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8154825 |
Magnetic recording head and magnetic recording device
It is made possible to provide a magnetic head that can stabilize the high-frequency magnetic field generated from the spin torque oscillator. A magnetic head includes: first and second main...
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7724469 |
High frequency field assisted write device
A magnetic writer includes a write element and an oscillation device disposed adjacent to the write element. The first oscillation device includes a first magnetic layer, a second magnetic layer...
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7692897 |
Grounded writer core
A transducing head includes a substrate, a writer positioned upon the substrate, and a reader positioned adjacent the writer. The writer is in electrical contact with the substrate.
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7542246 |
Transducer with pole tip protrusion compensation layer
A transducer for a disk drive head includes a pole tip protrusion (PTP) compensation layer disposed proximate to a write element of the head to at least partially offset the effect of pole tip...
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7538977 |
Method and apparatus for providing diamagnetic flux focusing in a storage device
A method and apparatus for providing improved flux focusing in a write head is disclosed. The present invention uses a diamagnetic material to provide flux focusing in a storage device. An...
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7463448 |
Thin film magnetic head having upper and lower poles and a gap film within a trench
The present invention is directed to a thin-film magnetic head having no ATE (adjacent track erase) problem, a very narrow track width, an excellent O/W (overwrite) characteristic and a high...
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7397633 |
Writer structure with assisted bias
A recording head for use with a storage medium is provided. The recording head includes a substrate, a magnetic pole, a first magnetic bias structure positioned on a first side of the magnetic...
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7092205 |
Isolated transducer portions in magnetic heads
A magnetic head having an air bearing surface reads and writes data to and from a disc. The magnetic head includes a substrate and a data transducer positioned upon the substrate adjacent the a...
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7031109 |
Semiconductor materials used in magnetic recording head assemblies to prevent damage from electrostatic discharge
The invention includes a magnetic recording head that has at least one structure or substructure that is made of a semiconductor material that protects the head from damage or destruction arising...
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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...
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6914750 |
Thermal protrusion reduction in magnet heads by utilizing heat sink layers
A magnetic read/write head and slider assembly and method for forming the magnetic read/write head and slider assembly, wherein the assembly has improved heat spreading and dissipation properties...
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6779249 |
Method and device for determining in-process characteristics of fabricated magnetic heads
A method for determining a characteristic of a magnetic head during its fabrication process on the surface of a wafer substrate. The method involves the fabrication of a test magnetic pole artifact...
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6661605 |
Transducing head having a reduced thermal pole tip recession
A magnetic head having an air bearing surface, a substrate, a basecoat, a data transducer and a plurality of insulating layers. The basecoat is positioned upon the substrate. The data transducer,...
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6580583 |
Magnetic head with integrated circuit on a rigid body
A thin-film magnetic head has a semiconductor substrate in which there is an integrated circuit, and on which a magnetic layer structure is arranged. During manufacturing the integrated circuit is...
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6477008 |
Magnetic recording transducer with electronic shield
The present invention is a read/write head for writing information to magnetic media and reading information from magnetic media. It includes a write head element for writing information onto...
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6469868 |
Thin film magnetic head having a nonmagnetic conductive layer and method of manufacturing same
It is an object of the invention to improve characteristics of a thin-film magnetic head in the case where the frequency of data to write is high, in particular. In a thin-film magnetic head of the...
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6452740 |
Multi-stage thermoelectric microcoolers for cooling write coils and GMR sensors in magnetic heads for disk drives
An improved read/write head for use in computer hard drives is provided. In one embodiment, the read/write head includes first and second thermally conducting plates and a first and second stage of...
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6285528 |
Thin-film magnetic head
A thin-film magnetic head including a ring-shaped magnetic core and a coil surrounded by the magnetic core, given that an inner circumferential length of the magnetic core surrounding the coil is...
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6178065 |
Thin film magnetic head and manufacturing method of the head
A thin film magnetic head has a recording gap layer made of a nonmagnetic material, lower and upper magnetic pole layers made of a magnetic material, the lower and upper magnetic pole layers...
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6078479 |
Magnetic tape head with flux sensing element
A thin film read-write magnetic head useful in a tape apparatus includes a magnetic circuit consisting of two thin film magnetic layers which form a magnetic yoke that is divided into three closely...
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6038109 |
Magnetic head and method of manufacturing the same
According to a magnetic head and a method of manufacturing the same, a connecting process required when a magnetic head is attached to a head base can be implemented with ease. A pair of magnetic...
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5910870 |
Magnetoresistive effect composite head with laminated magnetic layer isolated from magnetic pole layer
A multi-layer structure includes a magnetic pole layer, a magnetic isolation layer extending over the magnetic pole layer, and a magnetic layer extending over the magnetic isolation layer so that...
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5774308 |
Thin film inductive head and magnetic writing/reading drive including the same
A thin film inductive head for use in writing/reading magnetic signals in a magnetic disk drive or a magnetic tape unit, comprises two magnetic cores formed of respective magnetic layers, said two...
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5764454 |
Thin-film magnetic head with improved bonding characteristics and peeling resistance of insulating film to substrate
The object of the present invention is to improve the bonding characteristics and peeling resistance of the insulating film formed on the substrate of a thin-film magnetic head.An insulating film...
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5751522 |
Combined-type thin film magnetic head with inductive magnetic head having low-inductive core
A combined-type thin film magnetic head in which a reproducing head portion including a magnetoresistive device and an inductive magnetic head are laminated. A coil support portion made of the same...
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5615069 |
Thin-film transducer design for undershoot reduction
A thin-film head electromagnetic transducer has two pole pieces which define a gap. The surface of at least one of the pole pieces has a linear edge defining one side of the gap and has two linear...
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5245493 |
Magnetic information storage apparatus including magnetic head and method for making magnetic head
A magnetic head for reading from and/or writing to a magnetic information storage medium has a substrate on which a plurality of thin films are formed in sequence. The films provide a magnetic...
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5198948 |
Shielded servo heads with improved passive noise cancellation
A servo head in a disk file data storage system includes at least one shield which acts to block radiation emanating from a nearby data head and thus reduce noise induced in the servo head. The...
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5075280 |
Thin film magnetic head with improved flux concentration for high density recording/playback utilizing superconductors
Structures of magnetic heads having superconducting shields are disclosed for spatially directing magnetic recording/playback fields. One embodiment is a thin film magnetic head with a layer of...
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5065271 |
Thin film magnetic head apparatus and method of manufacturing the same
A small light-weight thin film magnetic head apparatus for a rigid disk or a floppy disc. The apparatus includes a magnetic head formed directly on a distal end of a suspension as a thin layer, one...
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5048175 |
Method for grounding pole structures in thin film magnetic heads
A thin magnetic read/write head is electrically grounded. The pole pieces or core of the thin film head is electrically connected to the base substrate of the thin film head. Electrical connection...
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5032944 |
Membrane type magnetic head
A membrane type magnetic head comprises, between a substrate and a protecting layer, first and second magnetic layers, an insulating gap layer at least partly interposed between the first and...
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4972286 |
Grounding pole structures in thin film mganetic heads
A thin film magnetic read/write head is electrically grounded. The pole pieces or core of the thin film head is electrically connected to the base substrate of the thin film head. Electrical...
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4766039 |
Magnetic head made from amorphous magnetic film
A magnetic head comprising a magnetic film in at least a part of a magnetic circuit, at least a part of the magnetic film being formed in contact with, or being exposed to, an oxide or oxygen at...
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4672496 |
Magnetic head having electromechanical transducer disposed at one end thereof
A thin magnetic film is deposited over a nonmagnetic or piezoelectric substrate. When a shock wave is propagated through this substrate from its one end to the other end, the permeability of the...
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3765083 |
METHOD OF MAKING A HEAD USING A TAPE GAP
A method for producing magnetic heads and magnetic heads whereby a non-magnetic rectilinear tape is stretched tautly in a slit of a non-magnetic base body also having recessed portions on both...
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3761641 |
MAGNETIC HEAD WITH DEMOUNTABLE FACE PART ASSEMBLY
The fabrication of a multi-track magnetic head assembly is disclosed wherein the assembly is initially formed in two distinct parts, a core housing part carrying a plurality of magnetic core...
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