Matches 151 - 200 out of 252 < 1 2 3 4 5 6 >
Match Document Document Title
6407891 Magnetic read/write head having electromagnetic field cancellation element  
The present invention is a read/write head for writing information to magnetic media and reading information from magnetic media. It includes a write head for writing information onto magnetic...
6400537 Thin film magnetic head  
A thin film magnetic head includes an upper shield section, a lower shield section and a magnetoresistance device section between the upper shield section and the lower shield section. The...
6396670 Reducing sensor temperature in magnetoresistive recording heads  
A method and apparatus for dissipating heat generated in a sensor element of a vertical magnetoresistive recording head or flux guide magnetoresistive recording head having a recess formed in the...
6396669 AP pinned PtMn spin valve read head biased for playback symmetry and magnetic stability  
A spin valve sensor of a read head has a platinum manganese (PtMn) pinning layer that pins a magnetic moment of an antiparallel (AP) pinned layer structure. The pinned layer structure has a first...
6387285 Method of manufacturing thin-film magnetic head  
It is an object of a method of manufacturing a thin-film magnetic head of the invention to improve the insulating property between an electrode connected to a magnetoresistive element and a shield...
6385015 Magnetoresistive effect type reproducing head and magnetic disk apparatus equipped with the reproducing head  
A magnetoresistive effect type reproducing head is formed by stacking a lower magnetic shield made of magnetic material, a lower inter-layer insulation film, a magnetoresistive effect type element...
6381107 Magneto-resistive tunnel junction head having a shield lead rear flux guide  
In the present invention, a common lead and shield layer is used so as to be electrically contacted with a tunnel multilayered film for supplying a sense current to the tunnel multilayered film....
6344952 Serpentine resistive shunt for MR heads having conductive shields  
A read element for a tape drive system is disclosed. The read element generally comprises a magneto-resistive sensor electrically coupled to first and second leads and at least one electrically...
6342993 Thin film magnetic head and method of manufacturing the same  
A concave portion corresponding to the reading track width is formed in the surface of a bottom shield layer so that a step is formed in an insulating layer (bottom shield gap film) between the...
6337784 Magnetoresistive effect type reproducing head and magnetic disk apparatus equipped with the reproducing head  
A magnetoresistive effect type reproducing head is formed by stacking a lower magnetic shield made of magnetic material, a lower inter-layer insulation film, a magnetoresistive effect type element...
6333842 Magneto-resistance effect type composite head and production method thereof  
The present invention provides a magneto-resistance effect (hereinafter, referred to as MR) type composite head. The head includes a reproduction head including an MR element arranged between a...
6330122 Magnetic tester for disk surface scan  
The hard disk testing and certifying device of the present invention includes a spin stand to rotate a disk to be tested. A single read/write head, including both a write head and a read head is...
6304397 Magnetic recording/reproducing apparatus with rotary drum with magnetoresistance head for transducing DC-free code signals  
A helical scan magnetic recording/reproducing apparatus incorporating an MR head to serve as a reproducing magnetic head is arranged to convert data which is recorded on a magnetic tape into data...
6301086 Thin-film magnetic head supporting structure and method for manufacturing the same  
A thin-film magnetic head supporting structure includes: an FeAlSi alloy film; a ceramic substrate used for structural support of the FeAlSi alloy film; and an intermediate multilayer structure...
6292334 Thin film magnetic head comprising shield layer having stabilized magnetic domain structure  
A lower shield layer is formed in a multilayered structure in which four magnetic layers are laminated with nonmagnetic intermediate layers held therebetween. The static magnetic coupling produced...
6279827 Method, apparatus and article of manufacture for dynamically positioning magnetic shielding to reduce magnetic interference at a magnetic read head  
An method and article of manufacture for reducing noise detected by a magnetic read head. In particular it relates to reducing magnetic interference at a magnetic read head by dynamically...
6275360 Read-write head  
A read-write head is capable of suppressing fluctuation on a reproduced waveform caused by repetition of a writing and reading operation, and is capable suppressing noise appearing in the...
6246553 Shielded magnetoresistive head with charge clamp  
An MR or GMR head is described which solves a head spiking problem with a charge clamp structure which provides a noninsulating electrical path from a conducting shield to an MR element lead to...
6243241 Spin valve magneto-resistance effect head and a magnetic storage apparatus using the same  
A spin valve magneto-resistance effect head includes a spin valve film, a pair of magnetic shield members, and a support member. Each of the pair of magnetic shield members is arranged opposite to...
6233127 Thin film device provided with means for electrostatic breakdown prevention  
The present invention is directed to a thin film device in which a function of electrostatic breakdown prevention can be enabled or disabled with ease and at which a member for electrostatic...
6219205 High density giant magnetoresistive transducer with recessed sensor  
A magnetic transducer employs a giant magnetoresistive sensor whose sensing surface is separated by a dielectric layer from a magnetically recorded surface carrying recorded data signals to be read...
6209193 Method of making read sensor with self-aligned low resistance leads  
A method makes a magnetic head at first, second, third, fourth and fifth regions on a substrate including forming a read sensor material layer in all regions, forming a first capping layer on the...
6198609 CPP Magnetoresistive device with reduced edge effect and method for making same  
A magnetoresistive (MR) device includes a sensor that has a first surface electrically coupled to a first lead structure, and a second surface electrically coupled to a second lead structure. The...
6195872 Method of manufacturing a thin film magnetic head  
A method of manufacturing a thin film magnetic head including a first magnetic layer, a second magnetic layer, a gap layer, and a thin film coil consisting of one or more thin film coil layers....
6177207 Combination read/write thin film magnetic head and its manufacturing method  
The bottom core layer is formed into a double-layer structure in which the first bottom core layer and the second bottom core layer containing Co as a principal component are formed of soft...
6169646 Magnetoresistive shield incorporating seedlayer for anisotropy enhancement  
A layer of iron--silicon--aluminum alloy is deposited over a seedlayer of an amorphous alloy to form a shield for a read element in a recording head. Percentage weights of iron, silicon, and...
6160688 Magneto-resistive composite head and a magnetic disk device, having grounded magnetic shielding layers  
To provide an MR composite head wherein damage of an MR element due to discharge of the static electricity is surely prevented with a simple configuration without degrading reproduction performance...
6134089 Current perpendicular to plane magnetoresistive device with low resistance lead  
The present invention provides a thin film magnetoresistive current perpendicular to the plane read head device and method of fabrication. The structure of the thin film head of the present...
6125009 Magnetoresistive effect composite head having a pole containing Co-M  
In a magnetoresistive effect composite head, magnetic shields oppose each other on a slider main body made of a ceramic material through a predetermined gap, and a magnetoresistive effect element...
6124047 Soft magnetic film and a magnetic head of an MR/inductive composite type using such a soft magnetic film  
A soft magnetic film comprises a Co--M--T--C alloy wherein a film structure is predominantly made of an amorphous phase and element M and C are chemically combined. The use of this film as a lower...
6097578 Bottom shield design for magnetic read heads  
A bottom shield for use in a magnetic read head is disclosed. The bottom shield has a ferromagnetic layer that has a length and an outer width. The ferromagnetic layer has a first edge, a second...
6084752 Thin film magnetic head  
A thin film magnetic head includes an upper shield section, a lower shield section and a magnetoresistance device section between the upper shield section and the lower shield section. The...
6081409 TiC MR-head magnetic shield dummy shield spark gap  
A magneto-resistive read head having a "parasitic shield" provides an alternative path for currents associated with sparkovers, thus preventing such currents from damaging the read head. The...
6061210 Antiparallel pinned spin valve with high magnetic stability  
A magnetic head is provided that includes a spin valve sensor, first and second leads for conducting a sense current through the spin valve sensor, first and second gap layers and first and second...
6031691 Magnetoresistance effect magnetic head and manufacturing method therefor  
A magnetoresistance effect magnetic head which is capable of shortening shield gap distance and which can be manufactured by a small number of manufacturing steps, and a manufacturing method...
6025978 Composite type thin-film magnetic head with improved recording characteristics and high resolution  
A composite type thin-film magnetic head. In one embodiment, a substrate is used as a base, and an insulating film, a lower shielding magnetic film, a magneto-resistive element, an upper shielding...
6025977 Combined magnetoresistive (MR) read and inductive write head with sunken write coil  
A combined sunken magnetoresistive (MR) read/write head is provided wherein first and second shield layers are eliminated or thinned down in an insulation stack region just behind a pole tip...
6023397 Magnetic head, and its fabrication method  
A magnetic pole or magnetic shielding film is constructed of a soft magnetic thin film that has a composition represented by formula (Fe 1 -x M x ) 1 -y N y wherein M is at least one element...
6018443 Thin film magnetic head having hard films for magnetizing a shield layer in a single domain state  
Hard films consisting of a permanent magnet material are formed on both the sides of shield layers to orient the magnetization of the shield layers in an easy axis of magnetization (X direction),...
6002555 Thin film magnetic head  
A thin film magnetic head includes an inductive head and an MR head. The resistance of one magnetic shielding layer is higher than the resistance of an opposed shielding layer, to increase the...
5973889 Single-channel magnetic head with magnetoresistive element in series with electrically conducting magnetic elements  
Single-channel magnetic head having a head face (1) which extends in a first direction (I) in which a magnetic record carrier (3) is relatively movable with respect to the magnetic head, and in a...
5969910 Magnetic head and magnetic disk apparatus provided therewith  
A magnetic head having a magnetoresistive head having a spin valve structure in which a composite magnetic layer of a rotatable magnetizing direction layer and oxide or the like is used for a lower...
5936812 Thin film magnetic head with inductive magnetic conversion element and magnetoresistive conversion element  
An upper magnetic layer and a lower magnetic layer of an inductive magnetic conversion element constitute pole tips which face opposite each other over a gap layer at their front end portions and...
5923502 Magneto-resistive head including a selectively placed low-reluctance path between shields  
A magnetic head including a shielded MR element which incorporates a low reluctance path between the shields to reduce interference picked up by inductive reading of the shields. The low reluctance...
5898548 Shielded magnetic tunnel junction magnetoresistive read head  
A magnetic tunnel junction (MTJ) magnetoresistive read head for a magnetic recording system has the MTJ device located between two spaced-apart magnetic shields. The magnetic shields, which allow...
5872691 Thin film magnetic head, magnetoresistance effect magnetic head and composite magnetic head  
A thin-film magnetic head, a magnetoresistance effect magnetic head and an MR inductive head are disclosed. The thin-film magnetic head has one of thin-film magnetic cores stacked on a substrate...
5867350 Magneto-resistance effect head with insulated bias conductor embedded in shield groove  
A magneto-resistance effect magnetic head having a uniform bias distribution and adapted for avoiding shorting between a magneto-resistance device and a bias conductor wherein a magneto-resistance...
5864450 NI45FE55 metal-in-gap thin film magnetic head  
The present invention provides a novel high magnetic moment material for the pole pieces as well as a metal-in-gap configuration for the pole tips of either an inductive magnetic head only or the...
5850325 Magnetic head having a read element upper shield film and a write element lower magnetic film separated by a non-magnetic film having a thickness such that magnetic coupling is enduced therebetween  
An MR element and an inductive element are provided. The MR element is provided with a first magnetic shield film and a second magnetic shield film on the two sides of a magnetoresistive film. A...
5838521 Magnetoresistive transducer having laminated magnetic shields  
A magnetoresistive read transducer includes a magnetoresistive layer that is sandwiched between a pair of laminated magnetic shields. Each laminated magnetic shield includes at least two layers of...
Matches 151 - 200 out of 252 < 1 2 3 4 5 6 >