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7116516 |
Magnetic head having write head with helical coil and method for fabrication thereof
The present invention is a magnetic head having a helical induction coil and includes hard disk drive devices that utilize the magnetic head. The helical coil is fabricated around a magnetic pole...
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7079353 |
Magnetic head having a write coil structure with a reduced electrical resistance for reducing thermal protrusion
Magnetic heads having write coil structures with reduced electrical resistances for reducing thermal protrusion are disclosed. In one illustrative example, a magnetic head includes a magnetic yoke;...
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7061716 |
Thin-film magnetic head and method of manufacturing same
A thin-film magnetic head includes a bottom pole layer, a top pole layer, a recording gap layer, and a thin-film coil. The bottom pole layer has first to fifth layers. The third layer and the fifth...
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6980396 |
Coil for thin-film magnetic head with inductive write head element
A thin-film magnetic head includes an insulation gap, first and second yoke layers with first and second ends, respectively, the first ends constituting magnetic poles separated from each other by...
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6963470 |
Thin film magnetic head having improved heat radiating property
An upper radiating layer is formed around a lower core layer without making contact with the lower core layer, and each of first and second coils has a portion facing the lower core layer and a...
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6940688 |
Coil inductive writer having a low inductance and short yoke length
A method and system for providing a thin film recording head are disclosed. The method and system include providing a first pole, providing a second pole and providing a write gap separating the...
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6927938 |
Thin film magnetic head intended to decrease inductance with track narrowing and method of manufacturing the same
The present invention provides a thin film magnetic head in which a first coil layer is formed at the back of a track width control portion. The first coil layer being location nearer a bottom core...
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6775902 |
Method of making a magnetic head with aligned pole tips
A magnetic head is fabricated by providing a substrate with a planar surface, forming at least one cavity in the planar substrate, depositing a second yoke layer in the cavity, forming a second...
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6751052 |
Thin film magnetic head with short lower magnetic pole piece
A thin film magnetic head includes an upper and a lower magnetic pole layer extending forward from a central magnetic core within a thin film coil. A narrow upper and lower front magnetic pole...
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6751053 |
Thin-film magnetic head reliably producing fringing flux at gap layer and method for fabricating the same
A thin-film magnetic head includes a lower core layer, a gap layer, an upper pole layer, and an upper core layer. At the joint between the upper pole layer and the upper core layer, the width of...
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6721138 |
Inductive transducer with stitched pole tip and pedestal defining zero throat height
An inductive transducer having first and second magnetic pedestals disposed between first and second magnetic pole layers and adjacent to a media-facing surface, the pedestals separated by a...
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6694603 |
Process of forming a magnetic microactuator
A process of forming a microactuator for positioning a transducing head over a selected radial track of a rotatable disc in a disc drive system is disclosed. A tub is etched in a substrate, and a...
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6483662 |
High density multi-coil magnetic write head having a reduced yoke length and short flux rise time
A magnetoresistive write element has a plurality of coils disposed between a first and second pole. A first coil having inner and outer contacts is provided on top of a layer of insulation on top...
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6407885 |
Thin film magnetic head and method for fabricating same
A thin film magnetic head that provides, despite a narrow head track width, strong recording magnetic fields and demonstrates a sufficiently high recording capability for the high Hc recording...
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6325947 |
Method for forming low profile multi-layer coil merged thin film magnetic head
A method for forming a merged thin film magnetic head having a first shield layer and a combined second shield and bottom pole piece layer arranged in a sandwich supporting a read sensor...
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6125010 |
Mo-Au gold seedlayer in thin film heads
A thin film head and a method for fabricating the same comprises depositing a first non-magnetic seedlayer on a substrate, forming a bottom portion of a magnetic core on the first non-magnetic...
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5978187 |
Thin film magnetic head having a lower pole shaped to improve reproduction characteristics
The leading edge of a lower pole is constituted by a protruded central parallel portion, opposite end parallel portions, and slanted portions coupling the central parallel portion and the opposite...
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5875080 |
Write head with second coil above pole having coil density less electrically connected first coil below the pole
A low inductance magnetic write head is provided with first and second pole piece layers that have first ends separated by a write gap layer and second ends connected together at a back gap. An...
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5706152 |
Thin film magnetic head having improved insulation of upper side lead terminal
In a thin film magnetic head including a substrate, a plurality of organic insulating layers, and a plurality of winding layers alternating with the organic insulating layers, a lead terminal...
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5699605 |
Method for forming a magnetic thin film head with recessed basecoat
A thin film magnetic head is carried in a recessed region which is etched in a basecoat. The thin film magnetic head includes upper and lower pole pieces having an upper pole tip and a lower pole...
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5671106 |
Matrix magnetic recording/reading head
A magnetic head including a first induction conductor coupled to a second conductor which is coupled into a closed magnetic circuit having a magnetic flux induction coil supplied with a pulsed or...
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5621594 |
Electroplated thin film conductor coil assembly
A thin film helical conductor coil assembly includes an electrically-nonconducting ceramic substrate having a substantially planar surface and separated first and second magnetic elements which...
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5612843 |
Method for accurately setting the gap in an inductive magnetic head
A process for manufacturing magnetic heads whereby a pair of separate coils are placed about the opposed legs of the magnetic loop core element with one coil comprising the read/write coil and the...
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5570251 |
Thin film magnetic device with plural valves of magnetostriction
A thin film magnetic device includes an organic insulating layer of a raised shape and a soft magnetic alloy thin film covering the organic insulating layer. The soft magnetic alloy thin film has a...
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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...
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5418668 |
Thin-film magnetic transducer with multiple yoke-coil interactions and elongated lateral yoke vias
A thin film magnetic head, and process for making the same, features a thin film magnetic transducer formed from multiple layers of film and having a magnetic yoke interacting with an electrical...
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5241440 |
Thin film magnetic head and manufacturing method therefor
A thin film magnetic head including conductor coils, a plurality of insulating layers to interpose and insulate the conductor coils and a magnetic gap layer between upper and lower magnetic cores,...
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5198949 |
Thin film magnetic head with shaped magnetic layer
A thin film magnetic head has a lower magnetic layer and an upper magnetic layer formed over the lower magnetic layer so that a small gap is formed between a magnetic gap section of the lower...
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5142425 |
Disk drive in which magnetic head-to-disk capacitive coupling is eliminated
A thin film magnetic data transducer which prevents capacitive coupling between the transducer and the disk of a disk drive system, has a magnetic circuit which is maintained at the same potential...
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5126971 |
Thin film magnetic core memory and method of making same
A thin film magnetic core array has a large number of individual thin film core memory elements arranged on a substrate with X, Y, Z and SENSE conductor leads reeving through the core elements...
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5111351 |
Integrated magnetic read/write head/flexure/conductor structure
An integrated head/flexure/conductor structure in a system for the reading and writing of information with respect to a relatively moving, contacted medium, such as a disk or drum, and a method for...
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4872079 |
Thin film magnetic head with a leveler layer
A thin film magnetic head having a substrate, a magnetic head and a superstrate formed of materials which are highly resistive to being abraded by a magnetic media being moved thereacross is shown....
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4684438 |
Process for producing a coil for a magnetic recording head
A process for producing a coil for a magnetic recording head and the coil obtained by this process. An insulating film which covers a support is etched in order to give it the shape of a first...
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4198667 |
Magnetic head platform incorporating at least one integrated transducer
A method of producng magnetic head-carrying platforms for supporting one or more integrated transducers arranged on an insulative base and having electrical output strips and an insulating...
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