Abstract: [Problem] The main purpose is to provide a novel carbon-containing solid acid which has an excellent catalytic activity and of which the catalytic activity cannot be deteriorated easily even when used repeatedly. [Solution] A carbon-containing solid acid which comprises a carbonaceous material having a sulfonate group, wherein the carbonaceous material has a graphene structure in at least a part thereof and contains boron.

Abstract: An anti-counterfeit printed matter which forms an invisible image that can be visualized clearly to prevent a visible image from impeding visibility of a visualized invisible image. A plurality of object elements are arranged at a predetermined pitch in a matrix, each object element including a first object and a second object arranged along a first direction on both sides of a boundary at a center to oppose each other, and a third object and a fourth object arranged along a second direction perpendicular to the first direction on both sides of a boundary at the center to oppose each other. The first object and the second object, and the third object and the fourth object of each object element have a negative/positive relationship. The first object and/or the second object form a first invisible image. The third object and/or the fourth object form a second invisible image.

Abstract: [Problem] The main purpose is to provide a novel carbon-containing solid acid which has an excellent catalytic activity and of which the catalytic activity cannot be deteriorated easily even when used repeatedly. [Solution] A carbon-containing solid acid which comprises a carbonaceous material having a sulfonate group, wherein the carbonaceous material has a graphene structure in at least a part thereof and contains boron.

Abstract: The main problem addressed by the present invention is to provide a supported gold nanoparticle catalyst and having high catalytic activity. The above-mentioned problem can be solved by a supported catalyst comprising: a carrier having a reducing power; and gold nanoparticle with an average particle diameter of 100 nm or less, and preferably with an average particle diameters of 5 nm or less supported on the carrier. The present invention also provides a method for producing the supported catalyst.

Abstract: This invention relates to an anti-counterfeit printed matter such as a banknote or a passport which requires anti-counterfeit or anti-copy, a method of manufacturing the same, and a recording medium storing halftone dot data creation software.

Abstract: The purpose of the present invention is to provide a stable colloidal gold solution and a method for producing the stable colloidal gold solution. A colloidal gold solution which contains, in water, gold nanoparticles having particle diameters of 100 nm or less and anions represented by general formula (a); and a method for producing the colloidal gold solution. R—COO? (a) (In the formula, R represents a linear or branched alkyl group having 1-4 carbon atoms.

Abstract: This invention relates to an anti-counterfeit printed matter, including securities such as banknotes, stock certificates, and bonds, various kinds of certificates, and important documents, which requires anti-counterfeit or anti-copy. [Solving Means] A visible image is formed by a first object group arrayed in a first direction at a predetermined pitch and a second object group arranged in the non-imaging area of the first object group. The second object group forms the negative and positive images of a first invisible image by arbitrarily arranging two kinds of objects in pairs in the on/off relationship. Addition, in the anti-counterfeit printed matter, the first object group includes object portions that are formed in at least two height levels from the surface of the printed matter so as to have a predetermined difference in height, thereby forming a second invisible image.

Abstract: The method for producing a material loaded with gold nanoparticles, includes: impregnating a carrier with an anionic gold-hydroxo complex solution including a transparent solution that has a pH of not lower than 8, does not contain a halide anion, and contains a conjugate base of a weak acid not coordinated to gold and an anionic hydroxo complex of trivalent gold having a square planar molecular geometry whose at least one ligand is OH? and not containing a halide anion as a ligand; removing water; heating; and washing with water. According to the method, in a method for preparing a gold nanoparticle catalyst using a liquid phase method, a gold compound not containing a halide such as chloride is used as a raw material, and the gold compound can be supported efficiently. Furthermore, a gold nanoparticle-loaded catalyst having high activity can be obtained through a simple preparation method.

Abstract: This invention implements a printed product capable of embedding a variety of information which are unrecognizable by human eyes in image lines included in a security line drawing without decreasing the artistic effect of printed image lines and authenticating the information on the basis of the Fourier-transformed pattern of the printed image lines. This invention provides an information authenticable printed product having a plurality of line drawings in which an image line includes a unit image line including a plurality of image lines arrayed in parallel along a normal direction, and the normal-direction intervals between the plurality of image lines in the unit image line are set in correspondence with information to be embedded, an authentication method, a method of embedding information in the printed product, and an authentication apparatus.

Abstract: This invention relates to an anti-counterfeit printed matter such as a banknote or a passport which requires anti-counterfeit or anti-copy, a method of manufacturing the same, and a recording medium storing halftone dot data creation software.

Abstract: This invention relates to an anti-counterfeit printed matter, including securities such as banknotes, stock certificates, and bonds, various kinds of certificates, and important documents, which requires anti-counterfeit or anti-copy. [Solving Means] A visible image is formed by a first object group arrayed in a first direction at a predetermined pitch and a second object group arranged in the non-imaging area of the first object group. The second object group forms the negative and positive images of a first invisible image by arbitrarily arranging two kinds of objects in pairs in the on/off relationship. Addition, in the anti-counterfeit printed matter, the first object group includes object portions that are formed in at least two height levels from the surface of the printed matter so as to have a predetermined difference in height, thereby forming a second invisible image.

Abstract: This invention provides an anti-counterfeit printed matter which forms an invisible image that can be visualized clearly and also prevents a visible image from impeding visibility of a visualized invisible image. In the anti-counterfeit printed matter according to this invention, a plurality of object elements are arranged at a predetermined pitch in a matrix, each object element including a first object and a second object which are arranged along a first direction on both sides of a boundary at a center so as to oppose each other, and a third object and a fourth object which are arranged along a second direction perpendicular to the first direction on both sides of a boundary at the center so as to oppose each other. The first object and the second object, and the third object and the fourth object of each object element have a negative/positive relationship. The first object and/or the second object forms a first invisible image. The third object and/or the fourth object forms a second invisible image.

Abstract: This invention implements a printed product capable of embedding a variety of information which are unrecognizable by human eyes in image lines included in a security line drawing without decreasing the artistic effect of printed image lines and authenticating the information on the basis of the Fourier-transformed pattern of the printed image lines. This invention provides an information authenticable printed product having a plurality of line drawings in which an image line includes a unit image line including a plurality of image lines arrayed in parallel along a normal direction, and the normal-direction intervals between the plurality of image lines in the unit image line are set in correspondence with information to be embedded, an authentication method, a method of embedding information in the printed product, and an authentication apparatus.

Abstract: The present invention provides a method for effectively suppressing the deactivation of a gold nanoparticle catalyst by removing both carbon dioxide and water from a gas to be treated, thereby effectively removing carbon monoxide over a long period of time. The present invention relates to a catalyst for removing carbon monoxide having a carbon dioxide and water remover and a gold nanoparticle catalyst in which gold particles with an average particle diameter of 25 nm or less are supported on a metal oxide; and a method for removing carbon monoxide from a gas containing carbon monoxide, having a step of treating a gas containing carbon monoxide with the carbon dioxide and water remover and the gold nanoparticle catalyst in which gold particles with an average particle diameter of 25 nm or less are supported on a metal oxide.

Abstract: An authenticity discriminable printed matter in which a latent image cannot be visually identified under ordinary visible light but appears upon being irradiated with UV rays. A basic image is formed on a base material. The basic image is made of a latent image portion and latent image peripheral portion. The latent image portion and latent image peripheral portion cannot be visually discriminated, and each of them is formed from a set of dots continuously laid out at a predetermined period. The resolution of the dots of the latent image portion is different from that of the dots of the latent image peripheral portion. The latent image portion and latent image peripheral portion have the same percent dot area per unit area and different dot peripheral lengths (contour lengths) per unit area. The latent image portion and latent image peripheral portion are printed by color fluorescent ink, thus obtaining printed matter.

Abstract: An air activating device comprising a wind tunnel (1) formed with a suction port and an exhaust port, a first corona discharge electrode pair (4) and a second corona discharge electrode pair (5) disposed in the wind tunnel (1) to generate corona discharge, and an ozone generating lamp (6) disposed in the wind tunnel to generate ozone, wherein the first corona discharge electrode pair (4), the ozone generating lamp (6) and the second corona discharge electrode pair (5) are disposed in the order mention in an air flowing direction from the suction port to the exhaust port, the first and second corona discharge electrode pairs (4, 5) respectively have discharge electrodes (41, 51) and counter electrodes (42, 52), and the discharge electrodes (41, 51) and counter electrodes (42, 52) are disposed in the order mentioned in the air flowing direction.

Abstract: This invention provides authenticity discriminable printed matter in which a latent image cannot be visually identified under ordinary visible light but appears upon being irradiated with UV rays. A basic image is formed on a base material. The basic image is made of a latent image portion and latent image peripheral portion. The latent image portion and latent image peripheral portion cannot be visually discriminated, and each of them is formed from a set of dots continuously laid out at a predetermined period. The resolution of the dots of the latent image portion is different from that of the dots of the latent image peripheral portion. The latent image portion and latent image peripheral portion have the same percent dot area per unit area and different dot peripheral lengths (contour lengths) per unit area. The latent image portion and latent image peripheral portion are printed by color fluorescent ink, thus obtaining printed matter.

Abstract: The present invention is for a transparent conductive film of nitrogen-containing indium tin oxide 5 nm to 100 &mgr;m thick formed on a substrate. The process for producing the transparent film includes exciting the surface of the substrate in a vacuum and depositing vaporized indium tin oxide on the surface of the substrate. The surface may be excited with irradiation with an ion beam. The indium tin oxide may be deposited through vacuum deposition, laser abrasion, ion plating, ion beam deposition, or chemical vapor deposition. Vapor deposition of indium tin oxide may be performed using a sintered product of indium oxide and tin oxide or with indium metal and tin metal.

Abstract: The invention provides a method of producing tranparent and conductive ultrathin films of metal carbide or metal nitride on a glass, ceramics or organic polymer substrate, which comprises the steps of exciting a surface of said substrate by irradiating said surface with a carbon or nitrogen ion beam; simultaneously vapor-depositing a transition metal onto said surface to form a carbide or nitride layer; and terminating the excitation and the vapor-deposition when the thickness of the metal carbide or nitride layer is in the range of 1 nm to 50 nm, and the light permeability of the metal carbide or nitride layer is in the range of 30% to 90%, wherein the conductivity of the metal carbide or nitride layer is in the range of 1 k.OMEGA./.quadrature. To 100 k.OMEGA./.quadrature..

Abstract: The invention provides the following:1. A transparent and conductive ultrathin film comprising a transition metal, formed on a substrate, with a film thickness of 1 to 200 nm.2. a method of producing transparent and conductive ultrathin films which comprises vapor-depositing at least one vaporized transition metal on a substrate in an excited state under vacuum to thereby form a thin film of said transition metal.