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7428126 Domain wall free shields of MR sensors  
A magnetic reader of the present invention comprises an MR sensor shielded by a magnetic shield including single domain soft magnetic materials. The domain wall free magnetic shield includes an...
7426096 Magnetoresistive effective element with high output stability and reduced read bleeding at track edges  
A first shielding layer and a second shielding layer are disposed by a given distance. An MR film is disposed in between the first shielding layer and the second shielding layer. The first gap film...
7419610 Method of partial depth material removal for fabrication of CPP read sensor  
A method for fabricating a read head sensor for a magnetic disk drive is presented. The method includes providing a layered wafer stack to be shaped, where the layered wafer stack includes a free...
7418778 Method for producing a CPP thin-film magnetic head  
A CPP thin-film magnetic head includes a bottom shield layer; a top shield layer, the bottom shield layer and the top shield layer being disposed at a predetermined interval; a thin-film magnetic...
7408746 Magnetoresistive device and method of manufacturing same, thin-film magnetic head, head gimbal assembly, head arm assembly and magnetic disk drive  
A magnetoresistive device comprises: a first shield layer and a second shield layer disposed with a space from each other in the direction of thickness; an MR element disposed between the first and...
7398592 Manufacturable CMP assisted liftoff process to fabricate write pole for perpendicular recording heads  
This invention describes a manufacturable method, including a CMP liftoff process, for removing masking materials after ion milling for fabricating the write pole of a magnetic head. Significant...
7394619 Disk drive write head for writing cross-track magnetizations  
An inductive write head has its write poles and write gap oriented to generate magnetic fields in the cross-track direction on a magnetic recording disk in a disk drive. The disk has the...
7383993 Combined magnetic shield member and pressure pad for a magnetic reader  
A magnetic shield member for a device with a magnetic reader, the magnetic shield member includes a biasing member including a first end, a second end opposite to the first end and an intermediate...
7382575 Transducing head including a magnetic element exhibiting varying permeability  
A transducing head has a main pole and at least one magnetic element (such as a return pole or a shield) which provides a potential return path for a magnetic field produced by the main pole. The...
7379277 Reader shield/electrode structure for improved stray field and electrical performance  
A magnetic sensing device includes a first electrode, a second electrode, a first magnetic shield, a second magnetic shield, and a sensor. The first magnetic shield forms at least a portion of the...
7379276 Magnetic recording head having a plurality of shield layers  
Provided is a magnetic recording head including a return pole, a writing pole spaced by a predetermined distance from the return pole, an induction writing coil for inducing a magnetic field to be...
7377024 Method of making a magnetic write head with trailing shield throat pad  
A method of fabricating a magnetic transducer is described which uses a trailing shield throat pad to set the trailing shield throat height. The trailing shield throat pad is used as a part of the...
7375932 Disk drive read head for reading cross-track magnetizations  
A magnetoresistive read head is capable of reading cross-track magnetizations in a magnetic recording disk drive that has the magnetized regions or magnetizations in the magnetic recording layer of...
7336450 Magnetic head with optimum aspect ratio of upper shield layer  
A magnetic head contains a write magnetic head and a read magnetic head. The write magnetic head includes a lower core layer, an upper core layer arranged over the lower core layer, and a coil...
7325296 Method of fabricating a magnetic head  
A magnetic head having a magnetic shield and/or pole layer that is fabricated as a plurality of laminated layers, in which each layer includes a sublayer thickness of Fe(N) and a sublayer thickness...
7324309 Cross-track shielding in a GMR head  
A magnetoresistive read/write head includes an integral top and side shields deposited on top of and substantially surrounding the multiple layers of the MR sensor stack. Such a design is...
7320168 Method to improve heat dissipation in a magnetic shield  
Problems such as thermal pole tip protrusion result from thermal mismatch between the alumina and pole material during the writing process. This, and similar problems due to inadequate heat...
7317596 Magnetic recording disk drive having read head with high cross-track resolution and disk with low bit-aspect-ratio  
A continuous-media or patterned-media disk drive with a low ratio of linear bit density in bits per inch (BPI) in the along-the-track direction to track density in tracks per inch (TPI) in the...
7280325 Ferromagnetic structure including a first section separated from a ferromagnetic layer by an electrically conductive nonmagnetic spacer and a second section elongated relative to the first section in at least one dimension  
A CPP magnetic sensor is disclosed with a ferromagnetic layer that extends in a first direction a first distance; a nonferromagnetic spacer layer that adjoins the ferromagnetic layer and extends in...
7280320 Thin-film magnetic head and manufacturing method thereof  
A lower shield layer is formed by being embedded in a first recess formed in an under layer. Accordingly, the distance between the lower shield layer and a slider can be reduced. Also, a second...
7274541 Magnetic thin film head, the fabrication method, and magnetic disk  
In formation of an upper shield of a magnetic thin film head by electroplating, a current density of electroplating is regulated stepwise with time. Thus, in the upper shield formation, a film...
7274540 Magnetoresistive head having an MR element between a pair of shields and including first and second underlayers  
A magnetoresistive device includes a first shield layer and a second shield layer disposed at a specific distance from each other, an MR element disposed between the first and second shield layer,...
7274539 Composite type thin film magnetic head having a low parasitic capacitance between a write coil and an upper read head shield  
A composite type thin-film magnetic head is provided, which comprises: a MR read head element having an upper shield layer, a lower shield layer, an MR layer in which a sense current flows in a...
7268663 Precision thin film AC voltage divider  
A precision AC input voltage divider of input resistance R I and feedback resistance R F on a substrate is printed as a serpentine pattern for a thin line of resistive material. The input...
7236333 Domain wall free shields of MR sensors  
A magnetic reader of the present invention comprises an MR sensor shielded by a magnetic shield including single domain soft magnetic materials. The domain wall free magnetic shield includes an...
7212382 Magnetic head including metallic material layer between write head section and read head section  
A magnetic head includes a metallic material layer between a lower core layer and an upper shield layer. This metallic material layer extends to the rear of the magnetic head in the height...
7203036 Planar extraordinary magnetoresistance sensor  
An extraordinary magnetoresistance (EMR) sensor has a planar shunt and planar leads formed on top of the sensor and extending downward into the semiconductor active region, resulting. Electrically...
7190556 Method for suppressing tribocharge in the assembly of magnetic heads  
A method for preventing electrostatic discharge (ESD) damage in the head-suspension assembly (HSA) construction process. The method teaches the formation of a novel GMR magnetic recording head on a...
7180712 Shield structure design to improve the stability of an MR head  
A method for forming a laminated shield to improve the stability and performance of an MR read head and the MR read head formed using that shield. The shield consists of two layers of ferromagnetic...
7170720 CPP read head for high density and shield noise suppression  
It is known that the magnetic shields, between which CPP GMR stacks are sandwiched, can be a source of AMR (anisotropic magneto-resistance) noise. This has been significantly reduced by coating...
7158351 Magnetic recording and reproducing head restraining a side reading  
A magnetic recording head includes an upper shield layer, a lower shield layer, a magnetoresistive film interposed between the upper shield layer and the lower shield layer, and a pair of leads...
7154713 CPP-type magnetic head with less deformation and a magnetic recording/reproducing system using the same  
A high output, magnetoresistive head with a CPP structure is disclosed which reduces or prevents deformation near the air bearing surface of the read element portion layer at the time of air...
7152305 Method for fabricating a magnetoresistive (MR) read head  
A magnetoresistive (MR) read head is disclosed including a shield layer with a recessed portion and a protruding portion defined by the recessed portion. Also included is an MR sensor located in...
7151651 Slider-level reader isolation measurement technique for advanced GMR heads  
A read/write head for a disk drive having a shorting conductor from a shield of the read element to a conductor that runs from the write element to an external electrical contact pad. This allows...
7146711 Method to make planarized GMR head for high track density  
A method for forming a planar GMR read-head having a narrow read gap, a narrow track-width and being well insulated from its lower shield. The method requires the formation of a planarized bottom...
7130161 Magnetic head having marker layer, and tape-medium reading and writing apparatus  
A magnetic head includes a first shielding layer, a second shielding layer, an MR element, and a marker layer. The layers and the element are exposed from a medium sliding surface while being...
7126794 Thin film magnetic head including heat dissipation, method of manufacturing the same, and magnetic disk drive  
Provided are a thin film magnetic head capable of inhibiting an excessive temperature rise while reducing its size in accordance with a higher recording density, and obtaining a higher read output,...
7088560 Thin film magnetic head including a heat dissipation layer, method of manufacturing the same and magnetic disk drive  
Provided are a thin film magnetic head capable of inhibiting an excessive temperature rise while reducing its size in accordance with a higher recording density, and obtaining a higher read output,...
7085109 Spin valve type transducer capable of reducing reproducing gap  
In a spin value type transducer including two magnetic shield layers, a patterned magnetoresistance element is in direct contact with one of the magnetic shield layers. A permanent magnet layer and...
7082016 Multilayer magnetic shields with compensated thermal protrusion  
A reader formed in a data transducer includes a first shield, a read gap, a second shield, a maanetic compensation layer, and a non-magnetic spacer layer. The first shield is formed of a multilayer...
7079360 Spin valve transducer having partly patterned magnetoresistance element  
In a spin value type transducer including two magnetic shield layers, a patterned magnetoresistance element is in direct contact with one of the magnetic shield layers. A permanent magnet layer and...
7079344 Magnetic recording disk drive with data written and read as cross-track magnetizations  
A magnetic recording disk drive has a disk with the magnetizations in the concentric data tracks oriented in the cross-track direction. The concentric data tracks are magnetically separated from...
7075758 Supplementary shield for CPP GMR read head  
Increases in the AP 1 and AP 2 thickness cause the free layer to be off-center in a CPP magnetic read head. This problem has been overcome by inserting supplementary magnetic shields within the...
7072133 Servo mark verify head  
The invention presents techniques for verifying patterns, such as time-based servo marks, recorded on magnetic media. Patterns of this kind can be recorded on a magnetic medium using a recording...
7061726 Thin film magnetic head  
A magnetic material having a low coefficient of thermal expansion of 11.5×10 −6 /K or less is used for forming at least one of a lower shield or an upper shield. A laminated film comprising a...
7050272 Reduction of contact noise in single-ended magnetoresistive read elements  
A single-element magnetoresistive (MR) read head with reduced susceptibility to noise is disclosed. In particular, the present invention addresses the problem of noise generated thermally through...
7046487 Magnetoresistive effective element, thin film magnetic head, magnetic head device and magnetic recording/reproducing device  
A first magnetic shielding film is disposed on one surface of a magnetoresistive effective film in a thickness direction thereof, and a second magnetic shielding film is disposed on the other...
7042683 Slider-level reader isolation measurement technique for advanced GMR heads  
A read/write head for a disk drive having a shorting conductor from a shield of the read element to a conductor that runs from the write element to an external electrical contact pad. This allows...
7031122 Magnetic shields for reduced variations of head-media spacing  
The invention offers a magnetic recording head that includes a substrate, a read sensor, and at least one shield positioned adjacent to the read sensor, wherein the shield contributes to thermal...
7031121 Perpendicular recording magnetic head with a write shield magnetically coupled to a first pole piece  
A perpendicular recording write head has ferromagnetic first and second pole pieces which are connected at a back gap and an insulation stack with a write coil layer embedded therein is located...
Matches 1 - 50 out of 245 1 2 3 4 5 >