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| Number | Title | Issue Date |
| 7897274 | Magnetoresistive device, magnetoresistive head and magnetic recording-reproducing apparatus A magnetoresistive device includes a magnetization pinned layer, a magnetization free layer, a nonmagnetic intermediate layer formed between the magnetization pinned layer and the magnetization free layer, and electrodes allowing a sense current to flow in a directi... | 03/01/2011 |
| 7390584 | Spin dependent tunneling devices having reduced topological coupling A ferromagnetic thin-film based magnetic device with internal film coupling compensation including a nonmagnetic material intermediate layer with an initial thin-film of an anisotropic ferromagnetic material on one side. A compensation thin-film of an anisotropic fe... | 06/24/2008 |
| 7371587 | Method for reducing diffusion through ferromagnetic materials A method and apparatus are disclosed for inhibiting diffusion of mobile atoms from an antiferromagnetic layer toward a tunnel oxide layer and through a ferromagnetic layer which is pinned by the antiferromagnetic layer. Diffusion of the mobile atoms is inhibited by ... | 05/13/2008 |
| 7348647 | Digital memory cell device A digital magnetic memory cell device for read and/or write operations, having a soft-magnetic read and/or write layer system and at least one hard-magnetic reference layer system, which is designed as an AAF system and includes at least one reference layer, wherein... | 03/25/2008 |
| 7323259 | Multilayer perpendicular media with high-boron or high-carbon additives to CoCr films Carbon or boron is added into the CoCr layers of a multiplayer perpendicular magnetic media structure to reduce media noise. The perpendicular magnetic media structure has sharp interfaces between Co-alloy layers and Pd or Pt layers and significantly reduced exchang... | 01/29/2008 |
| 7312959 | Magnetic sensor having antiferromagnetic layers and free magnetic layer and method for manufacturing magnetic sensor At two sides of a multilayer film including a free magnetic layer, a first non-magnetic material layer, and a fixed magnetic layer, extension portions extending from the fixed magnetic layer are formed. At lower sides of the extension portions, a pair of first antif... | 12/25/2007 |
| 7301733 | Magnetoresistance effect element, magnetic head, magnetic reproducing apparatus, and magnetic memory A magnetoresistance effect element comprises a magnetoresistance effect film and a pair of electrode. The magnetoresistance effect film having a first magnetic layer whose direction of magnetization is substantially pinned in one direction; a second magnetic layer w... | 11/27/2007 |
| 7294418 | Magnetic film for magnetic head The magnetic film includes an FeCo layer, restrains erasing data by a magnetic field leaked from a magnetic pole, has high saturation magnetic flux density and soft magnetism and writes data with high recording density. The magnetic film for a magnetic head of the p... | 11/13/2007 |
| 7277262 | CPP magnetoresistive head including a pair of shields and a sense current preamplifier A magnetic recording/reproducing apparatus has a magnetoresistive head having a magnetoresistive film through which a current is flowed in a direction substantially perpendicular to a film plane and a pair of magnetic shields disposed to sandwich the magnetoresistiv... | 10/02/2007 |
| 7248445 | CPP magnetic sensing element and method for making the same A magnetic sensing element includes a composite film, a lower shield layer, and a lower electrode layer and an upper electrode layer for supplying a current perpendicular to the composite film. The composite film has an antiferromagnetic layer, a pinned magnetic lay... | 07/24/2007 |
| 7236335 | Magnetoresistive head A magnetoresistive head including a magnetoresistive element, and two shield layers sandwiching the magnetoresistive element. The magnetoresistive element includes an antiferromagnetic layer a pinned layer in exchange coupling with the antiferromagnetic layer, a fre... | 06/26/2007 |
| 7227728 | Method and apparatus for a current-perpendicular-to-plane Giant Magneto-Resistance sensor with embedded composite film A Current-Perpendicular-to-Plane (CPP) Giant Magneto-Resistance (GMR) sensor (700/800) has either a composite film (708) embedded into a ferromagnetic reference layer (710) or a composite film (806) embedded into a ferromagnetic keeper la... | 06/05/2007 |
| 7163755 | Magneto-resistive element The present invention provides a vertical current-type magneto-resistive element. The element includes an intermediate layer and a pair of magnetic layers sandwiching the intermediate layer, and at least one of a free magnetic layer and a pinned magnetic layer is a ... | 01/16/2007 |
| 7116531 | Lead overlay bottom spin valve with improved side reading In bottom spin valves of the lead overlay type the longitudinal bias field that stabilizes the device tends to fall off well before the gap is reached. This problem has been overcome by inserting an additional antiferromagnetic layer between the hard bias plugs and ... | 10/03/2006 |
| 7092222 | Exchange coupled film having improved current-carrying reliability and improved rate of change in resistance and magnetic sensing element using same A seed layer having a chromium content in the range of 35 to 60 atomic percent and a thickness of 10 to 200 Å is deposited to have a single phase of the face-centered cubic structure by optimizing the sputtering conditions, etc. The surface of the seed layer maint... | 08/15/2006 |
| 7064939 | Hard bias layer for read heads A magnetoresistive (MR) read head is disclosed including an MR sensor having a free layer and a pinned layer. A multi-layer hard bias layer stabilizes the free layer of the MR sensor. A product of the moment (Ms) and the thickness (t) of a lower layer of the hard bi... | 06/20/2006 |
| 7050276 | GMR magnetic sensing element having an antiferromagnetic layer extending beyond the track width and method for making the same A magnetic sensing element with improved magnetic detection output and a method for making the same are provided. In the magnetic sensing element, the length of an upper pinned magnetic layer an upper antiferromagnetic layer in a track width direction is larger than... | 05/23/2006 |
| 7046476 | Method apparatus and system for accessing discontinuous media tracks An apparatus, system, and method are disclosed for accessing discontinuous media tracks. The apparatus, in one embodiment, accesses discontinuous media tracks of a storage medium having one or more independently formed storage regions thereon. Each storage region ma... | 05/16/2006 |
| 7027322 | EPIR device and semiconductor devices utilizing the same There is provided an EPIR device which is excellent in mass productivity and high in practical utility. The EPIR device includes a lower electrode layer, a CMR thin film layer and an upper electrode layer which are laminated in this order on any of various su... | 04/11/2006 |
| 7005201 | Magnetic detecting element In a magnetic detecting element, second ferromagnetic layers are deposited on respective second antiferromagnetic layers. The magnetization direction of the second ferromagnetic layers is antiparallel to that of first ferromagnetic layers. A static magnetic field ge... | 02/28/2006 |
| 7002781 | Current-perpendicular-to-the-plane structure magnetoresistive element having the free and/or pinned layers being made of a granular film which includes an electrically conductive magnetic material and a dielectric material A current-perpendicular-to-the-plane (CPP) structure magnetoresistive (MR) element includes a pinned magnetic layer made of a granular film. The granular film contains electrically-conductive magnetic crystal grains and an dielectric material. The dielectric materia... | 02/21/2006 |
| 6692847 | Magneto resistive sensor A magneto resistive sensor having a GMR magnetic laminated film is disclosed. The GMR magnetic laminated film comprises a plurality of magnetic thin layers having a NiCoFeB composition alternately laminated with a nonmagnetic thin layer, such as copper la... | 02/17/2004 |
| 6649254 | Compensated crystalline superlattice ferrimagnets The present invention relates to compensated crystalline superlattice ferrimagnets. The ferrimagnets include multiple ferromagnetic layers having different magnetic disordering temperatures in combination with antiferromagnetically coupled layers. The cry... | 11/18/2003 |
| 6642714 | Thin-film magnetic field sensor A thin-film magnetic field sensor is provided which includes two arms of a bridge circuit formed of a first element having a giant-magneto-resistant thin-film, and soft magnetic thin-films disposed one on either side thereof, with electrical terminals, an... | 11/04/2003 |
| 5534355 | Artificial multilayer and method of manufacturing the same Disclosed is an artificial multilayer in which ferromagnetic layers and nonmagnetic layers are alternatively laminated, wherein a uniaxial magnetic anisotropy is introduced into the ferromagnetic layers in a predetermined direction, thereby controlling th... | 07/09/1996 |
| 5514469 | Magnetoresistance effect element A magnetoresistance effect element having a substrate, a buffer layer of a metal selected from the group consisting of chromium, tungsten, titanium, vanadium, manganese and their alloys which is formed on the substrate, and at least two magnetic thin laye... | 05/07/1996 |
| 5264981 | Multilayered ferromagnetic film and magnetic head employing the same A soft magnetic film includes a laminated structure having an alternating plurality of first magnetic and second magnetic film. The first magnetic films is of a predetermined thickness range and is made of a magnetic alloy of nickel, iron and nitrogen wit... | 11/23/1993 |
| 4640871 | Magnetic material having high permeability in the high frequency range A magnetic structure having improved permeability characteristics at very high frequencies and comprising a plurality of magnetic metal layers, together with electrically insulating layers which are interposed between successive magnetic metal layers to f... | 02/03/1987 |
| 4610935 | Magnetic film structure A magnetic film structure comprises at least one magnetic film unit wherein a plurality of main magnetic films of 0.05 to 0.5 μm thickness made of a magnetic alloy containing iron or cobalt as principal constituent and having a high saturation magnetic i... | 09/09/1986 |
| 4608297 | Multilayer composite soft magnetic material comprising amorphous and insulating layers and a method for manufacturing the core of a magnetic head and a reactor The present invention relates to an amorphous alloy to a soft magnetic material comprising an amorphous alloy layer, which material has such an excellent magnetic-stability that it does not undergo a secular change and which has a high magnetization and a... | 08/26/1986 |
| 4025379 | Method of making laminated magnetic material An extrusion billet is fabricated from layers of soft magnetic material separated by one or more metal layers. The billet is coreduced and heat treated to impart the desired magnetic properties to the soft magnetic material and also to form intermetallic ... | 05/24/1977 |
