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US 5,949,639 AGranted
Capacitor element for solid electrolytic capacitor, device and process for making the same
AssigneeRohm Co., Ltd.
InventorsTakahiro Maeda, Shouichi Yanagi, Chojiro Kuriyama
Life of this patent
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Abstract
A capacitor element for a solid electrolytic capacitor includes a capacitor chip which is a compacted mass of valve metal powder, and an anode wire projecting from a first end face of the capacitor chip. The capacitor chip includes at least one side face which is formed with at least one depression extending toward but short of a second end face of the capacitor chip opposite to the first end face.
Claims11
A capacitor element for a solid electrolytic capacitor comprising:
- a capacitor chip which is a compacted mass of valve metal powder, the capacitor chip having a first end face and a second end face opposite to the first end face;
- and
- an anode wire projecting from the first end face of the capacitor chip;
- wherein the capacitor chip includes at least one side face which is formed with at least one depression extending toward but short of the second end face of the capacitor chip.
1 more element
A compacting device for making a capacitor element comprising:
- a lower die member having an upwardly open shaping groove;
- an upper die member for supporting an anode wire to project downwardly, the upper die member being movable toward and away from the lower die member;
- and
- an opposite pair of presser die members slidably fitted in the shaping groove of the lower die member for reciprocative movement toward and away from each other, at least one of the presser die members having a front surface formed with at least one projection.
1 more element
Dependencies are inferred from the claim text.