Abstract: An aspect of the present invention relates to a magnetic recording medium, which comprises a nonmagnetic layer comprising nonmagnetic powder and binder on a nonmagnetic support, and a magnetic layer comprising ferromagnetic powder and binder on the nonmagnetic layer, wherein the magnetic layer further comprises carbon black, and a state in which the carbon black is present, as observed in a reflection electron image of a surface of the magnetic layer obtained by a scanning electron microscope, satisfies condition 1 and condition 2 below: condition 1: a number of carbon black particles with a particle size of greater than or equal to 140 nm is greater than or equal to 30 per 1,000 ?m2 of area; and condition 2: a number of carbon black particles with a particle size of greater than or equal to 220 nm is less than or equal to 10 per 1,000 ?m2 of area.

Abstract: A magnetic recording medium includes a nonmagnetic substrate and at least a magnetic layer, a protective layer, and a lubricating layer provided on the nonmagnetic substrate. The magnetic recording medium is characterized in that the lubricating layer is formed of a lubricating agent represented by general formulas (1), (2) or (3), in which substituents R1, R2, R3, and R4 in the lubricating agent represent organic groups, at least one of the substituents R1 and R2 at the end part of the lubricating agent and the substituents R3 and R4 contain a plurality of functional groups, and the shortest distance between the functional groups is a distance of three or more atoms, preferably five atoms. The magnetic recording medium may be used for a heat assisted recording method in which the temperature of the magnetic layer reaches 150° C. to 200° C.

Abstract: A magnetic stack includes a interlayer structure and a magnetic recording layer disposed over the interlayer in the magnetic stack. The magnetic recording layer includes substantially ordered L10, <001> oriented crystalline magnetic grains laterally separated by a nonmagnetic, segregant material. The interlayer structure comprises a first layer having cubic crystal structure including <100> oriented crystalline grains and a second layer having crystalline grains laterally separated by a segregant material. The crystalline grains of the second layer are arranged in substantially vertically contiguous alignment with the crystalline grains of the first layer and the segregant material of the magnetic recording layer is arranged in substantially vertically contiguous alignment with the segregant material of the second layer.

Abstract: The magnetic tape comprises, on a nonmagnetic support, a nonmagnetic layer comprising nonmagnetic powder and binder, and on the nonmagnetic layer, a magnetic layer comprising ferromagnetic powder, nonmagnetic powder, and binder, wherein a total thickness of the magnetic tape is less than or equal to 4.80 ?m, and a coefficient of friction as measured on a base portion of a surface of the magnetic layer is less than or equal to 0.35.

Abstract: A perpendicular recording medium with enhanced magnetic stability. In accordance with some embodiments, a multi-layer recording structure is formed on a base substrate and adapted to magnetically store a magnetic bit sequence in domains substantially perpendicular to said layers. A thin magnetic stabilization layer is formed on the multi-layer recording substrate to magnetically stabilize an upper portion of the recording structure.

Abstract: The magnetic recording medium comprises a magnetic layer comprising ferromagnetic powder and binder on a nonmagnetic support, and further comprises a compound denoted by Formula (1): wherein, in Formula (1), X denotes —O—, —S—, or NR1—; each of R and R1 independently denotes a hydrogen atom or a monovalent substituent; L denotes a divalent connecting group; Z denotes a partial structure of valence n comprising at least one group selected from the group consisting of carboxyl groups and carboxylate groups; m denotes an integer of greater than or equal to 2, and n denotes an integer of greater than or equal to 1.

Abstract: Provided is a flame retardant resin composition including a base resin, calcium carbonate particles that are incorporated at a proportion of 10 parts by mass or more relative to 100 parts by mass of the base resin, a silicone-based compound that is incorporated at a proportion of more than 1 part by mass relative to 100 parts by mass of the base resin, and a fatty acid-containing compound that is incorporated at a proportion of more than 3 parts by mass relative to 100 parts by mass of the base resin. The average particle size of the calcium carbonate particles is 0.7 ?m or larger.

Abstract: The present invention provides a conjugated fiber suitable for use as a crimped fiber capable of producing an artificial leather having highly dense texture and good quality. The present invention also provides a base body for an artificial leather and an artificial leather produced by using such conjugated fiber. The conjugated fiber of the present invention includes a conjugated fiber comprising a readily soluble polyester component and a less readily soluble component, and the readily soluble polyester component comprises a copolymerized polyester having 5 to 10% by mole of 5-sodium sulfoisophthalate copolymerized therewith and the readily soluble polyester component contains a polyalkylene glycol. The polyalkylene glycol is in the form of streaks extending in longitudinal direction of the fiber in the longitudinal cross section of the conjugated fiber.

Abstract: The magnetic tape comprises a nonmagnetic layer comprising nonmagnetic powder and binder on a nonmagnetic support, and comprises a magnetic layer comprising ferromagnetic powder and binder on the nonmagnetic layer, wherein a fatty acid ester, a fatty acid amide, and a fatty acid are contained in either one or both of the magnetic layer and the nonmagnetic layer, with the magnetic layer and nonmagnetic layer each comprising at least one selected from the group consisting of a fatty acid ester, a fatty acid amide, and a fatty acid, a quantity of fatty acid ester per unit area of the magnetic layer in extraction components extracted from a surface of the magnetic layer with n-hexane falls within a range of 1.00 mg/m2 to 10.

Abstract: A magnetic recording medium includes a substrate, multiple underlayers formed on the substrate, and a magnetic layer formed on the multiple underlayers. A main component of the magnetic layer is an alloy having a L10 structure. At least one of the multiple underlayers is a crystalline underlayer containing W. The W is a main component of the crystalline underlayer. The crystalline underlayer further contains 1 mol % or more to 20 mol % or less of one or more kinds of elements selected from B, Si, and C. A barrier layer including a material having a NaCl structure is formed between the crystalline underlayer and the magnetic layer.

Abstract: According to one embodiment, a magnetic recording medium includes a substrate, an underlayer positioned above the substrate, a magnetic recording layer positioned above the underlayer, and a plurality of conductive polymers dispersed within at least one of the substrate, the underlayer and the magnetic recording layer.

Abstract: Hexagonal ferrite magnetic particles have an activation volume ranging from 1,000 nm3 to 1,500 nm3, and ?E10%/kT, thermal stability at 10% magnetization reversal, is equal to or greater than 40.

Abstract: A magnetic stack includes a substrate and a magnetic recording layer disposed over the substrate. The magnetic recording layer comprises magnetic crystalline grains and a segregant disposed between grain boundaries of the crystalline grains. One or both of the magnetic crystalline grains and the segregant are doped with a rare earth or transition metal dopant in an amount that provides the magnetic recording layer with a magnetic damping value, ?, between about 0.1 to about 1.

Abstract: An aspect of the present invention relates to a magnetic recording medium, which comprises magnetic layer comprising ferromagnetic powder and binder on a nonmagnetic support, wherein the ferromagnetic powder is ferromagnetic hexagonal ferrite powder, the ferromagnetic hexagonal ferrite powder has an activation volume ranging from 800 nm3 to 1,300 nm3, and 1 percent to 50 percent of particles constituting the ferromagnetic hexagonal ferrite powder are ferromagnetic hexagonal ferrite particles, each of which has an indentation with a depth of equal to or more than 1/10 of an equivalent projected circle diameter of the ferromagnetic hexagonal ferrite particle.

Abstract: A magnetic recording medium of the present invention is a magnetic recording medium including a non-magnetic substrate; a non-magnetic layer that is formed on one of principal surfaces of the non-magnetic substrate and contains a non-magnetic powder, a binder, and a lubricant; and a magnetic layer that is formed on a principal surface of the non-magnetic layer opposite to the non-magnetic substrate and contains a magnetic powder and a binder. The magnetic powder has an average particle size between 10 nm and 35 nm inclusive. The lubricant is migratable to the magnetic layer and forms a lubricant layer on a surface of the magnetic layer when a pressure is applied to the magnetic layer. When spacing of the surface of the magnetic layer before and after washing the lubricant with n-hexane is measured with a TSA (Tape Spacing Analyzer), the value of the spacing after washing is 3 to 10 nm, and the value of the spacing before washing is 1 to 5 nm smaller than the value of the spacing after washing.

Abstract: An aspect of the present invention relates to a magnetic recording medium, which comprises a magnetic layer comprising ferromagnetic powder and binder on a nonmagnetic support, wherein the magnetic layer further comprises a compound which has a weight average molecular weight of equal to or more than 1,000 but less than 20,000 and is denoted by formula (1): wherein, in formula (1), A1 denotes a monovalent polymer group, each of R1 and R2 independently denotes a single bond or a divalent connecting group, R11 denotes a hydrogen atom or a monovalent substituent, m denotes an integer of equal to or greater than 2, multiple instances of R1, R2, A1, and R11 that are present can be identical or different, A2 denotes a hydrogen atom or a monovalent substituent denoted by —OR3—Z, R3 denotes a single bond or a divalent connecting group, Z denotes a monovalent acid group, among multiple instances of A2 that are present, at least one denotes a monovalent group denoted by —O—R3—Z, and X denotes a connecting group of

Abstract: An aspect of the present invention relates to hexagonal ferrite powder, which comprises equal to or more than 70% on a particle number basis of isotropic hexagonal ferrite particles satisfying equation (1): major axis length/minor axis length<2.0??(1), having an average particle size of equal to or greater than 10.0 nm but equal to or less than 35.0 nm, and having a saturation magnetization of equal to or greater than 30 A·m2/kg.

Abstract: A laminating structure includes a first magnetic layer, a second magnetic layer, a first spacer disposed between the first and second magnetic layers and a second spacer disposed on the second magnetic layer.

Abstract: A stack includes a substrate and a magnetic recording layer. Disposed between the substrate and magnetic recording layer is an MgO—Ti(ON) layer.

Abstract: A method of forming a uniform thickness layer of a selected material on a surface of a substrate comprises steps of: (a) providing a multi-stage cathode sputtering apparatus comprising a group of spaced-apart cathode/target assemblies and a means for transporting at least one substrate/workpiece past each cathode/target assembly, each cathode/target assembly comprising a sputtering surface oriented substantially parallel to the first surface of the substrate during transport past the group of cathode/target assemblies, the group of cathode/target assemblies adapted for providing different angular sputtered film thickness profiles; and (b) transporting the substrate past each cathode/target assembly while providing different sputtered film thickness profiles from at least some of the cathode/target assemblies, such that a plurality of sub-layers is deposited on the surface of the substrate/workpiece which collectively form a uniform thickness layer of the selected material.