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| Application No. | Application Title | Issue Date |
| 20080002293 | Thin-film magnetic head, method of manufacturing the same, head gimbal assembly and hard disk drive A thin-film magnetic head is manufactured as follows. First, a base insulating layer having a magnetic pole forming depression sunken into a form corresponding to the main magnetic pole layer is formed, a stop film for CMP is formed such as to fill the magnetic pole for... | 01/03/2008 |
| 20080002294 | Yoke-type magnetic head and magnetic disk apparatus According to one embodiment, a yoke-type magnetic head for reading out magnetic information from a medium in which information is magnetically recorded in a track direction, the head includes a magnetic pole which is provided on a plane perpendicular to a linear recordi... | 01/03/2008 |
| 20070291408 | MAGNETIC HEAD WITH CONDUCTIVE UNDERLAYER A magnetic head includes a wafer substrate and a conductive underlayer formed directly on the substrate. An insulating layer is formed above the conductive layer. A reader and/or writer thereof is formed above the insulating layer. Another magnetic head includes a subst... | 12/20/2007 |
| 20070291411 | MULTI-CHANNEL HEAD A multi-channel head includes a substrate, a plurality of write elements arranged in a track width direction above the substrate in a lamination direction, and a plurality of read elements arranged in the track width direction above the plurality of write elements in th... | 12/20/2007 |
| 20070291410 | Method of Manufacturing Perpendicular Magnetic Recording Medium and Perpendicular Magnetic Recording Medium In order to increase a surface recording density by greatly increasing a track density with maintaining a recording and reproducing property which is not less than that of the prior art, a nonmagnetic substrate 11, target materials 12, and magnetic plates ... | 12/20/2007 |
| 20070291409 | Magnetic head for perpendicular magnetic recording A magnetic head comprises a pole layer and first and second coils located in regions sandwiching the pole layer. Each of the two coils is flat-whorl-shaped. The first coil incorporates an inner connecting portion and an outer connecting portion opposite to the inner con... | 12/20/2007 |
| 20070285837 | Perpendicular magnetic recording head for high recording density Provided is a perpendicular magnetic recording head for high density recording. The perpendicular magnetic recording head includes a coil, a return pole, a sub-yoke, and a main pole. The main pole has a pole tip including a second end surface that is spaced a predetermi... | 12/13/2007 |
| 20070285835 | Magnetic writer including an electroplated high moment laminated pole A magnetic writing pole writes perpendicularly to a magnetic medium. The writing pole includes a multilayer structure with alternately electroplated magnetic layers and electroplated non-magnetic layers. The writing pole has a down-track thickness near the magnetic medi... | 12/13/2007 |
| 20070285836 | Magnetic head and method of producing the same The method is capable of producing a compact magnetic head, which has superior characteristics with a small size recording coil and which is capable of restraining magnetic loss. The magnetic head includes a recording coil, a lower magnetic pole and a back gap section. ... | 12/13/2007 |
| 20070279803 | THIN-FILM MAGNETIC HEAD, HEAD GIMBAL ASSEMBLY, AND HARD DISK SYSTEM The invention provides a thin-film magnetic head wherein the combined release angle Φ for a dominant recording magnetic field generated from a magnetic pole layer toward a patterned media for the purpose of recording magnetic information is set to within an angle range... | 12/06/2007 |
| 20070279802 | Magnetic head and method of manufacturing same, and method of forming patterned layer A method of forming a magnetic head comprises the steps of: selectively exposing through the use of a photomask a photoresist layer unpatterned; forming a pattern for forming a pole layer by developing the photoresist layer after the exposure; and forming the pole layer... | 12/06/2007 |
| 20070279801 | Manufacturing method of magnetoresistive effect element, manufacturing method of thin-film magnetic head and thin-film magnetic head A manufacturing method of an MR element in which current flows in a direction perpendicular to layer planes, includes a step of forming on a lower electrode layer an MR multi-layered film having a cap layer at a top thereof, a step of forming a mask on the cap layer of ... | 12/06/2007 |
| 20070274004 | Thin film magnetic head having heating element A thin film magnetic head is provided, in which the amount of protrusion in the periphery of an element portion can be reduced or a local temperature increase of electrode leads of a heating element can be prevented. The thin film magnetic head includes a playback eleme... | 11/29/2007 |
| 20070274003 | MAGNETIC RECORDING/REPRODUCING SYSTEM, AND THIN-FILM MAGNETIC HEAD The invention provides a magnetic recording/reproducing system constructed such that until the skew angle is past the maximum skew angle αmax, the edges of the write shield layer and the edges of the lower read shield layer do not overlap on the same track, ... | 11/29/2007 |
| 20070268628 | Abs through aggressive stitching Aggressive (i.e. tight tolerance) stitching offers several advantages for magnetic write heads but at the cost of some losses during pole trimming. This problem has been overcome by replacing the alumina filler layer, that is used to protect the stitched pole during tri... | 11/22/2007 |
| 20070268624 | DUAL POLARITY BIAS FOR PROLONGING THE LIFE OF A HEATING ELEMENT IN MAGNETIC DATA STORAGE DEVICES A magnetic read/write head having a heating element to induce a desired amount of thermal protrusion in the read and write elements to control the fly height of the read and write elements over a magnetic medium. The heating element is connected with circuitry that prov... | 11/22/2007 |
| 20070268623 | Magnetic write head design for reducing wide area track erasure A magnetic write design for reducing Wide Area Track Erasure (WATEr). The write head design includes a magnetic pole and a non-magnetic, electrically conductive eddy current confining structure (ECC structure) formed adjacent to the write pole at the air bearing surface... | 11/22/2007 |
| 20070268626 | Perpendicular magnetic recording head and magnetic disk apparatus According to one embodiment, a perpendicular magnetic recording head includes a main pole which generates a recording magnetic field, a return pole which forms a closed magnetic circuit for the recording magnetic field, and a side shield magnetically spaced from the mai... | 11/22/2007 |
| 20070268625 | Method for manufacturing a magnetic write head having a trailing shield with an accurately controlled trailing shield gap thickness A method for constructing a magnetic write head for use in perpendicular magnetic recording, the write head having a write pole with a trailing shield. After forming a magnetic write pole such as by masking and ion milling a magnetic write pole layer, a thin layer of al... | 11/22/2007 |
| 20070268627 | METHOD FOR MANUFACTURING A SELF-ALIGNED, NOTCHED TRAILING SHIELD FOR PERPENDICULAR RECORDING A perpendicular magnetic write head having a notched, self aligned trailing shield for canting a magnetic field emitted therefrom. ... | 11/22/2007 |
| 20070263322 | Magnetic devices having magnetic features with CMP stop layers A magnetic device having a magnetic feature, the magnetic feature including a magnetic portion comprising a magnetic material, a region of non-magnetic material adjacent to the magnetic portion, and a stop layer disposed above the region of non-magnetic material, defini... | 11/15/2007 |
| 20070258167 | Perpendicular magnetic write head having a magnetic write pole with a concave trailing edge A magnetic write head for perpendicular magnetic recording having a write pole with a concave trailing edge. The magnetic write pole can have a trapezoidal shape with first and second laterally opposed sides that are further apart at the trailing edge than at the leadin... | 11/08/2007 |
| 20070253108 | Magnetic head, method of manufacturing the magnetic head, and magnetic disk device A magnetic head used in a lamp load type magnetic disk device is disclosed. The magnetic head includes a head slider having a recording element and/or a reproducing element, and a suspension that supports the head slider. The suspension includes a magnetic head support ... | 11/01/2007 |
| 20070253104 | THIN-FILM MAGNETIC HEAD HAVING MAGNETIC LAYER WITH NON-MAGNETIC PORTION Provided is a thin-film magnetic head capable of suppressing ATE while ensuring sufficient controllability of the magnetic pole width and sufficient write field intensity. The head includes an electromagnetic coil element comprising: upper and lower magnetic layers; a w... | 11/01/2007 |
| 20070253105 | Thin film magnetic head and fabrication process Embodiments in accordance with the present invention provide a thin film magnetic head for preventing a short-circuit failure during formation of a track portion or a stripe-height portion and improving a yield. In one embodiment, a stripe-height direction is first form... | 11/01/2007 |
| 20070253106 | Magnetic head apparatus and magnetic recording and reproducing apparatus A magnetic head apparatus is provided which is capable of recording data in a recoding layer having high coercive force with high accuracy without heating. A magnetic recording and reproducing apparatus is also provided which has the magnetic head apparatus. A recording... | 11/01/2007 |
| 20070253107 | Perpendicular recording magnetic head Embodiments in accordance with the present invention provide a perpendicular recording magnetic head whose dimensional dependency on the nonuniformity of magnetic field strength and distribution during manufacture is minimized, with narrowed tracks and without attenuati... | 11/01/2007 |
| 20070247748 | PERPENDICULAR MAGNETIC RECORDING SYSTEM WITH MEDIUM HAVING THIN SOFT UNDERLAYER AND RECORDING HEAD HAVING THICK-THROAT TRAILING SHIELD A perpendicular magnetic recording data storage system combines a perpendicular medium that has a thin low-magnetic-permeability or “soft” underlayer (SUL) with a recording head that has a trailing shield (TS) with a thick throat height, i.e., a thickness in a direc... | 10/25/2007 |
| 20070247753 | THIN FILM MAGNETIC HEAD SUBSTRATE WITH MONITOR ELEMENT A thin film magnetic head substrate includes a plurality of head element portions having read elements and write elements in rows. Adjacent head element portions interpose a read monitor element and a write monitor element that are used as element resistance monitors fo... | 10/25/2007 |
| 20070247749 | Structure and method for reduced corrosion of auxiliary poles during the fabrication of perpendicular write heads A method and structure for reducing corrosion during the manufacture of perpendicular write heads is disclosed. Auxiliary pole structures (otherwise known as trailing shields and wrap around shields) are susceptible to corrosion due to their iron containing composition ... | 10/25/2007 |
| 20070247752 | Perpendicular magnetic head A perpendicular magnetic head suppresses pole erasing due to a remanent magnetization component of a main pole and is capable of higher density recording. The perpendicular magnetic head is equipped with a main pole that produces magnetic flux toward a medium surface of... | 10/25/2007 |
| 20070247750 | Magnetic write head design for reducing temperature induced protrusion A magnetic write pole having a structure that prevents thermally induced pole tip protrusion. The write head has a return pole with a magnetic pedestal formed at the air bearing surface (ABS) and a back gap at an end opposite the ABS. An electrically conductive write co... | 10/25/2007 |
| 20070247751 | Trailing shield design for reducing wide area track erasure (water) in a perpendicular recording system A magnetic structure for use in a magnetic head for avoiding wide angle track erasure and other forms of adjacent track interference. The magnetic structure includes a trailing shield having a specially configured back edge opposite the air bearing surface ABS. The magn... | 10/25/2007 |
| 20070242389 | Method for manufacturing a magnetic write head using a protective layer to prevent write pole consumption A method of manufacturing a write pole that prevents P2 pedestal consumption during ion milling removal of coil and pole seed layers. The write head can be constructed by forming a first pole and then forming a magnetic pedestal (P2) over the first pole. A protective la... | 10/18/2007 |
| 20070236833 | Method and apparatus for integrating a stair notch and a gap bump at a pole tip in a write head A method and apparatus for integrating a stair notch and a gap bump at a pole tip in a write head is disclosed. A protective plated layer is formed over the bump to prevent the bump form being damaged during formation of the notch at the pole tip. The flux from the seco... | 10/11/2007 |
| 20070236834 | PERPENDICULAR MAGNETIC RECORDING HEAD HAVING FLARED PART A perpendicular magnetic recording head includes a nonmagnetic insulating layer and a main magnetic pole layer disposed on the nonmagnetic insulating layer. The main magnetic pole layer includes a pole straight part exposed in an opposing surface opposite a recording me... | 10/11/2007 |
| 20070236831 | Shaped trailing shield of a perpendicular recording write element Write elements are discussed having a write pole and an associated trailing shield. A leading side of the trailing shield faces a trailing side of the write pole. The leading side of the trailing shield has a shape such that a center portion of the leading side has less... | 10/11/2007 |
| 20070236832 | Lift-off method for forming write pole of a magnetic write head and write pole formed thereby A lift-off method for forming write pole of a magnetic write head and write pole formed thereby is disclosed. A write pole including a hard mask on a top portion of the write pole is formed. A layer of material for reinforcing sidewall fencing of the write pole is depos... | 10/11/2007 |
| 20070230046 | Write head design and method for reducing adjacent track interference in at very narrow track widths A perpendicular write head having a wrap around trailing shield for reducing stray field writing and adjacent track interference. The trailing shield is notched, having an un-notched portion directly behind (trailing) the write pole and first and second notched portions... | 10/04/2007 |
| 20070230047 | Thermally assisted recording of magnetic media using an optical resonant cavity The media heating device of the magnetic head includes an optical resonant cavity produces a high intensity near-field optical beam of subwavelength dimension adjacent to the write pole. A suitable resonant cavity may be a spherical cavity, disk shaped cavity, ring shap... | 10/04/2007 |
