Murata Manufacturing Co., Ltd.

Ken Ito

Noriyuki Inoue

Kazuo Hattori

Hiromasa Saeki

Koichi Kanryo

Kensuke Aoki

A capacitor having a conductive porous substrate with at least two electrostatic capacitance forming sections, each of the at least two electrostatic capacitance forming sections including a porous portion of the conductive porous substrate, a dielectric layer on the porous portion, and an upper electrode on the dielectric layer. The at least two electrostatic capacitance forming sections are electrically connected in series by the conductive porous substrate.

Capacitor

A capacitor that includes a conductive porous base material; a dielectric layer; and an electrode. The conductive porous base material, the dielectric layer, and the upper electrode are laminated together to constitute an effective part that accumulates charges in the dielectric layer when a voltage is applied between the conductive porous base material and the electrode. The conductive porous base material includes at least one groove having a width of 10 &#x3bc;m or more at &#xbd; of a depth of the at least one groove.

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Nagaokakyo, Japan

Ken Ito