Abstract: A laser machining method for machining a workpiece by shining a laser beam to the workpiece from laser beam shining means while moving the workpiece and the laser beam shining means relative to each other, wherein during laser beam shining, a gas is ejected from a side, which has been machined by the laser beam, toward a shining position of the laser beam.

Abstract: The pressure-sensitive adhesive sheet for medical use, which comprises a supporting layer and a pressure-sensitive adhesive layer provided on at least one side of the supporting layer, wherein each of the supporting layer and the pressure-sensitive adhesive layer is prepared from an aqueous polymer dispersion and the supporting layer and the pressure-sensitive adhesive layer are in the state of being anchored each other at the boundary thereof. This pressure-sensitive adhesive sheet for medical use is produced, for example, by simultaneously applying at least a coating fluid for forming a pressure-sensitive adhesive layer and a coating fluid for forming a supporting layer in this order to a release member and drying the coating fluids applied.

Abstract: A pressure-sensitive adhesive sheet comprising a plastic sheet having on one surface thereof a pressure-sensitive adhesive layer, wherein the plastic sheet has on at least one surface thereof a print layer having a thickness of 40 to 1,000 &mgr;m and containing 30 to 90% by weight based on the total weight of the print layer of an X-ray absorbing metal. The print pattern may be scales, grid lines, numbers, etc. singly or in combination. Information on individual subject or scales or grid lines pattern may be copied in a radiograph having an image of the inside of the subject body. This enables surgeons to determine the size of the inside of the subject body or position of target organ with ease.

Abstract: An electromagnetic wave shielding device comprising an electroconductive material, a flexible material, and a pressure-sensitive adhesive layer that is or is to be applied to the electroconductive material through the flexible material.

Abstract: A lightguide which guides light from at least one side end plane and includes a plurality of approximately trapezoidal protrusions whose apex edge in the cross section perpendicular to the axis of a linear light source has a partially straight section. The approximately trapezoidal protrusions are arranged on the rear surface of the lightguide, opposing a light emitting surface. The approximately trapezoidal protrusions are arranged in a pattern of specks, solid lines, or broken lines. The pattern has a low area density in a region neighboring the at least one side end plane and at a high area density in a region removed from the at least one side end plane such that the luminance distribution of the light emitted from the light emitting surface is approximately uniform.

Abstract: A transparent lightguide (3) which guide light at least from one side end plane is characterized in that a large number of speckled, solid-line shaped or broken-line shaped protruding patterns whose cross-sectional width W (&mgr;m) at a cross section perpendicular to the axis of a linear light source is 10≦W≦200 are arranged on a light emitting surface at a low density in a region close to the linear light source and at a high density in a region far from the linear light source so as to make the luminance distribution of the light emitted from the light emitting surface approximately uniform. Here, the cross section of the protruding pattern is preferable to be approximately trapezoidal while having a straight part partially and the ratio H/W to be 0.2≦H/W≦1.0, where W and H denote cross-sectional width and height of the protruding pattern, respectively, or the cross section of the protruding pattern is preferable to be approximately circular-arc and the ratio H/W to be 0.2≦H/W≦0.

Abstract: Provided is a panel light source device through which the light availability is increased. The luminance of light to be outputted by the device in the oblique direction that oversteps the front direction of the device is reduced. The device comprises a light source 2, a reflector 8, a waveguide 3 that receives through its side surfaces the light having been outputted by the light source 2 and reflected by the reflector 8, an output light modulator 6 as provided on the light output surface of the waveguide 3 to modulate the output light from the light output surface of the waveguide 3 toward the front direction of the light output surface, and an input light modulator 9 as provide between the light source 2 and the side surface of the waveguide 3 to modulate the output light from the light source 2 toward the light output surface of the waveguide 3 or toward the back surface of the waveguide 3 opposite to the light output surface thereof.

Abstract: The present invention includes the steps of forming a stamper with a fine and delicate relief pattern formed thereon by forming a photo resist layer on a flat substrate, exposing the photo resist, developing the exposed photo resist, metallizing and electroforming the surface of the photo resist, and of injection molding the light-transmitting plate using said stamper.

Abstract: According to the present invention, there is provided a sliding gate plate connected to a molten metal container, used as a part of a nozzle, for controlling a flow amount of molten metal in the molten metal container, comprising a main body of the sliding gate plate, having a through-hole at a section corresponding to a molten metal discharge control, and a cylinder having a ring-like fringe portion, and fit into the through-hole of the main body of the plate.

Abstract: A pressure-sensitively adhering multilayer medicinal preparation comprises a pressure-sensitively adhering macromolecular substance layer and a polymer layer adjacent thereto and the drug and adjuvant incorporated in said preparation each can migrate from the layer of its original incorporation into the other, said adjuvant being capable of increasing absorption of the drug. In such preparation, the drug amount per unit volume can be increased.

Abstract: A hydrophilic therapeutic material comprising a carrier and a drug-containing patching layer formed thereon directly or indirectly, wherein said patching layer comprises a copolymer of 5 to 75% by weight of an acrylic or methacrylic ester having an ether group in the molecule, 85 to 15% by weight of an alkyl acrylate or alkyl methacrylate and 10 to 50% by weight of a polar monomer copolymerizable therewith.

Abstract: A process for obtaining a composite pharmaceutical preparation which comprises coating or laminating a composition comprising(a) an adhesive substance having a pressure-sensitive adhesive property at room temperature, and(b) a percutaneous absorption type medicine which is solid at 0.degree. C.onto a polymer film capable of allowing the medicine in contact therewith to migrate through the polymer film, the composition being prepared by adding the medicine to the adhesive substance in a higher concentration than the solubility thereof in the adhesive substance.

Abstract: A pharmaceutical preparation comprising a flexible backing and a base material provided thereon is described wherein the base material consists essentially of a polymer having a glass transition temperature of from -70.degree. C. to -10.degree. C. and exhibiting pressure-sensitivity at room temperature, and isosorbide dinitrate or pentaerythritol tetranitrate. This pharmaceutical preparation is applied to the skin, and permits the active ingredient to be absorbed through the skin into the body at a constant rate, and gradually over a long period of time.