Abstract: A magnetic recording medium, a manufacturing method thereof, and a magnetic recording/reproducing apparatus are provided, capable, with a configuration having a magnetic recording film only on one side, of suppressing warp occurrence, and obtaining a high quality and thin-type magnetic recording medium. When forming a recording layer having at least a magnetic recording film on one main surface of a substrate by means of a vapor-phase film forming method, a thin film is formed on the other main surface of the substrate using a vapor-phase film forming method. When the recording layer is formed as a multiple layer structure, the thin film is also formed as a multiple layer structure with the same number of laminations as for the recording layer 5, and layer pairs of the same lamination order as the recording layer and the thin film are preferably formed concurrently in the same chamber.

Abstract: According to one embodiment, a substrate for a magnetic recording media has circumferential protrusions corresponding to recording tracks and circumferential recesses corresponding to grooves between the recording tracks, in which the substrate satisfying at least one of conditions of (a) a surface of the recess has a surface energy smaller than that of the protrusion, (b) the surface of the recess is modified with a thermally decomposable or deformable substance, (c) the surface of the recess has surface roughness smaller than that of the protrusion, (d) crystal orientation is more disturbed on the surface of the recess than on the protrusion, (e) the surface of the recess is modified with a substance that causes reaction with a magnetic material or that diffuses into the magnetic material, and (f) the surface of the recess is modified with a substance soluble in a solvent or with a deformable substance.

Abstract: Disclosed is a pharmaceutical combination comprising a calcium receptor modulator and a bone resorption inhibitor, wherein the calcium receptor modulator comprises a compound represented by the formula (I): wherein the ring A represents a 5- to 7-membered ring which may be substituted; the ring B represents a 5- to 7-membered heterocyclic ring which may be substituted; X1 represents CR1 (wherein R1 represents a hydrogen, a hydrocarbon group which may be substituted, or the like) or the like; X2 represents N or the like; Y represents C or the like; Ar represents a cyclic group which may be substituted; R represents a hydrocarbon group which may be substituted, or the like; and represents a single bond or a double bond; or a salt thereof or a prodrug of the compound or the salt.

Abstract: The invention provides a magnetic recording medium, and a magnetic recording and reproducing apparatus. The magnetic recording medium includes a substrate 11, an under layer 12 formed on the substrate 11, a magnetic recording layer 13 formed on the under layer 12, and a protective layer 14 formed on the magnetic recording layer 13. The magnetic recording layer 13 is composed of a primary recording layer 14 and a secondary recording layer 15 which are mutually exchange-coupled. The primary recording layer 14 has magnetic grains and a nonmagnetic material that surrounds the magnetic grains, and has a perpendicular magnetic anisotropy. The secondary recording layer 15 is made of a material having a negative crystal magnetic anisotropy and its easy plane of the magnetization is a plane of the medium.

Abstract: The invention provides a perpendicular magnetic recording medium for use in a hard disk drive or a similar apparatus, a method for producing the perpendicular magnetic recording medium, and a magnetic recording and reproducing apparatus. The recording medium has excellent recording and reproducing characteristics and includes at least a non-magnetic substrate, an alignment control layer a perpendicular magnetic layer in which easy-magnetization axes are oriented in a direction virtually normal to a substrate, and a protective layer. The perpendicular magnetic layer containing Co as a predominant component, is formed of at least a first perpendicular magnetic layer formed predominantly from a material containing at least Cr, Pt, and a metal oxide or a semiconductor oxide, a second perpendicular magnetic layer formed predominantly from a CoCr alloy, and a third perpendicular magnetic layer formed predominantly from a CoCrPtB-based alloy.

Abstract: According to one embodiment, a magnetic recording media includes a substrate having recording tracks and separating regions separating the recording tracks, the separating regions having patterns of protrusions and recesses formed therein, and a recording film deposited on the substrate, in which a difference in height between a top of the recording track and a top of the separating region is 2 nm or more and 7 nm or less, and a difference in height between the top of the recording track and a bottom of the separating region is 10 nm or more.

Abstract: The invention provides a perpendicular recording medium with high recording density, and a magnetic recording and reproducing apparatus, by improving the function of magnetic anisotropy of a soft magnetic underlayer. The perpendicular recording medium has at least a soft magnetic underlayer and a perpendicular magnetic recording layer on a non-magnetic substrate, wherein when Ku? (erg/cm3) is defined as a perpendicular magnetic anisotropic energy, and Ms (emu/cm 3) is defined as a saturation magnetization of the soft magnetic underlayer, Ku? of the soft magnetic underlayer has a negative value and Ku?<?2?Ms2. As a result, the easy axis of a magnetization of a soft magnetic underlayer is oriented strongly in the substrate surface plane, which is effective to suppress the WATE phenomena and spike noise.

Abstract: The present invention is characterized by the fact that a non-magnetic substrate 11, target members 12, and magnetic plates 21 are placed in parallel in a film-forming apparatus 10, a high frequency voltage is applied to the target members, the opposite polarities alternately occur at equal intervals on the surfaces of the magnetic plates, and plasma is produced near the target members to deposit a thin film on the non-magnetic substrate by sputtering. The present invention can greatly increase the track density and, accordingly, the surface recording density while maintaining the recording/reproduction properties equal to or better than that of the prior art.

Abstract: A production process of magnetic recording media is provided in which, when using an oxide magnetic material as a perpendicular magnetic recording layer and forming a carbon protective layer using a plasma CVD method, stripping of the carbon protective layer and separation of a lubrication layer can be prevented, and satisfactory recording and reproduction characteristics can be obtained.

Abstract: Perpendicular magnetic recording media enabling high-density recording and reproduction of information, as well as a production process thereof, and a magnetic recording and reproducing apparatus, are provided. Perpendicular magnetic recording media, having at least a soft magnetic underlayer and perpendicular magnetic recording layer on a disc-shaped nonmagnetic substrate, in which the soft magnetic underlayer has at least two soft magnetic layers, and Ru or Re between the two soft magnetic layers, are provided; the easy axis of magnetization of the soft magnetic underlayer has a desired direction; the easy axis of magnetization of the soft magnetic underlayer is substantially distributed in a direction except a radial direction of the nonmagnetic substrate, and, the bias magnetic field of the antiferromagnetic coupling in the direction of the easy axis of magnetization of the soft magnetic underlayer is 10 Oersteds (790 A/m) or greater.

Abstract: A refrigeration system to increase the subcooling degree of refrigerant flowing through a main refrigerant circuit is provided. The refrigeration system is configured such that a portion of the refrigerant flowing through the main refrigerant circuit can be made to bypass the remainder of the main refrigerant circuit in a bypass refrigerant circuit so as to be returned to the intake side of a compressor and to be used to cool the refrigerant flowing through the main refrigerant circuit to a subcooled state.

Abstract: A specification plan of an order-made product suitable for a building structure plan is generated promptly. A WWW server 11 and a database server 12 are provided to the equipment designer's side. The database server 12 has a drawing database 9 that registers a CAD symbol for each product. A CAD symbol for each product includes: effective space information, which expresses a space to be secured for installation of the product; product name information expressing a name of the product; structure information expressing structural features (size, shape, etc.); product specification information; option data; etc. On the other hand, WWW server 11 has a symbol generation data interface 3, through which requirements specification data for an order-made product can be received from a WWW client terminal 2, and a CAD symbol of the order-made product can be taken out from the side of the WWW client terminal.

Abstract: One object of the present invention is to provide a perpendicular magnetic recording medium having a high coercive force by annealing, and in order to achieve the object, the present invention provides a method for manufacturing a perpendicular magnetic recording medium comprising a magnetic recording layer deposited on a non-magnetic substrate, in which at least a magnetic layer containing Co and a diffusive layer are stacked each other, and the stacked layers are annealed to produce a magnetic recording layer.

Abstract: According to one embodiment, a method for manufacturing a substrate for a discrete track recording media, the method includes forming an imprint resist layer on a substrate, imprinting, on the imprint resist layer, a stamper formed with patterns of protrusions and recesses corresponding to recording track zones and servo zones to transfer the patterns of protrusions and recesses to the imprint resist layer, removing the stamper from the imprint resist layer, and diffusing liquefied CO2 in a process chamber set at a pressure of 2 to 5 atm, diffusing liquefied H2O in the process chamber set at a pressure of 0.01 to 1 atm, or diffusing a reactive gas selected from a group consisting of liquefied CF4, CHF3, SF6, and C2F6 in the process chamber set at an arbitrary pressure, to jet spray the liquefied gas onto a surface of the substrate.

Abstract: In order to increase a surface recording density by greatly increasing a track density with maintaining a recording and reproducing property which is not less than that of the prior art, a nonmagnetic substrate 11, target materials 12, and magnetic plates 21 are positioned in parallel in a thin-film coating apparatus 10. A high-frequency voltage is applied to the target materials, and different polarities spaced uniformly on the surfaces of the magnetic plates are alternately generated. A sputtering gas is introduced into the thin-film coating apparatus to generate plasma around the target materials. A thin layer is formed on the nonmagnetic substrate by a sputtering method.

Abstract: The invention provides a perpendicular magnetic recording medium in which the recording density is greatly increased with little deviation of the crystal structure. A perpendicular magnetic recording medium has at least a soft magnetic under layer, an orientation control layer, a perpendicular magnetic layer, and a protective layer, which are formed on a nonmagnetic substrate, the orientation control layer consisting of a plurality of layers including a seed layer and an intermediate layer from the substrate side. Preferably, the seed layer and the intermediate layer each have a hexagonal close-packed (hcp) structure, and the average grain size of the seed layer is between 8 nm and 20 nm. The main component of the seed layer is preferably Mg, and the main component of the intermediate layer is preferably Ru.

Abstract: A specification plan of an order-made product suitable for a building structure plan is generated promptly. A WWW server 11 and a database server 12 are provided to the equipment designer's side. The database server 12 has a drawing database 9 that registers a CAD symbol for each product. A CAD symbol for each product includes: effective space information, which expresses a space to be secured for installation of the product; product name information expressing a name of the product; structure information expressing structural features (size, shape, etc.); product specification information; option data; etc. On the other hand, WWW server 11 has a symbol generation data interface 3, through which requirements specification data for an order-made product can be received from a WWW client terminal 2, and a CAD symbol of the order-made product can be taken out from the side of the WWW client terminal.

Abstract: A specification plan of an order-made product suitable for a building structure plan is generated promptly. A WWW server 11 and a database server 12 are provided to the equipment designer's side. The database server 12 has a drawing database 9 that registers a CAD symbol for each product. A CAD symbol for each product includes: effective space information, which expresses a space to be secured for installation of the product; product name information expressing a name of the product; structure information expressing structural features (size, shape, etc.); product specification information; option data; etc. On the other hand, WWW server 11 has a symbol generation data interface 3, through which requirements specification data for an order-made product can be received from a WWW client terminal 2, and a CAD symbol of the order-made product can be taken out from the side of the WWW client terminal.

Abstract: According to one embodiment, a multilayered underlayer including a first underlayer containing Cu aligned in a (111) plane and a second underlayer formed on the Cu underlayer and containing Cu and nitrogen as main components is formed.

Abstract: According to one embodiment, a patterned substrate used for a magnetic recording media having discrete tracks includes patterns of protrusions and recesses processed thereon, and a texture structure formed on each of the recesses.