Abstract: Texturing slurry for texturing a substrate for a magnetic hard disk is obtained by dispersing abrading particles of a specified kind in a specified kind of dispersant. The abrading particles include diamond clusters formed with artificial diamond particles with primary particle diameter of 20 nm or less and surrounded by impurities containing chlorine at a certain ratio. The cluster diameter and the average cluster diameter of the diamond clusters are each within a specified range. For texturing a substrate surface, the substrate is rotated, texturing slurry of this invention is supplied to the surface and a texturing tape of a specified kind is pressed against the substrate surface while it is caused to run.

Abstract: The medical image processing apparatus according to the present invention includes an image compressing unit for compressing a medical image with either a first image compressing method or a second image compressing method; a record direction input setting unit for allocating a first record directing section that is capable of performing a first direction for compressing the medical image with the first image compressing method and a second record directing section that is capable of performing a second direction for compressing the medical image with the second image compressing method; and a controlling unit for outputting the medical image that is compressed with the first image compressing method to an image recording unit in response to detection of the first direction and outputting the medical image that is further compressed with the second image compressing method to the image recording unit in response to detection of the second direction.

Abstract: A disk processing device holds and rotates a disk with a spindle. Processing tapes are supplied out and wound up by a tape reel unit so as to sandwich and be pressed on both surfaces of the disk through contact rollers. As a crankshaft is rotated, a sliding plate rotates around it and a slidable shaft rotates around a fulcrum part while sliding along the sliding plate such that the contact roller undergoes a reciprocating motion in a radial direction of the disk together with a slider rotatably attached to the slidable shaft.

Abstract: A method of texturing a surface of a magnetic hard disk substrate includes the steps of rotating the magnetic hard disk substrate, supplying polishing slurry on the surface of the substrate, and pressing a polishing tape on the substrate surface and running the polishing tape. The polishing slurry includes abrading particles of monocrystalline diamond that are cluster particles with corners having diameters in the range of 1-10 nm, dispersed in a dispersant such as water and a water-based aqueous solution. The cluster particles are tasseled assemblies of crystalline particles with no directionality.

Abstract: Diamond clusters are used as a polishing material of free abrading particles, each being a combination of artificial diamond particles having primary particle diameters of 20 nm or less and impurities that are attached around these diamond particles. The density of non-diamond carbon contained in the impurities is in the range of 95% or more and 99% or less, and the density of chlorine contained in other than non-diamond carbon in the impurities is 0.5% or more and preferably 3.5% or less. The diameters of these diamond clusters are in the range of 30 nm or more and 500 nm or less, and their average diameter is in the range of 30 nm or more and 200 nm or less. Such polishing material is produced first by an explosion shock method to obtain diamond clusters and then removing the impurities such that density of non-diamond carbon contained in the impurities and density of chlorine contained in other than non-diamond carbon in the impurities become adjusted.

Abstract: A polishing cloth to be produced has a surface layer stacked over a base material. The surface layer is made of a foamed layer and a non-foamed layer, the foamed layer including air bubble cells and the non-foamed layer having an externally exposed surface where linear cuts are formed. These linear cuts reach the air bubble cells such that the air bubble cells communicate with the exterior through the linear cuts. These linear cuts are controlled to be 10 ?m or less in length. Such a polishing cloth is produced by applying a foamable coating material such as a foamable resin over a surface of the base material, foaming the foamable coating material to form the surface layer, and forming the linear cuts through the non-foamed layer.

Abstract: Polishing slurry for texturing the surface of a magnetic hard disk substrate has abrading particles with diameters in the range of 1-10 nm dispersed in a dispersant such as water and a water-based aqueous solution. The abrading particles may be monocrystalline diamond particles, polycrystalline diamond particles or cluster particles with monoerystalline and polycrystalline diamond particles.

Abstract: Texturing slurry for texturing a substrate for a magnetic hard disk is obtained by dispersing abrading particles of a specified kind in a specified kind of dispersant. The abrading particles include diamond clusters formed with artificial diamond particles with primary particle diameter of 20 nm or less and surrounded by impurities containing chlorine at a certain ratio. The cluster diameter and the average cluster diameter of the diamond clusters are each within a specified range. For texturing a substrate surface, the substrate is rotated, texturing slurry of this invention is supplied to the surface and a texturing tape of a specified kind is pressed against the substrate surface while it is caused to run.

Abstract: A polishing cloth to be produced has a surface layer stacked over a base material. The surface layer is made of a foamed layer and a non-foamed layer, the foamed layer including air bubble cells and the non-foamed layer having an externally exposed surface where linear cuts are formed. These linear cuts reach the air bubble cells such that the air bubble cells communicate with the exterior through the linear cuts. These linear cuts are controlled to be 10 ?m or less in length. Such a polishing cloth is produced by applying a foamable coating material such as a foamable resin over a surface of the base material, foaming the foamable coating material to form the surface layer, and forming the linear cuts through the non-foamed layer.

Abstract: A polishing cloth has a surface layer stacked over a base material. The surface layer is made of a foamed layer and a non-foamed layer, the foamed layer including air bubble cells and the non-foamed layer having an externally exposed surface where linear cuts are formed. These linear cuts reach the air bubble cells such that the air bubble cells communicate with the exterior through the linear cuts. These linear cuts are controlled to be 10 ?m or less in length.

Abstract: On the basis of an information managing database configured to store information on a plurality of multimedia contents stored by a content memory of an information reproducing apparatus and information on multimedia contents stored by an information memory of an information managing apparatus, a content managing unit of the information managing apparatus extracts from the information memory contents acquired by the information reproducing apparatus that are types reproducible by a content reproducing unit of the information reproducing apparatus but that are not stored in the content memory of the information reproducing apparatus from among the contents stored in the information memory, and transmits to the information reproducing apparatus all of the extracted contents or a part of contents which is selected by user from among the extracted contents.

Abstract: When a processing including transmission, reception, and/or deletion of content data is performed, a play count detecting unit detects play count of the content data stored in a portable terminal from a time when previous processing has been performed to a time when current processing has been performed, by comparing a first database with a third database, the first database managing play count of content data stored in an information processing apparatus and the third database managing play count of content data stored in the portable terminal. A first update unit reflects in the first database the detected play count. A second database which maintains play count every time the processing is performed is updated by a second update unit based on the first database in which play count has been updated by the first update unit. A third update unit updates the third database based on the second database.

Abstract: Texturing line marks are formed clearly and uniformly over a surface of a glass substrate for a magnetic hard disk such that there will be no abnormal protrusions exceeding 100 ? and the line density will be 30 lines/?m or more by rotating the glass substrate, supplying slurry on the surface of the glass substrate and pressing a processing tape on the surface of the glass substrate and running the processing tape. The slurry includes abrading particles of an artificial diamond material produced by a shock method and dispersed in a dispersing medium. The abrading particles include primary particles that are artificial diamond particles with average diameter 1 nm-20 nm and cluster particles with secondary particles that are artificial diamond particles with average diameter 0.05 ?m-0.20 ?m. The dispersing medium of the slurry includes water and an additive that contains higher aliphatic amide and two or more selected from the group consisting of glycol compounds, organic phosphates and surfactants.

Abstract: A magnetic hard disk substrate is produced by rotating an aluminum substrate or a glass substrate, supplying polishing slurry on its surface, pressing a polishing tape on the surface and running it in a direction opposite to the direction of rotation of the substrate. Texturing marks are formed with a line density greater than 70 lines/?m in the radial direction on the surface. The polishing slurry has abrading particles dispersed in a dispersant. The abrading particles may be monocrystalline diamond particles, polycrystalline diamond particles or cluster particles with such monocrystalline and polycrystalline diamond particles with diameters in the range of 1-50 nm. Agglomerated particles of such cluster particles that are agglomerated in the dispersant may also be included as the abrading particles.

Abstract: A magnetic hard disk substrate is produced by rotating an aluminum substrate or a glass substrate, supplying polishing slurry on its surface, pressing a polishing tape on the surface and running it in a direction opposite to the direction of rotation of the substrate. Texturing marks are formed with a line density greater than 70 lines/?m in the radial direction on the surface. The polishing slurry has abrading particles dispersed in a dispersant. The abrading particles may be monocrystalline diamond particles, polycrystalline diamond particles or cluster particles with such monocrystalline and polycrystalline diamond particles with diameters in the range of 1-50 nm. Agglomerated particles of such cluster particles that are agglomerated in the dispersant may also be included as the abrading particles.

Abstract: A glass substrate for perpendicular magnetic recording, having a surface with an average surface roughness of 2.0 ? or less and surface height variations of 1 ? or less with wavelengths in the range of 0.05 mm-0.5 mm in both radial and circumferential directions, is produced by rotating a glass substrate, supplying polishing slurry containing a specified amount of abrading particles of artificial diamond on its surface, pressing a polishing tape on the surface and causing this polishing tape to travel in a direction opposite to the direction of rotation of the glass substrate.

Abstract: A foamed polishing sheet for use in a free particle polishing method using abrading particles with average particle diameter less than 0.1 ?m is produced by applying a foaming paint of a foaming resin on a surface of a form-providing film such as a plastic film, foaming the foaming paint by a wet foaming method to form a foamed sheet on the surface of the form-providing film, and peeling off the foamed sheet from the form-providing film so as to form a polishing surface on the foamed sheet having the same shape as the surface of the form-providing film.

Abstract: A polishing cloth has a base material of a woven cloth formed by weaving in woven bundles of plastic fibers and its surface layer is formed by portions of these woven bundles which are cut and raised from a surface. When such a polishing cloth is used for texturing a target surface of a disk substrate, the target surface is rubbed by such a cloth while a liquid slurry containing free abrasive particles are supplied to the surface.

Abstract: A network system is structured by connecting on a network a plurality of storage devices and a DSC, and directly copies image data picked-up by the DSC. The storage device includes in front thereof LEDs for displaying that the operation is OK including a Power LED and a Ready LED, LEDs for displaying the operating situations including a Busy LED and an Error LED, and an LED dedicated for displaying whether or not a functional switch of the DSC selects an operating target.

Abstract: A magnetic hard disk substrate is produced by rotating an aluminum substrate or a glass substrate, supplying polishing slurry on its surface, pressing a polishing tape on the surface and running it in a direction opposite to the direction of rotation of the substrate. Texturing marks are formed with a line density greater than 70 lines/&mgr;m in the radial direction on the surface. The polishing slurry has abrading particles dispersed in a dispersant. The abrading particles may be monocrystalline diamond particles, polycrystalline diamond particles or cluster particles with such monocrystalline and polycrystalline diamond particles with diameters in the range of 1-50 nm. Agglomerated particles of such cluster particles that are agglomerated in the dispersant may also be included as the abrading particles.