Patent application number | Description | Published |
20100085893 | SENSOR NODES IN MULTIPLE SENSOR NETWORK, METHOD FOR CREATING GRID-BASED TREE OF SENSOR NODES AND SPATIAL QUERY PROCESSING SYSTEM USING GRID-BASED TREE - A method for creating a grid-based tree in a multiple sensor network includes: dividing an entire area in which a base station node and a plurality of sensor nodes are disposed into grid areas; assigning a grid ID to each of the grid areas; setting, sequentially from the base station node to each of the sensor node, level information, candidate child nodes and candidate parent nodes; storing a grid ID of a grid area in which the respective nodes locate; selecting, for the respective sensor nodes, a parent node based on the grid ID, the level information, and the candidate parent nodes; and calculating, for the respective nodes, minimum bounding rectangles each of which includes a child node of corresponding node and nodes descended from the child node. The grid-based tree is calculated by using the minimum bounding rectangles. | 04-08-2010 |
20100138151 | ROUTE GUIDE SYSTEM AND METHOD USING STATE INFORMATION OF POI - A route guide method includes collecting state information of respective points of interest (POIs) and storing the collected state information in a state information database, extracting state information of one or more candidate POIs with reference to the state information database according to a request for the state information of the one or more candidate POIs, and applying the extracted state information of the candidate POIs to routes to the respective POIs to guide a user along the routes to the respective candidate POIs. | 06-03-2010 |
20110110287 | NAVIGATION TERMINAL, METHOD AND SYSTEM FOR UPDATING MAP VIA FUSION OF BROADCASTING AND TELECOMMUNICATIONS - A method for updating a map in a navigation terminal via fusion of broadcasting and telecommunications includes: receiving map contents of the map from a broadcast center via a broadcast network; classifying the map contents received via the broadcast network into updatable map contents and un-updatable map contents which have dependencies with map contents having not been received by the navigation terminal; and updating the map using the updatable map contents. The method further includes requesting the broadcast center via a wired/wireless telecommunications network to download map contents of the map, which have not been received but have dependencies with the un-updatable map contents; receiving the requested map contents from the broadcast center via the wired/wireless telecommunications network; and updating the map by aggregating the un-updatable map contents with the requested map contents. | 05-12-2011 |
20110153276 | APPARATUS AND METHOD FOR PROVIDING COMPOSITE SENSOR INFORMATION - Disclosed herein is an apparatus and method for providing composite sensor information. The apparatus receives sensor information from a plurality of sensors and creating a virtual sensor as a proxy for a plurality of effective sensors included in a region requested to be searched from a user terminal. Thereafter, the apparatus creates composite sensor information by fusing a plurality of the sensor information corresponding to the plurality of effective sensors included in the virtual sensor. | 06-23-2011 |
20110153655 | SERVER-SENSOR NETWORK COOPERATIVE SPATIAL QUERY PROCESSING METHOD AND SERVER USING THE SAME - Disclosed herein are a server-sensor network cooperative spatial query processing method and a server using the method. The server-sensor network cooperative spatial query processing method includes the server detecting supplementary information for selecting sensor nodes to be excluded from among a plurality of sensor nodes by performing a preliminary spatial query, before starting a spatial query with the plurality of sensor nodes, and the server requesting the spatial query to the sensor nodes, selected based on the supplementary information, when starting the spatial query with the plurality of sensor nodes. | 06-23-2011 |
20110225194 | APPARATUS AND METHOD FOR ANALYZING INFORMATION ABOUT FLOATING POPULATION - Disclosed herein is an apparatus and method for analyzing information about floating population. The apparatus includes an information collection unit, a data integration unit, a data mining analysis unit, and an interface unit. The information collection unit collects information about locations provided by mobile communication terminals of moving objects, information about attributes of the moving objects, and information about locations and attributes related to stationary objects. The data integration unit creates integrated data by integrating the information collected by the information collection unit, national statistical information, and map data registered previously. The data mining analysis unit extracts data, consistent with conditions input by a system user, from the integrated data, and searches the map data for based moving patterns of the moving objects using data mining analysis. The interface unit provides a map service in which search results have been applied to the map data. | 09-15-2011 |
20120122476 | METHOD AND SYSTEM FOR PROVIDING SPATIAL-BASED CONTEXT-AWARE SERVICE - A system for providing spatial-based context-aware service includes a database configured to store a geocontext including spatial information, one or more contexts, and sensor data; a sensor/context catalog server configured to manage meta data of the contexts and the sensor data; a context processing server configured to generate a list of contexts applicable to the mobile device based on the sensor data and the meta data upon a receipt of the sensor data from the mobile device; a geocontext search server configured to search the database for candidate geocontexts appropriate for the user of the mobile device by using the location information of the mobile device and the list of contexts; and a context-aware management server configured to generate a list of recommended services by executing the searched candidate geocontexts. | 05-17-2012 |
20120143691 | SYSTEM AND METHOD FOR PROVIDING USER-SPECIFIC ADVERTISEMENT ON BASIS OF M2M COMMUNICATION, AND MOBILE TERMINAL - Provided are a system and method for providing a user-specific advertisement on the basis of machine-to-machine (M2M) communication, and a mobile terminal. The method includes: receiving an advertising message broadcasted from at least one mobile terminal; extracting an advertisement according to a user situation using profile information set by a user of the mobile terminal; and presenting and displaying the extracted advertisement. | 06-07-2012 |
Patent application number | Description | Published |
20090138590 | APPARATUS AND METHOD FOR DETECTING ANOMALOUS TRAFFIC - An apparatus and method for detecting anomalous traffic are provided. More particularly, an apparatus and method for detecting anomalous traffic based on entropy of network traffic are provided. The apparatus of detecting anomalous traffic includes: an entropy extraction module for extracting entropy from network traffic; a visualization module for generating an entropy graph based on the entropy; a graph model experience module for updating a graph model for each network attack based on the entropy graph; and an anomalous traffic detection module for detecting anomalous traffic based on the entropy graph and the graph model for each network attack and outputting the detection results to a user. In the apparatus and method, anomalous traffic is detected based on network entropy rather than simple statistics based on the amount of traffic, so that a false alarm rate of the apparatus for detecting anomalous traffic can be reduced. | 05-28-2009 |
20120096552 | SYSTEM FOR AN ENGINE FOR FORECASTING CYBER THREATS AND METHOD FOR FORECASTING CYBER THREATS USING THE SYSTEM - A system for an engine for forecasting cyber threats and a method enabling the forecast of a low-level cyber threat and the forecast of a high-level cyber threat using the low-level cyber threat in a hierarchical structure of cyber threats are provided. The system includes a forecast information database which stores forecast information including cyber threat forecast items, a forecast schedule related to the items, forecast simulation information, forecast item hierarchical structure information, time series data on cyber threats, and sample data on cyber threats; a forecast engine core subsystem which forecasts the levels of threats for the cyber threat forecast items having a hierarchical structure using the forecast information stored in the forecast information database; and a forecast engine control interface which receives control commands for the forecast engine core subsystem from a user or external system, and delivers the received control commands to the forecast engine core subsystem. | 04-19-2012 |
20150113651 | SPAMMER GROUP EXTRACTION APPARATUS AND METHOD - The present invention relates to a spammer group extraction apparatus and method, which extract spammer groups that interfere with fair trade and unbiased decision making by sending messages aimed at intentionally slandering other companies (other persons, other products, etc.) on social network services. The spammer group extraction apparatus includes a data collection unit for collecting pieces of data corresponding to social network services. A natural language processing unit preprocesses the pieces of data using a natural language processing algorithm based on big data. An abnormal behavior detection unit detects abnormal behavior based on user identifications (IDs) respectively corresponding to pieces of data, preprocessing of which has been completed. A spammer extraction unit extracts a spammer group using a user ID causing the abnormal behavior and an ID of a user group including the user ID. | 04-23-2015 |
20150291631 | A NOVEL LIGAND COMPOUND, A PREPARATION METHOD THEREOF, A TRANSITION METAL COMPOUND INCLUDING THE LIGAND COMPOUND, AND A PREPARATION METHOD THEREOF - The present invention relates to a novel ligand compound, a preparation method thereof, a transition metal compound including the ligand compound, and a preparation method thereof. The ligand compound of novel structure according to the present invention and the transition metal compound including the same may be used as a polymerization reaction catalyst for preparing olefin polymers. | 10-15-2015 |
Patent application number | Description | Published |
20090169735 | Manufacturing method of photonic crystal - A manufacturing method of a photonic crystal is provided. In the method, a high-refractive-index material is conformally deposited on an exposed portion of a periodic template composed of a low-refractive-index material by an atomic layer deposition process so that a difference in refractive indices or dielectric constants between the template and adjacent air becomes greater, which makes it possible to form a three-dimensional photonic crystal having a superior photonic bandgap. Herein, the three-dimensional structure may be prepared by a layer-by-layer method. | 07-02-2009 |
20130115434 | Manufacturing Method of Photonic Crystal - A manufacturing method of a photonic crystal is provided. In the method, a high-refractive-index material is conformally deposited on an exposed portion of a periodic template composed of a low-refractive-index material by an atomic layer deposition process so that a difference in refractive indices or dielectric constants between the template and adjacent air becomes greater, which makes it possible to form a three-dimensional photonic crystal having a superior photonic bandgap. Herein, the three-dimensional structure may be prepared by a layer-by-layer method. | 05-09-2013 |
20150245223 | WEIGHTED SUMMING AND RADIO FREQUENCY (RF) PATH SELECTION FOR MULTIPLE ANTENNA SYSTEMS USING SENSORS AND RECEIVED SIGNAL LEVEL - Methods and apparatus are provided for intelligently enabling or disabling radio frequency (RF) paths in a wireless device. This may save power, for example, in situations where an RF path may not be contributing to antenna gain, but may still be drawing power from the device. One example method generally includes measuring received signal levels for a plurality of RF paths in an apparatus; powering off at least a portion of an RF path in the plurality if a received signal level of the RF path does not meet or exceed a threshold; after powering off the at least the portion of the RF path, determining that a signal blocking aspect affecting the RF path has been removed or at least reduced, without powering on the powered-off portion of the RF path for the determination; and powering on the powered-off portion of the RF path based on the determination. | 08-27-2015 |
Patent application number | Description | Published |
20110044716 | METHOD OF CONTROLLING IMAGE FORMING APPARATUS SUPPORTING GLOSSY PRINTING IN HOST DEVICE, AND THE HOST DEVICE AND THE IMAGE FORMING APPARATUS PERFORMING THE METHOD - A method of controlling an image forming apparatus supporting glossy printing in a host device, the method including: executing a printer driver of the image forming apparatus; setting a glossy printing option by using a user interface of the executed printer driver; and transmitting printing data and a glossy printing command based on the set glossy printing option to the image forming apparatus for printing the printing data on a printing medium according to the printing data and for performing a fusing operation additionally on a second side that is a reverse side of a first side of the printing medium in accordance with the glossy printing option command, wherein the first side is the latest printed side of the printing medium. | 02-24-2011 |
20110083012 | PRINTING DEVICE CAPABLE OF AUTHORIZING PRINTING LIMITEDLY ACCORDING TO USER LEVEL, PRINTING SYSTEM USING THE SAME AND PRINTING METHOD THEREOF - A printing device which authorizes a printing limitedly according to a user level, a printing system using the same and a printing method thereof. The printing device includes an interface part receiving a printing data requested by a user and a security level of the requested printing data; an authentication part determining whether to print the requested printing data based on the security level and a pre-stored user level of the user; a printing part printing the requested printing data; and a controller transmitting the requested printing data received through the interface part to the printing part if the authentication part permits the printing. Accordingly, even if a user obtains an access to the system, because the user has a limitation in using and printing the data depending on his/her position or job, the security of the data can be more effectively guaranteed. | 04-07-2011 |
20120081751 | METHOD AND APPARATUS TO UPGRADE DRIVER OF IMAGE FORMING APPARATUS - A method and apparatus to upgrade a driver of an image forming apparatus. The method includes accessing a website having a website driver program useable by the image forming apparatus, converting a class mode of the image forming apparatus from an original class mode to a predetermined class mode that is different from the original class mode, comparing a driver program stored in the image forming apparatus with the website driver program on the website, and downloading the website driver program from the website and storing the website driver program in the image forming apparatus when the website driver program is a later version than the stored driver program. | 04-05-2012 |
20120086965 | Image forming apparatus, host apparatus and job performing method thereof - An imaging forming apparatus, host apparatus, and job performing method thereof, the job performing method using target setup in an image forming apparatus supporting at least one function for targeting one host apparatus of a plurality of host apparatuses connected to the image forming apparatus via a network, the method including: receiving, by the host apparatus, input of a user generating a job event using a function by target setup supported by the image forming apparatus; transmitting, by the host apparatus, a use request message corresponding to the job event to the image forming apparatus; receiving, by the host apparatus, a message about whether to make a registration including whether a job targeting the host apparatus is registered in response to the use request message from the image forming apparatus; and displaying whether the job event is registered based on the received message about whether to make the registration. | 04-12-2012 |
20130088739 | METHOD AND APPARATUS FOR SETTING PRINTING OPTION - A method of setting printing options at a host apparatus using a LINUX-based operation system (OS), the method including displaying at least one printing option providing text input for a user from among printing options provided by an image forming apparatus connected to the host apparatus; receiving setting information regarding printing options selected by a user from among the at least one printing option as text input; and storing the setting information with the corresponding printing options. | 04-11-2013 |
20140153037 | IMAGE FORMING APPARATUS AND METHOD TO SEARCH FOR AND PRINT IMAGES ON NETWORK - An image forming apparatus includes an input unit to receive a network resources address where a document exists, a web information receiving unit to read information on the document existing at the received address, an image path extracting unit to extract a path and a name of an image file consistent with predetermined reference data from the document information, an image receiving unit to receive the image file through the network using the extracted path and name of the image file, and a printing unit to print the image file. | 06-05-2014 |
20140253952 | IMAGE FORMING APPARATUS AND METHOD TO SEARCH FOR AND PRINT IMAGES ON NETWORK - An image forming apparatus includes an input unit to receive a network resources address where a document exists, a web information receiving unit to read information on the document existing at the received address, an image path extracting unit to extract a path and a name of an image file consistent with predetermined reference data from the document information, an image receiving unit to receive the image file through the network using the extracted path and name of the image file, and a printing unit to print the image file. | 09-11-2014 |
Patent application number | Description | Published |
20150016721 | IMAGE-QUALITY IMPROVEMENT METHOD, APPARATUS, AND RECORDING MEDIUM - An image-quality improvement method is provided. The image-quality improvement method includes detecting an area of interest from an input image; generating a color distribution map based on a plurality of respective brightness elements and a plurality of respective chroma elements of a plurality of pixels which belong to a predetermined color series and which are in the detected area of interest of the input image; determining a first area, which belongs to the predetermined color series, and a second area, which is an area of the input image other than the first area, according to the color distribution map; and changing values of a plurality of pixels in at least one of the first area and the second area. | 01-15-2015 |
20150188326 | BATTERY PACK, ELECTRONIC APPARATUS INCLUDING THE SAME, AND METHOD OF CONTROLLING CHARGE - A battery pack includes a battery cell, a charger configured to receive power from an external source, and charge the battery cell by using the supplied power, and a charge controller configured to, when a voltage of the battery cell is lower than a predetermined first voltage even though the battery cell has a problem, control the charger to charge the battery cell. | 07-02-2015 |
20150280493 | METHOD FOR CONTROLLING POWER SUPPLY AND ELECTRONIC DEVICE - An electronic device is provided. The electronic device includes a switch configured to selectively connect power supplied from a power adaptor connected to the electronic device, a system load configured to be included in the electronic device and to receive power from the power adaptor or a battery connected to the electronic device according to on/off of the switch, and a controller configured to turn off the switch when entering an emergency power mode in a state where the power adaptor is connected to the electronic device. | 10-01-2015 |
Patent application number | Description | Published |
20110046086 | Composition Comprising Polysaccharide Extracted from Panax Ginseng Preventing and Treating Liver Diseases - The present disclosure relates to a | 02-24-2011 |
20150147603 | APPARATUS AND METHOD FOR CONTROLLING BATTERY - An apparatus and method for controlling a battery are provided. The apparatus includes a battery pack and a battery management system (BMS). The BMS is configured to calculate a battery state by sensing the battery pack and perform a selective control to select a control object of a unit element of the battery pack or an intensive control to intensively use the control object of the unit element using the battery state. | 05-28-2015 |
20150160641 | METHOD FOR UPDATING MODULE INFORMATION IN BATTERY MODULE STRUCTURE - A method for updating lower module information in a battery module structure in which an upper controller controls and manages a lower module configured of a plurality of battery modules and lower battery managers connected to each of the battery modules by communicating with each of the lower battery managers. The method includes when the lower module is additionally connected, recognizing, by the upper controller, the addition of the lower module by exchanging a message with the added lower module. The added lower module is registered by assigning a new unique ID to the added lower module by exchanging the message with the added lower module by the upper controller. | 06-11-2015 |
20150191695 | COMPOSITION INCLUDING GELSOLIN AS EFFECTIVE INGREDIENT FOR INDUCING DIFFERENTIATION INTO DENDRITIC CELL AND METHOD OF INDUCING DIFFERENTIATION INTO DENDRITIC CELL - Disclosed are a composition including gelsolin as an effective ingredient for inducing differentiation into a dendritic cell, a method of inducing differentiation by using the composition, and a vaccine composition for treating cancer or an immune-mediated disease. In addition, a composition including gelsolin as an effective ingredient for inducing differentiation into a dendritic cell and a method of inducing differentiation into a dendritic cell by treating an immature dendritic cell with gelsolin are also disclosed. Further, a dendritic cell differentiated by using the method of inducing differentiation into the dendritic cell and a vaccine composition including the dendritic cell as an effective ingredient for treating cancer or an immune-mediated disease are disclosed. | 07-09-2015 |
20150197498 | ANTICANCER SUPPLEMENT AGENT INCLUDING BENZO[D]OXAZOL DERIVATIVE AS EFFECTIVE INGREDIENT - Disclosed is an anticancer supplement agent including a benzo[d]oxazole derivative as an effective ingredient. The benzo[d]oxazole derivative, which is a nuclear factor E2-related factor 2 (Nrf2) inhibitor, is capable of inhibiting activity of Nrf2 that induces an antioxidant enzyme to remove reactive oxygen species (ROS) that kills a cancer cell, thereby increasing production of ROS. Therefore, the benzo[d]oxazole derivative can be used as an anticancer supplement agent that shows therapeutic effects in anticancer agent therapy or radiation therapy, and in this regard, the benzo[d]oxazole derivative can overcome tolerance of the cancer cell to anticancer agent therapy or radiation therapy and enhance apoptotic effects on the cancer cell. | 07-16-2015 |
Patent application number | Description | Published |
20080229273 | SYSTEMS AND METHODS FOR UV LITHOGRAPHY - A method of designing a lithographic mask for use in lithographic processing of a substrate is disclosed. The lithographic processing comprises irradiating mask features of a lithographic mask using a predetermined irradiation configuration. In one aspect, the method comprises obtaining an initial design for the lithographic mask comprising a plurality of initial design features having an initial position. The method further comprises applying at least one shift to at least one initial design feature and deriving there from an altered design so as to compensate for shadowing effects when irradiating the substrate using a lithographic mask corresponding to the altered design in the predetermined irradiation configuration. Also disclosed herein are a corresponding design, a method of setting up lithographic processing, a system for designing a lithographic mask, a lithographic mask, and a method of manufacturing it. | 09-18-2008 |
20100190340 | Methods of forming fine patterns using a nanoimprint lithography - In a method of forming fine patterns, a photocurable coating layer is formed on a substrate. A first surface of a template makes contact with the photocurable coating layer. The first surface of the template includes at least two first patterns having a first dispersion degree of sizes, and at least one portion of the first surface of the template includes a photo attenuation member. A light is irradiated onto the photocurable coating layer through the template to form a cured coating layer including second patterns having a second dispersion degree of sizes. The second patterns are generated from the first patterns and the second dispersion degree is less than the first dispersion degree. The template is separate from the cured coating layer. A size dispersion degree of the patterns used in a nanoimprint lithography process may be adjusted by the light attenuation member, so that the fine patterns may be formed to have an improved size dispersion degree. | 07-29-2010 |
20100216062 | Reflective photomask and method of fabricating, reflective illumination system and method of process using the same - A reflective photomask includes a phase shift object on a substrate, a reflective layer stacked on the substrate and the phase shift object, a capping layer on the reflective layer, the capping layer including at least one surface portion having a bent shape, and a light absorption pattern on the capping layer, the light absorption pattern including at least one slit exposing the surface portion of the capping layer having the bent shape. | 08-26-2010 |
20100230864 | Nanoimprint Lithography Template and Method of Fabricating Semiconductor Device Using the Same - Nanoimprint lithography templates and methods of fabricating semiconductor devices using the nanoimprint lithography templates are provided. The nanoimprint lithography template includes a transparent substrate having a first refractive index, a stamp pattern on a surface on the transparent substrate and having inclined sidewalls, and a coating layer formed on the inclined sidewalls of the stamp pattern, the coating layer having a second refractive index higher than the first refractive index. | 09-16-2010 |
20100258744 | Flare Evaluation Methods - A flare evaluation method includes: extracting DC flare reference data using a preliminary measurement pattern mask and a dummy mask having an open region in which a preliminary measurement pattern is formed; providing a plurality of flare gauge sets including an opaque pad, a measurement pattern, and a flare pattern, the measure pattern being disposed at an inside of the opaque pad to measure strength of a flare, the flare pattern being disposed at an outside of the opaque pad to generate the flare; and detecting a change of a photo resist measurement pattern caused by the flare pattern and the measurement pattern for each of the flare gauge sets, wherein an outer radius of the flare pattern increases by a predetermined amount depending on the flare gauge set. | 10-14-2010 |
20110128518 | REFLECTIVE RETICLE CHUCK, REFLECTIVE ILLUMINATION SYSTEM INCLUDING THE SAME, METHOD OF CONTROLLING FLATNESS OF REFLECTIVE RETICLE USING THE CHUCK, AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE USING THE CHUCK - Provided are a reflective reticle chuck, a reflective illumination system including the chuck, a method of controlling the flatness of a reflective reticle using the chuck, and a method of manufacturing a semiconductor device using the chuck. The reflective reticle chuck includes a fixed portion and a mobile portion that together provide a securing surface for the reflective reticle. The mobile portion may alter a height of the securing surface relative to the fixed portion. | 06-02-2011 |
20110294074 | EXPOSURE APPARATUS AND EXPOSING METHOD USING THE APPARATUS - An exposure apparatus and an exposing method using the apparatus. The exposure apparatus includes a photomask having a plurality of optical sources attached to a substrate. | 12-01-2011 |
Patent application number | Description | Published |
20100119935 | CYLINDRICAL SECONDARY BATTERY OF IMPROVED SAFETY - Disclosed herein is a cylindrical secondary battery constructed in a structure in which a crimping region, at which a cap assembly is mounted to the open upper end of a cylindrical container having an electrode assembly mounted therein, is formed at the upper end of the container, wherein the crimping region is constructed in a structure in which the upper end of the crimping region is gently bent at a predetermined radius of curvature (R), such that the crimping region surrounds a gasket located at the inside of the crimping region, the bent front end extends inward, such that the bent end presses the gasket, and an inclination of a predetermined angle is formed at the sidewall of the crimping region, such that the upper part of the crimping region is directed inward. According to the secondary battery of the present invention, the sealability of the gasket is improved, and external impacts are partially absorbed by the inclination formed at the crimping region. Consequently, the deformation of the crimping region is minimized, whereby the leakage of the electrolyte is prevented, and the safety of the battery is greatly improved. | 05-13-2010 |
20110104838 | LIQUID CRYSTAL DISPLAY AND METHOD OF MAKING THE SAME - A method of making a liquid crystal display having a display region and a non-display region, the method comprises forming a thin film transistor (“TFT”) having a drain electrode on an insulating substrate, forming an inorganic layer and an organic insulating layer sequentially on the TFT, forming an organic insulating layer pattern, by patterning the organic insulating layer, comprising a first organic layer hole to expose the inorganic layer on the drain electrode and a second organic layer hole formed along a circumference of the display region where the organic insulating layer is partially removed, removing the inorganic layer exposed through the first organic layer hole and the organic insulating layer remaining in the second organic layer hole, and forming a sealant in the second organic hole. The present invention thus provides a method of making an LCD to prevent a color filter substrate separating from a TFT substrate using fewer masks. | 05-05-2011 |
20150284315 | METHOD FOR PURIFYING 1,4-DIAMINOBUTANE, 1,4-DIAMINOBUTANE PURIFIED BY SAID METHOD, AND POLYAMIDE PREPARED THEREFROM - A purification method of 1,4-diaminobutane, 1,4-diaminobutane purified using the purification method, and a polyamide prepared using the purified 1,4-diaminobutane are provided. The purification method of 1,4-diaminobutane includes: concentrating a fermentation solution including at least one of 1,4-diaminobutane and a salt thereof to obtain a concentrate; adding a base to the concentrate of the fermentation solution to prepare an basic composition having a pH 12 or higher; and recovering 1,4-diaminobutane from the basic composition. | 10-08-2015 |
20160052885 | METHOD FOR REFINING QUINOLINIC ACID - Provided is a method for refining quinolinic acid, including the steps of: preparing a fermentation solution including at least one of quinolinic acid and a salt thereof; removing microbial cells from the fermentation solution; preparing an acidic composition containing at least one of quinolinic acid and a salt thereof at a saturation concentration or more by adding an acid to the fermentation solution; and recovering a crystal of least one of quinolinic acid and a salt thereof from the acidic composition. | 02-25-2016 |