Abstract: A method of at least one of coating of and applying lacquer on magnetic rings of a rotor magnetic bearing mounted on the rotor, includes arranging of the magnetic rings (4) of the magnetic bearing on the rotor (1) at a location (3) provided for the magnetic rings (4), and coating of and/or applying lacquer on exposed surfaces (10) of the magnetic rings (4), respectively. The rotor includes magnetic rings arranged thereon or therein and coated or having lacquer applied thereon in accordance with the above-described method, and a vacuum pump includes such a rotor.

Abstract: A glass substrate for a magnetic disk of the invention is a disk-shaped glass substrate for a magnetic disk where the substrate has a main surface and end face and is subjected to chemical reinforcement treatment, and is characterized in that the penetration length in the uppermost-portion stress layer on the main surface is 49.1 ?m or less, and that assuming that an angle between the main surface and compressive stress in the stress profile by a Babinet compensator method is ?, a value y of {12·t·ln(tan ?)+(49.1/t)} is the penetration length in the uppermost-portion stress layer or less.

Abstract: The object of the present invention is to improve the productivity of a permanent magnet and to manufacture it at a low cost by effectively coating Dy and Tb on a surface of the magnet of Fe—B-rare earth elements having a predetermined configuration. The permanent magnet of the present invention is manufactured by a coating step for coating Dy on the surface of the magnet of Fe—B-rare earth elements having a predetermined configuration and a diffusing step for diffusing Dy coated on the surface of the magnet into crystal grain boundary phases of the magnet with being heat treated at a predetermined temperature.

Abstract: An electrical steel sheet with an insulation coating excellent in punchability, coating adhesion property and coating film property after annealing, even without containing any chromium compound in the insulation coating. The insulation coating is formed by applying a surface-treatment agent to at least one side of the electrical steel sheet and drying the surface-treatment agent. The surface-treatment agent contains trialkoxysilane and/or dialkoxysilane (A) in which a substituent bound to Si is constituted only by at least one non-reactive substituent selected from the group consisting of hydrogen, an alkyl group, and a phenyl group; and a silane coupling agent (B), at a mass ratio (A/B) of 0.05 to 1.0.

Abstract: Disclosed is an iron-based soft magnetic powder for dust core use, which includes an iron-based soft magnetic matrix powder and a phosphate conversion coating on a surface of the matrix powder. The phosphate conversion coating contains nickel element and has an aluminum content of equal to or less than that in the matrix powder. The iron-based soft magnetic powder has such excellent heat resistance as to maintain electrical insulation at satisfactory level even after subjected to a high-temperature heat treatment.

Abstract: A magnetic device including: a magnetic reader; a magnetic writer; and a variable overcoat, the variable overcoat positioned over at least the magnetic reader and writer, the variable overcoat having an overcoat layer, the overcoat layer having a substantially constant thickness and material; and at least one disparate overcoat portion, the disparate overcoat portion having a different thickness, a different material, or both, than the overcoat layer.

Abstract: A magnetic read sensor having reduced hard bias free layer spacing and improved insulation robustness between the hard bias layers and the shield and sensor. The read sensor has a novel bi-layer insulation layer that can be made very thin while also providing good electrical insulation to prevent sense current shunting. The bi-layer insulation layer can be made by a process that provides improved sensor performance.

Abstract: Magnetic blocks have images disposed thereon. Specifically, a block made from a rigid material includes an image over at least a portion of a first surface and a magnet on at least a portion of a second surface of the block. The block is disposed within a frame or board having a metallic and/or magnetic surface thereon and/or is provided on a metallic and/or magnetized surface. A plurality of blocks having images thereon are disposed together in a tiled arrangement, either in the frame, board or otherwise on the metallic and/or magnetic surface. Moreover, a system comprises the magnetic blocks having images thereon and a frame, board and/or metallic and/or magnetic surface. Methods of making and using the same are further provided.

Abstract: There is provided a method of manufacturing a double-layer composite metal powder particle, the method including preparing an iron (Fe)-based powder particle, forming an insulating layer on a surface of the iron (Fe)-based powder particle, and forming a lubricating wax coating layer on the insulating layer.

Abstract: In accordance with one embodiment, a multi-reader can be manufactured so as to be able to read from multiple regions of a storage device contemporaneously during operation.

Abstract: A metal plate having a pattern of protrusions on a first surface thereof is produced; photoresist is provided on a second surface of the metal plate; the photoresist is removed from a portion of the metal plate corresponding to a loop shaped outer peripheral cutout region that contacts the outer periphery of a mold region of the metal plate; and the metal plate is etched using the remaining photoresist as a mask, in a method for producing and a method for cutting a processing a master mold having a pattern of protrusions and recesses corresponding to data to be transferred on a surface thereof.

Abstract: A method of depositing material onto a base portion of a wafer is disclosed. The method includes forming a bevel into a portion of a surface of the base portion of the wafer and depositing a first layer of conductive material onto the beveled portion of the base portion so that part of the first layer includes a wedge shape above the surface of the base portion. A second layer of conductive material is deposited onto the base portion including the portion of the base portion onto which the first layer of material is deposited.

Abstract: A method for making a film of core-shell nanoparticles generally uniformly arranged on a substrate uses atomic layer deposition (ALD) to form the shells. The nanoparticle cores are placed in a solution containing a polymer having an end group for attachment to the cores. The solution is then applied to a substrate and allowed to dry, resulting in the nanoparticle cores being uniformly arranged by the attached polymer chains. ALD is then used to grow the shell material on the cores, using two precursors for the shell material that are non-reactive with the polymer. The polymer chains also form between the cores and the substrate surface, so the ALD forms shell material completely surrounding the cores. The uniformly arranged core-shell nanoparticles can be used as an etch mask to etch the substrate.

Abstract: A magnetic recording medium according to one embodiment includes at least a ground layer above a non-magnetic substrate; a magnetic recording layer above the ground layer; and an overcoat above the magnetic recording layer, the overcoat characterized in that said overcoat is an amorphous carbon film, wherein a hydrogen content in the overcoat in a center layer thereof in a film thickness direction of said overcoat is from 0.1 atom % to 1.0 atom %. Additional products and methods are also presented.

Abstract: This disclosure is directed at a microparticle for use in water treatment comprising a core layer; a shell layer, deposited on and encasing the core layer; and a photoactive layer surrounding the shell layer. The disclosure also provides a method for producing same.

Abstract: An organically surface-bonded metal or metal oxide material including an inorganic metal or metal oxide and an organic material. The organic material is coated on the surface of the inorganic metal or metal oxide. The inorganic metal or metal oxide and the organic material are linked through a strong chemical bond. The strong chemical bond includes a covalent bond between a metal in the inorganic metal or metal oxide and a nitrogen in the organic material.

Abstract: [Problem] To provide a method for producing a sintered R-T-B based magnet which can get a heavy rare-earth element RH diffused efficiently inside a sintered R-T-B based magnet body. [Solution] This method for producing a sintered R-T-B based magnet includes the steps of: providing a sintered R-T-B based magnet body (where R is a rare-earth element and T is a transition metal element which is mostly comprised of Fe); providing an RH diffusion source which is an alloy comprising: 0.

Abstract: Articles that include a magnetic structure; an intermediate layer, the intermediate layer positioned on the magnetic structure, the intermediate layer having a thickness from about 3 ? to about 50 ?, the intermediate layer including a bottom interface layer, the bottom interface layer positioned adjacent the magnetic structure, the bottom interface layer including atoms of a metal bonded to atoms, compounds, or both of the magnetic structure; an interlayer, the interlayer positioned on the bottom interface layer, the interlayer including oxides of the metal; and a top interface layer, the top interface layer positioned adjacent the interlayer, the top interface layer including atoms of the metal, oxides of the metal, or some combination thereof bonded to atoms or compounds of the adjacent overcoat layer; and an overcoat layer, the overcoat layer positioned on the top interface layer of the intermediate layer.

Abstract: Three structures, and processes for manufacturing them, that improve the performance of a TAMR feature in a magnetic write head are disclosed. This improvement is achieved by making the separation between the edge plasmon generator and the plasmon shield less than the separation between the edge plasmon generator and the optical wave-guide.

Abstract: Provided are methods of forming a material layer by chemically adsorbing metal atoms to a substrate having anions formed on the surface thereof, and a method of fabricating a memory device by using the material layer forming method. Accordingly, a via hole with a small diameter can be filled with a material layer without forming voids or seams. Thus, a reliable memory device can be obtained.

Abstract: A magnetic oxide-quantum dot nanocomposite and methods of synthesizing it. In one embodiment, the magnetic oxide-quantum dot nanocomposite has at least one magnetic oxide nanoparticle coated with a silica (SiO2) shell and terminated with at least one thiol group (—SH), and at least one CdSe/ZnS quantum dot linked with the at least one SiO2-coated magnetic oxide nanoparticle via the at least one thiol group. In one embodiment, the at least one magnetic oxide nanoparticle comprises at least one iron oxide (Fe3O4) nanoparticle.

Abstract: An lubricant composition comprising a C4 to C15 fluorooxirane fluid having a boiling point ?20° C., and a lubricant soluble or dispersible therein, is provided.

Abstract: A generic route for synthesis of asymmetric nanostructures. This approach utilizes submicron magnetic particles (Fe3O4—SiO2) as recyclable solid substrates for the assembly of asymmetric nanostructures and purification of the final product. Importantly, an additional SiO2 layer is employed as a mediation layer to allow for selective modification of target nanoparticles. The partially patched nanoparticles are used as building blocks for different kinds of complex asymmetric nanostructures that cannot be fabricated by conventional approaches. The potential applications such as ultra-sensitive substrates for surface enhanced Raman scattering (SERS) have been included.

Abstract: A permanent magnet is provided which has formed a Dy, Tb film on a surface of an iron-boron-rare earth sintered magnet of a predetermined shape, with diffusion thereof into grain boundary phases, having a higher coercive force. The method of manufacturing a permanent magnet includes a film-forming step of evaporating metal evaporating material containing at least one of Dy and Tb and adhering evaporated metal atoms to a surface of the iron-boron-rare earth sintered magnet, and a diffusing step of performing heat treatment to diffuse metal atoms adhered to the surface into grain boundary phases of the sintered magnet. The metal evaporating material contains at least one of Nd and Pr.

Abstract: A magnetic head according to one embodiment includes a module, the module having first and second transducers of different transducer types positioned towards a media facing side of the module, wherein the different transducer types are selected from a group consisting of data reader transducers, servo reader transducers, write transducers, piggyback read-write transducers and merged read-write transducers; a first protection structure for protecting the first transducer; and wherein the second transducer has either no protection or is protected by a second protection structure that is different than the first protection structure.

Abstract: A method according to one embodiment includes applying a coating to a media facing side of a module, the module having first and second transducers of different magnetic transducer types positioned towards the media facing side of the module, wherein the different transducer types are selected from a group consisting of data reader transducers, servo reader transducers, write transducers, piggyback read-write transducers and merged read-write transducers; wherein the coating forms at least a portion of a first protection structure for protecting the first transducer; and wherein the second transducer has either no protection or is protected by a second protection structure that is different than the first protection structure.

Abstract: A disk processing system having a heater chamber and dual single-sided sputter chambers each with a sustaining heater.

Abstract: Provided is a radioactive substance collecting system and a radioactive substance collecting method which are capable of collecting radioactive substances with high efficiency. The radioactive substance collecting system according to the present invention removes radioactive substances (radioactive cesium 21) contained in a liquid (radioactive substances-contaminated water 20) and includes, as means for removing radioactive substances from the liquid, a radioactive substance trapping composite 1 including at least a magnetic particle 10 and a radioactive substance trapping compound 11 that traps radioactive substances, and magnetic accumulation means 30 for accumulating the radioactive substance trapping composite 1.

Abstract: A method for fabricating a synthetic antiferromagnetic device, includes depositing a reference layer on a first tantalum layer and including depositing a first cobalt iron boron layer, depositing a second cobalt iron boron layer on the first cobalt iron boron layer, depositing a second Ta layer on the second cobalt iron boron layer, depositing a magnesium oxide spacer layer on the reference layer and depositing a cap layer on the magnesium oxide spacer layer.

Abstract: An object of the present invention is to provide an R—Fe—B based sintered magnet having on a surface thereof a chemical conversion film with higher corrosion resistance than a conventional chemical conversion film such as a phosphate film, and a method for producing the same. The corrosion-resistant magnet of the present invention as a means for achieving the object is characterized by comprising a chemical conversion film containing at least Zr, Nd, fluorine, and oxygen as constituent elements and not containing phosphorus directly on a surface of an R—Fe—B based sintered magnet, wherein R is a rare-earth element including at least Nd.

Abstract: There is provided a method of producing an ?-Fe/R2TM14B-type nanocomposite magnet where R is 9 at. % or more but less than 11.76 at. % of Nd or Pr, TM is Fe or a substance in which a portion of Fe is substituted with Co of 20 at. % or less, and B is 6 to 8 at. %. A relatively long length nanocrystalline ribbon having a coercivity of 600 kA/m or more in which a content of flakes of less than 10 mm in length is 20% or less is coated with a polymeric film and then cut into an intended length, or punched into a specific shape.

Abstract: An apparatus and associated method provides a magnetic writing element that may have at least a write pole tuned to a predetermined first grain size with a cryogenic substrate temperature. A magnetic shield can be formed with a predetermined second grain size that is tuned with the cryogenic substrate temperature.

Abstract: This invention addresses the problem of providing an iron base soft magnetic powder for a powder magnetic core that does not use rare metals, that can maintain the electrical insulating properties between the iron powder particles even when subjected to high temperature thermal processing, and that has excellent thermal stability and mechanical strength. This invention also addresses the problem of providing a fabrication method for the iron base soft magnetic powder for the powder magnetic core, and providing the powder magnetic core. In this iron base soft magnetic powder for the powder magnetic core, a phosphatized coating film is formed on the surface of the iron base soft magnetic powder, and a silicon resin coating film is formed on the surface of the phosphatized coating film. The phosphatized coating film contains P, B, Mg, and Al.

Abstract: 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.

Abstract: A nanocomposite material for use as an electromagnetic wave or radio frequency absorber or as a filter to trap or remove heavy metals. The nanocomposite material may be made with a one-pot synthesis, or thermodecomposition process, of magnetic graphene nanocomposites decorated with core-double-shell nanoparticles, wherein the double shell iron nanoparticles may comprise a crystalline iron core, an inner iron oxide layer around the crystalline iron core, and an outermost amorphous Si—S—O compound shell around the iron oxide layer.

Abstract: A method of manufacturing a magnet from material powders made of a R—Fe—N compound that contains a rare earth element as R or material powders made of a Fe—N compound, includes: an oxide film bonding step in which a compact is formed by bonding the material powders to each other by oxide films formed on surfaces of the material powders; and a coating step in which a surface of the compact is covered with a coating film.

Abstract: A magnetic recording medium and related method of manufacturing a magnetic recording medium that has a protective layer for the magnetic recording medium and that exhibits excellent corrosion resistance in the protective layer. The magnetic recording medium includes on a nonmagnetic substrate a magnetic layer and a protective layer formed on the magnetic layer. The protective layer is formed of a lower layer in contact with the magnetic layer and an upper layer formed on the lower layer. The material used in the lower layer is a metal having a standard electrode potential of ?0.8 to 0.3 V.

Abstract: A process for producing a rare earth magnet comprises: an adhesion step of causing a diffusion element capable of diffusing inwardly to adhere to the surface part of a magnet material comprising a compact or sintered body of rare earth alloy particles; and an evaporation step of heating the magnet material in vacuum to evaporate at least a portion of the diffusion element having been retained on or in the surface part of the magnet material.

Abstract: A magnetic sheet system providing flexible magnetic sheets that are digitally printable on both sides and that serve as magnetic postcard stocks for production of customized magnetic postcards.

Abstract: A perpendicular magnetic recording disk having a single domain exchange-coupled laminated soft magnetic underlayer (SUL) is disclosed. The SUL is a combination synthetic anti-parallel coupled SUL structure, which has the product (Mst) of saturation magnetization and film thickness of the middle ferromagnetic layer less than the sum of the Mst of the bottom and top ferromagnetic layers. Subjected to a post radial field reset process, this SUL provides single domain state. Moreover, both robustness of stray fields and low permeability are obtained while keeping excellent corrosion resistance and cost effective manufacturability.

Abstract: A compound comprising a backbone with a perfluoropolyether chain. The compound also has one or more cyclophosphazene rings attached to or incorporated into the backbone. The compound further includes at least two functional groups attached to the backbone, attached to the one or more cyclophosphazene rings, or a combination thereof.

Abstract: A method of manufacturing a magnetic recording medium with high recording density and enabling stable flight of a magnetic head, with high manufacturing yields, is provided. The method includes layering a magnetic layer, a protective layer, and a lubricating layer in order on a substrate, and forming a medium for transfer. The method further includes transferring a magnetic pattern to the medium for transfer, and flattening a surface of the lubricating layer of the medium for transfer for which the magnetic pattern transferring is completed. The surface of the lubricating layer is flattened either by wiping the surface of the lubricating layer using a member without a cutting effect, or by heating the surface of the lubricating layer.

Abstract: In one embodiment, a magnetic recording medium includes a magnetic recording layer including a magnetic material characterized by having convex and concave portions, the convex portions acting as magnetic regions, a nonmagnetic material positioned within each concave portion of the magnetic material which act as nonmagnetic regions that separate the magnetic regions, an organic material layer which exhibits a corrosion-inhibiting characteristic with respect to cobalt or cobalt alloy positioned on a nonmagnetic region side of each concave portion, and an oxide layer and/or hydroxide layer positioned adjacent the organic material layer on a magnetic region side of each concave portion of the magnetic material. In another embodiment, the magnetic recording medium may be a patterned recording layer having a protective film, and the oxide layer and/or hydroxide layer may be positioned at least in defect portions of the protective film.

Abstract: A process for the preparation of carbon protected superparamagnetic or magnetic nanospheres is claimed which comprises the steps: (A) coating FexOy particles with an organic polymer, (B) coating the product obtained in step (A) with silica, (C) subjecting the product of step (B) to pyrolysis conditions, and (D) removing silica. According to present process, structurally stable carbon protected magnetic nanospheres were obtained, which can be dispersed in various solvents like water, EtOH, toluene, etc.

Abstract: A curable resin composition is provided which uses a fumarate copolymer which is excellent in thermal discoloration resistance as a binder component and is capable of forming details of a color filter. The curable resin composition of the present invention is a photocurable resin composition for forming a protective layer, RGB pixels, a black matrix or a spacer of a color filter, and contains as a binder component a fumarate copolymer having at least a molecular structure wherein a constituent unit represented by the following Formula 1 and a constituent unit having an acidic functional group(s) are linked, preferably further having a constituent unit with an ethylenically unsaturated bond: wherein, each of R1 and R2 is independently a branched C3-8 alkyl group which may be substituted, or a C4-8 cycloalkyl group which may be substituted.

Abstract: A magnetic disk according to one embodiment of the present invention includes a base material and a lubricant layer provided on or over a base material. The lubricant layer contains a rod-like ionic liquid crystal compound having a cation group and an anion group.

Abstract: In accordance with one embodiment, a method is disclosed that comprises disposing an antireflection material in juxtaposition with a top surface of a slider. In accordance with another embodiment, a method is disclosed that comprises disposing an antireflective material between a facet edge of a laser and an incident surface of a waveguide. In yet another embodiment, an apparatus is disclosed that comprises a slider and an antireflection material in juxtaposition with a top surface of the slider.

Abstract: Encapsulated particles and methods for manufacturing encapsulated particles and structures are described. Such particles may have a length no greater than 40 nm, and include at least one material selected from the group consisting of ferromagnetic materials and ferrimagnetic materials. A polymeric encapsulant surrounds the particle, the polymeric encapsulant including a phase-separated block copolymer including a glassy first phase and a rubbery second phase, the glassy first phase positioned between the particle and the second rubbery phase. The glassy first phase includes a hydrophobic copolymer having a glass transition temperature of at least 50° C. The rubbery second phase includes a polymer having at least one of (i) a glass transition temperature of no greater than 30° C., and (ii) a tan delta peak maximum of no greater than 30° C. Other embodiments are described and claimed.

Abstract: A rare earth sintered magnet as an anisotropic sintered body comprising Nd2Fe14B crystal phase as primary phase and having the composition R1aTbMcSidBe wherein R1 is a rare earth element inclusive of Sc and Y, T is Fe and/or Co, H is Al, Cu, Zn, In, P, S, Ti, V, Cr, Mn, Ni, Ga, Ge, Zr, Nb, Mo, Pd, Ag, Cd, Sn, Sb, Hf, Ta, or W, “a” to “e” are 12?a?17, 0?c?10, 0.3?d?7, 5?e?10, and the balance of b, wherein Dy and/or Tb is diffused into the sintered body from its surface.

Abstract: A manufacturing method of a soft magnetic material has a step of preparing a metal magnetic particle containing iron as the main component, and a step of forming an insulating film surrounding the surface of the metal magnetic particle. The step of forming the insulating film includes a step of mixing and stirring the metal magnetic particle, aluminum alkoxide, silicon alkoxide, and phosphoric acid.