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Match Document Document Title
7433151 Method of manufacturing magnetic head using magnetic head sub-structure with indicators for indicating the location of the ABS  
A method of manufacturing magnetic heads comprises the step of: fabricating a magnetic head substructure by forming a plurality of components of the magnetic heads on a single substrate, wherein a...
7417825 Thin film magnetic head structure, adapted to manufacture a thin film magnetic head  
A thin-film magnetic head structure has a configuration adapted to manufacture a thin-film magnetic head configured such that a main magnetic pole layer including a magnetic pole end part on a side...
7405905 Perpendicular magnetic recording and reproducing head  
There is provided a perpendicular magnetic recording and reproducing system in which the overwrite erase ratio of a perpendicular magnetic head has been improved to prevent the deterioration of an...
7394621 Using bilayer lithography process to define neck height for PMR  
A method for independently forming neck height (NH) and pole width dimensions in a main pole layer of a PMR write head is described. A main pole layer with a pole tip region is formed on a bottom...
7388732 Perpendicular recording magnetic head with a write shield megnetically 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...
7375925 Magnetic head for perpendicular magnetic recording and method of manufacturing same  
A pole layer incorporates: a first portion having an end face located in a medium facing surface; and a second portion having a thickness greater than that of the first portion. A surface of the...
7369361 Magnetic head and magnetic head substructure including resistor element whose resistance corresponds to the length of the track width defining portion of the pole layer  
A method of manufacturing magnetic heads comprises the step of: fabricating a magnetic head substructure by forming components of a plurality of magnetic heads on a single substrate, wherein a...
7368227 Method to print photoresist lines with negative sidewalls  
It is very difficult to produce a negative wall angle from either negative or positive-tone chemically amplified resists, especially by e-beam lithography. This problem has now been overcome by...
7367112 Method of fabricating a head for perpendicular magnetic recording with a self-aligning side shield structure  
A method is provided for fabricating a head for perpendicular recording with self-aligning side shields. The voids where the side shields will be formed are milled into the layer of material for...
7365942 Thin-film magnetic head  
A thin-film magnetic head for perpendicular magnetic recording comprises a coil, a main magnetic pole layer for performing perpendicular recording, a write shield layer and a write gap layer,...
7336442 Magnetic head and method of manufacturing same, and magnetic head substructure  
A method of manufacturing magnetic heads comprises the steps of: fabricating a magnetic head substructure by forming components of a plurality of magnetic heads on a single substrate so that a...
7333296 Magnetic head for perpendicular magnetic recording including pole-layer-encasing layer that opens in the top surface thereof and nonmagnetic conductive layer disposed on the top surface of the pole-layer-encasing layer  
A pole layer is disposed in a groove of a pole-layer-encasing layer made of a nonmagnetic material with a nonmagnetic film disposed between the encasing layer and the pole layer. A polishing...
7313863 Method to form a cavity having inner walls of varying slope  
An improved mold, for use in the formation of a perpendicular magnetic write head, is described, together with a process for its manufacture. Conventional alumina is replaced by tantalum in the...
7301727 Return pole of a transducer having low thermal induced protrusion  
A transducer including a return pole having a return pole tip extending to an external surface of the transducer. The external surface of the return pole tip has an area that is larger than a...
7292414 External coil bias for giant magneto-resistive sensor  
A disk includes a perpendicular recording disk, a head having a read portion to read information recorded on the perpendicular recording disk, a sensor in the read portion, and a coil structure,...
7268974 Magnetic write head having a notched yoke structure with a trailing shield and method of making the same  
A magnetic write head for a data storage device includes a pole piece layer; a pole tip structure formed over the pole piece layer; a trailing shield formed at least in part along an air bearing...
7241516 Soft magnetic underlayer with exchange coupling induced anisotropy for perpendicular magnetic recording media  
An improved soft underlayer structure for perpendicular magnetic recording. The structure includes at least two soft underlayers separated by a non-magnetic spacer layer. The soft underlayer...
7239478 Write element for perpendicular recording in a data storage system  
A write element for perpendicular recording in a data storage system is fabricated to maintain the thickness of a side shield at both edges of a pole P 3 , and to form the pole P 3 in a...
7227720 Magnetic head for perpendicular magnetic recording and method of manufacturing same  
A pole layer has an end that is located in a medium facing surface and that incorporates a first side closer to a gap layer and a second side opposite to the first side. A shield layer has an end...
7218475 Thin film magnetic head and magnetic recording apparatus  
A thin film magnetic head capable of preventing unintentional erasing of information during non-recording, ensuring its magnetic operating characteristics with stability. A top read shield layer...
7212367 Ampere wire write head with confined magnetic fields  
A magnetic recording head comprises a write pole having a tip adjacent to an air bearing surface of the recording head, a return pole magnetically coupled to the write pole, a conductor positioned...
7193816 Magnetic head for perpendicular magnetic recording and method of manufacturing same  
A magnetic head comprises a pole layer, a gap layer, a shield layer, a nonmagnetic layer, and a coil. The shield layer incorporates: a first layer disposed on the gap layer; a second layer disposed...
7179551 Poly(arylene ether) data storage media  
A storage media comprises: a substrate comprising a plastic resin portion, wherein to plastic resin portion comprises poly(arylene ether) and a styrene material selected from the group consisting...
7161755 Increasing areal density in magnetic recording media  
A magnetic recording medium is made of a thin film medium that includes magnetic grains. At least one of a magnetization density of the magnetic grains, a crystalline anisotropy field of the...
7154707 Thin film magnetic head and magnetic recording apparatus  
Provided is a thin film magnetic head capable of securing recording characteristics even in the case where a return pole layer is disposed on a medium-outgoing side of the pole layer. The return...
7153597 Magnetic recording media having chemically modified patterned substrate to assemble self organized magnetic arrays  
A data storage medium is provided according to the present invention for magnetic recording. The data storage medium includes a substrate having a locking pattern etched therein defining patterned...
7149045 Longitudinal media with soft underlayer and perpendicular write head  
A magnetic recording device including a longitudinal magnetic recording medium. The longitudinal magnetic recording medium includes a magnetically soft underlayer disposed under a longitudinal...
7106554 Perpendicular magnetic writer with magnetic potential control shield  
Conventional perpendicular writers that utilize an extended return pole are subject to large undershoot fields. This problem has been reduced by replacing the prior art extended return pole by one...
7087290 Data storage media utilizing a substrate including a plastic resin layer, and method thereof  
In one embodiment, a data storage media comprises: a substrate comprising at least one plastic portion, an edge lift height of less than about 8μ, and an axial displacement peak of less than about...
7075756 Shielded pole writer  
A read/write head for a disk drive having a magnetoresistive (MR) read element and an inductive write element suitable for perpendicular recording of data onto a disk having a media layer in which...
7054105 Magnetic recording head for perpendicular recording and including a portion protruding toward a mail pole and magnetic disc storage apparatus mounting the magnetic head  
A magnetic field distribution of a recording head is made linear so that a curvature of the magnetic-transition pattern in recording bit cells can be corrected. In a SPT head having a main pole 1 ...
7042682 Fully shielded perpendicular recoding writer  
Conventional perpendicular writers that utilize an extended return pole are subject to large flux leakage. This problem has been reduced in the prior art by adding a downstream shield. This still...
7041394 Magnetic recording media having self organized magnetic arrays  
A magnetic recording disc is provided according to the present invention for magnetic recording. The magnetic recording disc includes a disc substrate having a locking pattern etched therein....
7031110 Thin film magnetic head, magnetic head device and magnetic recording/reproducing device  
A first magnetic film includes a first pole piece, and a second magnetic film includes a second magnetic piece. A gap film is disposed between the first pole piece and the second pole piece. The...
7019943 Thin-film magnetic head with improved external magnetic field-blocking characteristics  
A thin-film magnetic head comprises an inductive type electromagnetic transducer having a first magnetic pole, a second magnetic pole, and a thin-film coil. A recording shield layer made of a...
6965494 Magnetic recording head having a first pole for generating an easy axis field and an auxiliary pole for generating a first auxiliary hard axis field that opposes an initial hard axis field  
A magnetic recording head includes a first pole having multiple magnetic layers separated by multiple gap layers. The multiple magnetic layers make up a write pole which produces a first hard axis...
6954340 Perpendicular magnetic recording head with nonmagnetic write gap greater than twice side shield gap distance  
A magnetic head for perpendicular recording on double layer media with suppressed side writing and controlled write width is disclosed. The present invention reduces the problem of side writing and...
6894856 Magnetic recording medium, magnetic recording apparatus using the same, and method and apparatus for manufacturing the magnetic recording medium  
A magnetic recording apparatus provides improved resolution and S/N without adversely affecting thermal stability. An angle formed by the direction of easy magnetization of a recording layer and...
6842313 Floating down stream perpendicular write head shield  
A read/write head for a disk drive having a magnetoresistive (MR) read element and an inductive write element suitable for perpendicular recording of data onto a disk having a media layer in which...
6752952 Embossing methods  
In one embodiment, the method far embossing a substrate, includes: heating a first substrate to a temperature above a glass transition temperature; preheating and maintaining a mold at a mold...
6715200 Methods for making data storage media  
Methods for forming data storage media and the media formed thereby are disclosed herein. In one embodiment, the method for forming a data storage media, comprises: injection molding a substrate...
6667848 Perpendicular magnetic recording head with means for suppressing noise from soft magnetic underlayer of recording media  
The present invention provides a modified perpendicular magnetic recording head which generates a relatively small magnetic field in the soft underlayer of a magnetic recording disk in order to...
6646827 Perpendicular magnetic recording head with write pole which reduces flux antenna effect  
A perpendicular magnetic recording head includes a write pole designed to reduce or eliminate problems caused by stray magnetic fields. By positioning a write coil close to the air bearing surface...
6430010 Disc drive reader with reduced off-track pickup  
A method and apparatus for reducing the amount of off-track pickup by a read/write head in a disc drive are disclosed. The read element of the head is placed in a separation zone formed between two...
6359744 Reducing thermal decay of data signals recorded on magnetic media  
A data storage device 15 comprises a recording head 35 and a recording media comprising a layer of magnetic material having an anisotropy that is substantially perpendicular to a plane of the...
5715597 Method for manufacturing thin film magnetic head  
An improved thin film magnetic recording head includes a pole tip assembly which has a precisely formed physical geometry. The physical geometry of the pole tip assembly minimizes deleterious...
5675461 Thin film magnetic recording head for minimizing undershoots  
An improved thin film magnetic recording head includes a pole tip assembly which has a precisely formed physical geometry. The physical geometry of the pole tip assembly minimizes deleterious...
5452166 Thin film magnetic recording head for minimizing undershoots and a method for manufacturing the same  
An improved thin film magnetic recording head includes a pole tip assembly which has a precisely formed physical geometry. The physical geometry of the pole tip assembly minimizes deleterious...
5431969 Method of making a magnetic medium for longitudinal recording  
The magnetic medium includes a magnetic under image layer which may be separated from the hard magnetic recording layer by a nonmagnetic buffer layer. Virtual magnetic images induced in the...
5428893 Method of making a transducer with improved inductive coupling  
A thin film magnetic transducer formed in multiple layers and comprising a yoke having a plurality of arms, at least one of which has segments lying in separate layers and connected through a...
Matches 1 - 50 out of 66 1 2 >