Abstract: In an ion elution unit, a drive circuit applies a voltage between electrodes to elute metal ions from the electrodes. Polarities of the electrodes are reversed cyclically with a voltage application halt period placed in-between. A current detection circuit detects the current flowing between the electrodes. A check of operation of the current detection circuit is carried out before the application of a voltage to the electrodes is started. The operation of the current detection circuit is started when a predetermined period of time passes after the application of a voltage to the electrodes is started.

Abstract: An ion elution unit generates metal ions by applying a voltage between electrodes. Terminals are formed integrally to the electrodes. An interval between the electrodes becomes narrower from an upstream side to a downstream side with respect to a water current flowing through an inside of a casing of the ion elution unit. Terminals that are so laid as to run from the electrodes out of a casing of the ion elution unit are disposed on an upstream side with respect to a water current flowing through an inside of the casing.

Abstract: An ultrasonic washing apparatus, comprising a body part, an ultrasonic vibrating horn exposed to the outside of the body part, a liquid feeding means for feeding liquid to the ultrasonic vibrating horn, and a mounting means for mounting the body part at any position, the mounting means further comprising a support arm to be installed on an installed object such as a full automatic washing machine, wherein the support arm is extendable, energized in a retracting direction by a helical tension spring, and can stop an extension at any length with a fixing screw, and the body part can change an attitude or a position relative to the mounting means.

Abstract: In an ion elution unit, a drive circuit applies a voltage between electrodes to elute metal ions from the electrodes. Polarities of the electrodes are reversed cyclically with a voltage application halt period placed in-between. A current detection circuit detects the current flowing between the electrodes. A check of operation of the current detection circuit is carried out before the application of a voltage to the electrodes is started. The operation of the current detection circuit is started when a predetermined period of time passes after the application of a voltage to the electrodes is started.

Abstract: An ion elution unit generates metal ions by applying a voltage between electrodes. Terminals are formed integrally to the electrodes. The terminals protrude downward through the bottom wall of the casing of the ion elution unit. The space between the electrodes becomes narrower from the upstream side to the downstream side along with the water current flowing through the inside of the casing. The casing has a water inlet and a water outlet, the cross-sectional area of the water outlet is smaller than that of the water inlet. The water outlet is disposed at the lowest level in the inner space of the casing. The cross-sectional area of the inner space of the casing gradually decreases from the upstream side to the downstream side.

Abstract: A laundry machine (1) in which metal ions produced by an ion eluting unit (100) can be input into water at the last rinsing step. The time for the last rinsing step at which metal ions are input is longer than that for the step at which no metal ions are input. When metal ions are input, in the rinsing step, a strong flow time and a weak flow time are provided, or a strong flow time and a rest time are provided. If any imbalance during drying rotation of the washing tub (30) after metal ion input is detected, a processing different from that carried out if an imbalance is detected when no metal ions are input is carried out.

Abstract: An ultrasonic washing apparatus, comprising a body part, an ultrasonic vibrating horn exposed to the outside of the body part, a liquid feeding means for feeding liquid to the ultrasonic vibrating horn, and a mounting means for mounting the body part at any position, the mounting means further comprising a support arm to be installed on an installed object such as a full automatic washing machine, wherein the support arm is extendable, energized in a retracting direction by a helical tension spring, and can stop an extension at any length with a fixing screw, and the body part can change an attitude or a position relative to the mounting means.