Murata Manufacturing Co., Ltd.

Japan Capacitor Industrial Co., Ltd.

Osamu Yokokura

Tomoki Nobuta

Kazumasa Fujimoto

Hiroshi Takagi

Kazuo Kishida

Kazutoyo Horio

Akira Shiratori

Toshiaki Takata

Akihiro Nomura

Suguru Nakano

Yuji Kishida

A solid electrolytic capacitor that includes a columnar metal core material having a valve function, the metal core material having a first end surface and a second end surface opposed to the first end surface, at least one of the first end surface and the second end surface having an area larger than that of a cross section of a central portion of the metal core material in a lengthwise direction of the metal core material, and the metal core material having a surface partially provided with a porous layer including an oxide film; a cathode layer including a conductive polymer, the cathode layer being electrically connected to the porous layer, first external terminals electrically connected to the first end surface and the second end surface, respectively; and a second external terminal different in polarity from the first external terminals and electrically connected to the cathode layer.

Solid electrolytic capacitor and method for manufacturing solid electrolytic capacitor

A solid electrolytic capacitor that includes a plurality of linear conductors arranged in parallel and made of a valve action metal in which a dielectric layer is formed on a surface of the valve action metal; a conductive polymer layer covering the plurality of linear conductors and shared by linear conductors; a conductor layer covering conductive polymer layer; an anode terminal in contact with end faces of the plurality of linear conductors; and a cathode terminal electrically connected to conductor layer.

Solid electrolytic capacitor and method for manufacturing same

A solid electrolytic capacitor that includes at least one capacitor element having a linear-shaped valve metal substrate that extends in an axial direction and includes a porous portion on a surface of a core portion, a dielectric layer on a surface of the porous portion, and a cathode layer on the dielectric layer; a cathode terminal including a recessed portion having an inner wall surface extending in the axial direction, the capacitor element is disposed in the recessed portion, and the cathode layer is electrically connected to the inner wall surface; an anode terminal electrically connected to the core portion of the capacitor element; and a sealing material covering the capacitor element.

Solid electrolytic capacitor and method of manufacturing the same

A carbon paste that includes at least a carbon filler, and a thermosetting resin including a phenoxy resin. The phenoxy ratio X in the thermosetting resin is within a range of 20 Wt %&#x2264;X&#x2264;70 Wt %, and the carbon filler content ratio Y with respect to a total of the carbon filler and the thermosetting resin is within a range of 30 Wt %&#x2264;Y&#x2264;70 Wt %.

Carbon paste and capacitor element for a solid electrolytic capacitor using carbon paste

A solid electrolytic capacitor that includes a capacitor element having a linear through conductor made of a valve function metal, a dielectric layer disposed on the through conductor, and a cathode-side functional layer disposed on the dielectric layer. The through conductor includes a core portion and a porous portion covering a peripheral surface of the core portion. Both end faces of the core portion of the through conductor are in contact with a pair of anode terminals on the pair of end faces of the body, respectively. A cathode terminal is electrically connected to the cathode-side functional layer.

Solid electrolytic capacitor

An elastic wave duplexer includes a transmission filter chip and a reception filter chip each defined by an elastic wave filter chip and flip-chip bonded to a laminated board. A coil-shaped line including coil-shaped line patterns is provided inside the laminated board. The coil-shaped line defines an impedance matching circuit. In plan view, the transmission filter chip is disposed on one side of a center line passing through the approximate center of the laminated board and extending between a first edge and a second edge, and the reception filter chip is disposed on the other side of the center line. The coil-shaped line is disposed on the side on which the reception filter chip is disposed.

Elastic wave duplexer

There is disclosed a composition for a ceramic substrate comprising a mixture of: powdered borosilicate-based glass comprising about 5% to 17.5% by weight of B O , about 28% to 44% by weight of SiO , 0% to about 20% by weight of Al O , and about 36% to 50% by weight of MO (where MO is at least one selected from the group consisting of CaO, MgO, and BaO), and a powdered ceramic; in which the amount of the powdered borosilicate-based glass is about 40% to 49% by weight based on the total amount of the composition for a ceramic substrate, and the amount of the powdered ceramic is about 60% to 51% by weight based on the total amount of the composition for a ceramic substrate.

Growing community of inventors

Nagaokakyo, Japan

Osamu Yokokura