Abstract: An acoustic device includes a first acoustic unit and a second acoustic unit. The first acoustic unit includes: a first loudspeaker module that includes a first sound emitting surface provided to face the second acoustic unit; and a first sound absorbing module that includes a first sound absorbing surface provided around the first sound emitting surface to face the second acoustic unit. The second acoustic unit includes: a second loudspeaker module that includes a second sound emitting surface provided to face the first acoustic unit; and a second sound absorbing module that includes a second sound absorbing surface provided around the second sound emitting surface to face the first acoustic unit.

Abstract: A vehicle power supply system includes a power source control device that executes a process of switching a connection state of a driving circuit to the main power source and an auxiliary power source including; a process of switching the connection state so as to transition to a backup state as a voltage decrease of the main power source occurs, and a process of switching the connection state so as to transition to a normal state as the voltage decrease of the main power source is resolved. After a voltage decrease of the main power source occurs, a turning-side control device of a steering control unit sets an output-limited state for a turning-side motor. The output-limited state is canceled upon the power source control device completing switching of the connection state so as to transition.

Abstract: A network of a new configuration is flexibly constructed while maintaining a stable operation in the network. A management device includes: a detection unit that detects addition of a function unit to a network including one or a plurality of on-vehicle function units; an acquisition unit that acquires function unit information of a new function unit that is the function unit the addition of which has been detected by the detection unit and function unit information of each on-vehicle function unit, each piece of function unit information including information regarding network configuration of a layer lower than an application layer; and a generation unit that, based on the pieces of function unit information acquired by the acquisition unit, generates configuration information of a new network that is the network further including the new function unit.

Abstract: A Bluetooth module is disposed behind a keyboard when viewed from a user side with the user facing this tube printer. Furthermore, the Bluetooth module is disposed behind a display when viewed from the user side with the user facing the tube printer. Furthermore, at least part of the Bluetooth module is disposed overlapping the display in the longitudinal direction of the keyboard.

Abstract: A sampling circuit includes: a first capacitor including a first terminal and a second terminal; a second capacitor including a third terminal and a fourth terminal; a first input node configured to receive a first input voltage that is one of a differential input voltage; a second input node configured to receive a second input voltage that is the other of the differential input voltage; a first switch circuit configured to be provided between the first input node and the first terminal; a second switch circuit configured to be provided between the second input node and the third terminal; a third switch circuit configured to be provided between the first terminal and the third terminal; and a fourth switch circuit configured to be provided between the second terminal and the fourth terminal.

Abstract: The present invention provides a composition of a fire extinguishing and fire-spread preventing agent that reduces a burden on the environment and is suitable for extinguishment and fire-spread prevention (re-ignition prevention) of large-scale fire(s), such as a forest fire, and a fire extinguishing and fire-spread preventing agent using this composition. The composition of a fire extinguishing and fire-spread preventing agent and the fire extinguishing and fire-spread preventing agent relating to the present invention are characterized by containing salt of phosphorus, potassium salt and a dispersion medium.

Abstract: Provided is an additive for concrete in which viscosity of a cement composition is low and fluidity is high at an initial stage of casting even when the additive is added, and long-term strength of concrete or the like improves by the addition. A cement additive comprising a water-absorbent resin, wherein the water-absorbent resin is formed by polymerizing a monomer mixture containing no less than 50 mol % of a nonionic non-crosslinkable monomer and no less than 0.1 mol % of a nonionic crosslinkable monomer, and a content of an anionic monomer in the monomer mixture is no more than 20 mol %.

Abstract: The present invention provides a novel metal corrosion inhibitor containing a compound having a specific structure.

Abstract: The present invention provides a novel metal corrosion inhibitor containing a compound having a specific structure.

Abstract: Provided is a cement additive that can suppress the production of Glauber's salt as a by-product, and that can express excellent retention when turned into a cement composition. Also provided is a cement composition including such cement additive. Also provided is a raw material for a cement additive to be used in such cement additive. The cement additive of the present invention includes: a polycarboxylic acid-based copolymer (A) having a structural unit (I) derived from an unsaturated polyalkylene glycol-based monomer (a) represented by the specific general formula (1) and a structural unit (II) derived from an unsaturated carboxylic acid-based monomer (b) represented by the specific general formula (2); and an alkanolamine compound (B), in which a content of the structural unit (II) with respect to a total amount of the structural unit (I) and the structural unit (II) is 60 mol % or less.

Abstract: Provided is a cement additive that can significantly improve the strength of a cured product of a cement composition over a long time period. Also provided is a cement composition including such cement additive. The cement additive of the present invention includes: a compound (A) having a weight-average molecular weight of more than 3,000, and having a structure in which 5 moles or more of an alkylene oxide is added to 1 mole of a polyhydric alcohol; and an alkanolamine compound (B).

Abstract: Provided is a cement additive that can suppress the production of Glauber's salt as a by-product, and that can express excellent retention when turned into a cement composition. Also provided is a cement composition including such cement additive. Also provided is a raw material for a cement additive to be used in such cement additive. The cement additive of the present invention includes: a polycarboxylic acid-based copolymer (A) having a structural unit (I) derived from an unsaturated polyalkylene glycol-based monomer (a) represented by the specific general formula (1) and a structural unit (II) derived from an unsaturated carboxylic acid-based monomer (b) represented by the specific general formula (2); and an alkanolamine compound (B), in which a content of the structural unit (II) with respect to a total amount of the structural unit (I) and the structural unit (II) is 60 mol % or less.

Abstract: An analog-to-digital conversion circuit includes capacitors coupled to a common line. Each capacitor has a capacitance less than or equal to a capacitance sum of lower order capacitors. Switches selectively supply an analog input signal, a first reference voltage, or a second reference voltage to the capacitors in response to a control signal. A reset switch supplies the common line with a first voltage between the first and second reference voltages. A comparator compares the first voltage with a second voltage at the common line to generate a determination signal. A conversion control circuit generates the control signal and a multiple-bit digital signal based on the determination signal. A measurement control circuit measures the capacitance of the capacitor corresponding to an upper order bit of the digital signal using lower order capacitors. A correction circuit corrects the digital signal based on the measured capacitance to generate a digital output signal.

Abstract: An analog-to-digital conversion circuit includes capacitors coupled to a common line. Each capacitor has a capacitance less than or equal to a capacitance sum of lower order capacitors. Switches selectively supply an analog input signal, a first reference voltage, or a second reference voltage to the capacitors in response to a control signal. A reset switch supplies the common line with a first voltage between the first and second reference voltages. A comparator compares the first voltage with a second voltage at the common line to generate a determination signal. A conversion control circuit generates the control signal and a multiple-bit digital signal based on the determination signal. A measurement control circuit measures the capacitance of the capacitor corresponding to an upper order bit of the digital signal using lower order capacitors. A correction circuit corrects the digital signal based on the measured capacitance to generate a digital output signal.

Abstract: [Summary] [Object] This invention is to provide a steel back plate and a disc brake pad for a brake pad of such as an automotive car, where the back plate improves the adhesive strength between the friction material and the back plate and the disc brake pad has sufficient adhesive strength. [Means to Resolve] The steel back plate for the disc brake pad has the compound layer with the depth of 5 ?m to 20 ?m that is formed by a gas nitriding method or a gas soft nitriding method on the back plate surface on which the friction material is adhered. The compound layer has a porous layer with a thickness of 40% or more than a depth of a compound layer at the front surface layer side of the compound layer and the thickness of the oxide layer formed on the surface layer is 1 ?m or less.

Abstract: A light source module of the present invention is configured such that there is a through hole (23) in one longitudinal end portion of a light guide (21) that constitutes a light guide plate, into which through hole (23) a positioning pin (24) for positioning an LED light source (12) and the light guide (21) fits. Further, a guide (9) is provided to the other end portion of the light guide (21), which guide (9) restrains the light guide (21) in a direction of a short side but does not restrain the light guide (21) in a direction of a long side. This makes it possible to provide a light source module that can reduce warping and cracking caused by expansion of a light guide, and an electronic apparatus including the light source module.

Abstract: Provided are a lighting apparatus capable of improving heat-releasing performance while maintaining structural strength, subduing luminance unevenness due to uneven heat distribution, and allowing the device to be thinner, and an image display apparatus including the lighting apparatus. A heat-conducting member (6) includes: a light-source supporter having a plane facing a light-incident plane; and a plate section having a plane facing a light-emitting plane and a plane facing a heat-releasing member (5), the light-source supporter being adjacent to the plate section. On the light-source supporter, a light source (7) is positioned on the plane facing the light-incident plane so as to face the light-incident plane, the plane of the plate section which faces the heat-releasing member (5) contacts a plane of the heat-releasing member (5) which faces a light guide member, and a centroid of the plate section deviates along a direction parallel to both the light-incident and light-emitting planes.

Abstract: A light source module (10), as a surface light source device of the present invention, includes: a plurality of light guides (21) provided such that their respective longitudinal directions are arranged along each other with a gap (22) therebetween; light sources; and a support member (31) for supporting the light guides (21) with the gap (22) of a predetermined dimension, a light-exit surface (21d) of a thick part (21c) of the light guide (21) protruding farther in the light-exit side than a protrusion (31a) of the support member (31) protruding along the gap (22). It is possible to provide a surface light source device facilitating a high quality display, in which a light guide plate is divided into a plurality of light guides and the light guides are provided such that their respective longitudinal directions are arranged along each other, and an electronic apparatus including the surface light source device.

Abstract: A light source module of the present invention is configured such that there is a through hole (23) in one longitudinal end portion of a light guide (21) that constitutes a light guide plate, into which through hole (23) a positioning pin (24) for positioning an LED light source (12) and the light guide (21) fits. Further, a guide (9) is provided to the other end portion of the light guide (21), which guide (9) restrains the light guide (21) in a direction of a short side but does not restrain the light guide (21) in a direction of a long side. This makes it possible to provide a light source module that can reduce warping and cracking caused by expansion of a light guide, and an electronic apparatus including the light source module.

Abstract: A light source module of the present invention includes: a plurality of light guide bodies (21) provided in parallel to one another with respect to a longitudinal direction; light sources (30) each causing light to enter each of the plurality of light guide bodies from at least one end surface in a longitudinal direction of the each of the light guide bodies (21); a light source wiring boards (32) having the light sources (30) and lines provided thereon, the lines being for electrically connecting the light sources (30) and including positive potential lines and negative potential lines; and an LED driver circuit (40) for performing a drive for turning on the light sources (30). Each of the light sources (30) provided to the light guide bodies (21) are independently driven by the LED driver circuit (40) so that each of the light sources (30) is independently turned on.