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8182705 |
Method for producing thin film magnetic head having magnetoresistive effect element
A method for producing a thin film magnetic head including a magnetoresistive effect element (MR element) that has a magnetic sensor multi-layered film with a polygonal shape such that a vertex...
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7007374 |
Method of making a magnetic head
A narrow track width read sensor having a high magnetoresistive sensitivity is made using a self-aligned process which requires the use of only a single resist mask. A plurality of sensor layers is...
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6741433 |
Magneto-resistive head and magnetic tunnel junction magneto-resistive head having plural ferromagnetic layers and an anitferromagnetically coupling layer
As to a magnetic tunnel junction magneto-resistive head, which comprises an antiferromagnetically coupling layer, a pinned ferromagnetic layer adjacent to said antiferromagnctically coupling layer...
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6574080 |
Thin film head with transverse biasing layers
A magnetoresistive thin film head comprises a magnetoresistive element including an antiferromagnetic layer, a pinning layer, a nonmagnetic conductive layer and a free magnetic layer, and a pair of...
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RE37992 |
Magnetoresistive head using exchange anisotropic magnetic field with an antiferromagnetic layer
A magnetoresistive head including a magnetoresistive film formed in a read-track region, and antiferromagnetic and ferromagnetic films are formed on each end of the magnetoresistive film outside of...
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6449131 |
Canted longitudinal patterned exchange biased dual-stripe magnetoresistive (DSMR) sensor element and method for fabrication thereof
A dual stripe magnetoresistive (DSMR) sensor element, and a method for fabricating the dual stripe magnetoresistive (DSMR) sensor element. When fabricating the dual stripe magnetoresistive (DSMR)...
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RE37819 |
Manufacturing method for magnetoresistive head having an antiferromagnetic layer of PTMN
The present invention provides a magnetoresistive head wherein: a magnetoresistive film is created in a read-track region at the center of the magnetoresistive head; an antiferromagnetic film and a...
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6430015 |
Method of fabrication of striped magnetoresistive (SMR) and dual stripe magnetoresistive (DSMR) heads with anti-parallel exchange configuration
A longitudinally magnetically biased dual stripe magnetoresistive (DSMR) sensor element comprises a first patterned magnetoresistive (MR) layer. There are contacts at the opposite ends of the...
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6344955 |
System and methods for providing a magnetoresistive element having an improved longitudinal bias magnetic field
A magnetoresistive element comprising a magnetic sensitive film responding to a magnetic field applied from the outside and a magnetic domain control film applying a bias magnetic field to said...
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6317302 |
Thin-film magnetic read head with locally reduced exchange coupling
A thin-film magnetic read head device comprises an end face extending in a first direction, in which a magnetic information carrier is movable with respect to the magnetic head device, and in a...
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6310751 |
Anti-parallel longitudinal patterned exchange biased dual stripe magnetoresistive (DSMR) sensor element and method for fabrication thereof
A dual stripe magnetoresistive (DSMR) sensor element, and a method for fabricating the dual stripe magnetoresistive (DSMR) sensor element. When fabricating the dual stripe magnetoresistive (DSMR)...
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6266217 |
Magnetic head having an anti-ferromagnetic oxide layer between a flux guide and a magneto-resistive sensor
a magnetic head with a head face includes a multilayer structure with a flux guide, a magnetoresistive sensor, and an intermediate layer present between the flux guide and the sensor. The...
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6137663 |
Magnetic head and method for magnetic recording and playback
A magnetoresistive effect type magnetic head has a magnetoresistive effect (magnetoresistive effect film) and a soft adjacent layer (SAL) that is disposed in opposition to the magnetoresistive...
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6055135 |
Exchange coupling thin film and magnetoresistive element comprising the same
The present invention aims to provide an excellent exchange coupling thin film consisting of a completely novel material other than FeMn or NiMn and having excellent corrosion resistance and high...
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6040962 |
Magnetoresistive element with conductive films and magnetic domain films overlapping a central active area
The present invention is directed to an MR element and a thin film magnetic head that do not cause an increase in the electrical resistance value due to the presence of dead zones. When forming...
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5976713 |
Exchange-coupling film and, magneto-resistance effect element and magnetic head using thereof
An exchange-coupling film has an antiferromagnetic film consisting of an antiferromagnetic alloy such as an RMn alloy or an RMnFe alloy (R is at least one kind of element selected from Ir, Rh, Pt,...
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5958612 |
Magnetoresistive read transducer
For providing a magnetoresistive read transducer capable of increasing the output by the increase of current, reduced with noises and having a durability, a magnetoresistive read transducer...
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5958576 |
Magnetoresistance effect device and magnetic head
A magnetoresistance effect device and a magnetic head according to the present invention exhibit preferable magnetic characteristics and an excellent corrosion resistance.The magnetoresistance...
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5910868 |
Magnetoresistive sensor
A magnetoresistive (MR) sensor for MR heads comprising a magnetoresistive ferromagnetic layer (MR layer) and an antiferromagnetic layer in direct contact with the surface of the MR layer. The MR...
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5805389 |
Magnetoresistive head
A magnetoresistive head comprising longitudinal bias layers composed of α-Fe2 O3 provided under an magnetoresistive layer in close contact therewith, wherein an exchange anisotropic magnetic field ...
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5764445 |
Exchange biased magnetoresistive transducer
A magnetoresistive (MR) transducer is disclosed in which an exchange coupled anisotropy field is provided by an antiferromagnetic NiMn alloy in contact with the MR alloy. Improved exchange coupling...
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5761010 |
Magnetoresistive head, manufacturing method of the head and magnetic recording/reproducing drive
A magnetoresistive head is composed of a soft magnetic layer formed on a substrate, a magnetic isolation layer formed on the soft magnetic layer, a magnetoresistive layer formed on the magnetic...
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5756191 |
Exchange coupling film and magnetoresistance effect element
An exchange coupling film comprising a first antiferromagnetic film, a ferromagnetic film formed as superposed on the first antiferromagnetic film, and a second antiferromagnetic film formed in the...
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5748413 |
Magnetoresistive reas transducer with exchange biasing of magnetoresistive sensor and soft adjacent layer
A magnetoresistive (MR) read transducer includes an MR sensor element having end regions and a center active region. The end regions are pinned both top and bottom by an exchange coupling...
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5742459 |
Magnetic head having encapsulated magnetoresistive transducer and multilayered lead structure
A magnetic head assembly includes a read head having an active central region and two inactive side regions contiguously formed relative to the central region. The central region includes a...
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5739987 |
Magnetoresistive read transducers with multiple longitudinal stabilization layers
A read transducer assembly includes a giant magnetoresistive structure in magnetic contact with a multilayered biasing structure that includes layers of antiferromagnetic material interleaved with...
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5729411 |
Magnetoresistive head and magnetoresistive recording/reproducing drive with an antiferromagnetic layer of high corrosion resistance
A magnetoresistive head in which an antiferromagnetic material having superior corrosion resistance is used is disclosed. In the magnetoresistive head, a pair of anti-ferromagnetic layers 24a and...
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5726838 |
Magnetic disc apparatus with head having magneto-resistance effect
A magnetic disc apparatus capable of noiseless, high-output reproduction is disclosed. A magnetic head including a magnetic domain control structure having an antiferromagnetic film for applying a...
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5717550 |
Antiferromagnetic exchange biasing using buffer layer
A thin film magnetic head employs antiferromagnetic and ferromagnetic layers in a layered structure to provide magnetic exchange field coupling. This structure is provided with a buffer layer which...
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5712751 |
Magnetic sensor and magnetic recording-reproducing head and magnetic recording-reproducing apparatus using same
Magnetic sensor comprises a pair of hard magnetic films magnetized inplane in directions substantially perpendicular to the direction of a signal magnetic field and substantially equal to each...
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5699213 |
Magnetoresistive head having a magnetic domain control layer
A magnetoresistive head includes a magnetoresistive film and a magnetic domain control layer, formed by a paramagnetic film which is provided in contact with the magnetoresistive film and an...
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5668685 |
Magnetic disc apparatus
A magnetic disc apparatus is disclosed, in which a magneto-resistance effect film converts a magnetic signal into an electrical signal by use of the magneto-resistance effect, a pair of electrodes...
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5668687 |
Magnetoresistive sensor employing an exchange-bias enhancing layer with a variable-composition transition region
An exchange-biased magnetoresistive (MR) read transducer in which the MR layer composition is changed at the interface with an antiferromagnetic layer, which is in direct contact with the...
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5666247 |
No-field, low power FeMn deposition giving high exchange films
A method of producing a magnetoresistive read transducer with improved longitudinal bias due to high exchange coupling is disclosed. A layer of antiferromagnetic material is sputtered deposited...
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5556718 |
Magnetoresistive head
In a magnetoresistive effect head comprising a ferromagnetic magnetoresistive effect layer, an inverse ferromagnetic layer (3) for generating a longitudinal bias magnetic field by an exchange force...
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5552949 |
Magnetoresistance effect element with improved antiferromagnetic layer
An exchange coupled film is presented, which has an antiferromagnetic film being made of N100-z Mnz (where N is at least one selected from the group consisting of Cu, Ru, Rh, Re, Pd, Pt, Ag, Au,...
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5475550 |
Enhanced cross-talk suppression in magnetoresistive sensors
A magnetoresistive transducer design for cross-talk supression and increased Neel temperature is disclosed. The transducer is formed by fabricating on a suitable substrate an antiferromagnetic...
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5471358 |
Thin film magnetoresistive head which includes a domain suppressing layer and method for manufacturing the same
In a magnetoresistive head, a domain suppressing layer is formed under each of opposite ends of a magnetoresistive film. The domain suppressing layer is composed of a first ferromagnetic film, an...
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5461527 |
Magneto-resistive head
A member having a first and a second magnetic layer are magnetostatically coupled and laminated and the first magnetic layer formed on a magneto-resistive element, for creating the exchange...
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5436778 |
Magnetoresistive sensor having antiferromagnetic exchange bias
A magnetic disk storage system wherein a magnetic includes a magnetoresistive sensor is described. The MR sensor comprises a sputtered layer of ferromagnetic material and a sputtered layer of...
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5329413 |
Magnetoresistance sensor magnetically coupled with high-coercive force film at two end regions
A magnetoresistance sensor of this invention is designed to detect a magnetic field on the basis of a change in electric resistance of a magnetoresistance layer, and includes a substrate, the...
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5315468 |
Magnetoresistive sensor having antiferromagnetic layer for exchange bias
A magnetoresistive (MR) sensor comprising a sputtered layer of ferromagnetic material and a sputtered layer of antiferromagnetic nickel-manganese (Ni-Mn) to provide an exchange coupled longitudinal...
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5287237 |
Antiferromagnetic film superior in corrosion resistance, magnetoresistance-effect element and magnetoresistance-effect head including such thin film
In order to prevent generation of Barkhausen noise of a magnetoresistance-effect element, a thin antiferromagnetic film formed of Fe-Mn-X alloy containing a third alloying element X (which serves...
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5262914 |
Magnetoresistive head with enhanced exchange bias field
A magnetoresistive (MR) read transducer in which a layered structure comprising an MR layer, an antiferromagnetic material in direct contact with the MR layer and a thin layer of interdiffusion...
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5192618 |
Corrosion protection by FeMn by ion implantation
The present invention relates to the improvement of corrosion wear resistance of iron-manganese (FeMn) film by ion implantation and subsequent annealing without substantially affecting the magnetic...
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5014147 |
Magnetoresistive sensor with improved antiferromagnetic film
An improved thin film magnetoresistive (MR) sensor uses an alloy comprising Fe(1-x) Mnx, where x is within the range of 0.3 to 0.4, as an antiferromagnetic layer to provide longitudinal exchange...
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4891725 |
Magnetoresistive sensor having antiferromagnetic exchange-biased ends
An elongated magnetoresistive sensor strip longitudinally biased to maintain a single domain sense region by exchange-biasing material atomically coupled to the strip at the ends of the strip...
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4825325 |
Magnetoresistive read transducer assembly
A magnetoresistive (MR) sensor which is provided with longitudinal bias by means of exchange coupling between the ferromagnetic MR layer (NiFe) and an ultrathin layer of an antiferromagnetic...
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4809109 |
Magnetoresistive read transducer and method for making the improved transducer
An improved magnetoresistive (MR) read transducer in which a layered structure comprising an antiferromagnetic layer in direct contact with an MR layer is subjected to a thermal annealing process...
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4785366 |
Magnetoresistive read transducer having patterned orientation of longitudinal bias
A magnetoresistive (MR) read transducer assembly in which the thin film MR layer is longitudinally biased only in the passive regions by exchange bias developed by a thin film of antiferromagnetic...
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