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7355825 |
Current-perpendicular-to-the-plane structure magnetoresistive element and head slider
A magnetoresistive film is interposed between domain controlling films in a current-perpendicular-to-the-plane (CPP) structure magnetoresistive element. The domain controlling films are designed to...
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7333307 |
Double layer longitudinal bias structure
It is necessary to stabilize the free layer of GMR or TMR devices by providing a longitudinal bias field. As read tracks become very narrow, this field can drastically reduce the strength of the...
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7123456 |
Method of making magnetoresistive head element
A combined stripe of a magnetoresistive (MR) film and domain control stripe layers can be formed below a photoresist film on the surface of a substratum. An insulating base layer is then formed to...
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7112375 |
Seed layer structure for improved crystallographic orientation of a hard magnetic material
A seed layer structure for improved crystallographic orientation of grains in a hard magnetic material is disclosed. The seed layer structure is comprised of alternating layers of a metal and a...
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7075761 |
Lead-defined and shaped magnetic sensor
A magnetic recording transducer, useful in a magnetic data storage device, having a read element with improved magnetic stability and a narrow track width is described. An MR stripe according to...
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7072156 |
Method for biasing magnetoresistive sensor with decoupled hard bias multilayers
A magnetic sensor is provided, having two bias layers separated by a decoupling layer to eliminate exchange coupling between the bias layers. The two bias layers may have differing coercivities,...
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6961225 |
Magnetoresistance sensor having an antiferromagnetic pinning layer with both surfaces pinning ferromagnetic bias layers
A magnetoresistance sensor structure includes a magnetoresistance sensor having a sensor surface plane and having a free layer. An upper antiferromagnetic layer overlies at least a portion of the...
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6947316 |
Magnetoresistive sensor including magnetic domain control layers having high electric resistivity, magnetic head and magnetic disk apparatus
There are provided a magnetoresistive sensor of the type of flowing a signal sensing current perpendicular to the plane to improve resolution at reproducing a signal, a magnetic head using the...
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6870718 |
Magnetoresistive sensor including magnetic domain control layers having high electric resistivity
A magnetoresistive sensor of the type of flowing a signal sensing current perpendicular to the plane to improve resolution at reproducing a signal, a magnetic head using the magnetoresistive...
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6754048 |
Multiple magnetoresistive (MR) layer sensor element having longitudinal bias layers with non-parallel magnetizations
Within a method for forming a magnetoresistive (MR) sensor element there is first provided a substrate. There is then formed over the substrate a first magnetoresistive (MR) layer having formed...
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6747854 |
Multi-channel magnetic head with magnetoresistive elements
Multi-channel magnetic head having a high channel density, provided with a head face ( 1 ) which extends in a first direction (I) in which a record carrier is relatively movable with respect to...
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6661627 |
Magnetic recording device, method of adjusting magnetic head, and magnetic recording medium
A fixed magnetic recording device which can suppress dispersions appearing, upon manufacturing, on an effective track width and a longitudinal bias magnetic field of a magnetic head using a hard...
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6462919 |
Spin valve sensor with exchange tabs
A spin valve sensor is disclosed that comprises a first layer of ferromagnetic material and a second layer of ferromagnetic material. A first layer of non-ferromagnetic material is positioned...
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6353316 |
Magneto-resistive element and thin film magnetic head comprising the same
A magnetoresistive film through which a sense current for detecting a resistance change due to a magnetic field to be detected flows in a longitudinal direction, and a lateral bias film which is...
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6266218 |
Magnetic sensors having antiferromagnetically exchange-coupled layers for longitudinal biasing
A longitudinal bias structure to be placed adjacent a ferromagnetic free layer or a sense layer which is responsive to an external magnetic field and belongs to a magnetic sensor, for example a...
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6188550 |
Self-longitudinally biased magnetoresistive read transducer
A magnetic structure, such as a magnetoresistive sensor, having a continuous multi-region magnetic layer in which the magnetic and electrical characteristics of each region is locally defined. In...
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6185081 |
Bias layers which are formed on underlayers promoting in-plane alignment of the c-axis of cobalt used in magnetoresistive transducers
Bias layers for a magnetoresistive (MR) sensor have an in-plane easy axis of magnetization for providing a longitudinal bias to MR layers. The bias layers include cobalt (Co), and are formed on...
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6181532 |
Stabilized MR sensor and flux/heat guide joined by contiguous junction
The back end of an MR sensor and a flux guide are joined by a contiguous self-aligned junction so that a predictable overlap of the flux guide on the back end of the MR sensor can be achieved for...
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6172859 |
Magnetoresistive head and magnetic disk apparatus
A magnetoresistive head in which Barkhausen noise is substantially suppressed and a variation in reproduction is minimized, and a magnetic disk apparatus using the same magnetic head have been...
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5946168 |
Magneto-resistance effect device and magnetic head
A magneto-resistance effect device (MR device) in which stable magneto-resistance characteristics may be achieved even if a layer of a soft magnetic material is reduced in width. The MR device...
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5844756 |
Magnetoresistive head having manganese diffusion layer
An MR head includes a soft magnetic (SAL) layer, a non-magnetic (SHUNT) layer, and a magnetoresistive (MR) layer, which are stacked on top of each other, with an antiferromagnetic layer being...
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5828527 |
Thin-film magnetic head having magnetic resistance effect stabilizing layer
A thin-film magnetic head improves magnetic stability of a magnetoresistance effect film 13 for further stabilizing the playback output. The thin-film magnetic head has a magnetoresistance effect...
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5701221 |
Magnetoresistive thin-film magnetic head and method of fabrication thereof
A magnetic domain controlling film for controlling the magnetic domain of a magnetoresistive film is formed by a patterning technique on a lower insulating film formed on a lower shield film. The...
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5654854 |
Longitudinally biased magnetoresistive sensor having a concave shaped active region to reduce Barkhausen noise by achieving a substantially single magnetic domain state
A magnetoresistive ("MR") sensor constructed with a concave shaped edge in order to provide an effective longitudinal bias field in the center of the active MR element sufficient to obviate...
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5592082 |
Magnetic sensor with permanent magnet bias layers
A magnetic sensor includes a magnetoresistive effect layer (MR layer), on which permanent magnet layers are superimposed, the permanent magnet layers having slanted edges forming an angle φ with...
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5398146 |
Reset cassette with electromagnetic means for restoring the desired magnetization direction in a magnetoresistive head of a system for recording and/or reproducing signals
A system for recording and/or reproducing signals on a magnetic medium. The system comprises a tape cassette provided with a magnetic tape and an apparatus for cooperation with the tape cassette....
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5307226 |
Improved magnetoresistive transducer with substantially perpendicular easy axis
A magnetoresistive transducer includes at least one magnetoresistive element having a transverse easy axis. The use of a transverse easy axis prevents magnetic domains from forming in the...
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5155644 |
Yoke thin film magnetic head constructed to avoid Barkhausen noises
The yoke thin film magnetic head according to the present invention includes yokes for leading the magnetic flux of signals generated from the magnetic recording medium up to the magnetic...
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4907114 |
Mangeto-resistive type read head
A magneto-resistive type read head has a substrate, a magnetic film exhibiting a magneto-resistive effect arranged in the widthwise direction of the track of a magnetic writing disk, and lead...
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4896235 |
Magnetic transducer head utilizing magnetoresistance effect
A MR magnetic head with a sensing element which comprises a plurality of superposed magnetic layers which have a magnetoresistance effect in at least one and a nonmagnetic intermediate layer...
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4394699 |
Thin-film magnetic head
A thin-film magnetic head employing a magneto-resistive element (MR element), which comprises a substrate, a layer of MR element deposited on said substrate and a conductor layer for supplying said...
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