Abstract: An inkjet recording ink which includes: a carbon black; a dispersant, wherein the dispersant is a sodium naphthalenesulfonate-formalin condensate; resin emulsion; and water, in which the resin emulsion contains a resin which is at least one of a urethane resin and a styrene-acryl resin, and the ink satisfies the following relationship: 20?B?A?50, where A(nm) represents a particle diameter D90 of particles contained in dispersion containing the carbon black, the dispersant, and water, which is before added with the resin emulsion, and B(nm) represents a particle diameter D90 of particles contained in the ink.

Abstract: An image pickup device includes a transparent member, an image pickup element chip including a photodiode, and a fixing member arranged around the image pickup element chip, a space being surrounded by the transparent member, the image pickup element chip, and the fixing member. The image pickup element chip includes a semiconductor substrate including a penetrating electrode penetrating through a first main face of the semiconductor substrate on a side of the transparent member and a second main face of the semiconductor substrate opposite the first main face. In an orthogonal projection with respect to the transparent member, the penetrating electrode is arranged in a fixing area corresponding to the fixing member, and a boundary with an area where the thickness of the semiconductor substrate is smaller than that of the semiconductor substrate in a first area corresponding to the space is arranged within the fixing area.

Abstract: An optical sensor includes: a light-emitting unit; a light-receiving unit that receives light radiated from the light-emitting unit and reflected from a detection target and that outputs an output value in response to the light received; and a correcting unit that corrects the output value of the light-receiving unit when receiving the light reflected from the detection target based on the output value of the light-receiving unit obtained by irradiating a detection area of the optical sensor with light without any light reflective objects being present in the detection area.

Abstract: A touch panel includes a light guide including a first face for detecting the position of an object in contact therewith and a second face opposite the first face, and a line sensor for receiving light emitted from a side face of the light guide plate, wherein, of light irradiated from the second face side, the light guide guides toward the side face the portion of light reflected by the object.

Abstract: A circuit member for a vehicle-mountable junction box is accommodated in the vehicle-mountable junction box. The circuit member is a metal core board including a metal core plate as a core. The core plate includes a separated part which is separated from a main part by a separating groove filled with an insulating material. Electronic components are mounted on both of a part including the main part and a part including the separated part.

Abstract: An inkjet recording ink, which contains: carbon black; a surfactant; water; a water-soluble organic solvent; and particles formed of an anionic self-emulsifying poly(ether urethane) resin, wherein the carbon black contains first carbon black whose surface has been treated with an anionic surfactant and second carbon black which has been coated with a resinous polymer, where a mass ratio of the first carbon black to the second carbon black is 10/90 to 90/10, and wherein the anionic surfactant is a naphthalenesulfonic acid-formaldehyde condensate.

Abstract: A piezoelectric vibration element is provided which includes a piezoelectric substrate formed of a thickness slip based piezoelectric material and a metal layer formed on a surface of the piezoelectric substrate. In the piezoelectric vibration element, a surface of the metal layer is covered by a layer formed by chemical absorption with a material having a nonbonding electron pair.

Abstract: A touch panel includes a light guide including a first face for detecting the position of an object in contact therewith and a second face opposite the first face, and a line sensor for receiving light emitted from a side face of the light guide plate, wherein, of light irradiated from the second face side, the light guide guides toward the side face the portion of light reflected by the object.

Abstract: A method of manufacturing an optical sensor includes the steps of providing a semiconductor wafer having a plurality of pixel areas; forming a grid-like rib enclosing each pixel area on the semiconductor wafer, the grid-like rib having a predetermined width and being formed from a fixing member; providing a light-transmissive substrate having a gap portion on a main surface thereof, the gap portion having at least one of a groove having a width smaller than the grid-like rib and a plurality of through-holes; fixing the semiconductor wafer and the light-transmissive substrate such that the grid-like rib and the gap portion face each other; and cutting the fixed semiconductor wafer and light-transmissive substrate into pieces such that each piece includes one pixel area.

Abstract: A piezoelectric vibration element that includes a piezoelectric substrate formed of a thickness shear based piezoelectric material and a metal layer formed on a surface of the piezoelectric substrate. In the piezoelectric vibration element, a surface of the metal layer is covered by a layer formed by chemical absorption with a material having a nonbonding electron pair.

Abstract: An inkjet recording ink set, which contains at least: a black pigment ink; and a color pigment ink, wherein the black pigment ink contains a black pigment treated with an anionic surfactant, and a black pigment coated with a resinous polymer, and water, and the black pigment ink is a pigment dispersion liquid where the black pigment treated with the anionic surfactant and the black pigment coated with the resinous polymer are dispersed in the water, and wherein the color pigment ink contains a color pigment, a nonionic surfactant, and water, and the color pigment ink is a pigment dispersion liquid where the color pigment is dispersed in the water with assistance of the nonionic surfactant.

Abstract: Polymer electrolyte membranes for use in fuel cells are produced by first graft polymerizing acrylic acid derivatives or vinylketone derivatives as monomers on polymer substrates and by then performing selective conversion to a sulfonic acid group of hydrogen atoms on the carbon atom adjacent to the carbonyl in the ketone or carboxyl group on the graft chains.

Abstract: The present invention provides a colorant dispersion for a recording ink containing at least a dispersant, a colorant, and water, wherein the dispersant is a polycarboxylic acid dispersant containing units represented by formulae (1) to (3): where R1, R2, and R4 are selected from a hydrogen atom and CH3; R3 is selected from a hydrogen atom and a C1-C3 alkyl group; R5 represents a C1-C3 alkyl group; AO and BO represent a C2-C3 oxyalkylene group; M is selected from alkali metal, alkali earth metal, ammonium, and organic amine; m represents an integer of 1 to 30; and n represents an integer of 5 to 50.

Abstract: The object of the present invention is to provide a water-based pigment dispersion containing a pigment, a dispersing agent, a resin emulsion, and water, the water-based pigment dispersion is subjected to a heat treatment. The present invention also provides a water-based pigment ink containing the water-based pigment dispersion, a dispersing agent, a resin emulsion, and water.

Abstract: The inkjet ink includes a carbon black, a surfactant, water, and a water soluble organic solvent. The carbon black has a residue on sieve of from 0.1 ppm to 50 ppm, which is determined based on DIN ISO 787/18, and a statistical thickness surface area (STSA) of from 70 m2/g to 90 m2/g.

Abstract: An image forming apparatus forms a plurality of tone patterns of different colors, each of which containing a plurality of toner patches having different toner densities. Some of the toner patches in each of the tone patterns are formed with a predetermined fixed developing bias and the rest of the toner patches in each of the tone patterns are formed with developing biases set based on previous developing biases that have been obtained through a previous control process. The largest toner density of the toner patches in each of the tone patterns is determined based on a magnitude relation of previous index values obtained through the previous control process.

Abstract: An inkjet recording ink including a pigment dispersion liquid containing at least a first carbon black and a dispersant, a second carbon black, a penetrant, a wetting agent and water, wherein the first carbon black has an average particle diameter D50 of 70 nm to 180 nm as measured by a dynamic light scattering method and has a particle diameter standard deviation equal to or smaller than ½ of the average particle diameter, wherein the dispersant is a condensate of naphthalene sulfonic acid and formalin, wherein the second carbon black is carbon black coated with a resin, and wherein the penetrant is a 2-ethyl-1,3-hexandiol.

Abstract: A technology is disclosed by which, when plural content data are successively transmitted from a server apparatus to a reproduction apparatus through a client apparatus, if the transmission is interrupted, the transmission of the content data can be resumed from the point at which the transmission is interrupted. The transfer device includes a storage section for storing a transmission object list including content identification information corresponding to plural content data to be transmitted from a server apparatus to a reproduction apparatus connected to a client apparatus through the client apparatus. A reception section successively receives the content data from the server apparatus. A transmission section successively transfers the successively received content data to the reproduction apparatus. A control section deletes, every time content data is transferred, the corresponding content identification information from the transmission object list stored in the storage section.

Abstract: The present invention provides an inkjet recording ink containing at least a pigment dispersion liquid A containing at least a first carbon black, a dispersant, and water, and a self-dispersible pigment dispersion liquid B which contains a second carbon black having a surface functional group, wherein a mass ratio (Ac:Bc) of the amount of the first carbon black (Ac) in the pigment dispersion liquid A to the amount of the second carbon black (Bc) having a surface functional group in the self-dispersible pigment dispersion liquid B is 98:2 to 50:50.

Abstract: An image forming apparatus is disclosed that includes an image density control unit that performs control operations based on an image density control condition that is adjustably set to control an output image to have a predetermined image density, an image density control condition modifying unit that calculates a modified image density control condition based on information on an amount of toner exchanged at a developing apparatus within a predetermined period and a parameter for image density control condition calculation and sets the modified image density control condition as the image density control condition to be used by the image density control unit, and a parameter modifying unit that modifies the parameter for image density control condition calculation used by the image density control condition modifying unit based on a toner pattern detection result obtained by detecting a toner pattern formed on a belt member.