Abstract: A particle dispersion liquid includes: an aqueous medium; at least one of a compound represented by Formula (I) and a compound represented by Formula (II), which is dispersed in the aqueous medium; and at least one of: (i) a polymer having alkyl (meth) acrylate as a structural unit, the alkyl (meth) acrylate containing an alicyclic hydrocarbon group having a bridged bond, the polymer having an acid value ranging from 6 mgKOH/g to 100 mgKOH/g, and (ii) a polyester resin containing 20% by mass or more of a unit represented by Formula (F1) in the polyester.

Abstract: A particle dispersion liquid includes: an aqueous medium; at least one of a compound represented by Formula (I) and a compound represented by Formula (II), which is dispersed in the aqueous medium; and at least one of: (i) a polymer having alkyl (meth) acrylate as a structural unit, the alkyl (meth) acrylate containing an alicyclic hydrocarbon group having a bridged bond, the polymer having an acid value ranging from 6 mgKOH/g to 100 mgKOH/g, and (ii) a polyester resin containing 20% by mass or more of a unit represented by Formula (F1) in the polyester.

Abstract: A resin composition includes a cellulose ester resin having a weight average molecular weight of 10,000 to 75,000; sulfuric acid; and at least one metal element selected from the group consisting of Group 1 elements and Group 2 elements, wherein a ratio of the sum of the content [M1] of the Group 1 element and the content [M2] of the Group 2 element to the total amount of all the elements according to fluorescent X-ray spectroscopy is 0.052% by weight, and a molar ratio of the content [M1] of the Group 1 element, the content [M2] of the Group 2 element, and the content [S] of sulfur atoms (S) according to fluorescent X-ray spectroscopy satisfies a relationship of Expression 1: ([M1]/2)+[M2]?1.5×[S].

Abstract: A resin composition includes a cellulose ester resin having a weight average molecular weight of 10,000 to 75,000; sulfuric acid; and at least one metal element selected from the group consisting of Group 1 elements and Group 2 elements, wherein a ratio of the sum of the content [M1] of the Group 1 element and the content [M2] of the Group 2 element to the total amount of all the elements according to fluorescent X-ray spectroscopy is 0.052% by weight, and a molar ratio of the content [M1] of the Group 1 element, the content [M2] of the Group 2 element, and the content [S] of sulfur atoms (S) according to fluorescent X-ray spectroscopy satisfies a relationship of Expression 1: ([M1]/2)+[M2]?1.5×[S].

Abstract: An aqueous ink contains a colorant, an aqueous solvent, and as an infrared absorber, a compound represented by general formula (I): where Rb, Rc, and Rd are each independently alkyl, and Ra is a group represented by general formula (I-R): where Re is hydrogen or methyl, and e is an integer of 0 to 3.

Abstract: An aqueous ink contains a colorant, an aqueous solvent, and as an infrared absorber, a compound represented by general formula (I): where Rb, Rc, and Rd are each independently alkyl, and Ra is a group represented by general formula (I-R): where Re is hydrogen or methyl, and e is an integer of 0 to 3.

Abstract: A resin composition includes a compound represented by the following Formula (I) and a resin: wherein, in Formula (I), Ra represents a group represented by Formula (I-R), and each of Rb, Rc, and Rd independently represents an alkyl group; and in Formula (I-R), Re represents a hydrogen atom or a methyl group, and e represents an integer of 0 to 3.

Abstract: A character recognition apparatus includes an extracting unit that extracts a numerical value reading region in which a numerical value that is a character string of a numeral is read from an image that is a character recognition target, a character recognizing unit that performs character recognition on the extracted numerical value reading region and obtains plural recognition candidates for each numerical value, and a selecting unit that selects a potential candidate from the plural recognition candidates on the basis of a numerical value range set for each numerical value reading region.

Abstract: A recording medium includes a surface in which an infrared absorptance is less than a threshold value; and plural dot images that records information by an arrangement pattern formed on the surface, in which the infrared absorptance is equal to or more than the threshold value, and a specular gloss to infrared rays is equal to or less than 22%.

Abstract: Provided is an image determination device including a sheet detecting unit that detects a sheet on which a code image is printed, a first acquiring unit that acquires information on the code image and an absorption wavelength of the code image, a second acquiring unit that acquires a reading unit necessary for decoding a code portion of the code image, a third acquiring unit that acquires a document image of an electronic document, a dividing unit that divides the document image into plural blocks corresponding to the reading unit, a detecting unit that detects a block in which an image portion of the document image that uses a color having an absorption band at the absorption wavelength of the code image overlaps with the code portion of the code image as an undecodable block, and an output unit that outputs a warning indicating the generation of an undecodable area.

Abstract: An image forming apparatus includes a first image-forming material that contains a colored pigment and a second image-forming material that contains the colored pigment having a concentration lower than that of the first image-forming material, a first image forming unit that forms a code image representing encoded information on a recording medium using the second image-forming material, and a second image forming unit that forms a non-code image at a position other than the position of the code image on the recording medium using an image-forming material other than the second image-forming material.

Abstract: A character recognition apparatus includes an extracting unit that extracts a numerical value reading region in which a numerical value that is a character string of a numeral is read from an image that is a character recognition target, a character recognizing unit that performs character recognition on the extracted numerical value reading region and obtains plural recognition candidates for each numerical value, and a selecting unit that selects a potential candidate from the plural recognition candidates on the basis of a numerical value range set for each numerical value reading region.

Abstract: An image inspection device includes an acquiring section that reads an image formed on an image carrying medium using an image forming material and acquires first inspection image information; and a decoloring section that leaves an infrared absorbent on the image carrying medium, and decolors a decolorable composition on the image carrying medium by physical treatment or chemical treatment, wherein the image forming material contains the infrared absorbent having an optical absorption peak in an infrared region, and the image forming material contains the decolorable composition having an optical absorption peak in a visible region in a color-developed state and being decolored by physical treatment or chemical treatment.

Abstract: An image forming apparatus includes an obtaining unit, an image forming section, and a controller. The obtaining unit obtains color signals containing color components the number of which is n, n being a natural number. The image forming section forms an image on a medium, the image being based on the color signals obtained by the obtaining unit. The controller performs control so that colors in a color gamut that is not reproduced if area coverage modulation, not density modulation, is used for expression are included in the image by expressing densities of the n color components contained in the color signals obtained by the obtaining unit by using density modulation and area coverage modulation.

Abstract: A perimidine-based squarylium dye contains a compound represented by Formula (I), the compound containing an isomer A and satisfying the following formula: Pa?95(%) wherein the isomer A is an isomer of the peak shown in the longest retention time among all peaks due to isomers obtained by analysis of the compound by means of reversed-phase high-performance liquid chromatography, and Pa represents a value of the peak area of the isomer A relative to the peak area of all peaks.

Abstract: Provided is an image determination device including a sheet detecting unit that detects a sheet on which a code image is printed, a first acquiring unit that acquires information on the code image and an absorption wavelength of the code image, a second acquiring unit that acquires a reading unit necessary for decoding a code portion of the code image, a third acquiring unit that acquires a document image of an electronic document, a dividing unit that divides the document image into plural blocks corresponding to the reading unit, a detecting unit that detects a block in which an image portion of the document image that uses a color having an absorption band at the absorption wavelength of the code image overlaps with the code portion of the code image as an undecodable block, and an output unit that outputs a warning indicating the generation of an undecodable area.

Abstract: An image inspection device includes an acquiring section that reads an image formed on an image carrying medium using an image forming material and acquires first inspection image information; and a decoloring section that leaves an infrared absorbent on the image carrying medium, and decolors a decolorable composition on the image carrying medium by physical treatment or chemical treatment, wherein the image forming material contains the infrared absorbent having an optical absorption peak in an infrared region, and the image forming material contains the decolorable composition having an optical absorption peak in a visible region in a color-developed state and being decolored by physical treatment or chemical treatment.

Abstract: An image forming material includes a perimidine-substituted squarylium dye that has a structure represented by the following formula (I) and shows diffraction peaks at least at Bragg angles (2?±0.2°) of 17.7°, 19.9°, 22.1°, 23.2° and 24.9° in its X-ray powder diffraction spectrum measured by irradiation with X rays generated from a Cu target with a wavelength of 1.

Abstract: A perimidine-based squarylium dye contains a compound represented by Formula (I), the compound containing an isomer A and satisfying the following formula: Pa?95(%) wherein the isomer A is an isomer of the peak shown in the longest retention time among all peaks due to isomers obtained by analysis of the compound by means of reversed-phase high-performance liquid chromatography, and Pa represents a value of the peak area of the isomer A relative to the peak area of all peaks

Abstract: The present invention provides a recording medium containing a first image formed with a first recording material; and a second image comprising a first region formed with a second recording material having approximately the same light fastness as that of the first recording material, and a second region formed with a third recording material having higher light fastness than that of the first recording material, a color of the second region being a color corresponding to any stage of a process of discoloration of the first region.