Matches 1 - 44 out of 44
Match Document Document Title
7333296 Magnetic head for perpendicular magnetic recording including pole-layer-encasing layer that opens in the top surface thereof and nonmagnetic conductive layer disposed on the top surface of the pole-layer-encasing layer  
A pole layer is disposed in a groove of a pole-layer-encasing layer made of a nonmagnetic material with a nonmagnetic film disposed between the encasing layer and the pole layer. A polishing...
7330335 Magnetic recording medium, magnetic recording apparatus and magnetic recording method  
A magnetic recording medium capable of alleviating thermal fluctuation and improving the recording density includes a functional layer ( 12 ) containing a magnetic material, and a recording layer (...
7327533 Process and structure for a perpendicular writer having an exchange coupling discontinuity  
The non-zero remanence state that is associated with a single pole writer often results in self-pole-erasure (SPE). This problem has been overcome by inserting a very thin exchange de-coupling...
7322095 Process of manufacturing a four-sided shield structure for a perpendicular write head  
A process for reducing fringe field effects of a main write pole by shielding it on all four sides, with the regular return pole also serving as the leading edge shield, is described. The main pole...
7296339 Method for manufacturing a perpendicular magnetic recording head  
A method and system for manufacturing a perpendicular magnetic recording head is disclosed. The method and system include providing a chemical mechanical planarization (CMP) uniformity structure...
7289293 Perpendicular recording magnetic disk apparatus  
A perpendicular recording magnetic disk apparatus has a perpendicular two-layered medium including a pinning layer, a soft underlayer and a perpendicular recording layer, and a write head including...
7253992 Single-pole recording head having trapezoidal main pole and bevel angle promotion layer and methods of fabricating the same  
A single-pole perpendicular magnetic recording head contains a bevel angle promotion layer that facilitates the fabrication of the bevel angle in a trapezoidal main pole. The bevel angle promotion...
7251103 Perpendicular pole having and adjacent non-magnetic CMP resistant structure  
A magnetic structure, such as a pole tip, and method for forming the same includes forming a pole tip layer of magnetic material. A layer of polyimide precursor material is added above the pole tip...
7248434 Planarized perpendicular pole tip system and method for manufacturing the same  
A method for manufacturing a pole tip structure for a magnetic head is provided. An etch stop layer is initially deposited after which a transfer layer is deposited. Further deposited is at least...
7215502 Magnetic recording and reproducing apparatus with trapeziodal write pole tip to avoid overwriting adjacent tracks  
A magnetic recording and reproducing apparatus includes a magnetic head having a main magnetic pole, a magnetic recording medium of a discrete type having a predetermined convex-concave structure...
7196871 Head for perpendicular recording with a floating trailing shield  
Heads for perpendicular recording using a floating-trailing shield as part of the magnetic circuit for writing magnetic domains in the recording media are described. The floating-trailing shield is...
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...
7088548 Perpendicular magnetic recording system  
To make a soft magnetic underlayer of a double layered perpendicular magnetic recording medium thinner than heretofore while avoiding saturation. Assuming that T b1 is the thickness of the soft...
7054106 Magnetic head and magnetic storage apparatus  
Disclosed herein is a magnetic head for perpendicular recording in which the main magnetic pole has reduced remanent magnetization and is less liable to cause erasure after recording. These...
7054105 Magnetic recording head for perpendicular recording and including a portion protruding toward a mail pole and magnetic disc storage apparatus mounting the magnetic head  
A magnetic field distribution of a recording head is made linear so that a curvature of the magnetic-transition pattern in recording bit cells can be corrected. In a SPT head having a main pole 1 ...
7002775 Head for perpendicular magnetic recording with a shield structure connected to the return pole piece  
An embodiment of the invention is a head for perpendicular recording that has a trailing shield and side shields that are connected to the return pole piece by two studs of ferromagnetic material....
6888700 Perpendicular magnetic recording apparatus for improved playback resolution having flux generating elements proximate the read element  
A perpendicular magnetic recording head for improving resolution includes a read element and a magnetic flux generating element spaced apart from the read element. The magnetic flux generating...
6728065 Single pole magnetic recording head for perpendicular magnetic recording  
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...
6707643 Perpendicular magnetic recording head having narrow recording gap and perpendicular magnetic recording apparatus using the same  
A perpendicular magnetic recording apparatus includes a perpendicular double-layer film medium including a stack of a soft magnetic backing layer and a perpendicular magnetic recording layer in...
6646827 Perpendicular magnetic recording head with write pole which reduces flux antenna effect  
A perpendicular magnetic recording head includes a write pole designed to reduce or eliminate problems caused by stray magnetic fields. By positioning a write coil close to the air bearing surface...
6501619 Inductive magnetic recording head having inclined magnetic read/write pole and method of making same  
A thin film magnetic read/write head which has a return pole and a read/write pole adjacent to the return pole. The return pole has a vertical sidewall which has a predetermined height and is...
6292329 Thin film single magnetic head  
A thin-film single magnetic pole head which assures highly efficient magnetic energization of a main magnetic pole and which exhibits optimum recording characteristics even in case of recording on...
5995341 Magnetic disk drive recording a signal with a skew angle  
A magnetic disk drive has a magnetic head for recording or reproducing information on or from a magnetic recording medium. The magnetic recording medium includes a magnetic recording layer for...
5854727 Magnetic head and magnetic disk drive  
A ratio tW/pL of a track width tW to a width pL of an end face, in a traveling direction, of a main pole which performs recording or reproduction on or from the magnetic recording layer of a...
5680283 Magnetic head and magnetic disk drive  
A ratio tW/pL of a track width tW to a width pL of an end face, in a traveling direction, of a main pole which performs recording or reproduction on or from the magnetic recording layer of a...
RE33949 Vertical magnetic recording arrangement  
The present device provides a downstream magnetic shield which is integrally formed with a write pole section having a tip to make up a magnetic recording head. The shield and the write pole tip...
5073836 Single pole write and a differential magneto-resistive read for perpendicular recording  
A head structure for reading and writing perpendicular transitions from and to a moving recording medium. The head structure comprises an auxiliary magnetic pole having a tapered edge adjacent its...
5003423 Vertical recording magnetic head  
A vertical recording magnetic head is disposed for movement close to or into sliding contact with a vertical recorded magnetic medium for purpose of magnetic recording and playback. To prevent the...
4985985 Solenoidal thin film read/write head for computer mass storage device and method of making same  
A new read/write head for use in a mass storage device in a digital data processing system. The head is a thin-film head having a solenoidal coil around one or both of the pole pieces. Sets of...
4811142 Magnetic head for vertical magnetic recording and method of producing same  
A main pole exciting type magnetic head for vertical magnetic recording, including a lower slider formed of a magnetic material, a winding core formed of a magnetic material, a substrate formed of...
4809111 Magnetic head for use in vertical recording  
Magnetic head (1) for use in vertical recording comprising two protective blocks (5, 7) which jointly constitute a contact surface (S), and a magnetic pole (3) in the form of a thin film of a soft...
4782416 Magnetic head having two legs of predetermined saturation magnetization for a recording medium to be magnetized vertically  
A magnetic head comprising a stratified buildup on a non-magnetic substrate for a recording medium to be magnetized vertically comprises a ring head-like conducting body for carrying magnetic flux...
4742413 Magnetic memory including a recording device and medium that can be magnetized vertically  
A magnetic memory comprising a thin-film magnetic head as well as a recording medium which is provided with a storage layer that can be magnetized perpendicularly (vertically). The magnetic head...
4740855 Magnetic thin-film head having a main and an auxiliary pole for vertical magnetization  
A magnetic thin-film head with layer-wise buildup on a nonmagnetic substrate is provided for a recording medium which can be magnetized perpendicularly (vertically), and contains a conduction body...
4672494 Magnetic head for effecting perpendicular magnetic recording  
In a magnetic head for perpendicular magnetization recording of a main magnetic pole exited type, a high permeability magnetic thin layer is held at its top portion by nonmagnetic supporter and the...
4656546 Vertical magnetic recording arrangement  
The present device provides a downstream magnetic shield which is integrally formed with a write pole section having a tip to make up a magnetic recording head. The shield and the write pole tip...
4641213 Magnetic head  
A cobalt-base ternary alloy containing small amounts of hafnium and tantalum formed by sputtering, vapor deposition, etc., is used as the principal magnetic pole of a magnetic head for...
4638391 Vertical recording magnetic head having single core body bonded with main magnetic pole in guard layer  
A vertical recording magnetic head of a main pole magnetizing type is made of a magnetic core having a central leg and two side legs, while an electromagnetic coil is supported around the central...
4635153 Magnetic transducer head  
Magnetic transducer head for perpendicular mode recording is disclosed which comprises a main magnetic pole made of a thin film of soft magnetic material and a pair of guard blocks bonded to the...
4571653 Perpendicular magnetic recording head  
A perpendicular magnetic recording head comprising a pole formed of a highly permeable magnetic thin film facing at the end thereof the magnetic surface of a recording medium, a side member formed...
4546398 Perpendicular magnetic recording and reproducing head  
A perpendicular magnetic recording and reproducing head, including: a spiral coil of at least one electrically conductive thin film; and a main pole of a first thin magnetic film having an end for...
4546392 Information recording and reproducing apparatus  
A transmission system, which includes a recorder/reproducer with at least one frequency incapable of producing an output other than a direct current component and which transmits information in a...
4438471 Magnetic head for perpendicular magnetic recording system  
A magnetic head for perpendicular magnetic recording system which assures low write current and high recording reproduction efficiency by using a flat coil and increasing the number of turns of the...
4293884 Multiple leg magnetic transducer structure  
A multiple leg magnetic transducer has two corresponding core portions abutting at a transducing gap plane. Each portion has a transducing gap defining pole and a multiple leg back core contiguous...
Matches 1 - 44 out of 44