Abstract: A device for removing, from a processing tank, foreign material that becomes detached from a work when the work is immersed in a processing liquid held in a processing tank. The device includes a grooved part having a plurality of concave and convex shapes formed along a work-conveying direction on at least the bottom surface of the processing tank, a hopper provided in the processing tank, a processing liquid supply pipe which supplies the processing liquid circulating through the hopper to the processing tank, a plurality of branch pipes branched from the processing liquid supply pipe and arranged on ridges of the grooved part, and processing liquid discharge nozzles provided so as to face the hopper at sections of the branch pipes opposing bottom parts of the grooved part.

Abstract: A device for filtering a processing liquid in a processing tank includes an opening for recovering a surface-layer processing liquid on a work-discharging side of the tank, a separating part for recovering an intermediate-layer processing liquid on a work-receiving side of the tank, a hopper for recovering a bottom-layer processing liquid on a bottom surface on the work-receiving side, a first processing liquid discharge nozzle on a bottom surface of the tank and which is oriented in an opposite direction to a work-conveying direction and toward the bottom surface, second processing liquid discharge nozzles on both side surfaces of the processing tank and which are oriented in an opposite direction to the work-conveying direction and toward a work, cyclone devices which filter the processing liquids recovered by the opening, the separating part, and the hopper, and which individually separate foreign material, a separating tank, and a screw conveyor.

Abstract: An electrodeposition tank that pools and enables fluidization and agitation of an electrodeposition paint into which a work is to be immersed, the electrodeposition tank including: a grooved part having a plurality of concave and convex shapes formed along a work-conveying direction on a bottom surface of the electrodeposition tank; an electrodeposition paint supply pipe that circulates and supplies the electrodeposition paint to the electrodeposition tank; a plurality of branch pipes that are arranged on ridges of the grooved part and that branch off the electrodeposition paint supply pipe; and electrodeposition paint discharge nozzles provided oriented upstream in the work-conveying direction at a section of the branch pipes that opposes bottom parts of the grooved part.

Abstract: A device for filtering a processing liquid in a processing tank includes an opening for recovering a surface-layer processing liquid on a work-discharging side of the tank, a separating part for recovering an intermediate-layer processing liquid on a work-receiving side of the tank, a hopper for recovering a bottom-layer processing liquid on a bottom surface on the work-receiving side, a first processing liquid discharge nozzle on a bottom surface of the tank and which is oriented in an opposite direction to a work-conveying direction and toward the bottom surface, second processing liquid discharge nozzles on both side surfaces of the processing tank and which are oriented in an opposite direction to the work-conveying direction and toward a work, cyclone devices which filter the processing liquids recovered by the opening, the separating part, and the hopper, and which individually separate foreign material, a separating tank, and a screw conveyor.

Abstract: A device for removing, from a processing tank, foreign material that becomes detached from a work when the work is immersed in a processing liquid held in a processing tank. The device includes a grooved part having a plurality of concave and convex shapes formed along a work-conveying direction on at least the bottom surface of the processing tank, a hopper provided in the processing tank, a processing liquid supply pipe which supplies the processing liquid circulating through the hopper to the processing tank, a plurality of branch pipes branched from the processing liquid supply pipe and arranged on ridges of the grooved part, and processing liquid discharge nozzles provided so as to face the hopper at sections of the branch pipes opposing bottom parts of the grooved part.

Abstract: Problem to be Solved To provide a processing tank with a simple construction which enables fluidization and agitation of a processing liquid in order to reliably prevent settling of the processing liquid.

Abstract: In a cascade amplifier, the collector of a first transistor with a grounded emitter and the emitter of a second transistor are connected. A third transistor has the base grounded at radio frequency, the emitter connected to the base of the first transistor, and the collector connected to the collector of the second transistor. A fourth transistor connected to the emitter of the third transistor works as a constant current source. A bias changeover circuit supplies base biases of these transisiors. In this constitution, by using the bias changeover circuit for changing over the bias depending on the cut-off condition of the first transistor, the gain is changed over by making either the cascade amplifier or the third transistor operate.

Abstract: A semiconductor integrated circuit is provided in which a negative voltage generation circuit capable of supplying a memory cell transistor substrate with a stable negative voltage, independently of the fluctuation of a power source voltage or environmental conditions and the process conditions etc., is realized easily, and in which the data holding time of a memory can be secured sufficiently, and the power consumption is reduced.