Chun Young
Chun Young Ahn, Daejeon KR
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20150260196 | FLY WHEEL - Provided is a fly wheel, including: a fly wheel body provided with a receiving part in which air is filled and mounted on driving shaft; a blade radially coupled to the fly wheel body, including a ventilation passage formed therein to be communicated with the receiving part and a puncturing part formed on an outer race thereof to be communicated with the ventilation passage, and generating thrust by discharging the air filled in the receiving part to the puncturing part at the time of rotating the driving shaft; and a check valve installed on the fly wheel body and being opened and closed by a pressure difference between the receiving part and the outside. | 09-17-2015 |
Chun Young Kim, Daejeon KR
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20090234140 | METHOD FOR SEPARATING OF OPTICALLY PURE THIOPHENE COMPOUNDS USING SIMULATED MOVING BED CHROMATOGRAPHY - Disclosed herein is a method of producing an optically active thiophene-based compound using a simulated moving bed adsorption separation process, and more specifically, a method of continuously separating a racemic thiophene-based compound into its optically active thiophene-based compounds having high purity, through optical resolution using the simulated moving bed process. According to the method of the current invention, a racemic mixture of a thiophene-based compound can be continuously separated into its optically active thiophene-based compounds having high purity, which is an intermediate of optically active dorzolamide acting as a topical therapeutic agent for glaucoma, using a simulated moving bed adsorption separation technique, thereby increasing industrial usability. | 09-17-2009 |
Chun Young Kim, Seoul KR
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20130235749 | METHOD DEVICE AND SYSTEM FOR ESTIMATING ACCESS POINTS USING LOG DATA - The present disclosure provides a system, device and method for estimating an AP location using log data. Information, which is not pre-stored in a database when the information is updated, is classified and then location information of an AP is estimated by using log data of a user in such a manner of estimating a location of the AP by using log data of a user in wireless LAN based positioning and thus updating the database for the wireless LAN based positioning, thereby improving positioning accuracy. | 09-12-2013 |
20130235863 | APPARATUS AND METHOD OF MANAGING PERIPHERAL WIRELESS LAN RADIO SIGNAL FOR POSITIONING SERVICE - The present disclosure relates to providing a positioning service by managing a plurality of peripheral wireless LAN signals. The positioning service system collects peripheral wireless LAN radio signals by scanning peripheral access points (APs), stores AP information of each of peripheral wireless LAN radio signals in each lattice cell of a database. When a positioning request signal is received from a terminal, a positioning server of the positioning service extracts AP identification information from included in the peripheral wireless LAN radio signal received from the terminal. By using the extracted AP identification information, the positioning server selects from the database the corresponding lattice cell matching to the stored AP identification information of each of the peripheral wireless LAN radio signals pre-stored. And the positioning server estimates location information of the selected corresponding lattice cell as location information for the terminal. | 09-12-2013 |
Chun Young Oh, Gwangju-City KR
Patent application number | Description | Published |
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20120011875 | Refrigerator - A refrigerator which includes an outer case defining the outer appearance of the refrigerator, the inner case received in the outer case and defining a storage compartment, the insulation member filled in a gap between the outer case and the inner case for heat insulation, and a noise attenuation member disposed between an outer surface of the inner case and the insulation member to induce a sliding movement between the inner case and the insulation member. The insulation member is slidable relative to the insulation member when the inner case expands or contracts in accordance with a variation of temperature, whereby the generation of frictional noise due to friction between the inner case and the insulation member can be greatly reduced. | 01-19-2012 |