Abstract: The present invention relates to a methane combustion catalyst including platinum and iridium supported on a tin oxide carrier for combusting methane in a combustion exhaust gas containing sulfur oxide. In this methane combustion catalyst, in line analysis by electron probe microanalysis performed on an arbitrary cross-section thereof from a deepest catalyst portion toward a catalyst surface, a first region where all of platinum, iridium and tin are detected and a second region where tin is essentially detected but platinum is not detected are both observable. In a specific form, the catalyst includes a base catalyst layer where platinum and iridium are supported on a tin oxide carrier, and an overcoat layer including tin oxide formed on the base catalyst layer. The methane combustion catalyst of the present invention is excellent in initial activity, and is improved in durability.

Abstract: The present application provides black perylene pigment microparticles having an average circularity of 0.8 or more which are amorphous; and a method of producing the black perylene pigment microparticles, which comprises a step of mixing a pigment solution in which a black perylene pigment is dissolved and a precipitation solvent for precipitating black perylene pigment microparticles from the pigment solution to form black perylene pigment microparticles, wherein at least one of the pigment solution and the precipitation solvent independently includes a salt of an alkaline earth metal and/or a particle growth inhibitor. The present invention can provide black perylene pigment microparticles having good dispersibility, high concealability and light-shielding property and controlled hue and chroma, and a method of easily producing the same, and the like.

Abstract: The present invention relates to a methane combustion catalyst including platinum and iridium supported on a tin oxide carrier for combusting methane in a combustion exhaust gas containing sulfur oxide. In the methane combustion catalyst, a ratio RTO of platinum oxides to metal platinum is 8.00 or more, wherein the ratio RTO is based on existence percentages of the metal platinum (Pt) and the platinum oxides (PtO and PtO2) obtained from a platinum 4f spectrum analyzed and measured by X-ray photoelectron spectroscopy (XPS) and calculated in accordance with the following expression. In the following expression, RPt is an existence percentage of the metal platinum (Pt), RPto is an existence percentage of PtO, and RPto2 is an existence percentage of PtO2.

Abstract: A method of producing silver fine particles includes continuously reducing silver ions contained in a silver compound to precipitate silver fine particles by introducing at least two fluids from separate flow paths and mixing the fluids, wherein one fluid of the at least two fluids contains the silver compound, and another fluid contains a reducing agent, and at least one fluid of the at least two fluids contains an amino acid. With this method, silver fine particles can be produced with sufficient continuous productivity and quality uniformity, without problems of deterioration of working environment and generation of explosive fulminating silver due to the use of a large amount of ammonia.

Abstract: The present application provides black perylene pigment microparticles having an average circularity of 0.8 or more which are amorphous; and a method of producing the black perylene pigment microparticles, which comprises a step of mixing a pigment solution in which a black perylene pigment is dissolved and a precipitation solvent for precipitating black perylene pigment microparticles from the pigment solution to form black perylene pigment microparticles, wherein at least one of the pigment solution and the precipitation solvent independently includes a salt of an alkaline earth metal and/or a particle growth inhibitor. The present invention can provide black perylene pigment microparticles having good dispersibility, high concealability and light-shielding property and controlled hue and chroma, and a method of easily producing the same, and the like.

Abstract: Provided is a method for producing an organic compound, the method making it possible to ensure an adequate reaction time and obtain a targeted substance at a high yield even in an organic reaction that requires a relatively long time to complete the reaction.

Abstract: An optical measurement apparatus for an eyeball includes a light emitter, a light receiver, a detector, and a controller. The light emitter emits light such that the light passes across an eyeball of a subject. The light receiver receives the light that has transmitted through the eyeball. The detector detects a direction of the eyeball. The controller performs control such that the light emitter starts emitting light having an intensity used in measurement or the light emitter increases an intensity of light emitted by the light emitter to the intensity used in measurement in a case where the direction of the eyeball detected by the detector is in a predetermined range.

Abstract: An eyeball optical measuring device includes: an optical measuring unit that irradiates an eyeball of a subject with measuring light to perform an optical measurement of the eyeball; and a light irradiation unit that irradiates the eyeball with irradiation light prior to the optical measurement by the optical measuring unit, the irradiation light having a lower energy density than an energy density of the measuring light.

Abstract: A method of producing organic pigment microparticles includes: Step 1 of precipitating organic pigment microparticles by mixing an organic pigment raw material liquid in which an organic pigment raw material is mixed with a solvent, and a precipitation solvent for precipitating the organic pigment microparticles from the organic pigment raw material liquid in a thin film fluid formed by introducing the organic pigment raw material liquid and the precipitation solvent in a space between at least two processing surfaces which are disposed so as to face each other, being capable of approaching to and separating from each other, at least one of which rotates relatively to the other; and Step 2 of coating at least a part of the organic pigment microparticles with an oxide coating; wherein the oxide coating is optically colorless and transparent, and Step 1 and Step 2 are performed out continuously in the thin film fluid.

Abstract: An image forming apparatus includes an image bearer, an image forming device to form an image on the image bearer, a transfer device to transfer the image formed on the image bearer onto a sheet, a storage to store the sheet, a sheet feeder to convey the sheet one by one to the transfer device, and a slip amount prediction controller. The slip amount prediction controller calculates a predicted slip amount between the sheet feeder and the sheet before forming the image and, subsequently calculates an interval between images based on the predicted slip amount. The slip amount prediction controller controls the image forming device based on the calculated interval between images to form the image on the image bearer.

Abstract: An optical measuring instrument 1 is equipped with an optical system 20 to be used for measuring a characteristic of the aqueous humor in the anterior chamber 13 of an eyeball 10 of a measurement subject person and a holding unit 50 which holds the optical system 20 etc. The optical system 20 is equipped with a light emitting system 20A and a photodetecting system 20B. An optical path 28 is set so that light emitted from the light emitting system 20A passes through (traverses) the anterior chamber 13 and is detected by the photodetecting system 20B in a state that the eyeball 10 is turned outward.

Abstract: At least a first fluid and a second fluid are used and are not miscible with each other. At least the first fluid includes one or two items selected from an organic compound, a reactant, and a phase transfer catalyst. From among the fluids other than the first fluid, at least the second fluid includes at least one item from among the items not selected from the three items. The first fluid and second fluid contain all three items. Each of the fluids are merged in a thin-film fluid formed between processing faces that rotate relative to each other. A phase transfer catalyst reaction occurs in the thin-film fluid. Among the first fluid and the second fluid, at least the fluid containing the phase transfer catalyst is prepared so that the phase transfer catalyst is substantially homogeneously mixed before being introduced between the processing faces.

Abstract: An optical measurement apparatus for an eyeball includes a light emitter, a light receiver, a detector, and a controller. The light emitter emits light such that the light passes across an eyeball of a subject. The light receiver receives the light that has transmitted through the eyeball. The detector detects a direction of the eyeball. The controller performs control such that the light emitter starts emitting light having an intensity used in measurement or the light emitter increases an intensity of light emitted by the light emitter to the intensity used in measurement in a case where the direction of the eyeball detected by the detector is in a predetermined range.

Abstract: The object of the present invention is to provide a method of producing organic pigment microparticles which can surely suppress growth and/or aggregation of particles.

Abstract: A surface-emitting semiconductor laser includes a first semiconductor multilayer film reflector, an active region, a second semiconductor multilayer film reflector, and a current confinement layer including an oxidized region formed by selective oxidation. The current confinement layer includes a first semiconductor layer having a relatively high Al content, a second semiconductor layer that is adjacent to the first semiconductor layer on an active-region side of the first semiconductor layer and has a lower Al content than the first semiconductor layer, and a composition-gradient layer adjacent to the first semiconductor layer on a side of the first semiconductor layer which is opposite to the active-region side. A portion of the composition-gradient layer which faces the first semiconductor layer has a lower Al content than the first semiconductor layer.

Abstract: The present invention addresses the problem of providing a method for producing an organic compound by a phase transfer catalysis reaction using a forced thin-film microreactor.

Abstract: An eyeball optical measuring device includes: an optical measuring unit that irradiates an eyeball of a subject with measuring light to perform an optical measurement of the eyeball; and a light irradiation unit that irradiates the eyeball with irradiation light prior to the optical measurement by the optical measuring unit, the irradiation light having a lower energy density than an energy density of the measuring light.

Abstract: An optical measurement apparatus includes: an emission section that emits light such that the light travels across an anterior chamber of an eyeball of a measurement subject; a light reception section that receives light that is emitted from the emission section and travels across the anterior chamber; and a positioning section that performs positioning of one of the emission section and the light reception section at a position where skin on a periphery of an inner canthus of the eyeball is squeezed into an eye socket accommodating the eyeball.

Abstract: A concentration calculation system calculates a concentration of the optically active substance based on a formula. The formula includes a first function representing wavelength dependence of an optical rotation of a first optically-active substance, and a second function representing wavelength dependence of an optical rotation of a second optically-active substance. In the first function, concentration of the first optically-active substance has an unknown value, and an inherent value for defining a characteristic of optical rotatory dispersion of the first optically-active substance is a known value or an unknown value within a certain limited range. In the second function, an inherent value for defining a characteristic of optical rotatory dispersion of the second optically-active substance is an unknown value.

Abstract: An image forming apparatus includes an image bearer, an image forming device to form an image on the image bearer, a transfer device to transfer the image formed on the image bearer onto a sheet, a storage to store the sheet, a sheet feeder to convey the sheet one by one to the transfer device, and a slip amount prediction controller. The slip amount prediction controller calculates a predicted slip amount between the sheet feeder and the sheet before forming the image and, subsequently calculates an interval between images based on the predicted slip amount. The slip amount prediction controller controls the image forming device based on the calculated interval between images to form the image on the image bearer.