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7363699 Method for manufacturing a magnetic read sensor employing oblique etched underlayers for inducing uniaxial magnetic anisotropy in hard magnetic bias layers  
A magnetoresistive sensor having a hard bias layer with an engineered magnetic anisotropy in a direction substantially parallel with the medium facing surface. The hard bias layer may be...
7362543 Magnetoresistive/inductive write head assembly formed with seed layers having a uniform thickness  
The present invention presents a method for fabricating coil elements for magnetic write heads. A coil pattern is formed on a substrate using photolithographic techniques. The substrate is etched...
7319572 Thin film coil and method of forming the same, and thin film magnetic head and method of manufacturing the same  
Provided are a thin film coil formed at high densities, a method of forming a thin film coil, a thin film magnetic head which includes the thin film coil and thus enables ensuring stable recording...
7310202 Magnetic recording head with clad coil  
A magnetic write head for recording data having reduced erasure caused by a magnetic field is disclosed. The magnetic write head include a main pole and a conductive coil positioned adjacent the...
7304821 Magnetic head coil structure and method for manufacturing the same  
A Damascene process is provided for manufacturing a coil structure for a magnetic head. During the manufacturing process, an insulating layer is initially deposited after which a photoresist layer...
7268975 High data rate writer with low resistance coil and short yoke  
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...
7168156 Method of manufacturing a thin-film magnetic head  
A thin-film magnetic head comprises first and second magnetic pole groups, magnetically connected to each other, having respective magnetic pole parts opposing each other on a side of a...
6819527 Magnetic head with lower coil traces connected to integrally formed vertical interconnects and upper coil traces through plural insulating layer arrangement  
A magnetic head having a helical induction coil. The helical coil is fabricated around a magnetic pole yoke in a series of process steps that include a reactive ion etch (RIE) process step which is...
6700720 Ultrafast magnetization reversal  
A scheme for ultrafast magnetization reversal in an in-plane magnetized layer ( 3 ) is disclosed. For that, an external magnetic field {right arrow over (H)} ex is applied such that the...
6665136 Recording heads using magnetic fields generated locally from high current densities in a thin film wire  
A method of recording information bits in a magnetic storage medium, the method comprising positioning a first conductor adjacent to a magnetic recording medium, the conductor having a width and a...
6473258 Magnetic disk read/write circuit having core coils of opposite phase  
A magnetic disk read/write circuit comprises a core having a pair of coils wound such that signals supplied to the coils becomes opposite in phase and a read circuit having a first input terminal...
6262856 Magnetic information reproducing apparatus having power supply field cancellation facility  
A magnetic information reproducing apparatus includes a head which reads magnetic information from a magnetic recording medium, and an electric wire for supplying electric power from a power supply...
6115217 Multi-element read/write tape head with low feedthrough  
Read-while-write feedthrough is reduced in a tape deck having a multi-element read/write tape head. The tape deck includes write circuits for converting a substream of a data stream into an...
5883750 Method and system for the magnetic recording of information elements and information medium by providing current correction for cross-talk magnetic flux  
A method and system of magnetic recording of information elements on several parallel tracks whereby the recording of information elements on a track is accomplished by inducing a magnetic field...
5640291 Magnetic head  
A magnetic head in which a pair of magnetic core halves each having a winding slot for placing a coil are abutted and unified to each other by thin magnetic metal films interposed in-between, and...
5629821 Magnetic head  
A pair of parallel frame members 30 and 31 are formed in the inner bobbin faces of recording/reproducing and erasing coil assemblies 3, 4 on the opposite sides and spaced equidistant from a core...
5594608 Magnetic tape head with a high saturation flux density magnetic pole interposed between a nonmagnetic closure section and a magnetic ferrite substrate  
A high efficiency write element for use with a multiple element, multiple track longitudinal magnetic tape head. The write element includes a recess formed in the surface of the substrate in which...
5461528 Self bucking servo transducer  
A servo head in a disc file data storage system includes a servo transducer and a coil which are connected so that noise induced by a nearby writing data head cancels. The servo transducer, mounted...
5245494 Write-read magnetic recording head  
A write-read magnetic head for write-read digital recording machines includes a write magnetic head and a read magnetic head disposed in closely spaced apart relation. Each head includes a shield...
5239433 Magnetic head device  
A magnetic head apparatus arranged such that, for preventing a crosstalk between a plurality of magnetic heads, a crosstalk preventing element is coupled through a switching element in parallel to...
5210669 Methods of improved servo head passive noise cancellation by placement and orientation of multiple servo transducers  
A servo head in a disk file data storage system includes two servo transducers which are connected so that noise induced by a nearby writing data head will cancel. The two servo transducers are...
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...
5195003 Magnetic head device including crosstalk prevention circuit  
Crosstalk prevention means or short-circuit means is connected in parallel to an erasing coil for erasing part of data prior to recording the data by a read/write coil, whereby a cancelling...
5122916 Electromagnetic head having interference compensation circuitry  
In a magnetic sensing head with reduced crossfeed interference circuitry, the winding of each half of a magnetic core of the head is wound in the same direction as the other about the core. Each...
4996621 Superconducting device for reading information from a magnetic recording medium  
Device is provided for reading information from a magnetic recording medium, comprising a SQUID (15), a magnetic yoke formed from two flux guides (3 and 5) and a face (13) for magnetic flux...
4984117 Device with read head for magnetically recorded information  
A device with a read head (16) for magnetically recorded information in electronic data processing plants, in particular in document processing systems, is subject to disturbances by the document...
4977666 Method of forming a coil on a core  
In a method for forming a coil and a coil formed by the method, a first wire having a thick insulating coating is inserted into a hole of a workpiece and wound around a peripheral surface of the...
4965681 Magnetic recording apparatus of rotary magnetic type having cross-talk cancelling function  
A magnetic recording apparatus of the rotary head type has a cross-talk cancelling function. A plurality of rotary magnetic heads are used to record signals on a magnetic recording medium and a...
4945439 Sync crosstalk cancelling circuit  
A sync crosstalk cancelling circuit features a record/playback head, capable of sync recording, molded in one piece with a record head section and playback head section and another record/playback...
4876790 Magnetic information recording and/or reading head with increased wear-resistant properties and a method for manufacturing the same  
A magnetic head for information recording and/or reading which comprises a pair of half poles (10,11) each consisting of a plurality of soft iron sheets (12) having predetermined profiles. The half...
4860140 Magnetic head closure having ferrite substrate and closure and conductive thin film coil deposited in recess of substantially same shape in ferrite substrate  
The magnetic head according to the present invention has a ferrite substrate and closure. The ferrite substrate has formed therein a first recess in which a conductive coil is to be deposited,...
4860132 Rotatable head assembly with offset sub-head gaps  
A rotatable magnetic head assembly for use in a magnetic tape recording/play-back device of the helical scanning type, the assembly comprising two diametrically oppositely located magnetic...
4827360 Rotary transformer with winding to cancel crosstalk  
A magnetic recording/reproducing apparatus for magnetically recording and reproducing information on and from a magnetic tape. The apparatus includes a rotary drum adapted to be rotatable about its...
4821403 Method for making a flat magnetic structure for read/write magnetic heads  
A method of making a flat magnetic structure having coils thereon, said structure including magnetic read/write heads using a flat substrate that has at least one side made of a magnetic material,...
4809112 Back core holding clip disposed on interior side of back core  
A back core fixing structure of magnetic head is provided, in which a back core is fixed to magnetic cores in such a manner that a holding member provided with a resilient tongue segment having...
4796132 Thin film magnetic head having Au ultrasonic connection structure  
Conductor film terminals of a thin film magnetic head are composed of an Au film while lead terminals of a flexible printed circuit board are covered with an Au layer, so that both of these...
4758917 Magnetic transducer assembly with improved crosstalk reduction  
A magnetic shield is provided for stray flux reduction from a transducer into a laterally disposed adjacent transducer. The shield substantially covers the transducing winding and extends in close...
4750071 Magnetic head assembly including a pair of heads disposed in the vicinity of each other  
A magnetic head comprises a first magnetic core having a first gap on an exposed surface side; a second magnetic core having a second gap on an exposed surface side forming an identical surface...
4703381 Magnetic head with a film coil  
A magnetic head comprises a core assembly including a generally U-shaped first core half and a second core half, and a coil assembly made of a film coil. The coil assembly has a through-hole at its...
4636900 Arrangement for the elimination of crosstalk between data and servo heads  
An arm assembly for a disk drive having a read/write head and a servo head on the same Winchester arm assembly is described. To eliminate the possibility of crosstalk from the data head during the...
4599668 Inductively-coupled, thin-film M-R head  
The invention teaches that if a "shorted" electrically conductive turn--deposited on a magnetic substrate--is employed to sense recorded signal flux, then the underlying substrate will efficiently...
4533967 Multiple leg multichannel magnetic transducer structure and method of manufacturing  
In the preferred embodiment of the high density multichannel transducer each channel has two assembled corresponding magnetic core portions, each portion having an intermediate and a rear leg...
4460934 Magnetic head with full and partial coils for azimuth information  
This invention relates to a magnetic head for providing azimuth information therefrom relative to a signal recorded on a magnetic tape. The magnetic head of the invention has first and second coils...
4429337 Magnetic head unit having thermally dissipating cover plate  
An integrated magnetic head unit includes a housing and a substrate provided in the housing. The substrate supports a plurality of electromagnetic transducing elements including respective...
4422118 Integrated magnetic transducer  
A magnetic transducer for reading magnetic information from a magnetic support such as a disc or tape which moves before it, comprises a magnetic circuit formed of two thin layer polar pieces...
4393428 Magnetic head  
In a magnetic head, a core half having a coil wound thereon and a core half having no coil wound thereon are disposed in abutting relationship with each other to form a magnetic gap. A projected...
4375657 Magnetic head assembly  
A magnetic head assembly useful as a write head is formed with a ferrite substrate, having a recessed channel on one surface in which a conductive coil is deposited, and a ferrite closure having a...
4369476 Multi-track recording head assembly with electromagnetic cross-talk neutralization  
A high track density recording head assembly which eliminates cross-talk in high track density recording systems by positioning very thin neutralization heads between each pair of adjacent...
4342059 Electronic gain and noise control for recording of analog information  
Audio signals with opposite relative phases are recorded on two tracks. A dual track head reproduces the signals from the two tracks and introduces another phase reversal of one signal relative to...
4331992 Method and apparatus for eliminating crosstalk in magnetic tape recorders  
In order to eliminate crosstalk between adjacent playback and recording heads in a multi-track, multi-head magnetic tape recorder or playback apparatus, the invention provides for tapping off part...
Matches 1 - 50 out of 202 1 2 3 4 5 >