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| Number | Title | Issue Date |
| 8014105 | Method and apparatus for modifying the air bearing force of the trailing edge of a slider to increase head to disk interface reliability for contact recording systems An apparatus and method for modifying the air bearing force of the trailing edge of a slider 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 el... | 09/06/2011 |
| 7961433 | Air-bearing design for hard disk drive (HDD) applications A slider is formed with an ABS topography that eliminates the accumulation of lubricant swept from the surface of a rotating disk in an operating HDD. The topography includes air channeling grooves in which are formed backflow blocking elements that prevent the form... | 06/14/2011 |
| 7948714 | Transducer including an element of a transducer and a sidewall in an electrically conductive magnetic layer A transducer includes a first layer that is selectively deposited in a contact region to form a core, and selectively deposited in a transducer region to form a first element of the transducer. The transducer includes an electrically conductive magnetic deposit. The... | 05/24/2011 |
| 7894162 | Method to protect the magnetic recording head from thermal asperities during disk drive operation A slider mounted read/write head is protected from thermal asperities due to head-disk interactions by a ridge formed along an interfacial plane that extends above the ABS plane of the slider. The ridge is formed as part of a lapping process that is directed from th... | 02/22/2011 |
| 7656617 | Slider and manufacturing method thereof, head gimbal assembly, disk drive with same The invention discloses a manufacturing method of slider. The slider comprises an incline portion (6) connecting a read/write portion (24) disposed with a convex configuration on an air bearing surface opposite to a recording medium, and a concave port... | 02/02/2010 |
| 7646566 | Slider deformation control by thermal-structural compensators A disk drive includes a drive circuitry, a storage disk, a suspension and a slider. The slider is supported by the suspension and receives electrical current from the drive circuitry. The slider includes a flying side that generally faces the storage disk, a read/wr... | 01/12/2010 |
| 7369348 | Method and apparatus for adaptation to humidity in a hard disk drive Hard Disk Drive (HDD) including a humidity sensor. Humidity sensor communicating with embedded circuit to provide humidity reading to alter flying height control asserted to control vertical positioning of slider above disk surface. Method operating HDD using humidi... | 05/06/2008 |
| 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 |
| 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 |
| 7339765 | Slider with air bearing surface with selected distances between recording/reproducing element and rear-rail for reducing variation in flying height There are provided a slider and a magnetic disk unit that can significantly reduce a variation in flying height caused by an air pressure change even if the size of the magnetic disk unit or the slider is small. An air bearing surface (1) which faces a disk m... | 03/04/2008 |
| 7339766 | System and method for a subambient pressure air bearing slider utilizing negative pressure grooves A system and method are disclosed for a subambient pressure air bearing slider utilizing negative pressure grooves. In one embodiment, a groove extends from a slider's leading edge, splits, and terminates in two locations at the slider's trailing edge. In one embodi... | 03/04/2008 |
| 7336443 | Slider for a data storage device with a floating transducer body and method of fabrication therefor A head for a data storage device including an independently supported transducer body floatably coupled to the slider body and including at least one transducer element. The transducer body is independently supported relative to the disc surface to provide transduce... | 02/26/2008 |
| 7330323 | Disk drive determining a head-switch preheat period used to format a disk A disk drive is disclosed comprising a disk having a plurality of tracks, wherein each track comprises a plurality of data sectors. The disk drive further comprises a plurality of heads, such as a top head and a bottom head. Control circuitry within the disk drive d... | 02/12/2008 |
| 7314404 | Burnishing head A burnishing head comprises at least two rails, each rail having an inner wall and an outer wall. The outer walls are at an angle relative to one another and relative to a central axis of the burnishing head. This angle permits the burnishing head to exhibit improve... | 01/01/2008 |
| 7290325 | Methods of manufacturing magnetic heads with reference and monitoring devices According to one aspect, an exemplary method for manufacturing a magnetic head includes forming a plurality of magnetoresistive devices, a reference device, and a monitoring device, where the reference device includes a desired stripe height less than the magnetores... | 11/06/2007 |
| 7289299 | Air bearing slider with three-projection trailing center pad A novel air bearing can be used in a magnetic hard disk drive or other information storage device. The novel air bearing includes a central cavity having a bottom surface, a leading pad adjacent to the central cavity, a trailing center pad having a top surface, and ... | 10/30/2007 |
| 7283328 | Thin-film magnetic head, head gimbal assembly with thin-film magnetic head, magnetic disk drive apparatus with head gimbal assembly, method for designing thin-film magnetic head and manufacturing method of thin-film magnetic head A thin-film magnetic head includes at least one inductive write head element and at least one read magnetic head element, capable of controlling a spacing between a magnetic recording medium and the at least one magnetic read head element by heating. A gain SG (nm/Â... | 10/16/2007 |
| 7281317 | Manufacturing method of flying magnetic head slider A manufacturing method of a flying magnetic head slider includes a step of providing a substrate with a plurality of inductive write head elements formed thereon, each head element having a pair of magnetic poles facing to each other via a magnetic gap, and with a p... | 10/16/2007 |
| 7278902 | Enabling location specific burnishing of a disk Various embodiments of the present invention pertain to enabling location specific burnishing of a disk. According to one embodiment, the smoothness of a disk is evaluated by gliding over a disk to determine if there is an asperity on the disk. If there is an asperi... | 10/09/2007 |
| 7265943 | Air bearing for a head to provide reduced cross-curve sensitivity An air bearing for a slider including cooperating raised bearing surfaces or portions along a trailing edge portion of the slider. The cooperating raised bearing surfaces or portions are formed on a stepped bearing surface which is elevated above a recessed bearing ... | 09/04/2007 |
| 7262937 | Responsive aeroelastic slider One embodiment of the present invention pertains to a slider that includes a substrate, a transducer tip disposed on the substrate, and a hydrodynamic surface including a responsive aeroelastic deposit. The substrate has a first coefficient of expansion responsive t... | 08/28/2007 |
| 7254885 | Wafer-level fabrication method for top or side slider bond pads A method is used for fabricating sliders for use in a disc drive actuation system, the sliders having bonds pads formed on either a top surface or side faces of the slider. The method comprises providing a substrate having a top surface. Trenches are formed in the s... | 08/14/2007 |
| 7256965 | Adaptable air bearing slider with trailing edge cavity An air bearing slider including a recessed cavity surface to provide an adaptable bearing surface to compensate for thermal expansion or pole tip protrusion. The recessed cavity surface forms a leading edge cavity step to a raised bearing surface proximate to a trai... | 08/14/2007 |
| 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 |
| 7251106 | Magnetic head slider having protrusion-compensated air bearing surface design A magnetic head slider including a central pad that is disposed at the trailing edge of the slider and designed to increase the flying height of the slider in response to heat induced protrusion of the head elements. The central pad of the present invention includes... | 07/31/2007 |
| 7251107 | Method and apparatus for providing an air bearing pad having improved roll angle sigma A method and apparatus for providing an air bearing pad having improved roll angle sigma is disclosed. Two Z-shaped air bearing pads are formed to provide two additional negative pockets for improving roll angle stiffness of the slider and for shrinking the air bear... | 07/31/2007 |
| 7240418 | Method of manufacturing slider of thin-film magnetic head A slider includes a slider main body and a thin-film magnetic head element. The slider main body has an air bearing surface, an air inflow end, and an air outflow end. The air bearing surface has a first part closer to the air outflow end, a second part closer to th... | 07/10/2007 |
| 7233459 | Integral wear-pad for slider-disk interference detection A slider-mounted transducer has an integral wear pad for determining interference between the transducer and a disk surface. The wear pad intensifies interference events during disk drive testing and enables the threshold for slider fly-height to be set at a lower l... | 06/19/2007 |
| 7230797 | Slider having transversely separated bearing surfaces and openings to rear bearing surfaces A disk drive for storing data includes a rotating storage disk and a slider positioned near the storage disk. The slider has a flying side and a read/write head. The flying side has (i) a leading edge, (ii) a trailing edge that is opposite the leading edge, (iii) fi... | 06/12/2007 |
| 7227723 | Reduced lubricant accumulating slider A slider having an advanced air bearing can employ control features that permit control of the flow-field streamline direction and thus enable an indirect mass transfer that flushes any accumulated lubricant out of the advanced air bearing. These control features ca... | 06/05/2007 |
| 7212380 | Magnetic write head with recessed overcoat A magnetoresistive read/write head having a first layer of alumina and a second layer of silicon dioxide overlaying a P3 layer of the head. In a preferred embodiment, the silicon dioxide layer is recessed away from an Air Bearing Surface (ABS) to reduce protrusion o... | 05/01/2007 |
| 7209323 | Slider having cavity floor with differing depths A disc head slider having a slider body that includes a bearing surface, a cavity dam and a sub-ambient pressure cavity is provided. The sub-ambient pressure cavity has a cavity floor, a plurality of sides and a depth that progressively varies between a point on one... | 04/24/2007 |
| 7200918 | Method for forming an air bearing surface on a slider Embodiments include a slider having a silicon body and at least one carbide pad structure embedded therein. At least one head structure for reading and/or writing data is located on the silicon body. The silicon body includes an air bearing surface on which the head... | 04/10/2007 |
| 7199960 | Disk drive with AC exciter for head/disk interface A disk drive includes a disk for storing information, a head with a transducer that writes data to and reads data from the disk, and an AC power source. The head is suspended adjacent to the disk and a flying height gap exists at the head/disk interface. The AC powe... | 04/03/2007 |
| 7196016 | Fabrication process for preparing recording head sliders made from silicon substrates with SiOovercoats A method for fabricating recording head sliders made from silicon substrates, is described. A Silicon wafer with a SiO2 overcoat is provided, and a layer of material which is resistant to Deep Reactive Ion Etching (DRIE) is deposited on the SiO2 | 03/27/2007 |
| 7193805 | Flying-type disk drive slider with micropad A slider (2′) with a reduced fly height is disclosed. The slider includes a small micropad (66) on the lower surface (22′) of the slider (2′). A sensor region (62) of a head (61) that is carried by the slider (2... | 03/20/2007 |
| 7187514 | Magnetic head assembly and magnetic disc device The present invention implements a magnetic disk drive usable under a wide range of temperature environment conditions, and a magnetic head assembly. The flying height of a magnetic head slider (1) can be controlled against a change of temperature so that the... | 03/06/2007 |
| 7184244 | Method for flying a disk drive slider having a high pressure micropad ABS A slider for a disk drive is disclosed. In one embodiment, the slider includes an air bearing pad that contains a read/write transducer. This particular air bearing pad is small. High pressures are exerted on this small air bearing pad while the slider is flying in ... | 02/27/2007 |
| 7180707 | Thin-film magnetic head, head gimbal assembly, and hard disk drive A thin-film magnetic head on a support includes an electromagnetic transducer for writing, a magnetoresistive device for reading, an overcoat layer and a heating element. The transducer and magnetoresistive device are disposed on the support. The overcoat layer is d... | 02/20/2007 |
