Abstract: An object of the present invention is to provide a gardenia blue pigment that exhibits a vivid blue tone that is bright and has reduced redness, and a method for producing the gardenia blue pigment. A gardenia blue pigment that exhibits a vivid blue tone that is bright and has reduced redness is obtained by carrying out the following first and second steps: the first step of reacting at least one peptide selected from the group consisting of soy peptide, sesame peptide, and rice peptide with genipin in a solvent without the supply of a gas containing oxygen; and the second step of treating the reaction solution obtained in the first step with the supply of a gas containing oxygen.

Abstract: An object of the present invention is to provide a gardenia blue pigment that can stably maintain the color tone even after heating under acidic conditions, and a method for producing the gardenia blue pigment. A gardenia blue pigment that can stably maintain the color tone even after heating under acidic conditions is obtained by carrying out the following first and second steps: the first step of reacting walnut peptide, bitter melon peptide, and/or soy peptide with genipin in a solvent without the supply of a gas containing oxygen; and the second step of treating the reaction solution obtained in the first step with the supply of a gas containing oxygen.

Abstract: In a surroundings monitoring apparatus, a third determiner determines, based on a positional relationship between the object determined by a first determiner and the towed vehicle determined by a second determiner, whether the rearward side object is a ghost. An establishing unit establishes an object searching area located at least in front of or on the right or left side of an own vehicle in accordance with: (i) a position of a radio-wave transceiver; (ii) at least one of a position of each of left and right edges of the front end of the towed vehicle and a position of each of left and right edges of the rear end of the towed vehicle; and (iii) an angle of the towed vehicle tilted to a traveling direction of the own vehicle. The first determiner determines whether an object is located in the established searching area.

Abstract: The present invention provides a porous polyimide or polyimide wet gel with excellent physical properties. One aspect provides a porous polyimide in which an average pore size (d) obtained by using small-angle x-ray scattering is 1.0 nm to 7.0 nm. One aspect provides a porous polyimide in which the minimum value of the differential coefficient when the logarithmic value log[I(q)] of the scattering intensity I(q) is differentiated by the logarithmic value log[q] of the scattering vector q is ?1.0 to 0.0 within a range in which the size of the scattering vector q in small-angle x-ray scattering is 0.025 nm?1 to 0.075 nm?1.

Abstract: A cathode diffusion layer for organic hydride production of the present disclosure includes a carbon foam. the carbon foam being a porous body with continuous voids, and having lincar portions and node portions joining the linear portions.

Abstract: By coating an oral solid preparation with a gel film containing a polymer gelable on contact with water, a carbonate, and an acidic substance, obtained oral solid composition is easy to swallow, and elution of active ingredients is suppressed, while the composition can disintegrate in the oral cavity. When an oral solid composition comprising a gel film is hermetically packed or is tightly packed together with a desiccant, discoloration during storage can be suppressed. In a gel film, by setting the concentration of glycerol at 2% by mass or less relative to the total amount of the gel film, mold is prevented from growing. In the case where a coating liquid in which a polymer gelable on contact with water is dispersed is used to form a gel film, the gel film can be formed for a short period of time, even when the coating liquid contains a large amount of the polymer. A gel fil containing titanium oxide at 20% by mass or less can be identifiably marked by ultraviolet laser irradiation.

Abstract: An electrode for a redox flow battery including a carbon structural body, wherein, in a measurement of surface functional group concentrations of the carbon structural body, a carbon concentration is 82.0% or higher and 98.0% or lower, a nitrogen concentration is 1.0% or higher and 10.0% or lower, and an oxygen concentration is 1.0% or higher and 8.0% or lower.

Abstract: An object of the present invention is to provide a membrane for a redox flow battery which is prevented from being curled and exhibits high power efficiency, a membrane electrode assembly for a redox flow battery, a cell for a redox flow battery, and a redox flow battery. The object can be attained by a membrane for a redox flow battery, comprising a first ion-exchange resin layer, an anion-exchange resin layer containing an anion-exchange compound, and a second ion-exchange resin layer in the presented order, wherein a value obtained by dividing a thickness of the first ion-exchange resin layer by a thickness of the second ion-exchange resin layer is 0.7 or more and 1.3 or less, and a thickness of the anion-exchange resin layer is 0.02 ?m or larger and 3 ?m or smaller.

Abstract: The present invention provides an electrolyte membrane for a redox flow battery, comprising a perfluorocarbon polymer having an ion-exchange group, wherein the perfluorocarbon polymer has equivalent weight EW of the ion-exchange group of 600 g/eq or more and 2000 g/eq or less, a craze area ratio of the electrolyte membrane is 1.5% or less, and a relative dimension of the electrolyte membrane in at least one of a X direction and a Y direction is 80% or more and less than 100% in the following relative dimension by dipping in 2 M aqueous sulfuric acid solution.

Abstract: A carbon foam formed of carbon fibers, where, at 90% or more of any 20 locations, the carbon fibers have a fiber diameter that is within ±20% of an average fiber diameter.

Abstract: The purpose of the present invention is to provide: a gardenia blue pigment which contains a product of a reaction between genipin and a compound having a primary amino group, and which offers a bright, fresh blue color tone having reduced redness; and a method for producing same. This gardenia blue pigment, which offers a bright, fresh blue color tone having reduced redness, is obtained by carrying out a first step in which genipin and at least one peptide selected from the group consisting of soybean peptides, sesame peptides, and rice peptides are reacted in a solvent without supplying an oxygen-containing gas, and a second step in which a reaction liquid obtained in the first step is processed under an oxygen-containing gas supply.

Abstract: A carbon foam comprising linear portions and node portions joining the linear portions, wherein the linear portions have a diameter of 0.1 ?m or more and 10.0 ?m or less, and the carbon foam has a surface with an area of 100 cm2 or more.

Abstract: An object of the present invention is to provide a membrane for a redox flow battery which is prevented from being curled and exhibits high power efficiency, a membrane electrode assembly for a redox flow battery, a cell for a redox flow battery, and a redox flow battery. The object can be attained by a membrane for a redox flow battery, comprising a first ion-exchange resin layer, an anion-exchange resin layer containing an anion-exchange compound, and a second ion-exchange resin layer in the presented order, wherein a value obtained by dividing a thickness of the first ion-exchange resin layer by a thickness of the second ion-exchange resin layer is 0.7 or more and 1.3 or less, and a thickness of the anion-exchange resin layer is 0.02 ?m or larger and 3 ?m or smaller.

Abstract: Provided are an ion exchange membrane that has excellent mechanical strength as well as can exhibit an excellent proton conductivity over a long period, a membrane electrode assembly, a fuel cell, a redox flow secondary battery, a water electrolyzer, and an electrolyzer for organic hydride synthesis. An ion exchange membrane containing: an electrolyte containing a perfluorocarbon sulfonic acid polymer; and glass fiber having a SiO2 content of 99.9% by mass or more.

Abstract: It is an object of the present disclosure to provide a thin-film carbon foam and a method of manufacture the same. It is another object of the present disclosure to provide a stack carbon foam having fewer through holes and a method of manufacturing the same. The carbon foam of the present disclosure is, for example, a stack carbon foam being a stack of at least two monolayer carbon foams stacked one another, each monolayer carbon foam comprising linear portions and node portions joining the linear portions, or a carbon foam comprising linear portions and node portions joining the linear portions, wherein the ratio of the number of large through holes having a diameter of 1 mm or more to the surface area of the carbon foam is 0.0003/mm2 or less.

Abstract: An object of the present invention is to provide a gardenia blue pigment that exhibits a vivid blue tone that is bright and has reduced redness, and a method for producing the gardenia blue pigment. A gardenia blue pigment that exhibits a vivid blue tone that is bright and has reduced redness is obtained by carrying out the following first and second steps: the first step of reacting at least one peptide selected from the group consisting of soy peptide, sesame peptide, and rice peptide with genipin in a solvent without the supply of a gas containing oxygen; and the second step of treating the reaction solution obtained in the first step with the supply of a gas containing oxygen.

Abstract: An object of the present invention is to provide a gardenia blue pigment that can stably maintain the color tone even after heating under acidic conditions, and a method for producing the gardenia blue pigment. A gardenia blue pigment that can stably maintain the color tone even after heating under acidic conditions is obtained by carrying out the following first and second steps: the first step of reacting walnut peptide, bitter melon peptide, and/or soy peptide with genipin in a solvent without the supply of a gas containing oxygen; and the second step of treating the reaction solution obtained in the first step with the supply of a gas containing oxygen.

Abstract: The present invention provides an electrolyte membrane for a redox flow battery, comprising a perfluorocarbon polymer having an ion-exchange group, wherein the perfluorocarbon polymer has equivalent weight EW of the ion-exchange group of 600 g/eq or more and 2000 g/eq or less, a craze area ratio of the electrolyte membrane is 1.5% or less, and a relative dimension of the electrolyte membrane in at least one of a X direction and a Y direction is 80% or more and less than 100% in the following relative dimension by dipping in 2 M aqueous sulfuric acid solution.

Abstract: Provided is a carbon foam and a membrane electrode assembly having linear portions and node portions joining the linear portions; and a carbon foam and a membrane electrode assembly having linear portions and node portions joining the linear portions, where the carbon content is 51 mass % or more, and the mean deviation of coefficient of friction by the Kawabata evaluation system method is 0.006 or less.

Abstract: A carbon foam formed of carbon fibers, where, at 90% or more of any 20 locations, the carbon fibers have a fiber diameter that is within ±20% of an average fiber diameter.