Patent application number | Description | Published |
20090251821 | DEDICATED ID-OD WRITER WITH BEVELED POLE TIPS AND METHOD OF MANUFACTURE - A transducing head for use with a storage medium rotatable about an axis includes first and second writers for writing to the storage medium. The first writer is configured for dedicated writing to a first radial region of the storage medium, and the second writer is configured for dedicated writing to a second radial region of the storage medium. The second radial region is located radially outward from the first radial region. | 10-08-2009 |
20090284874 | SELF-ALIGNED PERPENDICULAR WRITER POLE AND FRONT SHIELD - A write pole structure includes a write pole having a tip region. A shield structure is spaced from the write pole by a gap at the tip region. The shield structure includes a front shield and a spacer layer on the back of the front shield. A yoke is formed on the write pole, and an end of the yoke is aligned with the back end of the spacer layer. | 11-19-2009 |
20110026158 | METHODS AND DEVICES TO CONTROL WRITE POLE HEIGHT IN RECORDING HEADS - Recording heads for data storage systems are provided. Recording heads illustratively include a write pole, a bumper, a dielectric layer, and a surface. In some embodiments, a portion of the surface includes portions of the write pole, bumper, and dielectric layer. The write pole, bumper, and dielectric layer are illustratively made from materials that have polishing rates. In some embodiments, the polishing rate for the write pole material is more similar to the polishing rate for the bumper material than it is to the polishing rate for the dielectric layer material. | 02-03-2011 |
20110179634 | METHOD OF MAKING A TRANSDUCER WITH A CONDUCTIVE MAGNETIC LAYER - A transducer includes a first layer that is selectively deposited in a contact region to form a core, and selectively deposited in a transducer region to form a first element of the transducer. The transducer includes an electrically conductive magnetic deposit. The electrically conductive magnetic deposit forms a sidewall on the core. The electrically conductive magnetic deposit forms a second element of the transducer in the transducer region. The second element of the transducer has a planarized surface that is coplanar with a planarized surface of the sidewall. | 07-28-2011 |
20120250187 | WRITE HEAD WITH MODIFIED SIDE SHIELDS - A write head, the write head having an air bearing surface, the write head including a magnetic write pole, wherein at the air bearing surface, the write pole has a trailing surface, a leading surface that is opposite the trailing surface, and first and second surfaces; a trailing shield proximate the trailing surface of the magnetic write pole; first and second gaps proximate the first and second surfaces of the magnetic write pole; first and second side shields proximate the first and second gaps, each of the first and second side shields having a trailing shield surface; and first and second antiferromagnetic-coupling layers positioned between the trailing shield surfaces of the first and second side shields and the trailing shield. | 10-04-2012 |
20120268843 | Shaped Magnetic Write Pole - A magnetic shield is adjacent a write pole. The write pole has a body portion with a body thickness and an extension portion with parallel first and second sides that each tilt towards the magnetic shield at a predetermined angle proximal to an air bearing surface (ABS). The extension portion may be capable of enhancing a write field gradient of the magnetic shield by reducing magnetic saturation. | 10-25-2012 |
20120327535 | Chamfered Magnetic Write Pole - A write pole can have a magnetically conductive pole tip has at least one corner. The at least one corner may be chamfered to limit magnetic saturation of the conductive pole tip. The conductive pole tip can have one or more beveled surface that has a chamfered corner which extends a predetermined distance along an edge of the write pole. | 12-27-2012 |
20130010386 | Magnetically Biased Write Pole - An apparatus and associated method provides a magnetic element, such as a data transducing head. A first permanent magnet may be configured to bias the write pole to decrease remnant magnetization and erasure after write (EAW). The first permanent magnet can be separated from the write pole be a predetermined distance. | 01-10-2013 |
20130321955 | Low-Recess Write Pole Coil Near Shield at Media-Facing Surface - An apparatus includes a write pole magnetically coupled to write coils that generate a first magnetic field during a switching event. The apparatus includes a shield at a media-facing surface and proximate the write pole. A conductive element is disposed proximate the shield and configured to generate a second magnetic field opposite to the first magnetic field during the switching event. A selected one of the write coils is located adjacent the shield separate from others of the write coils. | 12-05-2013 |
20130344351 | WRITE POLE FOR RECORDING HEAD - A write pole structure disclosed herein includes a write pole layer, a bottom layer including a beveled surface, and a cap layer between the write pole layer and the bottom layer, wherein the cap layer is made of a material with hardness less than hardness of the write pole layer. | 12-26-2013 |
20140004387 | THIN FILM WITH TUNED GRAIN SIZE | 01-02-2014 |
20140022673 | WRITE HEAD WITH MODIFIED SIDE SHIELDS - A write head, the write head having an air bearing surface, the write head including a magnetic write pole, wherein at the air bearing surface, the write pole has a trailing surface, a leading surface that is opposite the trailing surface, and first and second surfaces; a trailing shield proximate the trailing surface of the magnetic write pole; first and second gaps proximate the first and second surfaces of the magnetic write pole; first and second side shields proximate the first and second gaps, each of the first and second side shields having a trailing shield surface; and first and second antiferromagnetic-coupling layers positioned between the trailing shield surfaces of the first and second side shields and the trailing shield. | 01-23-2014 |
20140063657 | Magnetic Recording Head Having a Pole Tip Shield - A write element including a pole tip shield is disclosed. In embodiments disclosed, for example, the pole tip shield includes side shield portions fabricated of a graded magnetic moment material to form graded side shield portions having a magnetic moment that decreases in the down-track direction along a length of the side shield portions. In another embodiment, the pole tip shield includes side shield portions having a shortened length extending along a partial length of side edges of the pole tip. In illustrated embodiments, the side shield portions are formed of a contoured body having an indented portion forward of the leading edge of the pole tip. The indented portion has a rounded indented surface contour forming a rounded profile for a gap region between a leading edge portion of the pole tip shield forward of the leading edge of the pole tip. | 03-06-2014 |
20140146417 | Data Writer with Tapered Side Shield Sidewalls - A data writer may be generally configured at least with a write pole that has a pole sidewall and a continuous first taper angle connecting leading and trailing edges. The write pole can be positioned adjacent to a side shield that is configured with first and second shield sidewalls tapered to a shield tip that is the closest point between the write pole and side shield. | 05-29-2014 |
20140146856 | THIN FILMS HAVING LARGE TEMPERATURE COEFFICIENT OF RESISTANCE AND METHODS OF FABRICATING SAME - An apparatus comprises a head transducer and a resistive temperature sensor provided on the head transducer. The resistive temperature sensor comprises a first layer comprising a conductive material and having a temperature coefficient of resistance (TCR) and a second layer comprising at least one of a specular layer and a seed layer. A method is disclosed to fabricate such sensor with a laminated thin film structure to achieve a large TCR. The thicknesses of various layers in the laminated thin film are in the range of few to a few tens of nanometers. The combinations of the deliberately optimized multilayer thin film structures and the fabrication of such films at the elevated temperatures are disclosed to obtain the large TCR. | 05-29-2014 |
20140153133 | Write Pole With Shaped Box Shield - A magnetic element may be generally configured as a data writer constructed at least with a write pole positioned within and separated from a box shield by a write gap. The box shield may be configured to maintain at least a separation distance from a first side of a leading edge of the write pole to an opposite second side of the leading edge. | 06-05-2014 |
20140169146 | WRITE POLE FOR RECORDING HEAD - A write pole structure disclosed herein includes a write pole, a trailing shield, and a high magnetic moment (HMM) material layer on a surface of the trailing shield facing the write pole. | 06-19-2014 |
20140268415 | GAP BETWEEN MAGNETIC MATERIALS - In accordance with one embodiment, a method may be implemented by depositing a non-magnetic gap layer of material above a main pole layer of magnetic material; depositing a sacrificial layer of material above the non-magnetic gap layer of material; etching a portion of the sacrificial layer of material while not entirely removing the sacrificial layer of material; and depositing additional sacrificial material to the etched sacrificial layer. | 09-18-2014 |
20140272471 | NON-MAGNETIC SEED LAYER METHOD AND APPARATUS - In accordance with one embodiment, an apparatus can be configured that includes a main pole layer of magnetic material; a second layer of magnetic material; a first gap layer of non-magnetic material disposed between the main pole layer and the second layer of magnetic material; a second gap layer of non-magnetic material disposed between the main pole layer and the second layer of magnetic material; and wherein the second gap layer of non-magnetic material is disposed directly adjacent to the second layer of magnetic material. In accordance with one embodiment, this allows the gap to serve as a non-magnetic seed for the second layer of magnetic material. In accordance with one embodiment, this allows the gap to serve as a non-magnetic seed for the second layer of magnetic material. In accordance with one embodiment, a method of manufacturing such a device may also be utilized. | 09-18-2014 |
20140376131 | Data Writer with Tapered Side Shield Sidewalls - A data writer may be generally configured at least with a write pole that has a pole sidewall and a continuous first taper angle connecting leading and trailing edges. The write pole can be positioned adjacent to a side shield that is configured with first and second shield sidewalls tapered to a shield tip that is the closest point between the write pole and side shield. | 12-25-2014 |
Patent application number | Description | Published |
20090210745 | Runtime Error Correlation Learning and Guided Automatic Recovery - A method and apparatus for automatic error analysis and recovery for applications on one or more computer systems, which maintain a dependency structure of the applications, maintain correlation information between errors and error symptoms, and analyze and recover a problem when the problem occurs. The method, program product or system further utilizes a centralized knowledge base for runtime error handling and problem resolution. | 08-20-2009 |
20090299931 | PROBLEM SHOOTING PROCESS INTELLIGENTLY ADAPTED TO FIT USER'S SKILLS - The present disclosure is directed to a method for automatically adapting the problem shooting steps to the user's skill level. | 12-03-2009 |
20140269685 | SYSTEM GUIDED SURROGATING CONTROL IN BROADCAST AND MULTICAST - Method, computer program product, and system to assist in distribution of packets between a plurality of switch elements in a distributed switch, by monitoring an attribute of each of the plurality of switch elements including a first switch element and a first surrogate switch element, the first surrogate switch element in a first level of a hierarchy and configured using a default hierarchy configuration, the default hierarchy configuration forwarding a data frame to at least one of: a destination switch element of the data frame, and a second surrogate switch element, the second surrogate switch element in a second hierarchy level; computing a score, based on the monitored attribute, for each of the switch elements; and upon determining the score of the first switch element is greater than the score of the first surrogate switch element, designating the first switch element as the first surrogate switch element. | 09-18-2014 |
20140269742 | SYSTEM GUIDED SURROGATING CONTROL IN BROADCAST AND MULTICAST - Method, computer program product, and system to assist in distribution of packets between a plurality of switch elements in a distributed switch, by monitoring an attribute of each of the plurality of switch elements including a first switch element and a first surrogate switch element, the first surrogate switch element in a first level of a hierarchy and configured using a default hierarchy configuration, the default hierarchy configuration forwarding a data frame to at least one of: a destination switch element of the data frame, and a second surrogate switch element, the second surrogate switch element in a second hierarchy level; computing a score, based on the monitored attribute, for each of the switch elements; and upon determining the score of the first switch element is greater than the score of the first surrogate switch element, designating the first switch element as the first surrogate switch element. | 09-18-2014 |
20140269756 | PORT MEMBERSHIP TABLE PARTITIONING - A firmware model is provided for a shared port membership table that is partitioned for different needs of a distributed network switch, such as broadcast groups, multicast groups, ACL rules, and other port membership groupings. The shared port membership table enables a control point to set the size of each of the types of port membership information based on their usage or expected usage. By shrinking one partition, the control point is able to use the port group entries for a different partition of port group information. | 09-18-2014 |
20140280826 | PORT MEMBERSHIP TABLE PARTITIONING - A firmware model is provided for a shared port membership table that is partitioned for different needs of a distributed network switch, such as broadcast groups, multicast groups, ACL rules, and other port membership groupings. The shared port membership table enables a control point to set the size of each of the types of port membership information based on their usage or expected usage. By shrinking one partition, the control point is able to use the port group entries for a different partition of port group information. | 09-18-2014 |