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Match Document Document Title
7151647 Thin film magnetic head and manufacturing method for creating high surface recording density and including a second yoke portion having two layers of which one is etched to form a narrow portion and a sloped flare portion  
The invention is directed to improvement of a write element of a thin film magnetic head. In the write element, a first coil and a second coil are provided on a first insulating film formed on one...
7113367 FeNiRe soft magnetic film and thin film magnetic head using the same for simultaneous adjustment of resistivity and saturated magnetic flux density  
A soft magnetic film composed of an alloy represented by the formula FeNiRe is used for forming a lower core layer and/or an upper core layer. Since having a high saturated magnetic flux density, a...
7102854 Transducing head with reduced side writing  
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...
7061719 Thin film magnetic head and method of manufacturing the same  
A thin film magnetic head which has a thin film coil for generating a magnetic flux and a magnetic pole layer for emitting the magnetic flux generated by the thin film coil toward a recording...
7060207 Thin film magnetic head and magnetic recording apparatus having a lowered coil resistance value, reduced generated heat, and high-frequency  
The invention is directed to improvement of a thin film magnetic head of a magnetic recording apparatus. The magnetic head includes a write element, in which a first coil and a second coil are...
7046480 Thin film magnetic head and manufacturing method thereof  
The invention is directed to improvement of a write element of a thin film magnetic head. The first pole portion projects from a flat surface of a first yoke portion at a medium-facing surface side...
6975486 Thin film write head having a laminated, flat top pole with bottom shaper and method of fabrication  
A writer for high frequency, data storage heads. The writer includes a first magnetic pole upon which a write gap pedestal is formed with an upper pedestal layer of high moment material with a...
6970324 Thin film head with nickel-iron alloy non-magnetic substratum between non-magnetic gap layer and upper magnetic pole layer  
A soft magnetic film includes a ferromagnetic layer. The ferromagnetic layer is laid over a non-magnetic substructure including ferromagnetic atoms. The uniaxial magnetic anisotropy may be...
6954333 Thin film magnetic head having partial insulating layer formed on bottom pole layer through gap layer and method of manufacturing the same  
A thin film magnetic head wherein a partial insulating layer is formed on a bottom pole layer with a gap layer provided therebetween, the gap depth Gd being regulated by the distance from a surface...
6952326 High data rate write head  
A magnetic head assembly includes first and second pole pieces and first and second coil layers wherein the second pole piece has a ferromagnetic pole tip which forms a portion of an air bearing...
6912106 Writer with a hot seed zero throat and substantially flat top pole  
A method and system for providing a recording head is disclosed. The method and system include providing a first pole, a second pole, a write gap and at least one coil. The write cap separates the...
6909579 Magnetic head with a vertically laminated back gap structure having magnetic layer thicknesses less than the skin depth  
A magnetic write head having a vertically laminated back gap structure and method of making the same are disclosed. The magnetic head is formed with lower and upper pole pieces and a back gap...
6885519 Thin film magnetic head and the manufacturing method  
Provided are a thin film magnetic head having superior overwrite characteristics as well as having a locally minimized pole width and a method of manufacturing the same. A top pole chip comprises a...
6876526 Bilayer shared pole extension for reduced thermal pole tip protrusion  
A transducing head formed upon a slider has an air bearing surface, a top magnetic pole, a shared magnetic pole, a write via, and a shared pole extension. The write via is positioned opposite the...
6851178 Process of manufacturing a magnetic write head  
One of the major requirements for higher frequency extendability is to reduce yoke length and inductance in order to have fast saturation. This has been accomplished by using a design that provides...
6826013 Thin film magnetic head  
A thin film magnetic head comprising a substrate, a lower magnetic pole provided on the substrate, a write gap layer located on the lower magnetic pole, and an upper magnetic pole located on the...
6822830 Thin-film magnetic head and method of manufacturing same  
A top pole layer in a write head includes, in a pole portion, a first layer having surfaces one of which is adjacent to a write gap layer, a second layer having surfaces one of which is adjacent to...
6819531 Magnetic recording and reading device having 50 mb/s transfer rate  
A magnetic recording and reading device having a transfer rate of not less than 50 MB/s includes a magnetic recording medium having an absolute value of normalized noise coefficient per recording...
6801407 Thin film magnetic head and method of manufacturing the same  
A write gap film and a first magnetic material film are formed on a bottom pole, a first non-magnetic film is formed in a space formed by etching a portion of the first magnetic material film other...
6795272 Thin film magnetic head and magnetic storage apparatus  
A thin film magnetic head includes a lower magnetic pole, an upper magnetic pole provided so as to face the lower magnetic pole, and a magnetic gap layer provided between the lower magnetic pole...
6785952 Method for manufacturing a thin film magnetic head  
A first magnetic film, a gap film, a thin film coil supported by a insulated film and a second magnetic film are formed in turn. The second magnetic film has a pole part opposite to the first...
6780530 Magnetic material having a high saturation magnetic flux density and a low coercive force  
A magnetic material includes a main component expressed by a general formula CoNiFeX, wherein X is at least one element selected from the group consisting of Cr, Ti, V, Ru, Rh, Pd, Os, Ir and Pt,...
6778358 Magnetically soft, high saturation magnetization laminates of iron-cobalt-nitrogen and iron-nickel  
In one aspect, a laminated structure including a first plurality of layers containing primarily-iron FeCoN interleaved with a second plurality of layers containing primarily iron FeNi is disclosed....
6778357 Electrodeposited high-magnetic-moment material at writer gap pole  
A magnetic head for use in magnetic data storage systems is provided. The magnetic head includes a substantially non-magnetic writer gap layer and pair of magnetic poles separated by the writer gap...
6738222 Thin-film magnetic head and method of manufacturing same  
A thin-film magnetic head comprises first and second magnetic layers, a gap layer provided between the first and second magnetic layers, and a thin-film coil at least a part of which is disposed...
6728064 Thin-film magnetic head having two magnetic layers, one of which includes a pole portion layer and a yoke portion layer, and method of manufacturing same  
A thin-film magnetic head comprises first and second magnetic layers, a gap layer provided between the first and second magnetic layers, and a thin-film coil at least a part of which is disposed...
6724571 Magnetic head for hard disk drive having varied composition nickel-iron alloy magnetic poles  
A magnetic head for a hard disk drive. The magnetic poles of the head are formed with a NiFe alloy having a graduated composition in which a higher Fe concentration is fabricated proximate the...
6723449 Structure and plating method of thin film magnetic head and magnetic storage apparatus  
A material for magnetic pole for attaining a writing head generating an intense recording magnetic field, and a structure and a manufacturing method therefor. The thin film magnetic head includes a...
6693769 High data rate write head  
A magnetic head assembly includes first and second pole pieces and first and second coil layers wherein the second pole piece has a ferromagnetic pole tip which forms a portion of an air bearing...
6687082 Magnetic head and manufacturing method thereof and magnetic recording and reproducing apparatus  
A magnetic head and a manufacturing method of the magnetic head and a magnetic recording and reproducing apparatus used this head, in which the following problem is solved, are provided. A plated...
6667850 Bilayer liftoff process for high moment laminate  
The magnetic tape recording head of the present invention is formed with magnetic poles that are comprised of a laminated NiFeN/FeN structure. The method for fabricating the magnetic poles utilizes...
6665144 Thin film magnetic head and method of making wherein the head includes a magnetic layer including an underlayer and a coating layer with each having a uniform width portion and a wider portion  
Provided are a thin film magnetic head and a method of manufacturing the same, which can quite reduce a pole width with high accuracy while improving overwrite characteristics. A top pole comprises...
6633453 Shallow recessed T-head with reduced side-writing and method for making the same  
In a T-head design, it is desirable to reduce the side-writing that occurs during the write operation. The side-writing causes the track width to increase and therefore reduces the track density...
6632520 Magnetic film  
Magnetic film comprising a substantially crystalline magnetic layer and an intermediate layer alternately formed in contact with each other, wherein the magnetic layer has composition (M 1 α 1 X 1...
6628478 Write head with all metallic laminated pole pieces with thickness differential  
A magnetic write head has first and second pole piece layers wherein each pole piece layer is a lamination of alternate ferromagnetic and nonmagnetic metal films. Each nonmagnetic metal film causes...
6618223 High speed, high areal density inductive writer  
An inductive write element is disclosed for use in a magnetic data recording system. The write element provides increased data rate and data density capabilities through improved magnetic flux flow...
6542331 Magnetic head having write head with double split yoke  
The magnetic head of the present invention includes a P 1 pole having an opening formed therethrough, and a P 2 pole that is formed over the opening. A second magnetic pole tip is positioned...
6538845 Thin-film magnetic head having a high specific resistance layer  
A high-specific-resistance layer is formed on a soft magnetic layer of an upper core layer in a thin-film magnetic head. The high-specific-resistance layer has a specific resistance which is higher...
6507457 Magnetic head  
A magnetic head comprising a substrate, a non-magnetic seed layer deposited on the substrate, a bottom magnetic core piece positioned over and contacting the non-magnetic seed layer, a magnetic...
6490131 Thin film magnetic head with electroplated Ni-Fe alloy thin film having small average crystal grain size range  
A slider having a thin film magnetic head. The thin film magnetic head has an upper magnetic core, a lower magnetic core and a coil disposed between the upper magnetic core and the lower magnetic...
6490126 Thin-film magnetic head having a magnetic layer including stacked magnetic material layers and a resistance layer and method of manufacturing same  
The present invention reduces eddy current loss in magnetic layers making up a magnetic path of an induction-type magnetic transducer without preventing the passage of a magnetic flux so as to...
6490125 Thin film write head with improved yoke to pole stitch  
The present invention provides an write head having an improved upper pole tip-to-yoke stitch. The upper pole tip is formed having an open faced sloping surface at an end of the pole tip distal...
6477765 Method of fabricating a magnetic write transducer  
What is disclosed is a method of fabricating a thin film magnetic write transducer and the resulting write transducer structure. The method starts with the formation of a bottom pole of the write...
6407892 Magnetic recording and reading device  
A magnetic recording and reading device which has a transfer rate of not less than 50 MB/s and which includes a magnetic recording medium having an absolute value of normalized noise coefficient...
6404605 Magnetic recording and reading device  
A magnetic recording and reading device which has a transfer rate of not less than 50 MB/s and which includes a magnetic recording medium having an absolute value of normalized noise coefficient...
6385009 Thin film magnetic head and assembled construction thereof  
A thin film magnetic head having a first magnetic core, a second magnetic core formed on the first magnetic core, a coil disposed between the first magnetic core and second magnetic core, and a...
6377423 Planar stitched write head having write coil insulated with inorganic insulation  
A write head has a second pole tip layer, a coil layer and a write coil insulation layer that are planarized at their top surfaces. A thin top insulation layer insulates the top of the coil layer...
6324035 Magnetic recording and reading device  
A magnetic recording and reading device having a magnetic head assembly in which a magnetic head is mounted on a suspension, an R/W-IC having a line width of not more than 0.35 μm and a magnetic...
6301075 Thin film magnetic head  
A thin film magnetic head includes a first magnetic core layer and a second magnetic core layer and a coil layer provided between the first and second core layers for inducing a recording magnetic...
6296955 High moment and high permeability transducer structures and formation  
Magnetically permeable, high magnetic saturation, primarily iron NiFe alloys are formed on thin seed layers by sputtering and electroplating. Pole layers a few microns in thickness can be formed of...
Matches 1 - 50 out of 121 1 2 3 >