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Dong Kwon
Dong Kwon Choi, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20090145358 | DEPOSITION MATERIAL SUPPLYING MODULE AND THIN FILM DEPOSITION SYSTEM HAVING THE SAME - A deposition material supplying module includes a canister configured to define a storage space in which a deposition material is stored, a material flow controller provided with at least one groove receiving the deposition material supplied from the canister and adapted to rotate, and a carrier gas supplying unit configured to supply carrier gas to the material flow controller. The deposition material is filled in the groove and a fixed amount of the deposition material is supplied into the process chamber using the deposition material flow controller. Therefore, it is easy to control an amount of the deposition material supplied to the process chamber and the reliability on the fixed-quantity supply can be improved. | 06-11-2009 |
| 20110100458 | Multi-layer thin film for encapsulation and method thereof - A multi-layer thin film for encapsulation and the method thereof are provided. The multi-layer thin film for encapsulation includes a protective layer composed of aluminum oxide, a single or double barrier layer composed of silicon nitride (SiN | 05-05-2011 |
Dong Kwon Kim, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20090310781 | METHOD AND APPARATUS FOR AUTHENTICATION OF PORTABLE ELECTRONIC DEVICES - A mobile communication terminal connected to the portable electronic device encodes a system serial number and an authentication key, generates an integration secrete key, and transmits the integration secrete key to an authentication center computer. The authentication center computer decodes the integration secrete key, performs authentication registration, encodes a temporary service approval key and a temporary integration authentication key, and transmits the temporary service approval key and the temporary integration authentication key to the mobile communication terminal. The mobile communication terminal decodes the temporary integration authentication key, obtains approval for the relay, and transmits the temporary service approval key to the portable electronic device. The portable electronic device decodes the temporary service approval key, performs authentication for utilizing a service, and applies the temporary service approval key to an application service. | 12-17-2009 |
| 20100132077 | SURFACE ANALYSIS AND MEASUREMENT METHOD BASED ON FLOW RESISTANCE OF FLUID AND ATOMIC FORCE MICROSCOPE USING THE METHOD - Provided is a surface analysis and measurement method based on the flow resistance of a fluid. The method comprises: spraying a fluid on the surface of a sample; identifying and determining if a flow resistance value of the fluid colliding with the sample surface is optimal for the measurement of the surface topography of the sample; setting the determined optimal flow resistance value to a reference value and moving the sample in the X-Y axes to allow the entire surface of the sample to be scanned; varying the position of the sample in the Z axis together with the X-Y axis movement to adjust varying flow resistance values of the fluid along the irregular surface topography of the sample to the set flow resistance value during scanning; and expressing the movement ranges of the sample in the X, Y and Z axes as numerical values and representing the numerical values as brightness values on a computer screen to display the surface topography of the sample. Further provided is an atomic force microscope using the method. | 05-27-2010 |
Dong Kwon Kim, Daejeon KR
| Patent application number | Description | Published |
|---|---|---|
| 20090205807 | INSTALLATION FINS AND INSTALLATION STRUCTURE OF FINS AND A HEAT SINK WITH MOVING FINS INSERTED BETWEEN COOLING FINS - A radiator fin of a heat sink has a shape of a portion of a circle with a small radius which is not overlapped with a circle with a large radius when two circles with different radiuses are overlapped with each other such that centers of the two circles are in a single circle, as a cross sectional shape. An arrangement of radiator fins of a heat sink on a radiator plate, includes at least two radiator fins provides to at least one radiator plate such that centers of inner and outer arcs of circles forming the radiator fins are on a reference line, and an outer arc of one of two adjacent radiator fins moves within a track of an inner arc of the other radiator fin or an inner arc of one radiator fin moves out of a track of an outer arc of the other radiator fin. | 08-20-2009 |
Dong Kwon Lee, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20090078989 | Method of forming silicon nitride at low temperature, charge trap memory device including crystalline nano dots formed by using the same, and method of manufacturing the charge trap memory device - Provided are a method of forming silicon nitride at a low temperature, a charge trap memory device including crystalline nano dots formed by using the same, and a method of manufacturing the charge trap memory device. The method of forming silicon nitride includes loading a substrate into a chamber of a silicon nitride deposition device comprising a filament; increasing a temperature of the filament to a temperature whereby a reactant gas to be injected into the chamber may be dissociated; and injecting the reactant gas into the chamber so as to form a crystalline silicon nitride film or crystalline silicon nitride nano dots on the substrate. In the method, the temperature of the filament may be maintained at 1,400° C.˜2,000° C., and a pressure in the chamber may be maintained at several to several ten torr when the reactant gas in injected into the chamber. | 03-26-2009 |
| 20100136767 | METHOD FOR PRODUCTION OF THIN FILM AND APPARATUS FOR MANUFACTURING THE SAME - A method for manufacturing a thin film is provided. A substrate is loaded into a chamber. A first reaction gas and a second reaction gas are supplied into the chamber. The first reaction gas is dissociated to form crystalline nanoparticles. An amorphous material is inhibited from being formed on the substrate using the second reaction gas. Thereafter, a crystalline thin film is formed from the crystalline nanoparticles provided on the substrate. | 06-03-2010 |
Dong Kwon Lim, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20100069445 | METHOD FOR THE SEPARATION OF S-(-)-AMLODIPINE FROM RACEMIC AMLODIPINE - Disclosed is a method for the separation of S-(−)-amlodipine from a racemic amlodipine. Featuring the use of inexpensive L-tartaric acid as an optical resolution agent and DMAC as a solvent, the separation method allows the resolution of S-(−)-amlodipine from racemic amlodipine at high yield and to a satisfactory enantiomeric excess and thus is economically favorable and applicable to the mass production of the optical isomer. | 03-18-2010 |
| 20100069642 | CRYSTALLINE S-(-)-AMLODIPINE ADIPIC ACID SALT ANHYDROUS AND PREPARATION METHOD THEREOF - Disclosed are crystalline S-(−)-amlodipine adipic acid salt anhydrous and a preparation method thereof. The crystalline S-(−)-amlodipine adipic acid salt anhydrous exhibits excellent physical and chemical properties including non-hygroscopicity, solubility, thermal stability, and photostability, and is superior in formulation processability and long-term storage safety. | 03-18-2010 |
| 20110124008 | NOVEL Au/Ag CORE-SHELL COMPOSITE USEFUL FOR BIOSENSOR - In accordance with an aspect of the present invention, there is provided an Au/Ag core-shell composite including an Au nanoparticle; an Ag nanoparticle layer surrounding the Au nanoparticle; and a receptor having a target material recognition site bondable or reactable with a target material, wherein one end of the receptor is bonded on the surface of the Au nanoparticle, so that a portion of the receptor is embedded into the Ag nanoparticle layer, and the target material recognition site is exposed to the outside of the Ag nanoparticle layer. The Au/Ag core-shell composite can provide a stable bond between Au nanoparticle and organic molecule, and superior optical characteristics of Ag nanoparticle. Thus, a biosensor using the composite in accordance with an aspect of the present invention can effectively and efficiently detect target bio material and be variously used in medical and pharmaceutics. | 05-26-2011 |