Patent application number | Description | Published |
20080250621 | Solid Electrolytic Capacitor Element, Method for Manufacturing Same, and Solid Electrolytic Capacitor - The invention produces a solid electrolytic capacitor using a solid electrolytic capacitor element by a method comprising forming a dielectric layer on the surface of an electric conductor, forming a semiconductor layer containing electrically conducting polymer on the dielectric layer and forming an electrode layer thereon, wherein the dielectric layer is formed by chemical formation in an electrolytic solution containing a dopant. | 10-16-2008 |
20090027834 | SOLID ELECTROLYTE CAPACITOR - The present invention relates to a solid electrolyte capacitor having a small size, a high capacitance, a low ESR and an excellent LC value, which includes a jacketed capacitor element obtained by sequentially stacking a dielectric oxide film layer, a semiconductor layer and an electrically conducting layer on a surface of a valve-acting metal sintered body or electrically conducting oxide sintered body connected with an anode lead, wherein the thickness of the semiconductor layer in the vicinity of the anode lead-connection point on the sintered body face connected with an anode lead is 5 μm or less, and also relates to an electronic circuit and electronic device using the capacitor. | 01-29-2009 |
20090052118 | SOLID-ELECTROLYTE CAPACITOR MANUFACTURING DEVICE AND MANUFACTURING METHOD - The invention provides an apparatus for producing solid electrolytic capacitors having uniform properties with excellent ESR value efficiently at low costs and a production process using the apparatus. The production process using the apparatus is characterized in that a plurality of conductors for producing solid electrolytic capacitors are fixed to a jig for producing capacitors, the jig is transferred to above treatment baths to immerse the conductors in treatment solution in each of the baths sequentially and electric currents are passed to the conductors therein to thereby form a dielectric layer and a semiconductor layer sequentially on the conductors and that on the jig for producing capacitors, a plurality of sockets are provided for inserting and fixing ends of wires leading out of the conductors by using a robotics device. | 02-26-2009 |
20090086412 | METHOD FOR PRODUCING SOLID ELECTROLYTIC CAPACITOR - The invention relates to a method for producing a solid electrolytic capacitor with excellent LC value, comprising sequentially stacking a dielectric oxide film, a semiconductor layer and an electrode layer on a sintered body of conductive powder to which an anode lead is connected and then encapsulating the whole with an outer jacket resin, wherein surface area of a cathode plate used in forming the semiconductor layer on the dielectric oxide film by applying current between the conductor having the dielectric oxide film thereon used as anode and the cathode plate provided in electrolysis solution is made larger by 10 times or more than its apparent surface area to thereby efficiently form the semiconductor layer, a capacitor produced by the method, and electronic circuits and electronic devices using the capacitor. | 04-02-2009 |
20090090997 | SOLID ELECTROLYTIC CAPACITOR ELEMENT AND PRODUCTION METHOD THEREOF - The present invention relates to a production method of solid electrolytic capacitor element, comprising a step of forming a semiconductor layer on a surface of a conductor having a dielectric oxide film thereon and having an anode lead connected thereto by conducting electrolytic oxidation-polymerization using pyrrole dimer at around room temperature, a solid electrolytic capacitor element produced by the method, solid electrolytic capacitor using the element and uses thereof. According to the invention, low-temperature polymerizability of pyrrole, which is inexpensive, can be suppressed, whereby the invention enables production of solid electrolytic capacitor elements having a semiconductor layer formed in industrially advantageous manner. | 04-09-2009 |
20090195968 | SOLID ELECTROLYTIC CAPACITOR - A dielectric layer and a solid electrolyte layer are formed on the surface of a positive electrode member composed of a metallic material having a valve action or a conductive oxide. Then, a conductive carbon paste, and a conductive metal paste comprising a metal conductive powder and an acrylic resin having a weight average molecular weight of 60,000 or less are laminated, and thus a conductor layer is formed. By doing so, a solid electrolytic capacitor element is obtained. This solid electrolytic capacitor element is sealed with resin, and a large-capacity solid electrolytic capacitor is thereby obtained in which even when it is subjected to thermal stress caused by soldering, an equivalent series resistance (ESR) and a leakage current are not increased. | 08-06-2009 |
20090241311 | JIG FOR PRODUCING CAPACITOR, PRODUCTION METHOD FOR CAPACITOR AND CAPACITOR - The present invention provides a capacitor production method where an electric conductor having a dielectric layer formed thereon is used as one electrode and a semiconductor layer is formed by energization to be the other electrode, comprising the energization performed through a constant current diode, and also provides a jig for producing capacitors, which is used for forming semiconductor layers by energization on two or more electric conductors each having formed on the surface thereof a dielectric layer, the jig comprising two or more current ejection-type constant current sources in accordance with the number of electric conductors, which current sources each has an output electrically connected in series with a connection terminal for the electric conductor. Use of the jig of the present invention, enables production of capacitors including semiconductor as one electrode with a small variation in the capacitance. | 10-01-2009 |
20100208414 | NIOBIUM MONOXIDE POWDER, NIOBIUM MONOXIDE SINTERED BODY AND CAPACITOR USING THE SINTERED BODY - (1) A niobium monoxide powder for a capacitor represented by formula: NbO | 08-19-2010 |
20100213407 | NIOBIUM MONOXIDE POWDER, NIOBIUM MONOOXIDE SINTERED BODY AND CAPACITOR USING THE SINTERED BODY - (1) A niobium monoxide powder for a capacitor represented by formula: NbO | 08-26-2010 |