Did You Know...
...In 1790, the cost to obtain a patent was between $4 and $5.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8178158 | Method for making a current-perpendicular-to-the-plane giant magnetoresistance (CPP-GMR) sensor with a confined-current-path (CCP) A method of making a current-perpendicular-to-the-plane giant magnetoresistive (CPP-GMR) sensor with a confined-current-path (CCP) layer uses an array of self-assembled ferritin protein molecules with inorganic cores to make the CCP layer in the sensor stack. In one... | 05/15/2012 |
| 8114470 | Reduced spacing recording apparatus Aspects include recording media with enhanced areal density through reduction of head media spacing, head keeper spacing, or head to soft underlayer spacing. Such aspects comprise replacing currently non-magnetic components of devices, such as interlayers and overco... | 02/14/2012 |
| 7951415 | Method of manufacturing magnetic head for perpendicular magnetic recording A pole layer has an end located in a medium facing surface, the end having: a first side close to a substrate; a second side located opposite to the first side; a third side connecting an end of the first side to an end of the second side; and a fourth side connecti... | 05/31/2011 |
| 7897201 | Method for manufacturing magnetoresistance effect element A method is for manufacturing a magnetoresistance effect element having a magnetization fixed layer, a non-magnetic intermediate layer, and a magnetization free layer being sequentially stacked. The method includes: forming at least a part of a magnetic layer that i... | 03/01/2011 |
| 7740903 | Method for manufacturing magnetic recording medium A method for manufacturing magnetic recording media is provided, by which a magnetic recording medium that has a recording layer formed in a concavo-convex pattern, a sufficiently flat surface, and good recording/reproducing properties can be manufactured. The metho... | 06/22/2010 |
| 7691434 | Method for fabricating magnetoresistive read head having a bias structure with at least one dusting layer A method of fabricating a bias structure of a magnetoresistive read head for a magnetoresistive sensor stack formed on a substrate includes forming an underlayer and forming a bias layer over the underlayer. The method further includes forming a dusting layer direct... | 04/06/2010 |
| 7666467 | Magnetic tunnel junctions using amorphous materials as reference and free layers Magnetic tunnel junctions are constructed from a MgO or Mg—ZnO tunnel barrier and amorphous magnetic layers in proximity with, and on respective sides of, the tunnel barrier. The amorphous magnetic layer preferably includes Co and at least one additional element s... | 02/23/2010 |
| 7648731 | Fabricating perpendicular write elements in perpendicular magnetic recording heads Methods of fabricating perpendicular write elements for perpendicular magnetic recording heads are discussed. In write element fabrication, write poles are fabricated according to one of many desired methods. The write poles during fabrication are typically covered ... | 01/19/2010 |
| 7585542 | Glassy metal disk A method of making a hard disk drive platter comprises providing a substrate having first and second surfaces; arranging a strengthening layer including glassy metal on at least one of the first and second surfaces; and arranging at least one magnetic layer on at le... | 09/08/2009 |
| 7476414 | Magnetoresistance effect element There are provided a magnetoresistance effect element, a magnetic head, a magnetic head assembly and a magnetic recording system, which have high sensitivity and high reliability. The magnetoresistance effect element has two ferromagnetic layers, a non-magnetic laye... | 01/13/2009 |
| 7438946 | Ferrite thin film, method of manufacturing the same and electromagnetic noise suppressor using the same A ferrite film is formed by regularly arranging constituents such as magnetized grains or one analogous to that. In the ferrite film, the constituents have at least one of the uniaxial anisotropy and the multiaxial anisotropy. The ferrite film has the magnetic aniso... | 10/21/2008 |
| 7431961 | Composite free layer for CIP GMR device In this invention, we replace low resistivity NiFe with high-resistivity FeNi for the FL2 portion of a composite free layer in a CIP GMR sensor in order to minimize current shunting effects while still retaining both magnetic softness and low magnetostriction... | 10/07/2008 |
| 7422912 | Magnetic memory device and methods for making same In one embodiment, a memory device includes a plurality of magnetic data cells and a magnetic reference cell extending uninterrupted along more than one of the plurality of data cells. ... | 09/09/2008 |
| 7393601 | Weak antiferromagnetically coupled media with a five element magnetic alloy and a low moment stabilizing layer A magnetic recording medium having a substrate, underlayer, a low moment stabilizing layer, an antiferromagnetic coupling layer, a low magnetic layer having a magnetic saturation of equal to or less than 250 emu/cm2, and a high moment magnetic layer havin... | 07/01/2008 |
| 7390530 | Structure and process for composite free layer in CPP GMR device The conventional free layer in a CPP GMR read head has been replaced by a tri-layer laminate comprising Co rich CoFe, moderately Fe rich NiFe, and heavily Fe rich NiFe. The result is an improved device that has a higher MR ratio than prior art devices, while still m... | 06/24/2008 |
| 7367110 | Method of fabricating a read head having shaped read sensor-biasing layer junctions using partial milling A method for fabricating a read head for a magnetic disk drive having a read head sensor and a hard bias layer, where the read head has a shaped junction between the read head sensor and the hard bias layer. The method includes providing a layered wafer stack to be ... | 05/06/2008 |
| 7369427 | Magnetic elements with spin engineered insertion layers and MRAM devices using the magnetic elements A method and system include providing a pinned layer, a free layer, and a spacer layer between the pinned and free layers. The spacer layer is nonmagnetic. The magnetic element is configured to allow the free layer to be switched due to spin transfer when a write cu... | 05/06/2008 |
| 7361380 | Process for improving corrosion resistance of thin-film recording media & media obtained thereby A method for increasing the corrosion resistance of a data/information storage and retrieval medium comprises sequential steps of: (a) providing a thin film data/information storage retrieval medium comprising, in overlying sequenc... | 04/22/2008 |
| 7357998 | Disk substrate for a perpendicular magnetic recording medium, perpendicular magnetic recording disk and manufacturing methods thereof A disk substrate for a perpendicular magnetic recording medium comprises a disk base member, a soft magnetic layer formed on the disk base member, and a protection layer formed on the soft magnetic layer. The soft magnetic layer and the protection layer are deposite... | 04/15/2008 |
| 7358159 | Method for manufacturing ZnTe compound semiconductor single crystal ZnTe compound semiconductor single crystal, and semiconductor device The present invention relates to a method for producing an n-type ZnTe system compound semiconductor single crystal having high carrier concentration and low resistivity, the ZnTe system compound semiconductor single crystal, and a semiconductor device produced by u... | 04/15/2008 |
| 7354618 | Oxygen plasma post-deposition treatment of magnetic recording media A method of manufacturing magnetic recording media, comprising sequential steps of: (a) providing an apparatus for manufacturing the media; (b) supplying the apparatus with at least one substrate for the media; | 04/08/2008 |
| 7354629 | Method of forming a protective film and a magnetic recording medium having a protective film formed by the method A method of forming a protective film that restrains gas adsorption while preserving durability and corrosion resistance of a plasma CVD carbon film is disclosed. A protective film of a slide-resistant member is deposited by means of a plasma CVD method using a raw ... | 04/08/2008 |
| 7351445 | Magnetic recording media and method of forming them The present invention is directed to carrying out a high density magnetic recording to a material having a large coercive force by perpendicular magnetic recording head. By giving a patterning onto a soft magnetic under layer of a perpendicular two-layer reco... | 04/01/2008 |
| 7349180 | Magnetic head assembly that has an air bearing surface First, second and third pole tip components of a write head are formed with the second pole tip located between the first and third components and a write gap layer located between the first and second pole tip components. The second pole tip is formed with a width ... | 03/25/2008 |
| 7331100 | Process of manufacturing a seed/AFM combination for a CPP GMR device An improved seed/AFM structure is formed by first depositing a layer of tantalum on the lower shield. A NiCr layer is then deposited on the Ta followed by a layer of IrMn. The latter functions effectively as an AFM for thicknesses in the 40-80 Angstrom range, enabli... | 02/19/2008 |
| 7332099 | Ion bombardment of electrical lapping guides to decrease noise during lapping process A method for reducing noise in a lapping guide. Selected portions of a magnetoresistive device wafer are bombarded with ions such that a magnetoresistive effect of lapping guides is reduced. The device is lapped, using the lapping guides to measure an extent of the ... | 02/19/2008 |
| 7332194 | Perpendicular magnetic recording medium and method of manufacturing thereof A perpendicular magnetic recording medium is disclosed that is characterized by a lowered noise component and improved thermal stability. The method for making the recording medium includes the serial steps of forming a soft magnetic back-lining layer on a non-magne... | 02/19/2008 |
| 7333302 | GMR sensor having an under-layer treated with nitrogen for increased magnetoresistance A magnetoresistive sensor having a substrate that has been treated with nitrogen (nitrogenated). The nitrogenated substrate includes an alumina base layer and a thin top layer of crystalline alumina that has had a very small amount of nitrogen deposited on top. The ... | 02/19/2008 |
| 7326436 | Magnetic recording medium and method of fabricating the same The present invention is to provide a method of fabricating a magnetic recording medium capable of forming a protective layer with a stable performance even in a case where a thickness thereof is as thin as 100 nm or less, and a magnetic recording medium fabricated ... | 02/05/2008 |
| 7323258 | Magnetic recording medium and method for manufacturing the same A magnetic recording medium which allows high density recording and has excellent durability can be obtained. A magnetic recording medium includes: a plurality of ferromagnetic material dots arranged on a soft magnetic layer formed on a non-magnetic substrate so as ... | 01/29/2008 |
| 7324312 | Sensor with in-stack bias structure providing exchange stabilization A magnetic head having an in-stack bias structure and a free layer structure. The in-stack bias structure includes an antiferromagnetic layer; a first bias layer positioned towards the antiferromagnetic layer, a magnetic moment of the first bias layer being pinned b... | 01/29/2008 |
| 7323215 | Free layer design for CPP GMR enhancement By using a composite free layer of Fe25% Co/NiFe, an improved CPP GMR device has been created. The resulting structure yields a higher CPP GMR ratio than prior art devices, while maintaining free layer softness and acceptable magnetostriction. A process for manufact... | 01/29/2008 |
| 7323214 | Composite magnetic material electromagnetic wave absorbing sheet method for manufacturing sheet-like product and method for manufacturing electromagnetic wave absorbing sheet The object of the present invention is to provide an electromagnetic wave absorbing sheet excellent in permeability in high frequencies and to provide a method for manufacturing the same. The electromagnetic wave absorbing sheet of the present invention compr... | 01/29/2008 |
| 7318947 | Method and apparatus for controlling magnetostriction in a spin valve sensor A method and system for providing a magnetic element are described. The method and system include providing a pinned layer, fabricating a metallic spacer layer and oxidizing a portion of the spacer layer in an environment including at least oxygen and a gas inert wi... | 01/15/2008 |
| 7313856 | Method of manufacturing a magnetoresistive sensor with a thin antiferromagnetic layer for pinning antiparallel coupled tabs A manufacturing method for a spin valve sensor with a thin antiferromagnetic (AFM) layer exchange coupled to a self-pinned antiparallel coupled bias layer in the lead overlap regions is provided. The spin valve sensor comprises forming a ferromagnetic bias layer ant... | 01/01/2008 |
| 7313858 | Method for manufacturing a magnetic head coil structure and/or pole tip structure A Damascene process is provided for manufacturing a coil structure for a magnetic head. During the manufacturing process, an insulating layer is initially deposited after which a photoresist layer is deposited. A silicon dielectric layer is then deposited on the pho... | 01/01/2008 |
| 7312958 | Method for manufacturing magnetic disk apparatus A method for manufacturing a magnetic disk apparatus having a highly sensitive reproducing head. A spin-valve-type multilayer film composed of an antiferromagnetic layer, a ferromagnetic layer, a nonmagnetic layer and a free magnetic layer is used as a magnetoresist... | 12/25/2007 |
| 7300713 | Magnetic thin film media with an underlayer of CrMoZr, CrMoNb or CrMoMn A thin film disk for use in magnetic recording with an underlayer structure that includes a layer of CrMoZr, CrMoNb or CrMoMn is described. The preferred embodiment includes a circumferentially textured glass substrate, a pre-seed layer, a B2 seed layer, an underlay... | 11/27/2007 |
| 7300711 | Magnetic tunnel junctions with high tunneling magnetoresistance using non-bcc magnetic materials Magnetic material, which is not normally bcc-structured under ambient conditions, is induced into becoming bcc as a result of its proximity to a suitable templating material, such as a bcc-structured underlayer that is in contact with the magnetic material. The magn... | 11/27/2007 |
| 7295409 | CPP giant magnetoresistive element with particular bulk scattering coefficient A CPP giant magnetoresistive element includes a multilayer film including a lower pinned magnetic layer having a laminated ferrimagnetic structure including a lower first pinned magnetic sublayer, a lower nonmagnetic intermediate sublayer, and a lower second pinned ... | 11/13/2007 |
