| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 427130000 | With post-treatment of coating or coating material | 38 |
| 20080199602 | Method for manufacturing magneto-optical recording medium - A method for manufacturing a magneto-optical recording medium in which reading of recorded information is performed through domain wall displacement in a reproduction layer is provided, in which magnetic separation of groove side-wall portions is performed more reliably; as a result a magneto-optical recording medium with satisfactory recording and reproduction characteristics can be provided. The method is to manufacture a magneto-optical recording medium in which on a substrate | 08-21-2008 |
| 20080226817 | TILTED PERPENDICULAR MAGNETIC RECORDING MEDIA AND METHOD AND APPARATUS THEREFOR - Disclosed is a perpendicular magnetic recording medium comprising:
| 09-18-2008 |
| 20080274271 | Thin-film magnetic head structure adapted to manufacture a thin-film head having a base magnetic pole part, a york magnetic pole part, and an intervening insulative film - A thin-film magnetic head structure has a configuration adapted to manufacture a thin-film magnetic head configured such that a main magnetic pole layer including a magnetic pole end part on a side of a medium-opposing surface opposing a recording medium, a write shield layer opposing the magnetic pole end part so as to form a recording gap layer on the medium-opposing surface side, and a thin-film coil wound about the write shield layer or main magnetic pole layer are laminated. The main magnetic pole layer includes a base magnetic pole part comprising the magnetic pole end part and a base depression distanced farther from the medium-opposing surface than the magnetic pole end part, and an embedded magnetic pole part buried in the base depression and joined to the base magnetic pole part. The thin-film magnetic head structure includes a yoke magnetic pole part joined to the base magnetic pole part and embedded magnetic pole part at a position distanced farther from the medium-opposing surface than the recording gap layer, and an intervening insulative film disposed between the embedded magnetic pole part and yoke magnetic pole part at a position distanced farther from the medium-opposing surface than the recording gap layer. | 11-06-2008 |
| 20090017198 | Thin-film magnetic head, method of manufacturing the same, head Gimbal assembly, and hard disk drive - A thin-film magnetic head has a laminated construction comprising a main pole layer having a magnetic pole tip on a side of the medium-opposing surface opposing a recording medium, a write shield layer opposing the magnetic pole tip forming a recording gap layer, on the side of the medium-opposing surface, and a thin-film coil wound around at least a portion of the write shield layer. The thin-film magnetic head has an upper yoke pole layer having a larger size than the portion of the main pole layer which is more distant from the medium-opposing surface than the recording gap layer, wherein the upper yoke pole layer is joined to the side of the main pole layer which is near the thin-film coil. | 01-15-2009 |
| 20090169732 | PROTECTING HARD BIAS MAGNETS DURING A CMP PROCESS USING A SACRIFICIAL LAYER - Read elements and associated methods of fabrication are disclosed. During fabrication of the read element, and more particularly, the fabrication of the hard bias magnets, a non-magnetic sacrificial layer is deposited on top of the hard bias material. When a CMP process is subsequently performed, the sacrificial layer is polished instead of the hard bias material. The thicknesses of the hard bias magnets are not affected by the CMP process, but are rather defined by the deposition process of the hard bias material. As a result, the variations in the CMP process will not negatively affect the magnetic properties of the hard bias magnets so that they are able to provide substantially uniform effective magnetic fields to bias the free layer of the magnetoresistance (MR) sensor of the read element. | 07-02-2009 |
| 20090191331 | PERPENDICULAR MAGNETIC RECORDING MEDIUM MANUFACTURING METHOD - [Object] To provide a manufacturing method that can easily enhance a reversed domain nucleation magnetic field of a magnetic recording layer in a perpendicular magnetic recording medium having, over a substrate, a soft magnetic layer, the magnetic recording layer having a granular structure, and a continuous layer having a high perpendicular magnetic anisotropy. | 07-30-2009 |
| 20090280242 | Orientation of Carbon Nanotubes Containing Magnetic Nanoparticles in a Magnetic Storage Medium - A magnetic storage medium is formed of magnetic nanoparticles that are encapsulated within carbon nanotubes, which are arranged in a substrate to facilitate the reading and writing of information by a read/write head. The substrate may be flexible or rigid. Information is stored on the magnetic nanoparticles via the read/write head of a storage device. These magnetic nanoparticles are arranged into data tracks to store information through encapsulation within the carbon nanotubes. As carbon nanotubes are bendable, the carbon nanotubes may be arranged on flexible or rigid substrates, such as a polymer tape or disk for flexible media, or a glass substrate for rigid disk. A polymer may assist holding the nano-particle filled carbon-tubes to the substrate. Magnetic fields may be applied to draw the carbon nanotubes into data tracks and orient the carbon nanotubes within the data tracks. | 11-12-2009 |
| 20100028530 | High Performance Magnetic Tunnel Barriers with Amorphous Materials - A magnetic tunneling element is constructed from a MgO or Mg—ZnO tunnel barrier and an amorphous magnetic layer in proximity with the tunnel barrier. The amorphous magnetic layer includes Co and at least one additional element selected to make the layer amorphous. Magnetic tunnel junctions formed from the amorphous magnetic layer, the tunnel barrier, and an additional ferromagnetic layer have tunneling magnetoresistance values of up to 200% or more. | 02-04-2010 |
| 20100034966 | SYSTEM, METHOD AND APPARATUS FOR PLANARIZING MEDIA TOPOGRAPHY VIA SOAKING IN DILUTE NON-FUNCTIONALIZED POLYMER SOLUTION - A method for planarizing media disk surfaces with a polymer solution is disclosed. A non-functionalized lubricant is used to coat the disk surfaces without dewetting issues. The polymer is applied via soaking in a diluted solution for several minutes. The interaction of the polymer with the disk surface leads to preferential adsorption of lubricant into the valleys of the topography on the disk surface. | 02-11-2010 |
| 20100086676 | Apparatus for Cleaning Magnetic Disks and Methods for Manufacturing Magnetic Disks - A method, according to one embodiment, includes forming a lubricant film on a magnetic disk having at least a magnetic recording film above a substrate, and a protective film above the magnetic recording film, and wiping the lubricant film while rotating the substrate, e.g., at about 3.0 m/s to about 3.5 m/s by pressing a pad against a wiping cloth e.g., at a loading speed of about 12 mm/min to about 36 mm/min e.g., under a pressure of about 3 gf/mm | 04-08-2010 |
| 20100129540 | METHOD FOR THE PRODUCTION OF A MAGNETIC LAYER ON A SUBSTRATE AND PRINTABLE MAGNETIZABLE VARNISH - The current invention relates to a method for the production of a magnetic layer on a substrate, comprising the production of a printable varnish, containing 60 weight-% of neodym iron boron powder, 10 weight-% of ferrite powder, preferably strontium hexaferrite powder, 1.4 weight-% of a catalyst, 1.1 weight-% of a dispersing additive, and as the remainder a matrix, preferably an epoxy polyol matrix. These agents are mixed by means of stirring or kneading, and rolled in a three-roll mill. Preferably, they are applied to a substrate by screen printing, and subsequently pre-cured at 80 to 120° C. for six to twelve hours, and then cured at 200° C. to 220° C. for three hours. | 05-27-2010 |
| 20100189886 | Method For Making Data Storage Media - A method for making a data storage media that includes providing a substrate, depositing on the substrate a first layer that includes a magnetic material and a non-magnetic material, heating the first layer, depositing on the first layer a second layer that includes the magnetic material and the non-magnetic material, and heating the second layer and the first layer. A data storage media constructed in accordance with the method of the invention is also provided. | 07-29-2010 |
| 20100323104 | METHOD FOR MANUFACTURING A MAGNETO-RESISTANCE EFFECT ELEMENT - An example method for manufacturing a magneto-resistance effect element involves irradiating inert gas ions to enhance an adhesive force between an area around an oxide layer and a metallic layer. | 12-23-2010 |
| 20110064871 | LAMINATED BODY FOR MANUFACTURING RESIN MOLD, LAMINATED BODY, RESIN MOLD AND METHOD FOR MANUFACTURING MAGNETIC RECORDING MEDIUM - A laminated body which forms a resin mold by compression molding using a master mold, the laminated body having: a pair of mutually facing base materials, a layer of a liquid or gel-like curable resin material sandwiched between the pair of base materials, and one or more flow suppression bodies, which are composed of a cured product of the curable resin material and are sandwiched between the pair of base materials, wherein the layer of the curable resin material is sealed by the pair of base materials and the flow suppression bodies. Also, a method for manufacturing a resin mold using the laminated body. | 03-17-2011 |
| 20110076393 | TRAILING PLATED STEP - Methods for fabrication of magnetic write heads, and more specifically to fabrication of magnetic poles and trailing magnetic pole steps. A write pole may first be patterned on a substrate. Then a side gap material may be patterned along sidewall portions of the write pole. Thereafter, a masking layer may be deposited and patterned to expose a portion of the write pole. A trailing magnetic pole step may be formed on the exposed portion of the write pole. | 03-31-2011 |
| 20110206834 | CURABLE COMPOSITION FOR TRANSFER MATERIALS, AND PATTERN FORMING PROCESS - An object of the invention is to provide curable compositions for transfer materials suited for nanoimprinting processes, which compositions have high dry etching resistance against argon gas and high selectivity of dry etching rate between by argon gas and by oxygen gas, and can be fabricated into fine patterns used as resists or the like. A curable composition for transfer materials includes a (meth)acrylate compound having a triazine skeleton which is obtainable by reacting an aminotriazine compound, a compound having a hydroxyl group and a (meth)acryloyl group in the molecule, and an aldehyde. | 08-25-2011 |
| 20110244118 | Method of Forming Barium Ferrite Magnetic Storage Media - Magnetic storage media and methods for constructing magnetic storage media that include a multilayer structure are described. In general, the magnetic storage media include a substrate, an underlayer formed over the substrate, and a magnetic layer that includes a plurality of magnetic particles formed over the underlayer. In some examples, a magnetic recording medium can be formed by forming an underlayer over a substrate, drying the underlayer, and heat-curing the underlayer prior to forming a magnetic layer over the underlayer. A magnetic layer can then be formed over the underlayer. The magnetic layer may includes a plurality of magnetic particles selected from the group consisting of magnetic platelet-shaped particles and magnetic particles with an aspect ratio less than or equal to approximately 1.5, may then be formed over the underlayer. By heat-curing the underlayer prior to forming the magnetic layer over the underlayer, the formed magnetic recording medium may exhibit an improved magnetic recording surface for recording and storing data. | 10-06-2011 |
| 20110281025 | CURABLE COMPOSITION FOR TRANSFER MATERIALS, AND (METH) ACRYLOYL GROUP-CONTAINING UREA COMPOUND - The invention provides curable compositions for transfer materials suited for nanoimprinting, which have very high transfer properties in a nanoimprinting process, show high selectivity in dry etching rate between by argon gas and by oxygen gas, and can be fabricated into fine patterns with high throughput. The curable composition for transfer materials includes a compound (A) having at least one skeleton selected from Formulae (1) to (3) below, and a (meth)acryloyl group: | 11-17-2011 |
| 20120094017 | Patterned Nanoparticle Assembly Methodology - Methods for creating a precision assembly of nanoparticles by controlled deposition from a colloidal fluid (e.g., a ferrofluid) are disclosed. The method can include assembling magnetic nanoparticles, fixing the nanoparticles in place, and then allowing the completed nanoparticle assembly to be washed and dried to remove unwanted process contaminants left in the assembly fluid while preserving the underlying nanoparticle assembly as designed. | 04-19-2012 |
| 20120128870 | TMR DEVICE WITH IMPROVED MGO BARRIER - A method of forming a high performance magnetic tunnel junction (MTJ) is disclosed wherein the tunnel barrier includes at least three metal oxide layers. The tunnel barrier stack is partially built by depositing a first metal layer, performing a natural oxidation (NOX) process, depositing a second metal layer, and performing a second NOX process to give a M | 05-24-2012 |
| 20120128871 | METHOD FOR PATTERNED MEDIA WITH REDUCED MAGNETIC TRENCH MATERIAL - A bit patterned magnetic media design for reducing the amount of magnetic material located in the trenches between topographic features is disclosed. An intermediate non-magnetic layer is deposited on the topography prior to depositing the functional magnetic layer on the topographic substrate features. The non-magnetic layer increases the width of the land regions that will ultimately support the functional magnetic layer. The non-magnetic layer also reduces the amount of trench deposition that can occur in the subsequent deposition of the magnetic recording layer. By eliminating most of the magnetic trench material, the amount of magnetic flux and readback interference produced by the trench material is reduced to an acceptable level. | 05-24-2012 |
| 20130004661 | MAGNETIC RECORDING MEDIUM AND METHOD OF MANUFACTURING THE SAME - A magnetic recording medium has recording regions including patterns of a magnetic material corresponding to servo signals and recording tracks, non-recording regions including an oxide of the magnetic material formed between the recording regions, and surface oxide films including an oxide of the magnetic material formed on surfaces of the recording regions. | 01-03-2013 |
| 20130029035 | CoFe/Ni Multilayer Film with Perpendicular Anisotropy for Microwave Assisted Magnetic Recording - A spin transfer oscillator with a seed/SIL/spacer/FGL/capping configuration is disclosed with a composite seed layer made of Ta and a metal layer having a fcc(111) or hcp(001) texture to enhance perpendicular magnetic anisotropy (PMA) in an overlying (A1/A2) | 01-31-2013 |
| 20130084387 | METHOD FOR MAKING A PATTERNED PERPENDICULAR MAGNETIC RECORDING DISK HAVING A FePt or CoPt CHEMICALLY ORDERED RECORDING LAYER - A method for making a bit-patterned-media (BPM) magnetic recording disk includes depositing a FePt (or CoPt) alloy recording layer, and then depositing a sealing layer on the FePt layer before high-temperature annealing. The high-temperature annealing causes the FePt to become substantially chemically-ordered in the L1 | 04-04-2013 |
| 20130236639 | METHOD FOR MAKING A CURRENT-PERPENDICULAR-TO-THE-PLANE (CPP) MAGNETORESISTIVE SENSOR CONTAINING A FERROMAGNETIC ALLOY REQUIRING POST-DEPOSITION ANNEALING - A method for making a current-perpendicular-to the-plane giant magnetoresistance (CPP-GMR) sensor with a Heusler alloy pinned layer on the sensor's Mn-containing antiferromagnetic pinning layer uses two annealing steps. A layer of a crystalline non-Heusler alloy ferromagnetic material, like Co or CoFe, is deposited on the antiferromagnetic pinning layer and a layer of an amorphous X-containing ferromagnetic alloy, like a CoFeBTa layer, is deposited on the Co or CoFe crystalline layer. After a first in-situ annealing of the amorphous X-containing ferromagnetic alloy, the Heusler alloy pinned layer is deposited on the amorphous X-containing ferromagnetic layer and a second high-temperature annealing step is performed to improve the microstructure of the Heusler alloy pinned layer. | 09-12-2013 |
| 20140037836 | Thin Seeded Co/Ni Multilayer Film with Perpendicular Anisotropy for Read Head Sensor Stabilization - A method for producing a hard bias (HB) structure that stabilizes a free layer in an adjacent spin valve is disclosed. The HB structure includes a composite seed layer and a metal layer having a fcc(111) or hcp(001) texture to enhance perpendicular magnetic anisotropy (PMA) in an overlying (Co/Ni) | 02-06-2014 |
| 20140106065 | MANUFACTURING METHOD OF MAGNETIC RECORDING MEDIUM - A method for manufacturing a patterned medium of an embodiment includes forming a perpendicular magnetic recording layer on a substrate, forming a mask on the perpendicular magnetic recording layer, milling the perpendicular magnetic recording layer, and depositing a protective layer on the perpendicular magnetic recording layer. The perpendicular magnetic recording layer includes a first element selected from Fe and Co and a second element selected from Pt and Pd, and has a hard magnetic alloy material having an L1 | 04-17-2014 |
| 20140120249 | MAGNETIC RECORDING MEDIUM MANUFACTURING METHOD AND MICROPATTERN MANUFACTURING METHOD - According to one embodiment, in a magnetic recording medium manufacturing method, an inversion liftoff layer and pattern formation layer are formed on a layer on which an inverted pattern is to be formed, a depressions pattern is formed by patterning the pattern formation layer and transferred to the inversion liftoff layer, the surface of the layer on which an inverted pattern is to be formed is exposed by removing the inversion liftoff layer from depressions, an inversion layer is formed on the inversion liftoff layer and exposed layer, and the inversion liftoff layer is removed, thereby forming, on the exposed layer, an inversion layer having a projections pattern obtained by inverting the depressions pattern. | 05-01-2014 |
| 20140178576 | Magnetic Powder Metallurgy Materials - The present invention is directed to electrically conductive compacted metal parts fabricated using powder metallurgy methods. The iron-based powders of the invention are coated with magnetic or pre-magnetic materials. | 06-26-2014 |
| 20140186526 | COMMON MODE FILTER AND METHOD OF MANUFACTURING THE SAME - A common mode filter having heterogeneous laminates includes a first magnetic layer, a nonmagnetic insulating substrate, a second magnetic layer, a first coil layer, and a second coil layer. The second magnetic layer is formed on the nonmagnetic insulating substrate, between the nonmagnetic insulating substrate and the first magnetic layer. The first coil layer is disposed between the first magnetic layer and the second magnetic layer, and includes a first coil. The second coil layer is disposed between the first magnetic layer and the second magnetic layer, and includes a second coil. The first and second coil layers are separated from each other, and the first and second coils are magnetically coupled to each other. | 07-03-2014 |
| 20140212578 | MAGNETIC SHEET COMPOSITION, MAGNETIC SHEET, AND METHOD FOR PRODUCING MAGNETIC SHEET - To provide a magnetic sheet composition, which contains: a binder; magnetic powder; and a curing agent, wherein the binder contains a thermosetting organic resin, and the curing agent contains a sulfonium borate complex expressed by General Formula 1: | 07-31-2014 |
| 20140295073 | MAGNETIC RECORDING MEDIUM FABRICATION METHOD - A method of fabricating a magnetic recording medium by sequentially forming a magnetic recording layer, a protection layer, and a lubricant layer on a stacked body, includes forming the lubricant by depositing a first lubricant on the stacked body after forming the protection layer, by vapor-phase lubrication deposition, without exposing the stacked body to atmosphere, and depositing a second lubricant on the stacked body after depositing the first lubricant, by vapor-phase lubrication deposition, without exposing the stacked body to atmosphere. The first lubricant has a lower molecular mass and a higher chemical polarity than those of the second lubricant. | 10-02-2014 |
| 20150056368 | High Thermal Stability Reference Structure with Out-of-Plane Anisotropy for Magnetic Device Applications - Enhanced Hc and Hk in addition to higher thermal stability to 400° C. are achieved in magnetic devices by adding dusting layers on top and bottom surfaces of a spacer in a synthetic antiferromagnetic (SAF) structure to give a RL1/DL1/spacer/DL2/RL2 reference layer configuration where RL1 and RL2 layers exhibit perpendicular magnetic anisotropy (PMA), the spacer induces antiferromagnetic coupling between RL1 and RL2, and DL1 and DL2 are dusting layers that enhance PMA. Dusting layers are deposited at room temperature to 400° C. RL1 and RL2 layers are selected from laminates such as (Ni/Co)n, L1 | 02-26-2015 |
| 20150072071 | PATTERN FORMATION METHOD, MAGNETIC RECORDING MEDIUM MANUFACTURING METHOD, AND FINE PARTICLE DISPERSION - According to one embodiment, there is provided a pattern formation method including coating a substrate or mask layer with a fine particle coating solution containing fine particles including a protective group having a close surface polarity and containing, on at least surfaces thereof, a material selected from the group consisting of Al, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, Y, Zr, Sn, Mo, Ta, W, and oxides thereof, a viscosity modifier, and a solvent for adjusting mixing of the viscosity modifier and the fine particles having the protective group, thereby forming a fine particle layer on the substrate or mask layer. | 03-12-2015 |
| 20150140207 | METHOD FOR PREPARING ELECTROMAGNETIC WAVE SHIELDING MATERIAL - Disclosed herein is a method for preparing an electromagnetic wave shielding material. The preparation method includes: preparing a fiber matrix; sorbing a metal salt precursor to the fiber matrix by dip coating; and bringing the fiber matrix to which the metal salt precursor is sorbed with a basic solution to oxidize the metal salt precursor such that a magnetic substance can be coated onto the fiber matrix. The method can reduce preparation costs by simplifying the preparation process through dip coating without using a high temperature process. Further, the method can also be applied to a fiber matrix which can be affected by temperature, thereby enlarging the preparation and application range of the electromagnetic wave shielding material. | 05-21-2015 |
| 20150325259 | High Coercivity Magnetic Film for Use as Hot Seed in a Magnetic Write Head and Method to Grow it - A sub-structure, suitable for use as a hot seed on which to form a perpendicular magnetic main write pole, is described. It is made up of a buffer layer of atomic layer deposited alumina on which there are one or more seed layers having a body-centered cubic (bcc) crystal structure. Finally, a magnetic film made of FeCo or FeNi with an as deposited coercivity of 60-110 Oe lies on the seed layer(s). Coercivity is lowered somewhat after the annealing step. It is critical that the high coercivity magnetic film be deposited at a very low deposition rate of around 1 Angstrom per second. The magnetic film is preferably annealed at 220° C. for 2 hours in a 250 Oe applied magnetic field. | 11-12-2015 |
| 20150332724 | MAGNETIC RECORDING MEDIUM FABRICATION METHOD - A method of fabricating a magnetic recording medium by sequentially forming a magnetic recording layer, a protection layer, and a lubricant layer on a stacked body, includes forming the lubricant by depositing a first lubricant on the stacked body after forming the protection layer, by vapor-phase lubrication deposition, without exposing the stacked body to atmosphere, and depositing a second lubricant on the stacked body after depositing the first lubricant, by vapor-phase lubrication deposition, without exposing the stacked body to atmosphere. The first lubricant has a lower molecular mass and a higher chemical polarity than those of the second lubricant. | 11-19-2015 |
| 20160163345 | MAGNETIC RECORDING MEDIUM AND PRODUCTION METHOD OF MAGNETIC RECORDING MEDIUM - The present invention provides: a method of producing, at low temperature, a magnetic recording medium comprising an L1 | 06-09-2016 |
