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| Number | Title | Issue Date |
| 8185968 | Magnetic head inspection method and magnetic head manufacturing method A magnetic head inspection method is provided with the step that an area smaller than a half of a scanning and measurement area of a magnetic probe in a cantilever unit of the MFM is set as a scanning and measurement area on a surface of a recording portion of the m... | 05/22/2012 |
| 8105703 | Process for composite free layer in CPP GMR or TMR device The conventional free layer in a CPP GMR or TMR read head has been replaced by a tri-layer laminate comprising Co rich CoFe, moderately Fe rich NiFe, and heavily Fe rich NiFe.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 ... | 01/31/2012 |
| 7407902 | Bismuth glass composition, and magnetic head and plasma display panel including the same as sealing member A Bismuth glass composition including 0.5 to 14 wt % of SiO2, 3 to 15 wt % of B2O3, 4 to 22 wt % of ZnO, 55 to 90 wt % of Bi2O3 and 4 wt % or less of Al2O3, and further including 5 wt % or ... | 08/05/2008 |
| 7327540 | Hard biased materials for recording head applications A hard bias layer that forms an abutting junction with a free layer in a GMR element and is comprised of FePtCu or FePtCuX where X is B, C, O, Si, or N is disclosed. The FePtCu layer has a composition of about 45 atomic % Fe, 45 atomic % Pt, and 10 atomic % Cu and d... | 02/05/2008 |
| 7277317 | MRAM architecture for low power consumption and high selectivity The present invention provides a magnetoresistive memory cell (30), comprising a magnetoresistive memory element (31), a first current line (32) and a second current line (33), the first and the second current line (32, 33) crossin... | 10/02/2007 |
| 7218487 | Exchange coupling film and magnetoresistive element using the same An exchange coupling film including an antiferromagnetic layer and a ferromagnetic layer in contact with the antiferromagnetic layer so as to generate an exchange coupling magnetic field is provided. A PtMn alloy is used as the material of the antiferromagnetic laye... | 05/15/2007 |
| 7209327 | Magnetoresistive head having magnetic domain control film in contact with underlayer and with ends of free layer A magnetic domain control underlayer is formed below a magnetoresistive multi-layered film thereby bringing the magnetic domain control film into contact with both lateral end faces of a free layer and appropriate magnetic domain control can be attained in a state o... | 04/24/2007 |
| 7150907 | Modified copolyesters and improved multilayer reflective films A multilayered polymer film includes a first set of optical layers and a second set of optical layers. The first set of optical layers is made from a polyester which is often birefringent. The polyesters of the first set of optical layers typically have a compositio... | 12/19/2006 |
| 7113367 | FeNiRe soft magnetic film and thin film magnetic head using the same for simultaneous adjustment of resistivity and saturated magnetic flux density A soft magnetic film composed of an alloy represented by the formula FeNiRe is used for forming a lower core layer and/or an upper core layer. Since having a high saturated magnetic flux density, a high resistivity, superior corrosion resistance, and a small loss in... | 09/26/2006 |
| 7106559 | Exchange coupling film and magnetoresistive element using the same An exchange coupling film including an antiferromagnetic layer and a ferromagnetic layer in contact with the antiferromagnetic layer so as to generate an exchange coupling magnetic field is provided. A PtMn alloy is used as the material of the antiferromagnetic laye... | 09/12/2006 |
| 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 |
| 7088548 | Perpendicular magnetic recording system To make a soft magnetic underlayer of a double layered perpendicular magnetic recording medium thinner than heretofore while avoiding saturation. Assuming that Tb1 is the thickness of the soft magnetic underlayer of the double layered perpendicular magnet... | 08/08/2006 |
| 7044837 | Magnetic head cleaning method A method for cleaning a magnetic head using a cleaning tape comprising a substrate and a cleaning layer, wherein the cleaning tape has a stiffness of 2 or less in a width direction, and the magnetic head has trenches substantially parallel to a sliding direction of ... | 05/16/2006 |
| 7046547 | Magnetic non-volatile memory coil layout architecture and process integration scheme The invention relates to methods and apparatus that allow data to be stored in a magnetic memory cell, such as a giant magneto-resistance (GMR) cell, of a magnetoresistive random access memory (MRAM). Embodiments of the invention advantageously wind a word line arou... | 05/16/2006 |
| 7002839 | Magnetic ring unit and magnetic memory device The present invention relates to a magnetic ring unit and a magnetic memory device; an object of the invention is to control the direction of rotation of the magnetic flux freely and with high reproducibility in a simple structure without using a thermal process suc... | 02/21/2006 |
| 6939123 | Electroformed adhesive laminated tooling surface with precision structured interfaces An insert for a mold, particularly a thermoplastic injection mold, including a stamper having an impression surface and a backing surface. The insert also has a support block having a facing surface having a plurality of projections thereon, with the plurality of pr... | 09/06/2005 |
| 6663939 | Magnetic recording medium A magnetic recording medium for use in reproduction with an MR head, which comprises: a non-magnetic substrate; a non-magnetic layer including a binder resin having dispersed therein a non-magnetic powder on the non-magnetic substrate; and a magnetic laye... | 12/16/2003 |
| 6656604 | Magnetoresistive thin-film magnetic element and method for making the same A magnetoresistive thin-film magnetic element including a composite comprising an antiferromagnetic layer, a pinned magnetic layer, a nonmagnetic conductive layer, a free magnetic layer; hard bias layers for orienting the magnetic vectors of the free magn... | 12/02/2003 |
| 6620530 | Synthetic anti-parallel spin valve, having improved robustness, and process to manufacture it A spin valve structure and a method for manufacturing it are described. The spin valve uses a modified pinned layer that consists of two cobalt iron layers separated by a layer of either ruthenium, iridium, or rhodium. A key feature of the invention is th... | 09/16/2003 |
| 5091253 | Magnetic cores utilizing metallic glass ribbons and mica paper interlaminar insulation A magnetic core is fabricated from ferromagnetic metallic glass ribbon and mica paper insulation. The ribbon and insulation are co-wound, so that layers comprise alternate concentric rings. The wound core is then annealed in a vacuum or an inert atmospher... | 02/25/1992 |
| 4277809 | Apparatus for recording magnetic impulses perpendicular to the surface of a recording medium Apparatus is disclosed for recording magnetic impulses on a selectively magnetizable medium with such impulses being recorded with their axes of magnetization substantially perpendicular to the surface of the medium utilizing a recording medium having a h... | 07/07/1981 |
