Abstract: A film capacitor for positioning at a direct current (DC) terminal at a front end of an inverter having a plurality of switching elements, can include a first member, and a second member surrounding the first member, in which a first thickness of the first member is greater than a second thickness of the second member.

Abstract: A solid electrolytic capacitor (1) includes an anode foil (2a) having formed thereon an oxide film, a cathode foil (2c), and a separator (2d), and is equipped with a solid electrolyte (20) formed of an electroconductive polymer compound in a fine particle form, and a water-soluble compound solution (30) introduced to surround the solid electrolyte (20), the solid electrolyte (20) contains a polyol compound having a molecular weight of less than 200 and a number of hydroxy groups of 4 or more as a first water-soluble compound (2f1), the water-soluble compound solution (30) contains one kind or multiple kinds of a glycol compound in a liquid form as a second water-soluble compound (2f2), and the second water-soluble compound (2f2) has an average molecular weight of less than 400.

Abstract: There is provided a capacitor (1) including a main body (10), in which a plurality of dielectric layers (13) and a plurality of electrode layers (11) are alternatively laminated, and an external electrode (20) that is connected to at least part of the main body. Before forming an external electrode by metal spraying (metallikon) on the main body, at least part of a connection surface (30) where the metal spraying is performed is scanned with a laser beam (51) so that scanning marks (55) composed of concave-convex structures (35) are formed by the laser beam on at least part of the connection surface.

Abstract: To provide an electrolytic capacitor having a configuration that achieves a low impedance by increasing the content of water, satisfies a withstand voltage of 400 V or more, and is capable of enhancing the long-term reliability. Provided as a solution is an electrolytic capacitor (1) including an electrolytic solution (2e) containing ethylene glycol, 10 to 30% by mass of water, and 1 to 12% by mass of an amine salt of a carboxylic acid, having added thereto 0.01 to 2% by mass of one or more kind of ammonium hypophosphite, an amine salt of hypophosphorous acid, and hypophosphorous acid, the carboxylic acid being a polycarboxylic acid having a chain hydrocarbon skeleton and a molecular weight of 140 to 500.

Abstract: A capacitor (1) includes a main body (10) in which a dielectric layer (13) and an electrode layer (11) are laminated, and an external electrode (20) connected to at least a part of the main body. The electrode layer (11) includes a heavy edge portion (16) with a connecting part (18), which connects to the external electrode and is thicker than an internal electrode part (15). The capacitor (1) further includes an edge support layer (12) that is made of metal and is laminated on the heavy edge portion (16).

Abstract: There is provided a method of manufacturing a capacitor (1), the capacitor (1) including a main body (10) in which dielectric layers (13) and electrode layers (11) are alternatively laminated, with at least part of the main body connected to external electrodes (20). The method of manufacturing includes a step (89) of forming an electrode layer on a dielectric layer. The forming of the electrode layer includes: a step (83) of forming a first metal layer including a connecting part, which is connected to the external electrode, and an internal electrode part; and a step (85) of forming a second metal layer on the connecting part. In addition, the method includes a step (82) of patterning to form the first pattern and a step (84) of patterning to form the second pattern using a second material that evaporates when the second metal layer is formed.

Abstract: A capacitor (1) includes a main body (10) in which dielectric layers (13) and electrode layers (11) are laminated, and an external electrode (20) connected to at least a part of the main body by metallikon. Each dielectric layer has a thickness Dt at a connection boundary (18) where the main body is connected to the external electrode, each electrode layer has a thickness Et at the connection boundary, and a ratio between the thickness Dt and the thickness Et is at least a first value DEmin. The first value DEmin may satisfy the following conditions with respect to a minimum set value Dt1 of the thickness Dt DE ? min ? a × Dt ? 1 + b 0.1 ?m ? Dt ? 1 ? Dt ? 1.5 ?m where a and b are coefficients.

Abstract: A film capacitor for positioning at a direct current (DC) terminal at a front end of an inverter having a plurality of switching elements, can include a first member, and a second member surrounding the first member, in which a first thickness of the first member is greater than a second thickness of the second member.

Abstract: A film capacitor for positioning at a direct current (DC) terminal at a front end of an inverter having a plurality of switching elements, can include a first member; and a second member surrounding the first member, in which a second dielectric resistance of the second member is higher than a first dielectric resistance of the first member.

Abstract: A solid electrolytic capacitor (1) includes an anode foil (2a) having formed thereon an oxide film, a cathode foil (2c), and a separator (2d), and is equipped with a solid electrolyte (20) formed of an electroconductive polymer compound in a fine particle form, and a water-soluble compound solution (30) introduced to surround the solid electrolyte (20), the solid electrolyte (20) contains a polyol compound having a molecular weight of less than 200 and a number of hydroxy groups of 4 or more as a first water-soluble compound (2f1), the water-soluble compound solution (30) contains one kind or multiple kinds of a glycol compound in a liquid form as a second water-soluble compound (2f2), and the second water-soluble compound (2f2) has an average molecular weight of less than 400.

Abstract: A thin film high polymer laminated capacitor includes: a laminated chip including dielectric layers, and internal electrode layers including first metal layers including a first metal vapor-deposited on the dielectric layers, and second metal layers including a second metal vapor-deposited on the first metal layers. The dielectric layers and the internal electrode layers being laminated and bonded alternately, and external electrodes formed on one end and the other end of the laminated chip. The laminated chip having a first region having the first metal layers formed on the dielectric layers, which are laminated alternately, and edge regions having the second metal layers formed on layers connected to the one end and layers connected to the other end in the first metal layers, which are laminated alternately, the first region having a capacitor function region, and the edge region having a heavy edge.

Abstract: A film capacitor for positioning at a direct current (DC) terminal at a front end of an inverter having a plurality of switching elements, can include a first member; and a second member surrounding the first member, in which a second dielectric resistance of the second member is higher than a first dielectric resistance of the first member.

Abstract: Provided is a solid electrolytic capacitor having a lower leakage current than a conventional solid electrolytic capacitor. The solid electrolytic capacitor includes: an anode foil having a surface on which an oxide film is formed; a cathode foil; and a separator disposed between the anode foil and the cathode foil, wherein a solid electrolyte made of a conductive high-molecular weight compound in a fine particle form and a water-soluble high-molecular weight compound solution which is formed of a water-soluble high-molecular weight compound in a liquid form, water and alcohol having a nitro group are introduced into a gap formed between the anode foil and the cathode foil in a state where the water-soluble high-molecular weight compound solution surrounds the solid electrolyte.

Abstract: A solid electrolytic capacitor includes: an anode foil on which an oxide film is formed; a cathode foil; and a separator between the anode and cathode foils, wherein a solid electrolyte in a fine particle form made of a conductive high molecular weight compound and a water-soluble high-molecular weight compound in a liquid form are introduced into a gap between the anode and cathode foils in a state where the water-soluble high-molecular weight compound in a liquid form surrounds the solid electrolyte, and a ratio of an area that the solid electrolyte occupies in the gap is set to a value which falls within a range of 1 vol % to 30 vol %, and a ratio of an area that the water-soluble high-molecular weight compound in a liquid form occupies in the gap is set to a value which falls within a range of 10 vol % to 99 vol %.

Abstract: In a method of manufacturing a thin-film polymer multi-layer capacitor, in a vacuum chamber, a resin thin film layer forming step of forming a resin thin film layer by forming a monomer layer by vapor-depositing a monomer and thereafter by curing the monomer layer by irradiating an electron beam onto the monomer layer, and a metal thin film layer forming step of forming a metal thin film layer by vapor-depositing a metal material are alternately performed on a rotary drum thus forming a multi-layer body in which the resin thin film layer and the metal thin film layer are alternately laminated on the rotary drum. In the resin thin film layer forming step, the monomer layer is formed using a dimethacrylate compound having an alicyclic hydrocarbon skeleton expressed by a following chemical formula (1) as the monomer. wherein, symbol A indicates an organic group containing alicyclic hydrocarbon.

Abstract: Provided is a solid electrolyte capacitor which includes: a bottomed cylindrical housing which includes a bottom surface portion and a side surface portion raised from the bottom surface portion, and has an opening portion formed on an edge portion of the side surface portion; a capacitor element which is accommodated in the inside of the housing, and is formed by winding an anode foil and a cathode foil in an overlapping state with a separator interposed therebetween and by filling a space formed between the anode foil and the cathode foil with a solid electrolyte; a sealing member which seals the opening portion of the housing in a state where the capacitor element is accommodated in the inside of the housing; and a composite sheet which is arranged between the bottom surface portion of the housing and the capacitor element, and has the structure where a resin made of a high-molecular weight compound is retained in a fiber sheet containing at least cellulose fibers.

Abstract: A solid electrolyte capacitor includes a bottomed cylindrical housing having a bottom surface portion, a side surface portion raised from the bottom surface portion and an opening portion formed on an end portion of the side surface portion; a capacitor element housed in the inside of the housing, the capacitor element being formed by winding an anode foil and a cathode foil in an overlapping state with a separator interposed therebetween and by filling a solid electrolyte between the anode foil and the cathode foil; and a sealing member sealing the opening portion of the housing in a state where the capacitor element is housed in the inside of the housing, wherein an oxide film repairing body made of a hydrophilic synthetic resin is disposed at least one of between the bottom surface portion and the capacitor element of the housing and between the capacitor element and the sealing member.

Abstract: A solid electrolyte capacitor includes an anode foil on a surface of which an oxide film is formed, a cathode foil, and a separator. A gap between the anode foil and the cathode foil is filled with a solid electrolyte which contains a conductive fine particles containing a conductive polymer compound and a hydrophilic polymer compound. The hydrophilic polymer compound has a structure expressed by a following chemical formula (I) and a structure expressed by a following chemical formula (II). —(R1—O)—??(I) —(R2—O)—??(II) In the formula (I) and the formula (II), R1 and R2 are groups selected from the set consisting of a substituted or unsubstituted alkylene, a substituted or unsubstituted alkenylene, and a substituted or unsubstituted phenylene, and represent mutually different groups.

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 the capacitor and a substrate provided with a circuit using the capacitor.

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).