Youngnam
Youngnam Cho, West Layfyette, IN US
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20110052713 | REPAIRING DAMAGED NERVOUS SYSTEM TISSUE WITH NANOPARTICLES - The present application relates to reduction of acrolein-mediated cell death following neural insult. According to at least one embodiment, chitosan is utilized as a membrane fusogen to restore cell function. According to at least one other embodiment, chitosan or silica is used to create a non-toxic polymer surfaced microcolloid (PSM). PSMs were found to preferentially target the damaged nerve tissues; to restore conduction of nerve impulses; to seal/restore nerve fiber membranes; and to reduce to baseline the efflux of a large intracellular enzyme. PSMs are further used as a drug delivery vehicle for acrolein scavengers including hydralazine. | 03-03-2011 |
Youngnam Cho, Suwon-Si KR
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20090152845 | STRUCTURE OF DRIVER'S AIRBAG CUSHION OF VEHICLE - A structure for a driver's airbag cushion of a vehicle is provided to protect the driver's lower body as well as the driver's upper body and head, without mounting a knee airbag at the lower portion of the crash pad. The structure may include a blocking member that extends from a rear upper end of an airbag cushion to a front end of the airbag cushion and divides the interior of the airbag cushion into a face chamber defined by a front upper space of the airbag cushion and a pelvis chamber defined by a lower space thereof, the blocking member blocks the face and pelvis chambers, a temporary blocking member provided at a predetermined portion of the blocking member to control fluid-communication between the face chamber and the pelvis chamber when a tensile force is applied thereto, and/or a tensile force-providing member that applies tensile force to the temporary blocking member so that the pelvis chamber may be communicated with the face chamber by releasing the temporary blocking member when the pelvis chamber substantially expands. | 06-18-2009 |
Youngnam Cho, Koyang KR
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20120183620 | MESOPOROUS DRUG DELIVERY SYSTEM USING AN ELECTRICALLY CONDUCTIVE POLYMER - The present application relates to Nanoparticle bioengineering techniques were used to produce a non-toxic polypyrrole composition having two-dimensional and three-dimensional structures that can optionally be co-polymerized with carboxylic acid moieties to possess hydrophilicity. Likewise, such polypyrrole/carboxylic acid structures may be further modified with neural growth factors to create treatment surfaces that can promote growth an differentiation of cells such as neurons. | 07-19-2012 |
Youngnam Choi, Seoul KR
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20100019369 | INTEGRATED CIRCUIT PACKAGE SYSTEM WITH LEADFRAME SUBSTRATE - An integrated circuit package system is provided. A dual-type leadframe having first and second rows of leads is formed. A first row of bumps is formed on an integrated circuit chip. Solder paste is placed on the first row of leads, and the first row of bumps is pressed into the solder paste on the first row of leads. The solder paste is reflow soldered to form solder and connect the integrated circuit chip to the first row of leads, and the integrated circuit chip, the first row of bumps, the solder, and the leadframe are encapsulated. | 01-28-2010 |
20100327418 | INTEGRATED CIRCUIT PACKAGE SYSTEM USING HEAT SLUG - An integrated circuit package system includes a substrate having an integrated circuit die thereon; a heat slug having a tie bar, the tie bar having characteristics of singulation from an adjacent heat slug; and an encapsulant molded on the substrate, the heat slug, and the integrated circuit die includes the encapsulant which fills all of the space between the integrated circuit die and the heat slug. | 12-30-2010 |
Youngnam Han, Daejeon KR
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20090186646 | COGNITIVE RADIO COMMUNICATION METHOD FOR CONTROLLING SENSING OPERATION AND COGNITIVE RADIO COMMUNICATION APPARATUS ENABLING THE METHOD - A cognitive radio communication apparatus and method to control a sensing operation. The cognitive radio communication apparatus includes an information receiver to receive channel state information associated with a channel occupancy state of a primary system from at least one sensing node of a secondary system; a sensing control unit to control a sensing period of the at least one sensing node according to a change pattern of the channel occupancy state, based on the channel state information; and a control information transmitter to transmit control information associated with the controlled sensing period to at least one member node of the secondary system. | 07-23-2009 |
20100041404 | HANDOVER METHOD AND APPARATUS BASED ON HISTORY INFORMATION IN WIRELESS NETWORKS - A handover method in a plurality of wireless networks includes selecting one or more candidate networks from the plurality of wireless networks available to a mobile terminal of a user; calculating the latest connection time with a serving network currently serving the mobile terminal; deriving a history utility function based on the latest connection time; deriving system utility functions of the candidate networks in consideration of user and system environments; deriving selection functions for the candidate networks using the history utility function and the system utility functions; and selecting one of the candidate networks as a target network for handover using the selection functions. A target network for handover is selected using not only a system utility function reflecting user and system parameters but also a history utility function reflecting history information, thereby reducing the number of handovers and enhancing service quality. | 02-18-2010 |
20120099454 | APPARATUS AND METHOD FOR SCHEDULING IN WIRELESS COMMUNICATION SYSTEM - A scheduling method and apparatus in a wireless communication system. The scheduling method for a node B in a wireless communication system supporting a plurality of carriers includes determining a delay weight for each of a plurality of user equipment (UEs) according to a preset weight application time point. The method also includes determining a scheduling metric value of each UE per carrier using the delay weight, and determining a priority of each UE per carrier using the scheduling metric value. | 04-26-2012 |
Youngnam Hwang, Gyeonggi-Do KR
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20120174955 | THERMOELECTRIC MODULE - Disclosed herein is a thermoelectric module. The thermoelectric module is configured by enlarging a cross-section of a P-type thermoelectric device than that of an N-type thermoelectric device, thereby making it possible to reduce unbalance in heat distribution at a high temperature side or a low temperature side of the thermoelectric module and improve thermoelectric performance. | 07-12-2012 |
Youngnam Kim, Hwaseong-Si KR
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20110097197 | NOZZLE ASSEMBLY OF VARIABLE GEOMETRY TURBOCHARGER - According to the present invention, it is possible to achieve improved durability by improving the connection structure of operation links and a control ring to reduce friction and wear between the operation links and the control ring, facilitate manufacturing by simple configuration and structure, and achieve silent and stable operation by making it possible to set the gaps between the parts relatively small. | 04-28-2011 |
20120085841 | DIRECT INJECTION INJECTOR FOR ENGINE - A direct injection injector for an engine includes a body forming the outer structure and having a space therein, a needle inserted to slide linearly in the body and having a hole therein forming a fuel channel, and a cylinder nozzle fitted on needle to communicate with hole and having a nozzle hole for injecting fuel, such that it is possible to prevent caulking in which the nozzle of the injector is clogged with soot while injecting fuel at relatively low pressure, change the spray type of the injected engine in various shapes, and sufficiently decrease the size of droplet of the fuel. | 04-12-2012 |
20120142467 | IDLER DEVICE - An idler device may include first bearings rotatably supporting an idler to an idler shaft, wherein a portion of the idler may be rotatably mounted to the idler shaft, and second bearings rotatably supporting the idler shaft. | 06-07-2012 |
20130146027 | COMBUSTION GENERATING DEVICE OF INTERNAL COMBUSTION ENGINE - Provided is a combustion generating device of an internal combustion engine, which is capable of performing very precise flame control through a simple structure which does not need a prechamber and reducing harmful exhaust gas through low-temperature rapid combustion. The combustion generating device includes: an ignition system generating a spark; and an injector generating a mixture by mixing air and fuel and injecting a flame into a combustion chamber, the flame being generated by applying the spark to the mixture. | 06-13-2013 |
20130220269 | PRE-CHAMBER JET IGNITER AND ENGINE INCLUDING COMBUSTION CHAMBER EMPLOYING THE SAME - An engine includes a pre-chamber jet igniter which injects at least one jet combustion flame into the combustion chamber from the outside of the combustion chamber in which the piston reciprocates to generate power so that the injected jet combustion flame is utilized as the source of ignition of the fuel injected into the space in the combustion chamber to drive the explosion stroke such that combustion of the combustion chamber can be maintained reliable by the use of jet combustion flames in the form of large flame kernels, fuel consumption can be remarkably improved and the generation of NOx can be remarkably reduced using rapid cold combustion which is caused by the continuously reliable combustion, and, in particular, it is possible to prevent liquefaction of the air-fuel mixture due to variations in the flow and pressure of the air-fuel mixture flowing in the combustion chamber. | 08-29-2013 |
Youngnam Kim, Changwon-Si KR
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20130014533 | REFRIGERATORAANM CHOI; HojinAACI Changwon-siAACO KRAAGP CHOI; Hojin Changwon-si KRAANM KANG; SeokhoonAACI Jinju-siAACO KRAAGP KANG; Seokhoon Jinju-si KRAANM KIM; SeongjinAACI BusanAACO KRAAGP KIM; Seongjin Busan KRAANM KIM; YoungnamAACI Changwon-siAACO KRAAGP KIM; Youngnam Changwon-si KRAANM PARK; SanghuAACI SeoulAACO KRAAGP PARK; Sanghu Seoul KR - A refrigerator is provided. The refrigerator may include a refrigerator body having at least one storage compartment and an opening, and a main door for opening and closing the storage compartment, the main door also having an opening corresponding to a receiving compartment formed therein. A sub door may be provided to open and close the opening of the main door, and a gasket may be provided along an edge of a rear surface of the sub door to contact a front surface of the main door and seal an interior of the main door when the sub door is closed. A heat transfer member may extend from the inside of a side to the inside of a front surface of the main door. | 01-17-2013 |
20130277323 | SHELF AND REFRIGERATOR WITH THE SAME - A shelf and a refrigerator having such a shelf are provided. The shelf may include a support frame fixed to an inner surface of a storage compartment of the refrigerator, the support frame including body having a plurality of coupling holes formed along a longitudinal direction, spaced apart at predetermined intervals, and a cover coupled to the body to selectively open and close the plurality of the coupling holes. The cover may include a fixing portion for fixing the cover to the support frame body, and a plurality of opening/closing portions extending from the fixing portion, corresponding to the plurality of the coupling holes, to independently open and close the plurality of the coupling holes. One or more of the plurality of the opening/closing portions may be moved by the shelf plate to couple the shelf plate to the support frame. | 10-24-2013 |
Youngnam Kim, Seoul KR
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20150236625 | APPARATUS AND METHOD OF DRIVING A PLURALITY OF PERMANENT MAGNET SYNCHRONOUS MOTORS USING SINGLE INVERTER - A motor driving apparatus and a method of driving a plurality of permanent magnet synchronous motor (PMSM) using a single inverter is described. The motor driving apparatus includes a single power conversion apparatus configured to supply power to a plurality of motors and a control apparatus configured to control the power conversion apparatus to adjust a phase current ratio supplied to the plurality of motors from the single power conversion apparatus according to a requirement of each of the plurality of motors. | 08-20-2015 |
Youngnam Lim, Seoul KR
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20120129107 | METHOD FOR MANUFACTURING A PATTERNED RETARDER - The present disclosure relates to a method for manufacturing the patterned retarder used in the three-dimensional display device. The present disclosure suggests a method for manufacturing a patterned retarder comprising: defining a first retarder region and a second retarder region in the patterned retarder; forming a first polarization pattern at the first retarder region by a partial exposure process having a first exposure energy; and forming a second polarization pattern at the second retarder region by whole exposure process having a second exposure energy. By manufacturing the patterned retarder with lower exposure energy, it is possible to reduce the whole manufacturing takt time, so that the production yield can be enhanced and the production cost can be reduced. | 05-24-2012 |
Youngnam Maeng, Marina, CA US
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20130226908 | DETECTION AND PREVENTION OF UNWANTED CONTENT ON CLOUD-HOSTED SERVICES - The problem of abuse of privileges at cloud-hosted service sites is addressed by connecting a single individual or “actor” with multiple user accounts and/or other online identities, thereby creating a “consolidated profile.” In this way a confidence level can be established that a particular user account, IP address or other identifying attribute is associated with a particular actor. Different confidence levels may suffice depending on the remediary action to be taken; for example, holding a message for human review is obviously less draconian than rejecting the actor's registration at sign-up, and would therefore require a lower degree of confidence. | 08-29-2013 |
20130226938 | DETECTION AND PREVENTION OF UNWANTED CONTENT ON CLOUD-HOSTED SERVICES - The problem of abuse of privileges at cloud-hosted service sites is addressed by associating each user, preferably across multiple cloud-hosted service sites, with an individual “suspiciousness” score that may vary over time as additional user actions are detected and evaluated. Knowledge of the user is employed to better analyze the appropriateness or acceptability of user actions on the site. | 08-29-2013 |
20130227016 | DETECTION AND PREVENTION OF UNWANTED CONTENT ON CLOUD-HOSTED SERVICES - The problem of abuse of privileges at cloud-hosted service sites is addressed at the sign-up stage by identifying suspicious or abusive users and preventing them from signing up in the first place. This approach may utilize a relatively small initial data set based on the recognition that while abusers' profiles are mutable and difficult to characterize stably abusers will deliberately shift their usage patterns to evade detection—a site's legitimate users tend to have similar and stable characteristics; that is, such characteristics are “cohesive” across cloud-hosted service (e.g., social media) sites and their users. The information gleaned from analysis of this small data set can be applied to a much larger, unsorted data set to obtain profiling criteria based on a large population for statistical reliability. | 08-29-2013 |