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| Number | Title | Issue Date |
| 6395388 | Magnetoresistance effect element The present invention provides an exchange coupling film having a stacked-film-structure consisting of a ferromagnetic film made of at least one material of Fe, Co and Ni, and an antiferromagnetic film, wherein the exchange coupling film made of a ferroma... | 05/28/2002 |
| 6395400 | Magnetic recording medium A magnetic recording medium using a biaxially oriented aromatic polyamide film as a nonmagnetic support resulting in hardly any improper windings or edge damages. The magnetic recording medium includes a magnetic layer containing ferromagnetic powders dis... | 05/28/2002 |
| 6391423 | Magnetic recording medium A magnetic recording medium exhibiting satisfactory electromagnetic conversion characteristic and movement characteristics and incorporating a non-magnetic support member made of aromatic polyamide film. The magnetic recording medium incorporating a non-m... | 05/21/2002 |
| 6391450 | Spindle-shaped goethite particles, spindle-shaped hematite particles, spindle-shaped magnetic iron-based alloy particles, and process for producing the same Spindle-shaped goethite particles are disclosed, which contain not less than 0.5 and less than 8 atom % of Co based on the total Fe and 5 to 10 atom % of Al based on the total Fe, and have an average major axis diameter of 0.18 to 0.30 μm, a size distrib... | 05/21/2002 |
| 6391483 | Magnetic device and method of forming same A device including a magnetic material having a magnetization configuration that is circular in a plane, and a word line for producing a magnetic field in the plane, the magnetic field being radial with respect to a point in the plane and within the circu... | 05/21/2002 |
| 6391419 | Magnetic recording medium A magnetic recording medium, comprising a magnetic layer containing a ferromagnetic metal thin film having micro-size projections on surface thereof and formed by vacuum film forming method and provided at least on one side of a nonmagnetic substrate, a c... | 05/21/2002 |
| 6387522 | Grain-oriented electrical steel sheet for low-noise transformer The present invention provides a grain-oriented electrical steel sheet, for a low noise transformer, capable of reducing higher harmonics which are highly audible and lowering noise effectively, and relates to a grain-oriented electrical steel sheet for a... | 05/14/2002 |
| 6387483 | Perpendicular magnetic recording medium and manufacturing process therefor It is intended to reduce the media noise, and to improve the recording density dependence of read output voltage. The present invention provides a perpendicular magnetic recording media and its manufacturing process, wherein a perpendicular magnetic recor... | 05/14/2002 |
| 6387549 | Magnetic sensor A high-sensitivity magnetic sensor capable of detecting a nonequilibrium spin, uses an almost-spin-polarized ferromagnetic oxide in a high-quality trilayer arrangement including an intermediate layer made of a conductive nonmagnetic oxide not reacting wit... | 05/14/2002 |
| 6387550 | Giant magnetoresistive material film, method of producing the same and magnetic head using the same A giant magnetoresistive material film includes at least two ferromagnetic layers of a NiFe alloy or NiFeCo alloy, which are formed on a substrate through a nonmagnetic layer of Au, Ag, Cu or Cr, wherein magnetization of at lest one of the ferromagnetic l... | 05/14/2002 |
| 6387485 | Composite substrate with adhesive and ferromagnetic properties A flexible composite substrate is disclosed and includes a flexible carrier, a first adhesive and a second adhesive. The first adhesive is adhered to the flexible carrier and includes ferromagnetic material. The second adhesive is adhered to the first adh... | 05/14/2002 |
| 6387548 | Exchange coupling film and magnetoresistance effect type element using this exchange coupling film, and thin film magnetic head using the magnetoresistance effect type element The antiferromagnetic layer 4 is formed of the X--Mn alloy (X is an platinum group element) and the interface structure of with the pinned magnetic layer 3 is made to be non-coherent by properly adjusting the composition ratio of X. Consequently, the crys... | 05/14/2002 |
| 6387476 | Magnetic functional element and magnetic recording medium A magnetic functional element can operate stably and reliably with a satisfactorily low rate of power consumption if used to realize an enhanced degree of integration. The magnetic fuctional element comprises strain-sensitive magnetic layer 2 having a mag... | 05/14/2002 |
| 6383645 | Glass-ceramic substrate for an information storage medium There is provided a glass-ceramic substrate for an information storage medium usable in an information storage device of the ramp loading system. The glass ceramic substrate has a Young's modulus (GPa)/specific gravity of 37 or over and includes 5.3 to 8 ... | 05/07/2002 |
| 6383605 | Magnetic recording medium Disclosed is a magnetic recording medium comprising a flexible nonmagnetic support, a nonmagnetic layer containing nonmagnetic powder and a binder on the support, and a magnetic layer containing ferromagnetic powder and a binder on the nonmagnetic layer. ... | 05/07/2002 |
| 6383626 | Magnetic ferrite film for magnetic devices A magnetic ferrite paste is applied onto an Si substrate, and then sintered to form thereon a magnetic ferrite film having a mean composition that comprises from 40 to 50 mol % of Fe2 O3, from 15 to 35 mol % of ZnO, from 0 to 20 mol ... | 05/07/2002 |
| 6383637 | Black magnetic iron oxide particles for magnetic toner and process for producing the same Black magnetic iron oxide particles of the present invention having an average particle diameter of 0.1 to 0.3 μm, comprise: black spinel iron oxide particles as core particles; and a surface coat formed on the surface of each core particle, comprising fine s... | 05/07/2002 |
| 6383668 | Magnetic recording media with antiferromagnetically coupled host layer for the magnetic recording layer A magnetic recording disk has a magnetic recording layer formed on a special multilayered "host" layer. The host layer is a "synthetic antiferromagnetically", i.e., at least two ferromagnetic films that are exchange-coupled antiferromagnetically (AF) to o... | 05/07/2002 |
| 6379774 | Composite polyester film and magnetic recording medium A composite polyester film comprising (1) a base film C of an aromatic polyester which does not contain or contains inert particles having an average particle diameter of 5 to 2,000 nm in an amount of 0.001 to 5.0 wt % based on the aromatic polyester; (2)... | 04/30/2002 |
| 6379775 | Magnetic recording medium and method of manufacturing the same A magnetic recording medium comprises a nonmagnetic substrate (1) of a crystallizable material and a lamina including at least a magnetic layer (3) formed thereon. The nonmagnetic substrate has a surface specified by a predetermined crystal grain size whi... | 04/30/2002 |
| 6379810 | High resistance magnetic film The present invention provides a magnetic film expressed by a composition formula Ta Mb Xc Nd Oe (T is a magnetic metal such as Fe, M is an alkaline earth metal such as Be, Mg, and Ca, and X is at lea... | 04/30/2002 |
| 6379801 | Silane derivatized lubricants for magnetic recording media A fluoropolyether having a nonfunctional silane end group is applied to a magnetic recording medium to form a lubricant topcoat thereon. In an embodiment of the present invention, no less than about 70% of the lubricant applied to the magnetic recording m... | 04/30/2002 |
| 6376089 | Process for producing rare earth metal-based permanent magnet having corrosion-resistant film The present invention provides a process for producing a rare earth metal-based permanent magnet having, on its surface, a corrosion-resistant film containing inorganic fine particles having a specific average particle size and dispersed in a film phase f... | 04/23/2002 |
| 6376083 | Magnetic recording medium The present invention provides a magnetic recording medium having high dispersion property, good running durability and good preservation property, and it comprises at least one magnetic layer having ferromagnetic powder dispersed by a binder placed on a ... | 04/23/2002 |
| 6376108 | Magnetic material and magnetic head using the same and magnetic storage device having thereof This invention is to provide a magnetic head consisting of NiFeMo alloy which assures excellent high frequency characteristic and makes easy formation of magnetic domain structure without any heat treatment and thereby contributes to improvement of magnet... | 04/23/2002 |
| 6376043 | Aromatic polyamide film laminate, production process thereof and magnetic recording medium therefrom An aromatic polyamide film laminate comprising at least two biaxially oriented films formed of an aromatic polyamide, wherein (1) a film layer A, which is the outermost layer of the laminate, contains inorganic particles produced from hydroxides or carbon... | 04/23/2002 |
| 6372325 | Magnetic recording medium Disclosed is a magnetic recording medium having a flexible nonmagnetic support, a nonmagnetic layer containing a nonmagnetic powder and a binder on the support, and a magnetic layer containing a ferromagnetic powder and a binder. The magnetic layer has an... | 04/16/2002 |
| 6372338 | Spherical magnetic particles for magnetic recording media A particulate magnetic recording media wherein the magnetic particles are substantially spherical. The spherical particle shape makes possible a media which is magnetically isotropic, well dispersed and low in noise, and free of magnetically inferior brok... | 04/16/2002 |
| 6368722 | Laminated film and process A laminated film containing a heat resisting resin layer which is soluble in a dipolar aprotic solvent, is laminated on a biaxially oriented thermoplastic film, wherein the biaxially oriented thermoplastic film and the heat resisting resin layer are direc... | 04/09/2002 |
| 6368706 | Magnetoresistance effect element The present invention provides an exchange coupling film having a stacked-film-structure consisting of a ferromagnetic film made of at least one material of Fe, Co and Ni, and an antiferromagnetic film, wherein the exchange coupling film made of a ferroma... | 04/09/2002 |
| 6365286 | Magnetic element, magnetic memory device, magnetoresistance effect head, and magnetic storage system A magnetic element which has a laminate film composed of ferromagnetic-dielectric mixed layer and dielectric layer laminated alternately, said ferromagnetic-dielectric mixed layer being a mixture of a ferromagnetic material having coercive force and a die... | 04/02/2002 |
| 6361863 | Device having magnetoresistive material A device comprising a magnetoresistive material including a mixture of powdered CrO2 having granules at least partially coated with Cr2 O3, and powdered Ni, the mixture being compressed to form a compacted material which e... | 03/26/2002 |
| 6361859 | Magnetic recording media having CrMo underlayers A magnetic recording media having a CrMo underlayer provides improved performance characteristics. In one embodiment, the recording media comprises a rigid substrate and an underlayer disposed over the substrate, in which the underlayer comprises CrMo. Pr... | 03/26/2002 |
| 6358636 | Thin overlayer for magnetic recording disk Protective overlayers for magnetic recording media are described. The overlayers, composed of a transition metal-silicon or transition metal-germanium interlayer and a carbon overcoat, provide good wear resistance and corrosion resistance at thicknesses o... | 03/19/2002 |
| 6358635 | Magnetic recording sensor with stabilizing shield A magnetic shielding element for a magnetic recording and sensing device which prevents the problem of pop-corn noise or covariance of amplitude noise in the magnetic sensing device. The shielding element has a layer of antiferromagnetic exchange material... | 03/19/2002 |
| 6358432 | Composite magnetic material and inductor element A composite magnetic material comprises a ferrite powder and a resin, in which the ferrite powder comprises a cobalt substituted Y type hexagonal ferrite (2BaO.2CoO.6Fe2 O3) or cobalt substituted Z type hexagonal ferrite (3BaO.2CoO.1... | 03/19/2002 |
| 6358619 | Aromatic polyamide film and magnetic recording medium using it The present invention is an aromatic polyamide film, which is a laminated film consisting of at least two layers, comprising an aromatic polyamide and 0.1 wt % to 10 wt % of at least one or more different polymers, being contained at least in the outermos... | 03/19/2002 |
| 6355342 | Flash layer overcoat for high density multilayer magneto-optical media High density, multi-layer, magneto-optical (HDMMO) information storage and retrieval media having improved tribological properties when used in high-density storage devices employing very small head flying heights are formed by providing an ultra-thin, pr... | 03/12/2002 |
| 6352765 | Magneto-optical recording medium and reproducing device A magneto-optical recording medium includes at least a first magnetic layer, a second magnetic layer and a third magnetic layer which are layered in this order, the first magnetic layer being formed of a perpendicularly magnetized film having a relatively... | 03/05/2002 |
| 6352776 | Magnetic recording medium, non-magnetic acicular black iron-based composite particles and process for producing the particles A magnetic recording medium of the present invention comprises: a non-magnetic base film; a non-magnetic undercoat layer formed on the non-magnetic base film, comprising a binder resin and non-magnetic acicular black iron-based composite particles; and a magne... | 03/05/2002 |
