Patents by Inventor Chang-Song Lee
Chang-Song Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11958844Abstract: The present invention relates to novel compounds having a histone deacetylase 6 (HDAC6) inhibitory activity, optical isomers thereof or pharmaceutically acceptable salts thereof, a pharmaceutical use thereof, and a method for preparing the same. According to the present invention, the novel compounds, optical isomers thereof or pharmaceutically acceptable salts thereof have the histone deacetylase 6 (HDAC6) inhibitory activity, and are effective in preventing or treating HDAC6-related diseases, comprising infectious diseases; neoplasm; internal secretion; nutritional and metabolic diseases; mental and behavioral disorders; neurological diseases; eye and ocular adnexal diseases; circulatory diseases; respiratory diseases; digestive diseases; skin and subcutaneous tissue diseases; musculoskeletal system and connective tissue diseases; and teratosis or deformities, and chromosomal aberration.Type: GrantFiled: July 25, 2019Date of Patent: April 16, 2024Assignee: Chong Kun Dang Pharmaceutical Corp.Inventors: Chang Sik Lee, Jung Taek Oh, Hokeun Yun, Hyeseung Song, Hyunjin Michael Kim
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Patent number: 11953211Abstract: A method and an apparatus for real-time analysis of the district heating network is disclosed. According to an embodiment of the present disclosure, a method for analyzing a district heating network including pipes and fluids inside the pipes includes receiving, by a processor, pipe data representing a structure of the pipes; receiving, by the processor, input data on at least one of the physical state of the district heating network and the flow of fluids; calculating, by the processor, data for at least one of the physical state of the district heating network or the flow of fluids using the pipe data and the input data.Type: GrantFiled: January 20, 2023Date of Patent: April 9, 2024Assignee: GS Power Co. Ltd.Inventors: Yuan Hu Li, Chang Yeol Yoon, Ki Song Lee, Kun Young Lee, Tae Gon Kim
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Patent number: 11943987Abstract: A color conversion substrate and a display device are provided. The color conversion substrate includes a base substrate, a first color filter and a second color filter disposed on a surface of the base substrate, a first partition layer disposed between the first color filter and the second color filter, a second partition layer disposed on the first partition layer, a first wavelength conversion pattern disposed on the first color filter and a second wavelength conversion pattern disposed on the second color filter, wherein the first partition layer includes a first lower surface disposed on the first color filter and a second lower surface disposed on the second color filter.Type: GrantFiled: June 11, 2020Date of Patent: March 26, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Gak Seok Lee, Byung Chul Kim, In Ok Kim, Jae Min Seong, In Seok Song, Keun Chan Oh, Ji Eun Jang, Chang Soon Jang, Sun Kyu Joo, Ha Lim Ji
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Publication number: 20240050883Abstract: A dust amount estimating apparatus, which estimates the amount of dust generated in a process for generating BPA prills from liquid BPA introduced into a prill tower. The dust amount estimating apparatus includes a fine particle amount estimating unit to estimate the amount of fine particles generated in the prill generating process from flow rate information of the liquid BPA introduced into the prill tower using a learned fine particle amount estimating model; and a dust amount estimating unit configured to estimate the amount of dust generated in the prill generating process from the amount of fine particles estimated by the fine particle amount estimating unit using a learned dust amount estimating model.Type: ApplicationFiled: September 13, 2022Publication date: February 15, 2024Inventors: Pil-Sung JO, Seung-Han NAM, Jin-Hyeok CHOE, Min-Ki KIM, Hong-Kyu SEO, Chang-Song LEE
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Publication number: 20230358812Abstract: A battery management apparatus according to an embodiment of the present disclosure includes: a feature value extracting unit configured to extract a feature value of a learning battery at every charging and discharging cycle; a first state judging unit configured to judge a state of the learning battery at every charging and discharging cycle, based on the feature value extracted by the feature value extracting unit and a criterion value preset to correspond to the feature value; a labelling unit configured to set a label for the feature value of the learning battery at every charging and discharging cycle, based on the state of the learning battery judged by the first state judging unit; a model learning unit configured to learn a classification model for judging a state of an analysis battery based on the feature value for which the label is set by the labelling unit; and a second state judging unit configured to judge the state of the analysis battery based on the classification model learned by the modelType: ApplicationFiled: November 26, 2021Publication date: November 9, 2023Inventors: Pil-Sung JO, Seok-Kyeong LEE, Sung-Bin PARK, Soo-Min PARK, Chang-Song LEE
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Publication number: 20200216350Abstract: Provided is a method for manufacturing a glass substrate, comprising steps of: cooling a glass substrate transported by a plurality of rollers rotating at a predetermined speed; predicting a crack defect rate of the glass substrate in accordance with a plurality of predictive factors related to crack defects of the glass substrate and rotational speed information of the respective rollers, in the transport process; and adjusting the rotational speed of each roller so that the crack defect rate of the glass substrate is lowered. Also provided is an apparatus for manufacturing a glass substrate, comprising a transport part for cooling a glass substrate transported by a plurality of rollers rotating at a predetermined speed, a prediction part for predicting a crack defect rate of the glass substrate through a partial least squares regression analysis, and a control part for controlling the rotation speed of each roller.Type: ApplicationFiled: September 20, 2018Publication date: July 9, 2020Inventors: Chang Song LEE, Kyu Hwang LEE, Kyu Jong LEE
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Patent number: 9513419Abstract: An apparatus for controlling a color of a film includes a dyeing bath to dip a washed PVA film in an aqueous iodine solution and an aqueous potassium solution and then dye the PVA film therewith, a complementary bath to dip the PVA film in an aqueous potassium solution and then dye the PVA film therewith, a device oven to dry the PVA film having the oriented iodine and potassium, a 4-stage oven to dry the PVA film dried in the device oven, and a central controller to predict a color value of the polarizing film.Type: GrantFiled: September 20, 2012Date of Patent: December 6, 2016Assignee: LG CHEM, LTD.Inventors: Chang Song Lee, Ho Kyung Lee, Eungki Lee, DaeHyeon Kim, Eung Jin Jang
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Patent number: 9059470Abstract: A cathode for a fuel cell includes a gas diffusion layer contacting with a separator having a channel and a catalyst layer interposed between the gas diffusion layer and an electrolyte membrane. The catalyst layer of the cathode has two portions with different water-repelling properties, and a portion of the catalyst layer that does not face a channel has a higher water-repelling property than a portion that faces a channel. This cathode controls a water-repelling property of the catalyst layer differently according to locations, so it is possible to keep an amount of moisture in an electrode in a suitable way and to restrain generation of flooding, thereby improving the performance of the cell.Type: GrantFiled: May 9, 2013Date of Patent: June 16, 2015Assignee: LG CHEM, LTD.Inventors: Hyuk Kim, Won-Ho Lee, Chang-Song Lee, Seong-Uk Jeong, Sang-Hyun Lee
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Publication number: 20140340748Abstract: An apparatus for controlling a color of a film includes a dyeing bath to dip a washed PVA film in an aqueous iodine solution and an aqueous potassium solution and then dye the PVA film therewith, a complementary bath to dip the PVA film in an aqueous potassium solution and then dye the PVA film therewith, a device oven to dry the PVA film having the oriented iodine and potassium, a 4-stage oven to dry the PVA film dried in the device oven, and a central controller to predict a color value of the polarizing film.Type: ApplicationFiled: September 20, 2012Publication date: November 20, 2014Inventors: Chang Song Lee, Ho Kyung Lee, Eungki Lee, DaeHyeon Kim, Eung Jin Jang
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Patent number: 8767296Abstract: Disclosed herein is an apparatus for preparation of a film exhibiting polarizing properties by dyeing a substrate film with iodine and then orienting the same through a continuous process, comprising a first bath equipped with a thermometer to measure a temperature of the first bath; a second bath equipped with a thermometer to measure a temperature of the second bath and a densitometer to measure a concentration of the second bath; a third bath in which the iodine-dyed PVA film is stretched by a drawing roller; an oven equipped with a thermometer to measure a temperature of the oven; and a central controller that predicts a transmittance of the polarizing film, and then, controls the temperatures of the first and second baths and the oven and an amount of a composition fed to the second bath.Type: GrantFiled: June 2, 2011Date of Patent: July 1, 2014Assignee: LG Chem, Ltd.Inventors: Ho Kyung Lee, Chang Song Lee, Kyu Hwang Lee, Eung Jin Jang, Joong Suk Nah
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Publication number: 20130170032Abstract: Disclosed herein is an apparatus for preparation of a film exhibiting polarizing properties (‘polarizing film’) by dyeing a substrate film with iodine and then orienting the same through a continuous process, and the foregoing apparatus includes, a first bath equipped with a thermometer to measure a temperature of the first bath (‘first bath thermometer’), in which a polyvinylalcohol (PVA) film as a substrate film is washed; a second bath equipped with a thermometer to measure a temperature of the second bath (‘second bath thermometer’) and a densitometer to measure a concentration of the second bath (‘second bath densitometer’), in which the washed PVA film is dipped in an iodine solution and dyed therein; a third bath in which the iodine-dyed PVA film is stretched by a drawing roller to thereby orient the dyed iodine; an oven equipped with a thermometer to measure a temperature of the oven (‘oven thermometer’) to dry the iodine-oriented PVA film; and a central controller that predicts a transmittance of theType: ApplicationFiled: June 2, 2011Publication date: July 4, 2013Applicant: LG Chem, Ltd.Inventors: Ho Kyung Lee, Chang Song Lee, Kyu Hwang Lee, Eung Jin Jang, Joong Suk Nah
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Patent number: 8460836Abstract: A cathode for a fuel cell includes a gas diffusion layer contacting with a separator having a channel and a catalyst layer interposed between the gas diffusion layer and an electrolyte membrane. The catalyst layer of the cathode has two portions with different water-repelling properties, and a portion of the catalyst layer that does not face a channel has a higher water-repelling property than a portion that faces a channel. This cathode controls water-repelling property of the catalyst layer differently according to locations, so it is possible to keep an amount of moisture in an electrode in a suitable way and to restrain generation of flooding, thereby improving the performance of the cell.Type: GrantFiled: October 8, 2008Date of Patent: June 11, 2013Assignee: LG Chem, Ltd.Inventors: Hyuk Kim, Won-Ho Lee, Chang-Song Lee, Seong-Uk Jeong, Sang-Hyun Lee
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Publication number: 20110020724Abstract: An electrode for a fuel cell includes a gas diffusion layer contacting with a separator having a channel and a catalyst layer interposed between the gas diffusion layer and an electrolyte membrane. The catalyst layer of the electrode has two portions with different hydrophilicities. A portion of the catalyst layer that faces a channel has a higher hydrophilicity than a portion that does not face a channel. This electrode may control hydrophilicity of the catalyst layer differently according to locations, so it is possible to keep an amount of moisture in an electrode in a suitable way, thereby improving the performance of the cell.Type: ApplicationFiled: December 23, 2008Publication date: January 27, 2011Applicant: LG CHEM, LTD.Inventors: Hyuk Kim, Seong-Uk Jeong, Chang-Song Lee, Won-Ho Lee
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Publication number: 20100304269Abstract: The present invention relates to an electrode for a fuel cell including a catalyst layer that includes a catalyst portion containing a plurality of first catalyst particles dispersed in an ionomer binder resin; and an ionomer portion containing a plurality of second catalyst particles dispersed in an ionomer binder resin, and having a lower concentration of catalyst particles than the catalyst portion, wherein the ionomer portion has a shape of a wall or plural pillars in the catalyst portion. The electrode for a fuel cell according to the present invention has a separate ionomer portion in the catalyst layer, and thus has excellent ion conductivity in an electrode layer and the remarkably improved reaction surface area to enhance the performance of the fuel cell.Type: ApplicationFiled: October 6, 2008Publication date: December 2, 2010Applicant: LG CHEM, LTD.Inventors: Hyuk Kim, Won-Ho Lee, Chang-Song Lee, Seong-Uk Jeong, Sang-Hyun Lee
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Publication number: 20100297519Abstract: A cathode for a fuel cell includes a gas diffusion layer contacting with a separator having a channel and a catalyst layer interposed between the gas diffusion layer and an electrolyte membrane. The catalyst layer of the cathode has two portions with different water-repelling properties, and a portion of the catalyst layer that does not face a channel has a higher water-repelling property than a portion that faces a channel. This cathode controls water-repelling property of the catalyst layer differently according to locations, so it is possible to keep an amount of moisture in an electrode in a suitable way and to restrain generation of flooding, thereby improving the performance of the cell.Type: ApplicationFiled: October 8, 2008Publication date: November 25, 2010Applicant: LG Chem, LtdInventors: Hyuk Kim, Won-Ho Lee, Chang-Song Lee, Seong-Uk Jeong, Sang-Hyun Lee