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Match Document Document Title
7388732 Perpendicular recording magnetic head with a write shield megnetically coupled to a first pole piece  
A perpendicular recording write head has ferromagnetic first and second pole pieces which are connected at a back gap and an insulation stack with a write coil layer embedded therein is located...
7382579 Magnetic head structure  
A magnetic head structure capable of reducing the quantity of protrusion of a portion of a floating surface, at which a coil is located, toward a disk has been disclosed. The head comprises a coil ...
7379269 Write element with reduced yoke length for ultra-high density writing  
A head including a write element for writing data to a magnetic media, and methods for its production are provided. A write element of the invention includes one or more of a recessed first pole, a...
7375926 Inductive writer design using a soft magnetic pedestal having a high magnetic saturation layer  
A magnetic head for writing information on a relatively-moving medium includes a first substantially flat soft magnetic pole layer and a second substantially flat pole layer with at least one coil...
7375925 Magnetic head for perpendicular magnetic recording and method of manufacturing same  
A pole layer incorporates: a first portion having an end face located in a medium facing surface; and a second portion having a thickness greater than that of the first portion. A surface of the...
7372667 Thin-film magnetic head, head gimbal assembly with thin-film magnetic head, head arm assembly with head gimbal assembly, magnetic disk drive apparatus with head gimbal assembly and manufacturing method of thin-film magnetic head  
A thin-film magnetic head comprising an inductive element including at least: a lower magnetic pole; a write gap layer; and an upper magnetic pole opposed to the lower magnetic pole through the...
7372666 Magnetic head with alternately laminated (110)-orientation-inducing non-magnetic underlayers, magnetic layers, and discontinuous insulating layers  
A magnetic head according to the present invention includes a write magnetic pole on which a magnetic film has been formed, and is characterized by the magnetic film being formed by alternately...
7372664 Techniques to reduce adjacent track erasure including a write pole with a tip having faces at angles  
Techniques for reducing adjacent track erasure include: a bucking coil having a lower number of turns than the write coil for bucking out a portion of the field induced by the write coil; a hybrid...
7365941 Optical recording head including an optical resonant cavity  
An optical recording head including a media heating device to write and read data to a heat sensitive optical media disk. The media heating device includes an optical energy resonant cavity that...
7363698 Process for creating a write head by forming a bump after the top pole is formed  
Methods for creating a write head by forming a bump after the top pole is formed are provided. In one embodiment, a bottom pole is created out of a first layer. A non-magnetic gap material is...
7359151 Magnetic head having writer with embedded write gap between wear-resistant pole tip layers  
A method of fabricating a magnetic writer includes depositing a wear-resistant bottom pole tip layer on a bottom pole; depositing a write gap layer on the bottom pole tip layer; and depositing a...
7359150 Self-aligned trimmed pole  
A trimmed upper pole piece for a magnetic write head is presented, said pole piece having a uniform width above and below a write gap layer and said pole piece being formed on a pedestal of uniform...
7356909 Method of forming a CPP magnetic recording head with a self-stabilizing vortex configuration  
A method is provided for forming a CPP MTJ or GMR read sensor in which the free layer is self-stabilized by a magnetization in a circumferential vortex configuration. This magnetization permits the...
7349180 Magnetic head assembly that has an air bearing surface  
First, second and third pole tip components of a write head are formed with the second pole tip located between the first and third components and a write gap layer located between the first and...
7343666 Methods of making magnetic write heads with use of linewidth shrinkage techniques  
In one illustrative example, a method for use in making a magnetic write head includes the steps of forming a first pole piece layer of a first pole piece; forming a patterned resist over the first...
7331100 Process of manufacturing a seed/AFM combination for a CPP GMR device  
An improved seed/AFM structure is formed by first depositing a layer of tantalum on the lower shield. A NiCr layer is then deposited on the Ta followed by a layer of IrMn. The latter functions...
7330324 Magnetic disk drive having a function for using a thermal protrusion amount for flying height management and an inspection device having such a function  
A write head's material having a great thermal expansion coefficient expands due to Joule heat resulting from a write current and a temperature rise dependent on high-frequency core loss, thereby...
7327532 Bottom pole structure with back-side steps  
To generate a high data transfer rate from a magnetic write head, a faster flux rise time is needed. This often brings about severe excess saturation of the head and, as a result, adjacent track...
7325296 Method of fabricating a magnetic head  
A magnetic head having a magnetic shield and/or pole layer that is fabricated as a plurality of laminated layers, in which each layer includes a sublayer thickness of Fe(N) and a sublayer thickness...
7322096 Method for fabricating magnetic write heads  
A magnetic write head and method for bulk fabrication of the same are provided. A trench is formed in a nonmagnetic substrate. A first magnetically permeable layer is deposited in the trench of the...
7321480 Thin-film magnetic head having magnetic layers of different thicknesses and fabrication method for same  
A thin-film magnetic head includes a lower magnetic layer, an upper magnetic layer, a recording gap layer, and a thin-film coil. The lower magnetic layer has a first magnetic pole tip layer, and a...
7320174 Methods for creating ground paths for ILS  
Methods for creating a ground path between a stainless steel suspension and a copper trace layer in an integrated lead assembly of a disk drive suspension. The invention prevents electrostatic...
7304822 Magnetic head with multilayer film including metal magnetic films and non-magnetic films and magnetic recording/reproducing device  
In a magnetic head, a multilayer film is disposed, the multilayer film including metal magnetic films and non-magnetic films that are alternately laminated, and a boundary between the multilayer...
7293344 Process of making CD uniformity in high track density recording head  
A process for achieving tighter reader and writer track width control is disclosed. The write gap layer is used as the plating seed on which the upper pole is electro-formed. This allows the write...
7290324 Method for fabricating a magnetic head including a media heating element  
A magnetic head including a media heating device. Following the fabrication of the heating device, a sacrificial layer of material is deposited to protect the heating device during subsequent...
7267757 Magnetic head utilizing a CoNiFe alloy with 60-80 weight percent Fe and method for production therefor  
At least one of lower and upper magnetic cores is composed of magnetic films each of which contains two or more elements of Co, Ni, and Fe, which are formed by electroplating in a plating bath with...
7217666 Reactive ion milling/RIE assisted CMP  
A method for forming a high aspect ratio magnetic structure in a magnetic write head using a combination of chemical mechanical polishing and reactive ion etching.
6995951 Method of planarizing substrate, magnetic head and manufacturing method of the same  
In order to have a remarkably planarized substrate easily, a glass thin film is predeposited on a surface of a non-magnetic substrate. The non-magnetic substrate is subjected to heat treatment...
6894868 Magnetic head  
A magnetic head having a sliding surface ( 120 ) on which a magnetic recording medium is slid, a magnetic gap g formed in the sliding surface for exchanging information signals with the magnetic...
6822828 Magnetic head  
The present invention discloses a magnetic head which allows smooth filling of a non-magnetic material such as glass, and can prevent bubbles from generating within the such non-magnetic material,...
6809900 Write head with magnetization controlled by spin-polarized electron current  
A write head for a disk drive includes a first layer of magnetic material having a fixed magnetization aligned in a first direction, a second layer of magnetic material having a changeable...
6801391 Magnetic head with ferrite between nonmagnetic portions and a nonmagnetic gap  
There is provided a magnetic head formed with a pair of magnetic core halves fitted to abut on each other having a nonmagnetic gap therebetween and having a slide contact plane for slide contact...
6675464 Method of manufacturing a magnetic head  
A method of manufacturing magnetic heads is provided in which a slider and a back yoke are joined to form a magnetic head main body. The main body is then fixedly bonded to a holding member that...
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...
6661606 Magnetic disk apparatus with magnetic head having upper and lower magnetic cores of an electroplated thin film  
A magnetic disk apparatus includes a magnetic disk for recording information and a magnetic head which has a reproducing head and a recording head. The reproducing head comprising a lower shield...
6657814 Transducing head for tape drive  
A transducing head ( 740 ) for a magnetic tape recorder comprises a first magnetic pole ( 744 ) and a second magnetic pole ( 742 ) positioned to form a gap therebetween. The first magnetic pole (...
6649286 FeCoNiN-based soft magnetic thin film composition  
Disclosed is a FeCoNiN-based soft magnetic thin film composition having the formula Fe x Co y Ni z N v , wherein x, y, z and v are expressed in at % and satisfy 41≦x≦55, 18≦y≦27,...
6647613 Method of making a magnetic write head and in-process head structures  
A batch fabrication technique is described that increases the manufacturing efficiency of servo write heads and also improves servo pattern definition for fine features, while reducing tape and...
6646820 Method for recording magnetic recording medium  
A master information carrier ( 2 ) with an arranged pattern formed of a ferromagnetic film in a shape corresponding to information signals is superposed on a magnetic recording medium ( 1 ) and the...
6631051 Magnetic head including a slider with a hole, a magnetic head core having a magnetic gap, and a winding wound around the magnetic head core  
A winding is wound directly on the magnetic head core formed of a single crystal of Mn—Zn ferrite. The diameter is 20-30 μm. A high-saturated magnetic flux density material (iron) having a...
6549369 Multilayer film core magnetic head with bonding glasses of differing thermal expansion coefficients  
A magnetic head includes a pair of magnetic core halves provided with at least metal magnetic films are combined together so that the metal magnetic thin films of one of the pair of magnetic core...
6498697 Method and system of magnetic recording and reproducing with ultra-high density  
Method and system of perpendicular magnetic recording and reproducing with ultra-high density for use in computer storage, audio, video recording euipment. Marks, as logical “1”-s are recorded...
6307708 Exchange coupling film having a plurality of local magnetic regions, magnetic sensor having the exchange coupling film, and magnetic head having the same  
An exchange coupling film, magnetic sensor having the exchange coupling film, and a magnetic head having the same. The exchange coupling film includes a ferromagnetic layer and an antiferromagnetic...
6297930 Magnetic head  
A cut out 23 is formed at the corner portion 22 which is formed between the second long side 8 22 and each of the first and second short sides 8 11 and 8 12 of the back yoke 5, in which the...
6288870 Self-aligned metal film core multi-channel recording head for tape drives  
A self-aligned multi-channel tape head structure has a non-magnetic ceramic substrate defining an interior longitudinal channel and a plurality of head regions. At least one head leg at each region...
6236537 Wear resistant magnetic write head  
A head design that reduces wear at the leading and trailing edges where the tape contacts the head while minimizing any adverse effects on the performance of the head. In one embodiment of the...
6226148 Magnetic head  
In a magnetic head, a second leg portion 10b with which a coil is not coupled is connected to a first long side 8 2 1 (outer-body 8). Since the sectional area (thickness) is made larger in...
6222701 Magnetic head with (411) plane single crystal ferrite medium facing surface and (122) plane gap surface  
A magnetic head having excellent abrasion characteristics and a high playback output. The magnetic head is made up of a pair of magnetic core halves each having a single crystal ferrite at a...
6219200 Thin film magnetic head with air bearing end face of magnetic film protruding beyond air bearing end face of substrate  
A thin-film magnetic head in which the end face of a magnetic film protrudes beyond a substrate within the air bearing surface of the magnetic head. The magnetic film being made of a material...
6183889 Magneto-impedance element, and magnetic head, thin film magnetic head, azimuth sensor and autocanceler using the same  
A magneto-impedance element, showing a change in impedance in response to an external magnetic field when an alternating current is applied, is composed of a glassy alloy. The glassy alloy is...
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