Abstract: There is provided a device (1) for surface mounting that has a substrate (10) and a capacitor element loaded on a loading-side surface of the substrate and is integrally molded including the substrate (10) and the capacitor element using a packaging resin. The substrate (10) includes a first terminal electrode (51) electrically connected to a first electrode of the capacitor element and a second terminal electrode (52) electrically connected to a second electrode of the capacitor element, at least part of a mounting-side surface (12) on an opposite side to the loading-side surface of the substrate (10) is exposed on a mounting surface (2) of the device (1), and the first terminal electrode (51) and the second terminal electrode (52) are adjacently disposed around an entire circumference of the mounting surface (2) of the device (1).

Abstract: There is provided a device for surface mounting that has a substrate and a capacitor element loaded on a loading-side surface of the substrate and is integrally molded including the substrate and the capacitor element using a packaging resin. The substrate includes a first terminal electrode electrically connected to a first electrode of the capacitor element and a second terminal electrode electrically connected to a second electrode of the capacitor element, at least part of a mounting-side surface on an opposite side to the loading-side surface of the substrate is exposed on a mounting surface of the device, and the first terminal electrode and the second terminal electrode are adjacently disposed around an entire circumference of the mounting surface of the device.

Abstract: Provided is a multilayer capacitor that can be manufactured with high yields and whose warpage is suppressed. The multilayer capacitor includes two or more laminated bodies which are bonded together, the two or more laminated bodies each including resin layers and metal layers which are alternately laminated a plurality of times in a thickness direction and each being warped and having front and rear surfaces covered with surface layers containing a resin material, one of the front and rear surfaces being formed of a first surface as a smooth surface having no recess portion, another of the front and rear surfaces being formed of a second surface having a recess portion, in which at least two adjacent laminated bodies are bonded together at the first surfaces or the second surfaces. Also provided are a manufacturing method for the multilayer capacitor, and a circuit board and an electronic device which use the multilayer capacitor.

Abstract: The capacitor includes at least: a capacitor body; two lead wires provided on one end surface; a projecting portion provided at a substantially central portion of another end surface; and at least two relief valves provided on the another end surface. On the another end surface, the at least two relief valves are arranged in substantially rotational symmetry with respect to the projecting portion. Further, an axial center line of the projecting portion and an axial center line of the capacitor substantially correspond to each other. Also provided are a capacitor case to be used for the capacitor and a substrate provided with a circuit using the capacitor.

Abstract: Provided is a multilayer capacitor that can be manufactured with a high yield, and wherein the warp thereof can be limited. The multilayer capacitor, manufacturing method thereof, circuit board, and electronic device are characterized by having resin layers and metal layers laminated alternately a plurality of times in the thickness direction, having the front and back faces thereof covered with surface layers containing resin material, having either the front face or the back face comprised of a first face (30) that is a gently sloping face without any recess section, having the other face comprised of a second face (32) with recess sections (34), and characterized by having two or more laminated bodies (20A, 20B), with warps, pasted together, and by further having at least two adjacent laminated bodies (20A, 20B) pasted together with either the first faces (30) thereof, or with the second faces (32) thereof.

Abstract: An electrolytic solution, for use in an electrolytic capacitor, comprising a solvent and a solute wherein water accounts for 20 to 100% by weight of the solvent and the total solute content is from 1.5 to 44% by weight, and an electrolytic capacitor comprising a capacitor element, a case containing the capacitor element, and a sealant with which the case is sealed, the capacitor element comprising a pair of electrode foils each comprising a dielectric, a separator for isolating the electrode foils from each other, and the above electrolytic solution filled between the electrode foils.

Abstract: The electrical properties and high-temperature characteristics of an electrolytic capacitor are rendered satisfactory by addition of a compound with an unsaturated bond-containing chain which serves to absorb hydrogen gas generated by reaction between the aluminum electrode foil and the electrolyte solution. The electrolytic capacitor contains the unsaturated compound which allows hydrogen addition, or the electrolytic solution, which comprises a solvent composed of 10-80 wt % of an organic solvent and 90-20 wt % water and at least one electrolyte selected from the group consisting of carboxylic acids or their salts and inorganic acids or their salts, also comprises one or more unsaturated compounds which are water-soluble or soluble in polar and protic polar solvents.

Abstract: The present invention relates to a method for producing a multilayered film capacitor prepared by laminating a dielectric layer and a metallic layer comprising aluminum, characterized in comprising a step of treating a capacitor element with a solution containing at least a phosphoric acid compound, especially any one of phosphoric acids, phosphates and phosphoric esters, more specifically an aluminum hydrogenphosphate, or further characterized in that the aluminum hydrogenphosphate is aluminum monohydrogenphosphate (Al2(HPO4)3) or aluminum dihydrogenphosphate (Al(H2PO4)3), or further characterized in comprising a step of heating the capacitor element after the step of treating the capacitor element with the solution containing aluminum hydrogenphosphate, moreover characterized in that the maximum temperature of the surface of the capacitor element, during the step of heating, is from 200° C. to 280° C.

Abstract: An electrolytic capacitor using an electrolytic solution constituted by a solvent consisting of from 20 to 80 wt % of an organic solvent and from 80 to 20 wt % of water, the electrolytic capacitor comprising a nitro or nitroso compound except for nitrophenol, nitrobenzoic acid, dinitrobenzoic acid, nitrophenone and nitroanisole, in a portion inside the capacitor other than in the electrolytic solution. The electrolytic capacitor exhibits a low impedance, excellent low temperature stability and good life characteristics, and further, is excellent in the effect to absorb a hydrogen gas, even when use is made of an electrolyte solution employing mixed solvent having a great water content and when an electrolytic capacitor is used under a high temperature condition.

Abstract: A power supply unit capable of varying power supplied to a light source at timings determined by synchronization signals is provided. The power supply unit comprises an interface that receives a plurality of types of synchronization signals with different pulse widths and a control unit that changes a setting of output power supplied by the power supply unit in accordance with the pulse widths of the plurality of types of synchronization signals. The control unit includes obtaining a standard time interval from a cycle of a standard type of synchronization signal that has a longest pulse width, parsing for determining type of each synchronization signal, redefining supply power values corresponding to respective types of synchronization signals, and changing the setting of output power of the power supply unit to a supply power value corresponding to a type of the synchronization signal.

Abstract: A power supply unit capable of varying power supplied to a light source at timings determined by synchronization signals is provided. The power supply unit comprises an interface that receives a plurality of types of synchronization signals with different pulse widths and a control unit that changes a setting of output power supplied by the power supply unit in accordance with the pulse widths of the plurality of types of synchronization signals. The control unit includes obtaining a standard time interval from a cycle of a standard type of synchronization signal that has a longest pulse width, parsing for determining type of each synchronization signal, redefining supply power values corresponding to respective types of synchronization signals, and changing the setting of output power of the power supply unit to a supply power value corresponding to a type of the synchronization signal.

Abstract: An apparatus supplies power to at least one discharge lamp. The apparatus includes a buck converter for regulating power supplied to at least one discharge lamp having a switching element driven by PWM pulses, and a control unit for supplying PWM pulses to the buck converter. The control unit includes a function for controlling an output power of the buck converter so as to be constant using PWM pulses of a first frequency; and a function for controlling an output voltage of the buck converter so as to be maximum using PWM pulses of a second frequency that is lower than the first frequency. The buck converter is capable of operating in discontinuous mode based on the PWM pulses of the second frequency.

Abstract: The electrical properties and high-temperature characteristics of an electrolytic capacitor are rendered satisfactory by addition of a compound with an unsaturated bond-containing chain which serves to absorb hydrogen gas generated by reaction between the aluminum electrode foil and the electrolyte solution. The electrolytic capacitor contains the unsaturated compound which allows hydrogen addition, or the electrolytic solution, which comprises a solvent composed of 10-80 wt % of an organic solvent and 90-20 wt % water and at least one electrolyte selected from the group consisting of carboxylic acids or their salts and inorganic acids or their salts, also comprises one or more unsaturated compounds which are water-soluble or soluble in polar and protic polar solvents.

Abstract: An apparatus supplies power to at least one discharge lamp. The apparatus includes a buck converter for regulating power supplied to at least one discharge lamp having a switching element driven by PWM pulses, and a control unit for supplying PWM pulses to the buck converter. The control unit includes a function for controlling an output power of the buck converter so as to be constant using PWM pulses of a first frequency; and a function for controlling an output voltage of the buck converter so as to be maximum using PWM pulses of a second frequency that is lower than the first frequency. The buck converter is capable of operating in discontinuous mode based on the PWM pulses of the second frequency.

Abstract: The electrical properties and high-temperature characteristics of an electrolytic capacitor are rendered satisfactory by addition of a compound with an unsaturated bond-containing chain which serves to absorb hydrogen gas generated by reaction between the aluminum electrode foil and the electrolyte solution. The electrolytic capacitor contains the unsaturated compound which allows hydrogen addition, or the electrolytic solution, which comprises a solvent composed of 10-80 wt % of an organic solvent and 90-20 wt % water and at least one electrolyte selected from the group consisting of carboxylic acids or their salts and inorganic acids or their salts, also comprises one or more unsaturated compounds which are water-soluble or soluble in polar and protic polar solvents.

Abstract: An electrolytic solution, for use in an electrolytic capacitor, comprising a solvent and a solute wherein water accounts for 20 to 100% by weight of the solvent and the total solute content is from 1.5 to 44% by weight, and an electrolytic capacitor comprising a capacitor element, a case containing the capacitor element, and a sealant with which the case is sealed, the capacitor element comprising a pair of electrode foils each comprising a dielectric, a separator for isolating the electrode foils from each other, and the above electrolytic solution filled between the electrode foils.

Abstract: The present invention relates to a method of manufacturing a flat aluminum electrolytic capacitor comprising a separator impregnated with an electrolytic solution, an anode foil and a cathode foil, a flat capacitor element that has external lead-out terminals connected respectively to the anode foil and the cathode foil, and a flexible casing that houses the capacitor element and is hermetically sealed, said method comprising the steps of encasing the capacitor element in the flexible casing and applying aging treatment before hermetically sealing the casing, and hermetically sealing the flexible casing, and also relates to a flat aluminum electrolytic capacitor comprising a separator impregnated with the electrolytic solution, the anode foil and the cathode foil, the flat capacitor element that has the external lead-out terminals connected respectively to the anode foil and the cathode foil, and the flexible casing that houses the capacitor element and is hermetically sealed, wherein the electrolytic capacit

Abstract: The present invention relates to a method of manufacturing a flat aluminum electrolytic capacitor comprising a separator impregnated with an electrolytic solution, an anode foil and a cathode foil, a flat capacitor element that has external lead-out terminals connected respectively to the anode foil and the cathode foil, and a flexible casing that houses the capacitor element and is hermetically sealed, said method comprising the steps of encasing the capacitor element in the flexible casing and applying aging treatment before hermetically sealing the casing, and hermetically sealing the flexible casing, and also relates to a flat aluminum electrolytic capacitor comprising a separator impregnated with the electrolytic solution, the anode foil and the cathode foil, the flat capacitor element that has the external lead-out terminals connected respectively to the anode foil and the cathode foil, and the flexible casing that houses the capacitor element and is hermetically sealed, wherein the electrolytic capacit

Abstract: The present invention relates to a method of manufacturing a flat aluminum electrolytic capacitor comprising a separator impregnated with an electrolytic solution, an anode foil and a cathode foil, a flat capacitor element that has external lead-out terminals connected respectively to the anode foil and the cathode foil, and a flexible casing that houses the capacitor element and is hermetically sealed, said method comprising the steps of encasing the capacitor element in the flexible casing and applying aging treatment before hermetically sealing the casing, and hermetically sealing the flexible casing, and also relates to a flat aluminum electrolytic capacitor comprising a separator impregnated with the electrolytic solution, the anode foil and the cathode foil, the flat capacitor element that has the external lead-out terminals connected respectively to the anode foil and the cathode foil, and the flexible casing that houses the capacitor element and is hermetically sealed, wherein the electrolytic capacit

Abstract: The present invention relates to a method of manufacturing a flat aluminum electrolytic capacitor comprising a separator impregnated with an electrolytic solution, an anode foil and a cathode foil, a flat capacitor element that has external lead-out terminals connected respectively to the anode foil and the cathode foil, and a flexible casing that houses the capacitor element and is hermetically sealed, said method comprising the steps of encasing the capacitor element in the flexible casing and applying aging treatment before hermetically sealing the casing, and hermetically sealing the flexible casing, and also relates to a flat aluminum electrolytic capacitor comprising a separator impregnated with the electrolytic solution, the anode foil and the cathode foil, the flat capacitor element that has the external lead-out terminals connected respectively to the anode foil and the cathode foil, and the flexible casing that houses the capacitor element and is hermetically sealed, wherein the electrolytic capacit