Nippon Chemi-Con Corporation

Hitachi Channel Solutions, Corp.

Hitachi-Omron Terminal Solutions, Corporation

Takeshi Kageyama

Jun Ishiguro

Masahiko Shinohara

Takeshi Makino

A card reader includes a card conveyance path comprising upper and a lower conveyance paths to convey a card inserted into a device; and a reading unit that reads information on the card. Lower concave and convex portions are provided on an upper surface of the lower conveyance path behind the reading unit. Upper concave and convex portions are provided on a lower surface of the upper conveyance path to be fitted to the lower concave and convex portion. A pressing unit provides a fitted state of the lower and upper concave and convex portions when no object is present. A detection sensor detects a state where an interval between the lower and upper concave and convex portions is widened. The detection sensor detects the state where the interval is widened, to recognize that an object is inserted between the lower and upper concave and convex portions.

Card reader and foreign object detection method for card reader

There is provided an electrode material for electrolytic capacitor that attains an unprecedentedly high capacitance. The electrode material for electrolytic capacitor comprises a layer of valve metal particles furnished on the surface thereof with an oxide film, the layer having a porosity of 20 to 60% and a specific surface area of 30&#xd7;10to 400&#xd7;10cm/cm, wherein the valve metal particles are mixed together, with the particle diameters exhibiting a given distribution at least within the range of 0.005 to 0.1 &#x3bc;m, and form a base material surface, and wherein the valve metal consists of aluminum, and wherein the composition ratio of Al/O of the layer of valve metal particles furnished on the surface thereof with the oxide film is within the range of 2.0 to 5.5. The electrode material thus realizes high capacitance.

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Tokyo, Japan

Takeshi Kageyama