Sun Kyung
Sun Kyung Choi, Sejong-Si KR
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20150059497 | AEROSOL COLLECTING DEVICE - An aerosol collecting device includes: a sample plate; and a housing having a sample passing space around the sample plate so as to enclose at least part of the sample plate, wherein the housing includes: a first body having a sample inlet on one surface thereof; and a second body having a suction opening on one surface thereof, the suction opening configured to suck air inside the sample passing space, the second body formed to be engaged with the first body in a state where the sample plate is interposed therebetween. | 03-05-2015 |
Sun Kyung Lee, Daejeon KR
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20100123889 | SUPER-RESOLUTION LITHOGRAPHY APPARATUS AND METHOD BASED ON MULTI LIGHT EXPOSURE METHOD - Disclosed herein is a super-resolution lithography apparatus and method based on a multiple light exposure method. The super-resolution lithography apparatus comprises a photographic medium having energy levels of a first ground state, a second ground state, a first excited state, a second excited state and a quenching state; a first light source inducing energy level transition between the first ground state and the first excited state of the photographic medium; a second light source inducing energy level transition between the second ground state and the first excited state of the photographic medium; and a third light source inducing energy level transition between the second ground state and the second excited state of the photographic medium. Accordingly, the resolution of lithography can be improved simply by using a photographic medium having a simple structure and conventional laser beams and increasing the number of exposure steps. Furthermore, a multiple photon absorber that is difficult to obtain, a medium having a complicated energy level and a high-efficiency quantum optical light are unnecessary, and thus economic efficiency is improved. | 05-20-2010 |
Sun Kyung Lim, Gyeonggi-Do KR
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20140287045 | METHOD OF PREPARING MICROSPHERES BY USING POLYMER HAVING SOL-GEL TRANSITION PROPERTY AND MICROSPHERES PREPARED THEREBY - The present invention relates to a method of preparing microspheres by using a polymer having a sol-gel transition property and microspheres prepared thereby, and more particularly, to a method of preparing microspheres by using a polymer having a sol-gel transition property and microspheres prepared thereby capable of preventing a solvent in a polymer solution for a carrier from being rapidly diffused to the aqueous medium before formation of the microspheres to reduce porosity of the microspheres and reduce surface roughness of the microspheres in order to obtain microspheres having a sphere shape, and increasing an encapsulation ratio of a bioactive substance, by using a polymer having a sol-gel transition property as a surfactant included in an aqueous medium into which a primary emulsion is injected and gelating a secondary emulsion formed after injecting the primary emulsion using the sol-gel transition property of the polymer used as the surfactant. | 09-25-2014 |
Sun Kyung Lim, Yongin-Si KR
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20140341997 | CONTINUOUS PROCESS FOR PREPARING MICROSPHERES AND MICROSPHERES PREPARED THEREBY - The present invention relates to a continuous process for preparing microspheres and microspheres prepared thereby, and in particular, a process for preparing microspheres comprising steps of injecting a first emulsion and a second emulsion at the same time to form microspheres instantaneously, applying high pressure to the microspheres formed, and injecting the microspheres into an agitator, wherein the steps can be carried out continuously, and microspheres prepared thereby. | 11-20-2014 |
Sun Kyung Oh, Seoul KR
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20100317103 | EFFICIENT GENERATION OF NEURAL PROGENITORS, NEURONS, AND DOPAMINERGIC NEURONS FROM HUMAN EMBRYONIC STEM CELLS - The present invention relates to a method for inducing the differentiation of neural progenitors, neurons, and dopaminergic neurons from human embryonic stem cells with high efficiency, in which neural selection can be performed by the selected media and physical methods. The invention has advantages such as higher efficiency, the effect of lowering cost and time, and maintenance of neural progenitors for a longer period of time, as compared to the known methods for inducing the differentiation into neural progenitors, neurons, and dopaminergic neurons. Accordingly, the method can stably generate cells used for treating Parkinson's disease or other nervous system diseases. | 12-16-2010 |
Sun Kyung Shin, Gyeonggi-Do KR
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20130119876 | CIRCUIT AND METHOD OF DRIVING LIGHT EMITTING DIODES - An LED drive method is disclosed. In this way, the LED drive method allows not only the reference voltage to be periodically updated on the basis of the feedback drive voltages but also the drive voltage control signal to be generated using the updated reference voltage, in order to adjust the LED drive voltage applied to the LED array. Therefore, the LED drive circuit is hardly affected by the external environmental noise. | 05-16-2013 |
Sun-Kyung Han, Seoul KR
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20090011308 | Preparation of Gas Diffusion Layer for Fuel Cell - A common method of preparing a gas diffusion layer for a fuel cell has problems in that a microporous layer is impregnated into a substrate, thereby lowering the porosity of the substrate, and cracks are created on a surface of a gas diffusion layer prepared using the method. Provided is a method of reproducibly preparing a gas diffusion layer with a uniform thickness and no cracks based on the principle of a primer coating method, wherein a first microporous layer is hardly impregnated into a substrate and uniformly covers a surface of the substrate, and at least one microporous layer is further coated on the first microporous layer. Provided is also a fuel cell showing improved performance by enhancing utilization of a catalyst layer and guaranteeing a uniform diffusion of fuel and an efficient discharge of a product. | 01-08-2009 |
Sun-Kyung Kim, Busan KR
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20150312759 | MOBILE DEVICE AND METHOD OF SHARING CONTENT - A mobile device and methods for sharing content are provided. The mobile device includes a communicator configured to communicate with at least one external device; and a controller configured to control decryption of encrypted content that is shared with the at least one external device, in response to determining that the mobile device is located within a proximate spacing of the at least one external device. | 10-29-2015 |
Sun-Kyung Kim, Yong In Si KR
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20150380244 | ANISOTROPIC DEPOSITION IN NANOSCALE WIRES - The present invention generally relates to nanoscale wires, including anisotropic deposition in nanoscale wires. In one set of embodiments, material may be deposited on certain portions of a nanoscale wire, e.g., anisotropically. For example, material may be deposited on a first facet of a crystalline nanoscale wire but not on a isotropic second facet. In some cases, additional materials may be deposited thereon, and/or the portions of the nanoscale wire may be removed, e.g., to produce vacant regions within the nanoscale wire, which may contain gas or other species. Other embodiments of the invention may be directed to articles made thereby, devices containing such nanoscale wires, kits involving such nanoscale wires, or the like. | 12-31-2015 |
Sun-Kyung Kim, Kiev UA
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20150312260 | METHODS OF PROVIDING SOCIAL NETWORK SERVICE AND SERVER PERFORMING THE SAME - Methods and apparatuses for sharing content through a chatting space of a social networking service (SNS) are provided. The method includes detecting an access of a plurality of users to the chatting space, and decrypting encrypted content that was previously shared by the plurality of users in the chatting space, in response to the plurality of users accessing the chatting space. | 10-29-2015 |
Sun-Kyung Kim, Daejeon KR
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20130062201 | Glucose Sensor Having Titanium Dioxide-Graphene Composite - Provided is a glucose sensor including a titanium dioxide-graphene composite having a porous structure. More particularly, the glucose sensor includes a working electrode having the titanium dioxide-graphene composite having the porous structure and an enzyme to provide features that allow a current flow to be excellent, a current to be sensitively changed depending on a change in electric potential, sensitivity to be high, and a low voltage characteristic to be excellent. | 03-14-2013 |
Sun-Kyung Park, Gyeonggi-Do KR
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20160081625 | METHOD AND APPARATUS FOR PROCESSING SENSOR DATA - A method in an electronic device is provided, the method including: receiving sensor data from at least one external electronic device; determining an exercise type of a user who wears the at least one external electronic device based on the received sensor data; and outputting exercise information corresponding to the determined exercise type. | 03-24-2016 |