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Match Document Document Title
7369359 Thin film magnetic head having sectional shape of write magnetic pole formed as a trapezoid  
A thin film magnetic head having a high write-in accuracy can be produced by suppressing a magnetic field leak between upper and lower magnetic poles. The method of producing the thin film magnetic...
7207099 Method of manufacturing thin-film magnetic head having a magnetism intercepting layer provided between read head and write head  
A thin-film magnetic head comprises a read head and a write head. The read head and the write head are placed such that a top shield layer of the read head and a bottom pole layer of the write head...
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...
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...
7023659 Magnetic head having an antistripping layer for preventing a magnetic layer from stripping  
By inserting a first antistripping layer comprising a first non-magnetic layer 22 and a first conductive layer 23 between a first magnetic layer 16 and a magnetic separation layer 13 ,...
6950279 Thin-film magnetic head with thin-film coil of low resistance  
A thin-film magnetic head comprises a medium facing surface, a bottom pole layer, a top pole layer, a recording gap layer, and a thin-film coil. The bottom pole layer and the top pole layer are...
6940689 THIN-FILM MAGNETIC HEAD COMPRISING A FIRST POLE LAYER HAVING MULTIPLE LAYERS INCLUDING A SECOND LAYER AND A THIN-FILM COIL HAVING A PORTION DISPOSED BETWEEN THE SECOND LAYER AND A COUPLING PORTION AND METHOD OF MANUFACTURING THE THIN-FILM MAGNETIC HEAD  
A thin-film magnetic head comprises a medium facing surface, a bottom pole layer, a top pole layer, a coupling portion, a recording gap layer, and a thin-film coil. The coupling portion is disposed...
6934121 Process for planarizing patterned metal structures for magnetic thin film heads  
A process for planarizing a patterned metal structure for a magnetic thin film head includes the steps of applying an encapsulation/planarizing material on a substrate, spinning the substrate in a...
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...
6882508 Thin-film magnetic head having a magnetism intercepting layer provided between read head and write head  
A thin-film magnetic head comprises a read head and a write head. The read head and the write head are placed such that a top shield layer of the read head and a bottom pole layer of the write head...
6882502 Thin-film magnetic head with narrowed track width and method for making same  
A thin-film magnetic head includes a lower core layer, a gap layer formed on the lower core layer with a lower pole layer therebetween, an upper pole layer formed on the gap layer, an upper core...
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...
6826015 Flux concentrating stitched write head  
A flux concentrating stitched write head design for high data rate applications is provided. The flux concentration is achieved by means of a non-magnetic step embedded into a portion of the lower...
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...
6795263 Magnetic head  
In a high-frequency impedance type magnetic head having high impedance and capable of efficiently detecting a change in impedance, an electrically conductive metal film is sandwiched between two...
6781790 Thin film magnetic head having a write gap layer  
A write gap layer 29 is formed such that a first magnetic layer 28 constituting a bottom pole chip and a bottom pole is covered with the write gap layer, a thin film coil 30 is formed in a...
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...
6778356 Thin film magnetic head and method of manufacturing the same  
In the thin film magnetic head of the present invention, angle of an end face of a heaped layer with respect to a lower magnetic pole layer is made obtuse so as to prevent flux leakage at a rear...
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...
6697219 Thin film magnetic head capable of reducing inductance and manufacturing method therefor  
A thin film magnetic head is capable of reducing inductance by shortening a magnetic path, and also preventing a cavity from being formed in a coil insulating layer. The coil insulating layer is...
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...
6678117 Magnetic transducer with bilayer pole piece structure with improved milling endpoint detection  
A magnetic transducer with a bilayer pole piece in which a first layer of material forms the body of the pole piece and a second layer forms the pole tip after milling is disclosed, along with a...
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...
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...
6604274 Method of producing thin film magnetic head  
A method for fabricating a thin film magnetic head is disclosed. A nonmagnetic gap layer is formed on a lower gap layer. A first insulating layer is formed on a first part of the nonmagnetic gap...
6510025 Thin film magnetic head including a protrusion structure and an insulation film in a magnetic core  
An inductive thin-film magnetic head with small fluctuations of the reproduction output and noises for reproduction is disclosed. The forward end of each of a lower magnetic core and an upper...
6510024 Magnetic head and method of manufacturing the same  
There is provided a magnetic head which is able to enhance the magnetic field intensity to be generated by shaping a magnetic pole, and a method of manufacturing the same. The method of...
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...
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...
6477005 Thin-film magnetic head having a magnetic layer including an auxiliary layer made of a high saturation flux density material and method of manufacturing same  
The present invention achieves reductions in a track width of a recording head and in a yoke length. A thin-film magnetic head of the invention comprises a reproducing head and a recording head....
6445536 Dielectric stencil-defined write head for MR, GMR, and spin valve high density recording heads  
A thin film head apparatus and method for forming such a thin film head. In one approach, the present invention recites forming a cavity in a dielectric layer. Next, a layer of high magnetic field...
6430009 Magnetic head shield pole with nonmagnetic separation film between transition portion and shield portion  
A compound thin film magnetic head in which the upper shield of the readout MR head also serves as the lower magnetic film of the write inductive head. The upper shield has a layered structure...
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...
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...
6278590 High moment laminated layer with nickel cobalt or nickel iron cobalt based alloy layer for first pole piece of write head  
A material is provided for the first shield and/or second shield/first pole piece layer of a merged MR head. The material employed is nickel cobalt (Ni 70 Co 30 ) (wt. %) or a nickel iron cobalt...
6278579 Dual-element thin-film magnetic head including a composite lower core  
An inductive thin-film magnetic head with small flucuations of the reproduction output and noises for reproduction is disclosed. The forward end of each of a lower an upper magnetic and an upper...
6266210 Magnetic recording and reading device  
Provided is a large-capacity magnetic recording and reading device having a magnetic recording medium, a magnetic head and a circuit enable density to be increased even during recording in high...
6262867 Thin film magnetic head with Ni-Fe alloy thin film  
A thin film magnetic head and a disk storage system having a magnetic disk and the thin film magnetic head provided on a floating type slider. The thin film magnetic head has an upper magnetic core...
6259583 Laminated yoke head with a domain control element  
The present invention is a magnetic head which has a preferably planar pole member having a yoke and a tip with a first planar pole P1 and a second planar pole P2 positioned above pole P1. The pole...
6233116 Thin film write head with improved laminated flux carrying structure and method of fabrication  
The present invention provides a thin film write head having an improved laminated flux carrying structure and method of fabrication. The preferred embodiment provides laminated layers of: high...
6198597 Thin-film magnetic head having improved magnetic pole structure  
A thin-film magnetic head comprises a magnetic gap disposed to be positioned on an air bearing surface of the magnetic head, a pair of magnetic poles disposed to hold the magnetic gap therebetween,...
6163442 High moment bilayer first pole piece layer of a write head with high magnetic stability for promoting read signal symmetry of a read head  
A high moment bilayer first pole piece layer of a write head has high magnetic stability for promoting read signal symmetry of a read sensor of a read head. The bilayer first pole piece layer has a...
Matches 1 - 50 out of 104 1 2 3 >