| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 428814000 | With protective film | 14 |
| 20080305364 | Magnetic Recording Media and Production Process Thereof - The present invention is a production method for a magnetic recording media in which at least a magnetic layer, a protective layer, and a lubricant layer are sequentially layered onto a non-magnetic substrate | 12-11-2008 |
| 20090004510 | Substrate For Perpendicular Magnetic Recording Medium, Method Of Manufacturing The Same, And Perpendicular Magnetic Recording Medium - A substrate for perpendicular magnetic recording medium 2 is provided with a soft magnetic substrate coat 5. On this soft magnetic substrate coat 5, an anticorrosion coat 5 is formed. The anticorrosion coat 6 is preferably formed so as to completely cover the entire soft magnetic substrate coat 5. | 01-01-2009 |
| 20090142620 | MAGNETIC RECORDING MEDIUM, METHOD OF MANUFACTURING THE SAME, AND MAGNETIC RECORDING/REPRODUCING APPARATUS - A magnetic recording medium is obtained by easily patterning a magnetic recording layer without deteriorating its electromagnetic conversion characteristics, by forming a silicon-based protective film between the magnetic recording layer and a photoresist, and performing dry etching and oxygen plasma processing. | 06-04-2009 |
| 20090162700 | COATINGS AND METHODS FOR PARTICLE REDUCTION - The present disclosure relates to high purity apparati, e.g., magnetic hard disk drives, and more specifically, to coatings for particle reduction of surfaces of such apparati. The provided coatings include thin polymer coatings with reactive pendant groups having crosslinking functionality and ability to anchor to substrate surfaces to suppress particle shedding from substrate surfaces. Provided is a substrate that includes a coating on at least a portion of the substrate that comprises a fluorinated acrylate random copolymer. Methods of reducing particulate contamination are also provided. | 06-25-2009 |
| 20090274931 | HARD MAGNET WITH CAP AND SEED LAYERS AND DATA STORAGE DEVICE READ/WRITE HEAD INCORPORATING THE SAME - A method including forming a multilayer structure. The multilayer structure includes a seed layer comprising a first component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The multilayer structure also includes an intermediate layer comprising the first component and a second component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The second component is different than the first component. The multilayer structure further includes a cap layer comprising the first component. The method further includes heating the multilayer structure to an annealing temperature to cause a phase transformation of the intermediate layer. Also a hard magnet including a seed layer comprising a first component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The hard magnet also includes a cap layer comprising the first component. The hard magnet further includes an intermediate layer between the seed layer and the cap layer. The intermediate layer includes the first component and a second component selected from the group consisting of a Pt-group metal, Fe, Mn, Ir and Co. The first component is different than the second component. Additionally, a read/write head including the hard magnet. | 11-05-2009 |
| 20100047628 | METHODS OF ION MILLING FOR MAGNETIC HEADS AND SYSTEMS FORMED THEREBY - A method according to one embodiment includes ion milling at a first angle of greater than about 25 degrees from normal relative to a media facing side of a thin film region of a magnetic head or component thereof for recessing the thin film region at about a constant rate for films of interest of the thin film region, planes of deposition of the films being oriented about perpendicular to the media facing side; and ion milling or plasma sputtering at a second angle of less than about 25 degrees from normal relative to the media facing side of the thin film region for recessing magnetic films therein faster than insulating films therein, the second angle being smaller than the first angle. | 02-25-2010 |
| 20100196738 | MASTER FOR PRINTING SERVO PATTERNS - A master is provided for use in a magnetic printing process. Illustratively, the master is used for printing servo patterns on a magnetic recording medium. The master includes a substrate on which a magnetic underlayer material is disposed. A second magnetic material is disposed over the magnetic underlayer material so as to form a plurality of teeth adapted for use in the magnetic printing process. The teeth may be formed in the second material by an additive or subtractive process. Further, the dimensions of the teeth may be selected to optimize use of the master in a magnetic printing process on perpendicular media. | 08-05-2010 |
| 20110014497 | CORROSION INHIBITOR INCORPORATED IN CARBON OVERCOATS - Recording heads for a data storage system include a first side having at least a portion of a metal component. A carbon overcoat is on the first side and covers the at least a portion of a metal component. A corrosion inhibitor is incorporated in the carbon overcoat. The corrosion inhibitor is illustratively located between the carbon overcoat and the at least a portion of a metal component, on top of the carbon overcoat, or within the carbon overcoat. In an embodiment, the carbon overcoat includes diamond-like carbon. | 01-20-2011 |
| 20110256424 | PERFLUOROPOLYETHER LUBRICANT AND SYSTEMS COMPRISING SAME - A surface agent includes two end portions and a middle portion disposed between the end portions. The end portions include a terminal section and a midsection. The terminal section includes at least one surface active functional group. The midsection includes at least one perfluoroethyl ether unit. The middle portion includes at least one perfluorobutyl ether unit. | 10-20-2011 |
| 20120282491 | FLUORINATED POLYTETRAMETHYLENE GLYCOL (PTMG) WITH DIEPOXIDE ENDGROUPS AS MAGNETIC LUBRICANTS - A surface agent includes two end portions and a middle portion disposed between the end portions. The end portions include a terminal section and a midsection. The terminal section includes at least one surface active functional group. The midsection includes at least one perfluoroethyl ether unit. The middle portion includes at least one perfluorobutyl ether unit. | 11-08-2012 |
| 20130330573 | Layered Near-field Transducer - A near-field transducer includes a substrate that defines a substrate-parallel plane. The near-field transducer also includes a composite layer deposited on the substrate-parallel plane. The composite layer has a first layer of the plasmonic material and a second layer of an insertion material adjacent the substrate. The insertion material reduces plastic deformation of the near-field transducer at elevated temperatures. | 12-12-2013 |
| 20140065444 | TITANIUM-SILICON PROTECTIVE FILM COMPOSITION AND APPARATUS - The present disclosure relates to a protective layer composition that includes Ti | 03-06-2014 |
| 20140272472 | METHOD AND APPARATUS FOR CHEMICAL-MECHANICAL POLISHING - In accordance with certain embodiments, a method can be utilized that includes depositing a backfill material layer over a reader stack; depositing a chemical-mechanical-polishing stop layer above the layer of backfill material; and depositing a sacrificial layer on top of the chemical-mechanical-polishing stop layer. | 09-18-2014 |
| 20150037613 | MAGNETIC DEVICES WITH OVERCOATS - A magnetic device including a magnetic writer; and an overcoat positioned over at least the magnetic writer, the overcoat including tantalum oxide (Ta | 02-05-2015 |
