Patent application number | Description | Published |
20130112900 | CLEANING APPARATUS, MEASUREMENT METHOD AND CALIBRATION METHOD - A calibration method for calibrating a measurement device for measuring a concentration of a gas dissolved in a liquid includes varying the concentration of the gas dissolved in the liquid, and predetermining, as a reference concentration, a concentration of the gas at which an intensity of luminescence produced when the liquid is irradiated with ultrasonic waves shows a peak. The liquid is illuminated with ultrasonic waves while varying the concentration of the gas in the liquid and a measured value is measured, using the measurement device, as a concentration of the gas in the liquid when the intensity of the luminescence shows a peak. The measurement device is calibrated based on the measured value and the reference concentration. | 05-09-2013 |
20130160791 | ULTRASONIC CLEANING METHOD - An ultrasonic cleaning method for cleaning an object in a solution having a gas dissolved therein includes irradiating ultrasonic waves to the solution having a first dissolved gas concentration. While the ultrasonic waves are being irradiated to the solution, a dissolved gas concentration in the solution is changed from the first dissolved gas concentration to a second dissolved gas concentration that is lower than the first dissolved gas concentration such that sonoluminescence occurs. | 06-27-2013 |
20130192627 | CLEANING METHOD - A cleaning method for cleaning an object includes preparing a cleaning liquid. A dissolved nitrogen concentration in the cleaning liquid is adjusted based on a size of a foreign substance to be removed from the object with a highest removal efficiency. The object is dipped in the cleaning liquid while irradiating the cleaning liquid with ultrasonic waves. | 08-01-2013 |
20130192628 | CLEANING APPARATUS, EQUIPMENT, AND METHOD - A cleaning apparatus for cleaning an object includes a cleaning tank holding a cleaning liquid, the object being cleanable by the cleaning liquid. A coupling tank holding an intermediate medium is in contact with a portion of the cleaning tank. An ultrasonic wave generation unit is disposed at the coupling tank and configured to ultrasonically vibrate the cleaning liquid via the intermediate medium. A modification unit is configured to modify a difference in sonic velocity between the cleaning liquid and the intermediate medium. | 08-01-2013 |
20130312785 | ULTRASONIC CLEANING METHOD AND ULTRASONIC CLEANING APPARATUS - An ultrasonic cleaning method for cleaning an object in a liquid in which a gas is dissolved includes preparing the liquid in which the gas is dissolved and stirring the liquid while irradiating the liquid with the ultrasonic waves so as to realize a state where bubbles containing the gas dissolved in the liquid continue to be generated. The object is cleaned in the state where the bubbles containing the gas continue to be generated. | 11-28-2013 |
20130312786 | ULTRASONIC CLEANING METHOD AND ULTRASONIC CLEANING APPARATUS - An ultrasonic cleaning method for cleaning an object in a liquid in which a gas is dissolved includes preparing the liquid in which the gas is dissolved. The object is cleaned while applying ultrasonic waves to the liquid so that a ratio determined by dividing a vibration strength of the liquid at a fourth-order frequency of the ultrasonic waves by a vibration strength of the liquid at a fundamental frequency of the ultrasonic waves is larger than 0.8/1000. | 11-28-2013 |
20130312788 | ULTRASONIC CLEANING METHOD AND ULTRASONIC CLEANING APPARATUS - An ultrasonic cleaning method for cleaning an object in a liquid in which a first gas is dissolved includes preparing the liquid in which the first gas is dissolved and introducing a second gas into the liquid while irradiating the liquid with ultrasonic waves so as to realize a state where bubbles containing the first gas dissolved in the liquid continue to be generated. The object is cleaned in the state where the bubbles containing the first gas continue to be generated. | 11-28-2013 |
20130312789 | ULTRASONIC CLEANING METHOD AND ULTRASONIC CLEANING APPARATUS - An ultrasonic cleaning method for cleaning an object in a liquid in which a gas is dissolved includes preparing the liquid in which the gas is dissolved and cleaning the object while irradiating the liquid with ultrasonic waves so that a region, where a spatial rate of change of a refractive index of the liquid in which the gas is dissolved is large relative to a case where ultrasonic waves are not applied, appears along a direction in which the ultrasonic waves travel. | 11-28-2013 |