Matches 1 - 43 out of 43
Match Document Document Title
6947246 Large protrusion recording head for controlled magnetic spacing recording/reading  
A magnetic head structure having enhanced protrusion and having a first pole structure, a second pole structure forming a yoke with the fist pole, a coil structure disposed in the yoke, and a layer...
6795272 Thin film magnetic head and magnetic storage apparatus  
A thin film magnetic head includes a lower magnetic pole, an upper magnetic pole provided so as to face the lower magnetic pole, and a magnetic gap layer provided between the lower magnetic pole...
RE38585 Thin film magnetic head and magnetic disk apparatus using the same  
A thin film magnetic head which can suppress magnetic saturation at opposite ends of width of a narrow track width to reduce the amount of recording side-fringing onto a recording medium and which...
6781790 Thin film magnetic head having a write gap layer  
A write gap layer 29 is formed such that a first magnetic layer 28 constituting a bottom pole chip and a bottom pole is covered with the write gap layer, a thin film coil 30 is formed in a...
6757134 High density thin film inductive head structure having a planarized coil insulation structure including hard baked photoresist and a filler material  
An improved design for a high density thin film inductive write head assembly is provided. A pedestal and back flux closure of ferromagnetic material are formed on opposite ends of a planarized...
6563669 Inverted write head with high-precision track width definition  
A method of fabricating a thin film magnetic transducer and the resulting transducer structure is disclosed. The method starts with the formation of a bottom pole having an upper portion and a...
6557242 Method of making a write head with self-aligned pedestal shaped pole tips that are separated by a zero throat height defining layer  
A merged magnetic head has a top first pole tip layer and a bottom second pole tip layer which are located entirely between an air bearing surface and a coil layer. A write gap layer separates the...
6538844 Method of fabricating a magnetic head by focused ion beam etching  
In a composite magnetic head comprising a magnetoresistive read head including a magnetic thin film having a magnetoresistive effect and soft magnetic members interposing the soft magnetic film...
6477007 Planar writer for merged GMR recording head  
A magnetic recording head having an air bearing surface comprises a writer having a substantially planar single piece top pole, a shared pole and a conductive coil. The top pole and shared pole are...
6456460 Track width definition by patterning of shared pole for integrated thin film/magnetoresistive head  
A read while write dual bump tape head for increasing allowable linear and areal bit density comprises first and second thin-film inductive write heads. The first thin film, inductive write head...
6288871 Thin film magnetic head and magnetic disk apparatus using the same  
A thin film magnetic head which can suppress magnetic saturation at opposite ends of width of a narrow track width to reduce the amount of recording side-fringing onto a recording medium and which...
6278579 Dual-element thin-film magnetic head including a composite lower core  
An inductive thin-film magnetic head with small flucuations of the reproduction output and noises for reproduction is disclosed. The forward end of each of a lower an upper magnetic and an upper...
6278578 Narrow track thin film head having a focused ion beam etched air bearing surface  
In a composite magnetic head comprising a magnetoresistive read head including a magnetic thin film having a magnetoresistive effect and soft magnetic members interposing the soft magnetic film...
6158107 Inverted merged MR head with plated notched first pole tip and self-aligned second pole tip  
A method makes an inverted merged MR head with a second pole tip which is self-aligned with a top first pole tip. After forming a bottom first pole tip layer a top first pole tip is frame plated...
6130809 Write head before read head constructed merged magnetic head with track width and zero throat height defined by first pole tip  
The present invention provides a merged magnetic head and method of making wherein a write portion of the magnetic head is constructed before the read head portion and the first pole tip of the...
6130805 Thin film magnetic head having upper pole chip formed over insulating layer  
On a first magnetic layer 27, is formed a ring-shaped insulating layer 28 whose air bearing surface side edge defines a reference position for a throat height, and after forming a write gap layer...
6122144 Contoured pole tip structures for minimizing side track erasure  
A write head is provided that has an "I" shaped pole tip structure. Flux leakage between bottom corners of a top horizontal component to a bottom horizontal component of the "I" shaped pole tip...
6111723 Narrow track thin film magnetic head suitable for high density recording and reproducing operations and fabrication method thereof wherein an air bearing surface has at least one groove containing a non-magnetic electrically conductive layer  
In a composite magnetic head comprising a magnetoresistive read head including a magnetic thin film having a magnetoresistive effect and soft magnetic members interposing the soft magnetic film...
6091582 Thin film magnetic recording head with very narrow track width performing high density recording at high driving frequency  
A thin film magnetic head is providing for recording with less blur having a high recording magnetic field, for use in a recording/reproduction separation type magnetic head and a magnetic...
6069775 Inverted merged MR head with precise track width  
A method makes an inverted merged MR head with a second pole tip layer which is self-aligned with a top first pole tip layer. After forming a bottom first pole tip layer, which is relatively thin...
5949625 Combination read/write thin film magnetic head with slant surfaces extending from lower core layer prominence  
A combination read/write thin film magnetic head includes an upper-core layer and a lower-core layer sandwiching a gap layer for writing data on a recording medium. The head also includes a...
5910871 Magnetic head having track width specified by grooves formed with projection ion beam  
The track width of a magnetic head is specified by the interval between a pair of grooves in the slider surface that are formed by a projection ion beam. Specifically, the grooves are processed by...
5894389 Thin-film Magnetic head having a narrow core width and process for its production  
A recess with a slanted wall is provided on a substrate, a magnetic yoke layer is formed so that the end of the magnetic yoke layer covers the slanted wall, and the recess is filled with a filling...
5880915 Crack resistant magnetic write head  
The reconfiguration of a magnetic write head minimizes cracking at the ABS. This is accomplished by selectively reconfiguring the front edge of the insulation layer that defines the zero throat...
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...
5726841 Thin film magnetic head with trimmed pole tips etched by focused ion beam for undershoot reduction  
An air bearing magnetic head is formed with a trimmed head pole tip that includes first and second poles having first and second surfaces respectively, which are coplanar with the air bearing...
5666250 Thin film magnetic heads with thin nickel underlayers  
A thin film head (12) and a method for fabricating the same comprises depositing a first nickel seed layer (37) on a substrate (25), forming a bottom portion (16) of a magnetic core (13) on the...
5652687 Planarized thin film magnetic write head with submicron trackwidth  
A thin film magnetic write head is provided with a notch structure located on top of one of two pole layers. The notch structure is a generally U-shaped thin film layer which forms a trench inside...
5581429 Thin-film magnetic head having improved magnetic pole structure  
The thin-film magnetic head comprises a gap layer, coil layer, insulating layer, and top magnetic pole layer stacked in sequence on the bottom magnetic pole layer, and a magnetic gap formed at the...
5255142 Thin film magnetic head with narrow yoke  
A thin film magnetic head is fabricated with a yoke structure, including P1 and P2 magnetic layers, having a width in the range of about 5 to 58 microns, preferably about 30 microns. The very...
5187628 Thin film magnetic head having magnetic anisotropy with in-plane and perpendicular components  
A magnetic head of the invention comprises a substrate, upper and lower magnetic films forming a magnetic circuit on the substrate, the magnetic circuit having a narrow portion in width and forming...
5157570 Magnetic pole configuration for high density thin film recording head  
A thin film magnetic recording head for high-density recording applications. The head includes a pole formed from at least two ferromagnetic material layers with one layer having high anisotropy (H...
5134535 Architecture for a thin-film magnetic recording head  
A thin-film head architecture is provided that incorporates an asymmetrical arrangement of poles along a defined area of the head extending from the pole tips to a flux via in the yoke region. The...
5089334 Flux spreading thin film magnetic devices  
A method of flux conduction comprising providing a structure with anisotropy not purely in the transverse in-plane direction such that flux spreading into the transverse in-plane direction can...
5085935 Flux spreading thin film magnetic devices  
One aspect of the invention is a method of flux conduction comprising providing a structure with anisotropy not purely in the transverse in-plane direction such that flux spreading into the...
4900650 Method of producing a pole piece with improved magnetic domain structure  
The mask through which the pole piece is deposited by through mask plating has a yoke region, a narrower pole tip region and a bulb region adjacent the pole tip region. The bulb region results in...
4861398 Method for making a thin film magnetic head  
DC bias currents are applied to a conducting wire of a thin film magnetic head to be inspected. When the DC bias currents (I 0 , I 1 , I 2 ) are supplied to the conducting wire, the impedances (Z 0...
4780781 Thin film magnetic head having magnetic film of Co-Ni-Fe alloy  
A thin film magnetic head comprising a lower magnetic film, an upper magnetic film which is formed over the lower magnetic film and in which one end is come into contact with one end of the lower...
4764834 Thin film magnetic transducer having a separate magnetically conductive layer  
A thin film transducer having a substrate, a first and second pole piece formed of a selected magnetic material and terminating in a gap, a coil positioned between the first and second pole pieces...
4458280 Servo writing transducer design and writing method  
A servo writing transducer is shown having transverse side surfaces of the pole pieces adjoining the gap formed to optimize compression of the fringe field at one transverse side to reduce the dead...
4386383 Magnetic transducer comprising a gap of variable larger dimension for reading and writing data present on a magnetic carrier  
Transducer intended for read/write functions on a magnetic data carrier wherein the data is contained within a plurality of tracks. The transducer includes a magnetic circuit formed by two pole...
4380784 Magnetic transducer for reading and/or recording of data contained on a magnetic carrier  
Transducer intended for read and/or write functions on a magnetic data carrier wherein the data is contained within a plurality of tracks. The transducer includes a magnetic circuit formed by two...
4190872 Thin film inductive transducer  
This thin film inductive transducer comprises a yoke structure consisting of a pole tip region which joins a back region. To maximize resolution during reading of magnetic transitions from a moving...
Matches 1 - 43 out of 43