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Kwag, KR
Gwanghoon Kwag, Daejeon KR
| Patent application number | Description | Published |
|---|---|---|
| 20090048408 | CATALYST COMPRISING HETEROLEPTIC ALUMINUM AND COBALT COMPOUNDS AND A METHOD OF PREPARING POLYBUTADIENE USING THE SAME - The present invention relates to a novel catalyst for diene polymerization comprising a heteroleptic single-molecule aluminum compound and a cobalt compound having a carboxyl group with a predetermined proportion and a method for preparing polybutadiene from 1,3-butadiene using a catalyst for diene polymerization. | 02-19-2009 |
| 20110098404 | FUNCTIONAL STYRENE-BUTADIENE COPOLYMER - A functional styrene-butadiene copolymer is disclosed. More specifically, the copolymer is prepared by radical polymerization of a styrene monomer, a butadiene monomer and an epoxy acrylate monomer in an emulsion state and ring-opening of the resultant styrene-butadiene-epoxy acrylate copolymer. When blended with silica, the disclosed copolymer provides excellent wet stopping performance and superior wear resistance. Therefore, it can be usefully applied for industrial materials including fuel-efficient tires, snow tires, belts, hoses, etc. | 04-28-2011 |
| 20110136956 | 1,4-CIS-POLYBUTADIENE FUNCTIONALIZED WITH ORGANOSULFUR COMPOUND FOR PREPARATION OF GOLF BALL CORE - Disclosed are 1,4-polybutadiene functionalized with an aromatic organosulfur compound, providing improved processability due to decreased Mooney viscosity and providing improved feel on hitting and flying performance due to decreased compression and increased restitution when used to prepare a golf ball core, and a composition for the preparation of a golf ball core including the same. | 06-09-2011 |
Gwanghoon Kwag, Yuseong-Gu KR
| Patent application number | Description | Published |
|---|---|---|
| 20100184922 | ORGANIC-INORGANIC NANO COMPOSITES AND PREPARATION METHOD THEREOF - Provided is an organic-inorganic nano composite, and more particularly, an organic-inorganic nano composite including: a styrene-butadiene copolymer; an acryl-based monomer; a living radical polymerization initiator; silica; and a coupling agent, in which radiality is maximized. The organic-inorganic nano composite is prepared using a method comprising: preparing a spherical styrene-butadiene copolymer; preparing a nano-sized spherical styrene-butadiene-acrylate copolymer using living radical polymerization of the spherical styrene-butadiene copolymer and an acryl-based monomer; and preparing a composite by coupling the nano-sized spherical styrene-butadiene-acrylate copolymer and silica using a coupling agent. The organic-inorganic nano composite has excellent tensile and tear properties, and high wet traction capability. Thus, if the organic-inorganic nano composite according to the present invention is applied to organic filler for tires, rolling resistance can be decreased and wet traction capability can be increased, and the organic-inorganic nano composite can be efficiently applied to a hard coating material as well. | 07-22-2010 |
Gwang Hoon Kwag, Daejeon KR
| Patent application number | Description | Published |
|---|---|---|
| 20100081770 | GRAFTED AND FUNCTIONALIZED HIGH 1,4-TRANS POLYBUTADIENE WITH AROMATIC ORGANOSULFUR COMPOUND - The present invention relates to a process of preparing 1,4-trans polybutadiene grafted with an aromatic organosulfur compound, the process comprising (a) preparing 1,4-trans polybutadiene by polymerizing 1,3-butadiene or butadiene derivatives in a nonpolar solvent in the presence of a particular catalyst, and (b) preparing the 1,4-trans polybutadiene grafted with an aromatic organosulfur compound by reacting the trans polybutadiene with an aromatic organosulfur compound. The organosulfur molecule in the molecular chain minimizes ultra high molecular weight fraction and narrows the molecular weight distribution, thereby enabling this polymer to show improved processability and tensile properties. | 04-01-2010 |
Gwang Hoon Kwag, Yuseong-Gu KR
| Patent application number | Description | Published |
|---|---|---|
| 20090156751 | Aromatic Organosulfur Functionalized 1,4-cis Polybutadiene - The present invention relates to a preparation method of aromatic organosulfur functionalized 1,4-cis polybutadiene comprising: polymerizing 1,3-butadiene or butadiene derivative in the presence of a specific catalyst in a nonpolar solvent to prepare 1,4-cis polybutadiene; and reacting the resultant polybutadiene with an aromatic organosulfur compound. Such prepared aromatic organosulfur functionalized 1,4-cis polybutadiene is without ultrahigh molecular weight region and, thus, has narrow molecular weight distribution. | 06-18-2009 |
| 20100261847 | MOLECULAR WEIGHT CONTROLLABLE, HIGH 1,4-TRANS POLYBUTADIENE CATALYST SYSTEM - Provided are a molecular weight controllable, high 1,4-trans polybutadiene catalyst system, and more particularly, a four-component catalyst for preparing 1,4-trans polybutadiene with high yield, the catalyst comprising a cobalt compound, an organoaluminum compound, a phenol-based compound, and a phosphorus-based compound used to prepare 1,4-trans polybutadiene by polymerizing butadiene or a butadiene derivative, and capable of controlling the molecular weight of 1,4-trans polybutadiene by regulating the amount of the phosphorus-based compound. | 10-14-2010 |
Gyu-Hwan Kwag, Suwon-City KR
| Patent application number | Description | Published |
|---|---|---|
| 20090203211 | MULTI-CHAMBER SYSTEM HAVING COMPACT INSTALLATION SET-UP FOR AN ETCHING FACILITY FOR SEMICONDUCTOR DEVICE MANUFACTURING - A multi-chamber system of an etching facility for manufacturing semiconductor devices occupies a minimum amount of floor space in a clean room by installing a plurality of processing chambers in multi-layers and in parallel along a transfer path situated between the processing chambers. The multi-layers number | 08-13-2009 |
| 20090291558 | MULTI-CHAMBER SYSTEM HAVING COMPACT INSTALLATION SET-UP FOR AN ETCHING FACILITY FOR SEMICONDUCTOR DEVICE MANUFACTURING - A multi-chamber system of an etching facility for manufacturing semiconductor devices occupies a minimum amount of floor space in a clean room by installing a plurality of processing chambers in multi-layers and in parallel along a transfer path situated between the processing chambers. The multi-layers number 2 to 5, and the transfer path can be rectangular in shape and need only be slightly wider than the diameter of a wafer. The total width of the multi-chamber system is the sum of the width of one processing chamber plus the width of the transfer path. | 11-26-2009 |
Han-Jin Kwag, Daejeon KR
| Patent application number | Description | Published |
|---|---|---|
| 20110124882 | Method for Preparing N-Substituted Maleimides - The present invention relates to a method of preparing N-substituted maleimide in high purity and high yield, wherein, unlike a conventional method of preparing N-substituted maleimide after preparing N-substituted maleamic acid, an organic solvent, an acid catalyst, a dehydration co-catalyst and a stabilizer are added into a reactor without separately preparing N-substituted maleamic acid, and then a primary amine is added into the reactor to form an amine salt, maleic anhydride is added into the reactor, and the resulting mixture is subjected to a dehydration-cyclization reaction, wherein water produced during the reaction is azeotropically distilled with the organic solvent so as to effectively suppress formation of a maleimide polymer. Particularly, the invention simplifies the process, has high yield, minimizes side reactions, eliminates the introduction of expensive raw materials and the complicated treatment of the reaction solution and significantly shortens the time over which the raw materials and maleic anhydride are added. | 05-26-2011 |
Hyun Ju Kwag, Changwon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20110041541 | Air Conditioner - An air conditioner is provided. The air conditioner includes: an outdoor heat exchange unit in which a plurality of refrigerant tubes are disposed to be separated in a plurality of columns in a vertical direction to exchange heat of outdoor air and a refrigerant; a first refrigerant distribution device having branch pipes connected to a plurality of refrigerant tubes, respectively, of an upper part among the plurality of refrigerant tubes; a second refrigerant distribution device having branch pipes connected to a plurality of refrigerant tubes, respectively, of a lower part among the plurality of refrigerant tubes; and a communication pipe for communicating one of the branch pipes of the first refrigerant distribution device and one of the branch pipes of the second refrigerant distribution device. Therefore, when performing divisional defrost of an upper part and divisional defrost of a lower part of the outdoor heat exchange unit, the remaining frost of a central portion of the outdoor heat exchange unit can be also removed. | 02-24-2011 |
No-Hyun Kwag, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20110101917 | BATTERY PACK - A battery pack includes a case including external terminals, batteries disposed in the case, and balancing lines connected to each of the batteries and functioning as pathways of a voltage signal transmitted to a controller. At least one of the balancing lines functions as a high current line supplying battery current to the external terminals. Thus, the battery pack may have a simple structure and may be simply assembled using the high current line as a balancing line. | 05-05-2011 |
| 20110122558 | UNINTERRUPTIBLE POWER SUPPLY MODULE UNIT AND UNINTERRUPTIBLE POWER SUPPLY INCLUDING THE SAME - A UPS module includes a battery; a case accommodating the battery; a terminal disposed on a side of the case so as to transmit or receive electric signals representing data about a status of the battery to or from an external device; and a terminal unit disposed on another side of the case to be electrically connected to an external device for charging or discharging the battery. | 05-26-2011 |
| 20110127835 | BATTERY PACK AND UNINTERRUPTIBLE POWER SUPPLY HAVING THE SAME - Provided are battery packs capable of preventing electrical shorts due to incorrect arrangement of polarities of the battery packs during assembly of an uninterruptible power supply (UPS) having the battery packs and a UPS having the battery packs. The battery pack includes: a casing housing a plurality of cells; first and second terminals arranged to protrude outwardly from a first surface of the casing and having opposite polarities; a first attachment unit formed on a second surface of the casing; and a second attachment unit formed on a third surface of the casing, disposed opposite the second surface of the casing, wherein the first attachment unit and the second attachment unit are not symmetrical to each other. | 06-02-2011 |
| 20110129704 | BATTERY PACK - A battery pack including: a case in which a plurality of batteries are received; an electrode tab to connect the batteries to form one unit; and a data wire having a first end connected to the electrode tab, to act as a signal transmitting line of the plurality of batteries. | 06-02-2011 |
| 20110129715 | SECONDARY BATTERY - A secondary battery including an electrode assembly having a first electrode, a second electrode, and a separator interposed between the first electrode and the second electrode; an electrode tab electrically connecting the electrode assembly to an external device; a case accommodating the electrode assembly therein and sealed so that the electrode tab is exposed outside of the case; and an uneven portion formed on a surface of the case in a direction parallel to a ground surface. | 06-02-2011 |
| 20110135970 | CIRCUIT SUBSTRATE MODULE AND BATTERY MODULE USING THE SAME - A circuit substrate module and a battery module using the circuit substrate module are disclosed. The battery module includes: a plurality of battery units, wherein each battery unit comprises a plurality of battery cells, a case for accommodating the plurality of battery cells, a plurality of electrode terminals, and a plurality of communication connectors coupled to the battery cells and protruding out of the case; a circuit substrate module mounted on the plurality of battery units and comprising a circuit substrate, wherein a plurality of circuit substrate connectors are coupled to the plurality of communication connectors, wherein the plurality of circuit substrate connectors are coupled to a single external connector that is configured to be coupled to an external device. | 06-09-2011 |
| 20110140666 | SECONDARY BATTERY - A secondary battery has charging and discharging functions. The second battery prevents an external connection portion from being separated from a connection terminal due to external shocks. | 06-16-2011 |
| 20110143187 | BATTERY PACK - A battery pack including secondary batteries, and a case accommodating the secondary batteries, the case including: an upper case; a lower case; and plates disposed on each of the upper case and the lower case and each of the plates having holes corresponding to ends of each of the secondary batteries, wherein support protrusions are formed on the holes of the case so as to align the secondary batteries. | 06-16-2011 |
No-Hyun Kwag, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20110104555 | BATTERY PACK - A battery pack includes a plurality of battery units, each comprising a plurality of battery cells, a case providing a space to accommodate the battery cells, and a plurality of electrode terminals that are electrically connected to the battery cells and protrude out of the case. Bus bars connect electrode terminals of adjacent battery units. Short circuits are prevented by surrounding each bus bar with an insulating protection unit. | 05-05-2011 |
Sun Woo Kwag, Paju-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20080284773 | Liquid crystal display device and method for driving the same - A liquid crystal display device and a method for driving the same are disclosed. The device includes a gamma voltage generation circuit for generating first to ith positive gamma reference voltages having different levels, and first to ith negative gamma reference voltages having different levels, and a plurality of data drive chips, each of the data drive chips converting digital data input thereto into a positive data voltage and a negative data voltage and supplying the positive data voltage and negative data voltage to a liquid crystal display panel, and adjusting a level of the positive data voltage based on a positive gamma reference voltage supplied thereto, among the first to ith positive gamma reference voltages, and adjusting a level of the negative data voltage based on a negative gamma reference voltage supplied thereto, among the first to ith negative gamma reference voltages. | 11-20-2008 |
Sun-Woo Kwag, Paju KR
| Patent application number | Description | Published |
|---|---|---|
| 20090303331 | Testing apparatus of liquid crystal display module - Disclosed is a technique for testing liquid crystal display modules which are driven in various image formats or drive frequencies by using one scanning converter, a testing apparatus of a liquid crystal display module, including: a scan box controller configured to provide a menu setting screen for setting a resolution and a drive frequency of a liquid crystal display module; a scanning converter configured to adjust and output a resolution and a drive frequency of an input image signal supplied to the liquid crystal display module according to a setting set by a user on the menu setting screen; and the liquid crystal display module configured to display an image signal of a resolution supplied from the scanning converter. | 12-10-2009 |
Yungeun Kwag, Seongnam-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20110188390 | COMMUNICATION TERMINAL AND METHOD THEREOF - Disclosed herein are a communication terminal and a method for determining a packet retransmission time in the hand-off thereof. If a hand-off between heterogeneous communication networks with different speeds is generated, a packet retransmission time after the hand-off is determined corresponding to features of a current communication network so that an error packet can be retransmitted at a speed suitable for the corresponding handed-off communication network without waste of communication resources. | 08-04-2011 |
Yun Geun Kwag, Seongnam-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090279510 | SYSTEM AND METHOD FOR RELEASING QUALITY OF SERVICE RESOURCES IN MOBILE COMMUNICATION NETWORK - A system and a method for releasing quality of service (QoS) resources in a mobile communication network enable QoS resources allocated to a mobile terminal to be released, if, after the mobile terminal is allocated with resources for QoS through an Evolution-Data Optimized (EVDO) Revision A (rA) network to receive data serves, the mobile terminal escapes from the EVDO rA network without first performing a resource release request to the EVDO rA network. The system and method may be implemented in the mobile terminal, the access network, the text message server, or any combination thereof, for releasing the allocated QoS resources without requiring the mobile terminal to re-connect to the EVDO rA network. | 11-12-2009 |