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7382578 Thin film magnetic head, method of manufacturing the same and magnetic recording apparatus  
Provided is a method of manufacturing a thin film magnetic head capable of manufacturing a thin film magnetic head with as high performance as possible. A magnetic pole layer is formed so as to...
7382573 Magnetic write head having a magnetically anisotropic write pole  
A magnetic write head for magnetic data recording. The magnetic write head has a write pole with a magnetic anisotropy induced by an angled, directional ion milling of a seed layer. The magnetic...
7369360 Perpendicular recording head having controlled permeability and saturation moment  
A method and apparatus having magnetic properties. The apparatus includes a main pole and a return pole spaced apart from the main pole. The return includes at least one multilayer block having a...
7289297 Multilayered ferromagnetic laminate having alternating cobalt alloy and iron-nitrogen alloy films for use with magnetic heads  
A multilayered ferromagnetic laminate includes a first magnetic film having a cobalt alloy and a second magnetic film having an iron-nitrogen alloy. The films are deposited upon one another and...
7280314 Lower saturation field structure for perpendicular AFC pole  
A magnetic write head for perpendicular magnetic recording having a laminated write pole with improved low saturation field.
7265942 Inductive magnetic head with non-magnetic seed layer gap structure and method for the fabrication thereof  
A magnetic head including first and a second magnetic poles with a write gap layer disposed therebetween. In a first embodiment the write gap layer includes a non-magnetic, non-conductive first...
7248437 Perpendicular magnetic recording head and method for manufacturing the same  
In a non-magnetic material layer, a concave portion is formed above a groove G. In addition, an auxiliary magnetic pole layer is formed having a convex portion which extends in the direction toward...
7248433 Magnetic head with stitched top pole layer and single layer coil or solenoidal coil  
A magnetic head is disclosed that has first and second substantially flat soft magnetic pole layers that are magnetically coupled together in a backgap region that is removed from the medium-facing...
7237321 Method for fabricating a CPP magnetic transducer using CMP-assisted lift-off and a CMP-resistant metal layer  
A method is described which uses a CMP resistant metal layer to replace the upper dielectric layer in the track width definition phase of a TMR or CPP spin valve magnetic head. The metal which is...
7227720 Magnetic head for perpendicular magnetic recording and method of manufacturing same  
A pole layer has an end that is located in a medium facing surface and that incorporates a first side closer to a gap layer and a second side opposite to the first side. A shield layer has an end...
7219414 Method of manufacturing magnetic head for perpendicular magnetic recording  
A main pole layer of a magnetic head includes a first portion disposed at a distance from a medium facing surface, and a second portion that is smaller in thickness than the first portion and...
7212380 Magnetic write head with recessed overcoat  
A magnetoresistive read/write head having a first layer of alumina and a second layer of silicon dioxide overlaying a P3 layer of the head. In a preferred embodiment, the silicon dioxide layer is...
7193816 Magnetic head for perpendicular magnetic recording and method of manufacturing same  
A magnetic head comprises a pole layer, a gap layer, a shield layer, a nonmagnetic layer, and a coil. The shield layer incorporates: a first layer disposed on the gap layer; a second layer disposed...
7193815 Shielded pole magnetic head for perpendicular recording  
A read/write head for use in a perpendicular magnetic recording head in a data storage system. The read/write head includes a write section that is comprised of a first pole layer, a second pole...
7185415 Method for forming a magnetic head having a flux shaping layer  
A method for fabricating a magnetic head includes forming a first pole and a flux shaping layer in spaced relation to the first pole. A nonmagnetic layer is formed adjacent the flux shaping layer...
7181829 Method of manufacturing a perpendicular magnetic recording head  
A main magnetic pole layer is formed on an insulating layer flattened into a high-flatness surface, and a yoke layer having a large film thickness is formed under the main magnetic pole layer...
7181827 Method of forming magnetic layer pattern  
Provided is a method of manufacturing a thin film magnetic head capable of achieving compatibility between preventing the occurrence of side erasing and securing overwrite characteristics. When a...
7180705 Thin film magnetic head capable of reducing expansion and bending of a recording pattern, method of manufacturing the same and magnetic recording apparatus  
Provided is a thin film magnetic head capable of reducing expansion and bending of a recording pattern resulting from a skew so as to improve recording performance. A main pole layer comprises a...
7177117 Magnetically soft, high saturation magnetization laminates of iron-cobalt-nitrogen and iron-nickel for magnetic head pole layers  
A magnetic head comprising a first layer containing NiFe having a concentration of iron that is at least thirty percent and not more than seventy percent; a second layer that adjoins the first...
7174623 Method of providing protection to the pole piece of a magnetic head during its manufacture with use of a selectively etchable material  
A method of making a magnetic head involves providing a partially constructed magnetic head which has a top surface formed by a front P 2 pole tip, a back gap P 2 pedestal, and insulator...
7170712 Magnetic head including a gap-depth defining layer on protruding layer and method for manufacturing the same  
A recording thin-film magnetic head includes a gap-depth defining layer, lower magnetic pole layers and gap layers on the front and rear sides of the gap-depth defining layer, and an upper magnetic...
7159302 Method for manufacturing a perpendicular write head  
A method for manufacturing a write head having a small write pole tip that emits magnetic flux sufficient for effective perpendicular recording. The method creates a leading edge taper (LET)...
7139153 Magnetic pole tip for perpendicular magnetic recording  
A method for forming a magnetic structure, such as a pole tip, includes forming a pole tip layer of magnetic material. A layer of polyimide precursor material is added above the pole tip layer and...
7119988 Perpendicular magnetic head having modified shaping layer for direct plating of magnetic pole piece  
A magnetic head of the present invention includes a first magnetic pole that is exposed at the air bearing surface of the magnetic head and a second magnetic pole shaping layer that is not exposed...
7064924 Thin laminated single pole perpendicular write head  
Single write poles tend to large shape anisotropy which results in a very large remnant field when not actually writing. This has now been eliminated by giving the write pole the form of a three...
7057853 Magnetic head  
The disclosed invention provides a magnetic head of high stability in which “erase after write” is prevented. Here is provided a magnetic head comprising a thin-film magnetic head for...
7038882 Low moment-high moment write pole with non-magnetic layer for establishing a magnetic path discontinuity between layers of the write pole  
A write pole for a magnetic recording head, such as a perpendicular magnetic recording head, includes a first magnetic layer comprising a material having a first saturation magnetic moment and a...
7009812 Magnetic transducer for perpendicular magnetic recording with single pole write head with trailing shield  
The invention is a magnetic transducer with separated read and write heads for perpendicular recording. The write head has a trailing shield that extends from the return pole piece toward the main...
6965494 Magnetic recording head having a first pole for generating an easy axis field and an auxiliary pole for generating a first auxiliary hard axis field that opposes an initial hard axis field  
A magnetic recording head includes a first pole having multiple magnetic layers separated by multiple gap layers. The multiple magnetic layers make up a write pole which produces a first hard axis...
6906894 Write head having a recessed, magnetic adjunct pole formed atop a main pole, and method of making the same  
A read/write head and method of making the same are used in a data storage system, such as a disk drive, for perpendicular magnetic recording of data. The head employs a two-layer pole design with...
6903900 Perpendicular magnetic recording head including nonmagnetic layer overlaying main pole layer  
A perpendicular magnetic recording head includes: an auxiliary pole layer; a main pole layer; a coil layer for providing a recording magnetic field to the auxiliary pole layer and the main pole...
6901651 Method of manufacturing thin-film magnetic head  
A manufacturing method in which a second magnetic layer of a thin-film magnetic head includes the steps of: forming a pole portion layer; forming a protective layer so as to cover a part of the...
6898053 Perpendicular recording head with trackwidth defined by plating thickness  
A perpendicular recording head for use with magnetic recording media includes an unusually thin main pole. The main pole is made by depositing magnetically permeable material on a nonmagnetic...
6891697 Magnetic heads for perpendicular recording and magnetic recording disk apparatus using the same  
A magnetic head having at least a main pole having a profile on a magnetic head air bearing surface composed of a first portion having a length in a cross-track direction which continuously...
6862798 Method of making a narrow pole tip by ion beam deposition  
A method of making a magnetic head assembly wherein the magnetic head assembly has a write head with a pole tip includes the steps of forming a shaping layer on an underlying layer wherein the...
6822829 Perpendicular magnetic recording head with a multilayered main write pole  
A perpendicular magnetic recording head includes a multilayered main write pole. The main write pole includes a first layer of material, a second layer of material, and an interlayer positioned...
6813116 Magnetic heads for perpendicular recording and magnetic recording disk apparatus using the same  
A single-pole type magnetic head for perpendicular recording which reduces the amount of side writing even in the presence of a yaw angle and prevents the effective track width from decreasing, and...
6813115 Perpendicular magnetic recording head with improved write field gradient  
A single pole magnetic recording head is provided according to the present invention for perpendicular magnetic recording on a recording medium. The magnetic recording head includes a main magnetic...
6809901 Low moment material for magnetic recording head write pole  
A write pole for a magnetic recording head, such as a perpendicular magnetic recording head, includes a first layer of material adjacent a second layer of material. In one embodiment, the first...
6807027 Ruthenium as non-magnetic seedlayer for electrodeposition  
A perpendicular write head includes a main pole, a return pole, and conductive coils. The main pole includes a seedlayer and a magnetic layer that is plated upon the seedlayer. The seedlayer is...
6795273 Magnetic recording head with high saturation magnetization write pole having alternating interface-defining Fe/Co layers  
A magnetic recording head includes a write pole having alternating layers of Fe and Co and a return pole magnetically coupled to the write pole. The layers of Fe may have a thickness from about 1.0...
6791796 Perpendicular writer with laminated main pole  
The present invention is a perpendicular writer having an air-bearing surface, a main pole with an extension, and return pole, and a back gap closure intermediate the main pole extension and the...
6791793 Perpendicular recording write head having a recessed magnetic adjunct pole and method of making the same  
A read/write head and method of making the same, are used in a data storage system, such as a disk drive, for perpendicular magnetic recording of data. The head employs a two-layer pole design with...
6771464 Perpendicular magnetic recording head with a laminated main write pole  
A perpendicular magnetic recording head includes a laminated main write pole and a return pole magnetically coupled to the main write pole. The main write pole includes a first magnetic layer...
6721131 Composite write pole for a magnetic recording head  
A main write pole for a perpendicular recording head for use with magnetic recording media includes a main body portion of a material with a low magnetic moments, a trailing edge of a material...
6693768 Perpendicular magnetic recording head having a flux focusing main pole  
A perpendicular recording head for use with magnetic storage media includes a flux focusing main pole. The main pole includes a layer of material having a high magnetic moment, and a second layer...
6639754 Perpendicular magnetic recording head and perpendicular magnetic recording apparatus  
A perpendicular magnetic recording apparatus includes a magnetic disk having a perpendicular double-layer film and a perpendicular magnetic recording head having a leading pole positioned forward...
6538843 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...
6504675 Perpendicular magnetic recording heads with write pole shaped to reduce skew effects during writing  
A writer for perpendicular recording on bilayer media with suppressed skew angle effect on the width of the recorded track is disclosed. The writer has a wide and flat trailing edge and a narrow...
6320725 Hard disk drive having ring head with predominantly perpendicular media fields  
An information storage system having a ring head sliding on a rigid magnetic storage disk in such close proximity that the magnetic field felt by the media layer or layers of the disk has a larger...
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