height change in a disk drive using head drag A method for detecting a change in fly-height comprises measuring motor currents at various radii at a regular interval to determine the head drag. If any of the head drags at the various radii are greater than a threshold value, it is determined that a decrease in ... | 08/22/2006 |
| 7061717 | Yoke structure with constricted width In current high density magnetic memory systems a large write current is used, giving its waveform a large overshoot. This often brings about severe excess saturation of the media so the recorded transition quality degrades. This problem has been overcome by constri... | 06/13/2006 |
| 7031122 | Magnetic shields for reduced variations of head-media spacing The invention offers a magnetic recording head that includes a substrate, a read sensor, and at least one shield positioned adjacent to the read sensor, wherein the shield contributes to thermal pole-tip recession in an amount less than about 0.5 Å/° C. The inven... | 04/18/2006 |
| 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 |
| 7023663 | Method and apparatus for improved attachment of a micro-actuator to a slider device A system and method for improving the process of attaching a hard disk micro-actuator to a slider device with a bonding agent such as epoxy, the slider having design characteristics to avoid various problems associated with bonding the components with a bonding agen... | 04/04/2006 |
| 7002779 | Thermal pole-tip recession/slide shape variation reduction A bond pad is elevated from a slider body by a conductive post. The bond pad is disposed atop the post, which typically possesses a cross-sectional area smaller than the surface are of the bond pad. Thus, rather than having the entire surface of the bond pad in cont... | 02/21/2006 |
| 7002768 | Disk drive having reduced variation of disk surface lubricant layer thickness A disk drive having a layer of lubricant on a disk surface, where an undesirable lubricant layer thickness modulation is reduced by varying ω/f during operation of the disk drive. Here ω is the angular velocity of the disk and f is a resonant frequency of a head a... | 02/21/2006 |
| 6965500 | Suspension design for attenuation of disk flutter induced track mis-registration of a hard disk drive by manipulation of load beam pitch angle A disk drive includes a head gimbal assembly that includes structure that decreases the pitch angle of the load beam, which decreases disk flutter induced track mis-registration. According to one embodiment, the disk drive includes a body portion including a bore de... | 11/15/2005 |
| 6947255 | Magnetic head having a notched pole piece structure and method of making the same A magnetic head having an improved fringing field and overwrite capability, and a method of making the same, are described. The method includes the acts of frame plating a pedestal over a first pole piece; depositing an insulator over the first pole piece and plated... | 09/20/2005 |
| 6947257 | SYSTEM AND METHOD OF INTRODUCING A PREFERENTIAL CURVATURE TO A FLEXIBLE MEDIUM FOR REDUCED MEDIUM VIBRATION AND SENSOR TO MEDIUM SPACING WITH A DISK DRIVE HEAD STACK ASSEMBLY HAVING A NON-ZERO STATIC ROLL ATTITUDE A head stack assembly is provided for interfacing with a flexible medium of a disk. The head stack assembly includes a first head and a second head located substantially adjacent to the first head wherein the flexible medium may be disposed between the first head an... | 09/20/2005 |
| 6922313 | Magnetic head slider with resistance to debris accumulation A magnetic recording head for reading and writing information with respect to a rotating disk medium includes a pad having a working surface which contacts the recording medium. The pad has a leading edge and a trailing edge with the leading edge facing in the gener... | 07/26/2005 |
| 6920019 | Device and method for improved stiction reliability in disk drives employing padded sliders A disk drive (10) including one or more storage disks (12) and a head stack assembly (14) is provided herein. The head stack assembly (14) includes an actuator assembly (16) and a plurality of transducer assemblies (18). The... | 07/19/2005 |
| 6914752 | Magnetic recording disk drive with continuous contact air-bearing slider A magnetic recording disk drive achieves continuous contact recording with a head-suspension assembly that compensates for the moment generated from an adhesive force between the head carrier or slider and the disk. The slider pivot point, which is the point where t... | 07/05/2005 |
| 6865059 | Slider of thin-film magnetic head A slider comprises a slider section and an element section. The slider section has a first medium facing surface and an air inflow end. The element section has a second medium facing surface, an air outflow end, and a thin-film magnetic head element. The slider sect... | 03/08/2005 |
| 6741526 | Magnetic head device and recording/reproducing apparatus using the magnetic head device A magnetic head device comprising a head section 55 for applying a magnetic field to a disk. The head section 55 includes a magnetic field generating section 61 and a slider 62. The slider 62 supports the magnetic field generating ... | 05/25/2004 |
| 6690545 | Air bearing slider including a depressed region extending from a main support structure between a pressurized pad support base and a contact pad support base An air bearing slider for use in a disk drive that includes a rotatable magnetic disk. The slider includes a leading side and a trailing side. The slider further includes a pressurized pad including a pressurized pad air bearing surface. The pressurized p... | 02/10/2004 |
| 6496332 | Head slider for flexible magnetic disk A head slider for a flexible magnetic disk has a magnetic pole pad including a magnetic head buried in the pad and being disposed on a surface of the head slider opposed to the flexible magnetic disk, and the magnetic head performs the recording of a sign... | 12/17/2002 |
| 6493191 | Planar magnetic ring head for contact recording with a rigid disk A transducer for a hard disk drive system has a planar magnetic core and a pair of poletips that project transversely from the core for sliding contact with the disk during reading and writing. The transducer is formed entirely of thin films in the shape ... | 12/10/2002 |
| 6411470 | Durable, low-vibration, dynamic-contact hard disk drive system A disk drive system for contact recording has a flexure beam holding a transducer at one end, the flexure beam being oriented substantially along the direction that the transducer slides on a rigid magnetic disk. The transducer has a protrusion which cont... | 06/25/2002 |
| 6229673 | Magnetic head assembly with contact-type head chip mounting and electrically connecting arrangements A magnetic disk drive has a magnetic disk and a magnetic head assembly mounted on an arm. The assembly is utilized in the recording and reproducing of data on and from a recording/reproducing surface of a magnetic disk. The magnetic head assembly includes... | 05/08/2001 |
| 6198607 | Contact planar magnetoresistive head A hard disk drive head operates in close proximity and dynamic contact with a rapidly spinning rigid disk surface, the head including a transducer with a magnetically permeable path between a poletip disposed adjacent to the disk surface and a magnetoresi... | 03/06/2001 |
| 6160685 | Hard disk drive with lightly contacting head An electromagnetic disk drive system including a rigid disk and electromagnetic read/write head structure and elongate flexure structure which cooperatively offer unique features and performance in the head/disk interface region. The head structure and fl... | 12/12/2000 |
| 6118635 | Magnetic storage apparatus having a head with sliding pads Three pads are disposed on the surface of a magnetic head facing to a storage medium and are brought into contact with the surface of the storage medium through a lubricant layer. The total of areas of the three pads is equal to or larger than 0.0001 mm | 09/12/2000 |
| 6097576 | Magnetic head A miniaturized magnetic head which can reduce running torque of a disk driving motor while head-touch and penetration margin of the magnetic head remain effective. The magnetic head comprises a slider which slides on a flexible magnetic disk, a head core,... | 08/01/2000 |
| 6016240 | Disk head positioning system including lift wing extensions on the actuator and a pivoting latch A mechanical linkage within a computer disk drive is used to ensure that the disk drive heads are parked prior to diskette ejection. An eject frame moves with respect to the chassis and drives a latch in an arcuate path. The latch engages an actuator and ... | 01/18/2000 |
| 6016239 | Transducer apparatus including transducer with recording medium contact line perpendicular to transducer pivot axis A transducer supporting apparatus (K1-K7) comprises: a transducer (11, 12) which confronts a recording medium (1) and is moved relative to the recording medium (1) in a direction (R) so as to record and reproduce information on the recording medium (1); a... | 01/18/2000 |
| 5991120 | Contact type magnetic disk apparatus A contact type magnetic disk apparatus includes a magnetic disk, a magnetic head slider, a plurality of contact pads, and a bounce prevention structure. The magnetic disk medium has a liquid lubricant applied to a predetermined film thickness on its surfa... | 11/23/1999 |
| 5936799 | Magnetic head with core portions connected by shock-absorbing portion A magnetic head for use in a magnetic disk drive and for recording and reproducing data to and from adjacent magnetic disks, the magnetic head being in contact with the magnetic disks while the adjacent magnetic disks spin, a magnetic head core included i... | 08/10/1999 |
| 5907457 | Magnetic head having a spacer for adjusting a slider height In a magnetic head for writing/reading a magnetic disk comprising sliders (15, 16) having sliding surfaces which are brought into contact with a surface of the magnetic disk so as to slide relatively to the magnetic disk and a spacer (20) for adjusting he... | 05/25/1999 |
