Abstract: A magnetic disk is provided which comprises a nonmetallic glass or glass ceramic substrate having one or more under layers, a magnetic layer applied over the under layers, and a hard carbon layer applied over the magnetic layer. A plurality of bumps are formed on the magnetic disk by applying a beam from a near infrared wavelength laser to the surface of the carbon layer.

Abstract: An exchange coupling film has an antiferromagnetic layer made of an antiferromagnetic material containing an element X and Mn, where the element X is selected from the group of elements consisting of Pt, Pd, Ir, Rh, Ru, and Os, and combinations thereof. The antiferromagnetic layer has a region in which the ratio of the atomic percent of the element X to Mn increases towards said ferromagnetic layer. The crystalline structure of at least part of said antiferromagnetic layer has a CuAu—I type face-centered square ordered lattice.

Abstract: The present invention is directed to a release composition for molds and formers used in the production of natural and synthetic latex articles. The release coating contains a water-borne, high Tg polymer formed from at least one hydrophobic monomer and at least one hydrophilic monomer, where the Tg of the polymer is at least −10° C. One advantage of the release composition is that it is compatible with a coagulant solution used in the formation of latex gloves. Articles formed using the release coating have good anti-blocking properties.

Abstract: A perpendicular magnetic recording medium has a nonmagnetic substrate having concave portions and a soft magnetic layer on the nonmagnetic substrate. The depth of the concave portion and the thickness of the soft magnetic layer are larger than at least the length and the width of the concave portion such that the easy axis of magnetization in the regions of the soft magnetic layer in the concave portions is oriented perpendicular to the soft magnetic layer due to shape magnetic anisotropy. The easy axis of magnetization oriented perpendicular to the soft magnetic layer facilitates signal generation. The recording medium does not use the magnetization of the magnetic recording layer for such signal generation, which can be head positioning signals or other signals, such as copyright data. Instead, it uses the magnetization in the concave regions of the soft magnetic layer for such signal generation.

Abstract: The composite material and methods of making the present invention rely upon a fully dense monolayer of molecules attached to an oxygenated surface at one end, and an organic terminal group at the other end, which is in turn bonded to a polymer. Thus, the composite material is a second material chemically bonded to a polymer with fully dense monolayer there between.

Abstract: A method of manufacturing a magnetic recording medium including a servo pattern, comprising steps of: (a) providing a non-magnetic substrate including at least one major surface; (b) providing a stamper having a surface with a plurality of recesses forming a negative image of a servo pattern; (c) forming a layer of a partially dried sol-gel material having a first surface in conformal contact with the recess-patterned surface of the stamper and an exposed second surface opposite the first surface; (d) urging the major surface of the substrate into contact with the exposed second surface of the sol-gel layer; (e) removing the stamper from contact with the layer of sol-gel material to expose the recess-patterned surface thereof; (f) converting the partially dried sol-gel layer to a glass-like layer while preserving the recess pattern in the surface thereof; and (f) forming on the recess-patterned surface a laminate of layers constituting a servo-patterned magnetic recording medium.

Abstract: The present invention provides a sputtering target for production of a magnetic recording medium including at least a nonmagnetic undercoat layer, a magnetic layer, and a protective layer laminated sequentially on a nonmagnetic substrate, the sputtering target being used for film formation of the magnetic layer, the sputtering target comprising a mixture of a metal and an oxide, and the particle diameter of the oxide in the sputtering target being 10 &mgr;m or less. The sputtering target suppresses abnormal discharge occurring during film formation of a granular magnetic layer of the magnetic recording medium, and suppresses occurrence of foreign objects on the magnetic recording medium.

Abstract: Troubles caused by contaminants in a magnetic disk apparatus are prevented by providing a monofunctional compound in a gas phase in the magnetic disk apparatus, said compound capable of undergoing polymerization reaction with hydroxyl groups present on the protective overcoat surfaces of a magnetic head and a magnetic disk and further capable of reacting with contaminants, thereby attaining a high reliability of the magnetic disk apparatus.

Abstract: A magnetoresistive element includes an insulating layer formed between electrode layers, and the electrode layers are formed on a multilayer film so as to be in contact with the sides of the insulating layer. The thickness of the electrode layers can therefore be kept thick even at front end faces and a sensing current can flow into the multilayer film always at a constant level.

Abstract: A high frequency, low loss, power, composite magnetic material includes alternating magnetic plates of low hysteresis loss material and electrically insulating films. The multi-layer structure allows for independently and simultaneously controlling and reducing hysteresis loss and eddy current loss, and maintaining a high resistivity, while operating at high frequencies and at high flux density levels, resulting in extremely low net loss density for the composite material. Methods of making this material include co-firing of the magnetic plates and thin insulating films, making the magnetic plates (of low hysteresis material, such as a ferrite) and insulating films separately, and using heat and/or pressure and/or adhesive or making a stack of magnetic plates with spacers in between them and dipping in a molten or liquid insulating material.

Abstract: An improved stabilization scheme for a GMR read head is described. Two important changes relative to prior art designs have been introduced. Instead of biasing by means of a permanent magnet or through exchange coupling with an antiferromagnetic layer, the magnetostatic field emanating from a nearby, but not contiguous, layer is used. Additionally, to obtain optimum stability with this scheme the bias, instead of running parallel to the easy axis of the free layer, is canted away from it towards the direction of the demagnetizing field of the pinned layer. A process for the manufacture of the structure is also described.

Abstract: An article adapted to be utilized in the production of optically variable ink comprised of a flexible insoluble web, a release lever formed on the web and an optically variable multilayer thin film interference stack disposed on the release layer and which provides a color shift between two predetermined uniform colors. The interference stack includes an opaque reflective layer which has first and second surfaces and at least one period on each said first and second surfaces to provide the same color shift from each of said first and second surfaces between said two predetermined uniform colors at two different angles of incident light. Each period is comprised of a dielectric layer and a semi-opaque layer.

Abstract: A method of manufacturing luminescent screens (2) for, e.g., color picture tubes is described. It uses a printing apparatus with heated printing blocks (3) and tampons (4). The printing inks (D) consist of a mixture of a hot-melt adhesive and the respective luminescent materials. The printing inks are printed from the printing blocks directly on the inside of the faceplate (1) of the color picture tube. It is also possible to first print a black matrix (M) of a ceramic glass color.

Abstract: A transfer for use with automatic offset application equipment comprises a backing paper, release layer, design layer and covercoat layer, in which the covercoat layer is formed from a heat-activatable adhesive and extends over an area greater than that of the design layer. Preferably the design layer also has heat-activatable adhesive properties. Such transfers are especially for use with enamel printing inks for the decoration of ceramic ware. In use, a heated platen is used to melt the release layer and a heated pressure pad is brought into contact with the transfer to activate the adhesive and effect the transferring operation.

Abstract: Optically variable ink for obtaining a color shaft between two distinct two colors at first and second angles of incident light comprised of an ink vehicle and optically variable flakes disposed in the ink vehicle. The optically variable flakes are comprised of a multilayer thin film interference structure having first and second parallel planar surfaces. The optically variable flakes have physical dimensions such that when the flakes are measured in directions parallel and perpendicular respectively to the planar surfaces an aspect ratio of at least 2 to 1 is provided. The multilayer thin film structure is of symmetrical design and includes a metal reflector having first and second surfaces parallel to the first and second parallel planar surfaces and at least one period disposed on each of said first and second surfaces of the metal reflector. Each period is comprised of a dielectric layer with an index of refraction of 1.65 or less and a semi-opaque layer.

Abstract: A pre-patterned device substrate device-attach transfer tape is described which allows a one step mounting of adhesive patterns on a device substrate in the desired configuration for later mount of surface mounted devices (e.g., semiconductor dies) thereon. The tape product contains the adhesive pattern in a mirror image to that desired on the exposed surface of the device substrate. The product of the present invention is utilized by bringing the tape product into contact with the device substrate so that the adhesive on the carrier film bonds to the desired surface of the device substrate thereby bringing the adhesive patterns into the desired configuration desired on the device substrate. The use of pressure and, possibly, heat preferentially bonds the adhesive to the device substrate and allows for later stripping of the support film from the support film/adhesive/device substrate composite.

Abstract: A process for decorating an article using a sublimation process includes the step of preparing a cover sheet having at least two superposed layers of plastic material, one of which is substantially transparent and the other which is opaque. A carrier sheet is prepared carrying a motif in the form of sublimable coloring agents. The carrier sheet is applied to the opaque layer of the cover sheet and a sublimation transfer process is effected by which the motif in the carrier sheet is transferred to the opaque layer of the cover sheet such that the coloring agents migrate into and beyond the opaque layer. Finally, the process involves applying the cover sheet to the article such that the opaque side of the cover sheet faces the article so that an observer views the motif through the transparent layer.

Abstract: A label for transferring copies of solvent sensitive images, such as those comprised of fused toner, from one surface to another. An original image is copied on to the label by wetting the image to be copied and the label with solvent (after placing the label and the image in contact). Solvation of the image causes a likeness of the image to migrate to the label. The solvent is preferably applied by breaking solvent-filled microcapsules which are in contact with the label and/or the item which bears the original image. After solvation of the image, the label, bearing a copy of the image, can be removed from the original image bearing surface and attached to a receiving surface. The invention has particular application to the addressing of envelopes for letters printed by laser printers. In this application, a copy of the address of an intended recipient of a letter can be transferred from the letter to an envelope without destroying the original address on the letter.

Abstract: An apparatus for decorating the outer surface of a hollow article, such as a bottle, with a label, which includes a turret for transporting the article and a label from a loading to an unloading location while simultaneously rotating the article around its own axis which facilitates the label to be transferred to the outer surface of the bottle. The turret also includes nozzles which engage each article at the decorating station. Furthermore, air may be blown into the article through the nozzle to support the article in instances when said article is made of a plastic or other deformable material. The apparatus also includes an indexing station for turning the article to a preelected orientation before the application of the label. The article is preferably mounted in such manner that the label is not applied on a seam of the bottle.

Abstract: A laminated web is used for supplying characters, symbols or other shapes, which are cut from a layer of sign material comprising one of the layers of the web, subsequently adhesively attached to a supporting surface to create a sign. In the web the layer of sign material is superimposed on a layer of paper or similar material with an intervening layer of pressure sensitive or permanently tacky adhesive. A layer of dry adhesive is carried by the otherwise exposed face of the layer of sign material and is activatable into a tacky condition for adhesively attaching the underlying portions of the layer of sign material to a supporting surface. The arrangement of the layers, the types of adhesives and the bonding strengths of the adhesives to their adherent surfaces allow the shapes cut from the layer of sign material to be transferred to and adhesively attached to a supporting surface, after cutting, by a simple and easy process.