Osipchuk
Yuri Osipchuk, Foster City, CA US
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20140045206 | APPARATUS AND METHOD FOR SEPARATING MATERIALS OF DIFFERENT DENSITIES - A device for separating materials of different densities is provided. A cup body has an internal cavity configured to hold media. An inner wall defines a central body region having an upper and lower end. The upper end is wider than the lower end. An interior shoulder circumscribes the upper end of the central body region. The interior shoulder defines a neck region above the central body region and a shoulder trap below the neck region. The shoulder trap circumscribes the upper end of the central body region and is wider than the neck region. When the device is spun about a central axis, the media travels upward along the inner wall toward the shoulder trap. Relatively more dense material in the media is collected in the shoulder trap, and relatively less dense material is expelled from the device through an opening above the neck region. | 02-13-2014 |
Yuri V. Osipchuk, Foster City, CA US
Patent application number | Description | Published |
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20130060478 | VOLTAGE OFFSET CORRECTION IN HIGH-THROUGHPUT ELECTROPHYSIOLOGICAL MEASUREMENT SYSTEM - A computer-implemented method for controlling command voltages applied to electrodes during an electrophysiology measurement procedure using a high-throughput measurement system is provided. An initial command voltage is applied to the electrodes to obtain baseline currents respectively associated with the electrodes. A common offset voltage is determined based on the baseline currents, and an adjusted command voltage is determined based on the initial command voltage and the common offset voltage. The adjusted command voltage is applied to at least one of the electrodes to obtain an adjusted current measured by the electrode. A local offset voltage for the electrode is determined based on the adjusted current measured by the electrode. A subsequent command voltage applied to the electrode incorporates the common offset voltage and the local offset voltage. | 03-07-2013 |
20130250088 | MULTI-COLOR CONFOCAL MICROSCOPE AND IMAGING METHODS - A confocal microscope, which comprises a light source for producing excitation light including a plurality of different spectral components; an optical device for providing the excitation light as a spectrally dispersed beam and outputting the different spectral components as a number of elongated beams an object holder for holding an object; an objective for focusing the elongated beams of light on the object as parallel, spaced-apart lines of excitation light corresponding to the different spectral components; and a detector for simultaneously detecting emission light produced by parallel lines emitted by the object due to its illumination by spaced apart parallel lines of the excitation light. | 09-26-2013 |
Yuri Vladimirovich Osipchuk, Foster City, CA US
Patent application number | Description | Published |
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20100259805 | METHODS AND SYSTEMS FOR REDUCING SCANNER IMAGE DISTORTION - A scanning apparatus includes a sample stage that faces an optical scanning head or stage at a scanning plane; a first actuator that translates the sample stage or the optical stage along a first axis that is substantially parallel to the scanning plane; a sensor that senses the deviation from the first axis; and a controller coupled to the first actuator, the sensor, and the optical stage. The controller is programmed to operate the first actuator and the optical stage to acquire a scan of a sample at the sample stage; and modify the scan to compensate for a deviation from the first axis in translation of the sample stage or the optical stage along the first axis by the first actuator. Also included are methods of modifying scans to compensate for translation deviations. | 10-14-2010 |
20110109946 | VIBRATION CONTROL IN SCANNERS - A scanning apparatus ( | 05-12-2011 |
20110251102 | HIGH THROUGHPUT SCREENING OF ION CHANNELS - Multi-well plates having contoured well designs allow multi-stage high throughput parallel assaying of ion channels or ion transporters. A well of a multi-well plate has a bottom region that is sized and shaped to simultaneous accommodate a sensing electrode and a pipette for delivering, e.g., test compounds, wash fluid, and optionally ligands. Such multi-well plates may be coupled with an instrument having a pipette head and an electrode plate. Such arrangement facilitates fluidic contact between cells and fluids provided via a pipette. It also facilitates washing of wells with buffers or other wash solutions to allow serial exposure of test cells to various reagents or other stimuli. Generally, the design allows control and test experiments to be performed on the same cell (or cells) in a single well. | 10-13-2011 |
20130143766 | HIGH THROUGHPUT SCREENING OF ION CHANNELS - Multi-well plates having contoured well designs allow multi-stage high throughput parallel assaying of ion channels or ion transporters. A well of a multi-well plate has a bottom region that is sized and shaped to simultaneous accommodate a sensing electrode and a pipette for delivering, e.g., test compounds, wash fluid, and optionally ligands. Such multi-well plates may be coupled with an instrument having a pipette head and an electrode plate. Such arrangement facilitates fluidic contact between cells and fluids provided via a pipette. It also facilitates washing of wells with buffers or other wash solutions to allow serial exposure of test cells to various reagents or other stimuli. Generally, the design allows control and test experiments to be performed on the same cell (or cells) in a single well. | 06-06-2013 |