Patents by Inventor Chi-Woo AN

Chi-Woo AN 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).

  • Publication number: 20230097253
    Abstract: The present inventors have arrived at the present application by confirming that a novel quinazolinone derivative exhibits therapeutic efficacy for metabolic disorders. The quinazolinone derivative according to the present application has a similar structure to that of idelalisib, but exhibits very different properties and a different mechanism of action from idelalisib. In addition, this derivative molecule was shown to have excellent efficacy against metabolic disorders, in particular lipid metabolic disorders, through different mechanism of action. The derivative molecule also showed excellent efficacy against non-alcoholic steatohepatitis (NASH). No non-alcoholic steatohepatitis treatment drugs have been approved at the time of filing.
    Type: Application
    Filed: January 22, 2021
    Publication date: March 30, 2023
    Inventors: Jong Woo KIM, Chi Woo LEE, Hye Shin KWON, Sang Hoon KWON, Ukil JU, Yoonseon YOO, Bo Ra CHOI
  • Patent number: 11333937
    Abstract: A display substrate includes an insulating substrate, a first gate line, a first lower electrode, a second lower electrode, a first upper electrode, and a second upper electrode. The insulating substrate includes a first pixel region and a second pixel region located at a first direction from the first pixel region. The first gate line extends in a second direction crossing the first direction on the insulating substrate. The first and the second lower electrodes are in the first and the second pixel regions, respectively. The first upper electrode overlaps the first lower electrode in the first pixel region and includes a first slit pattern extending in a third direction different from the first and the second directions. The second upper electrode overlaps the second lower electrode in the second pixel region and includes a second slit pattern extending in a fourth direction different from the first to the third directions.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: May 17, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seong-Jun Lee, Jin-Oh Park, Mu-Kyung Jeon, Yong-Kyu Jang, Dong-Hoon Lee, Chi-Woo Kim
  • Patent number: 11291002
    Abstract: An apparatus and a method for operating a mobile station in a wireless communication system are provided. The method includes receiving first information transmitted on a secondary carrier from a base station, and transmitting second information for feedback related to the secondary carrier at a feedback region in a primary carrier based on the first information to the base station.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: March 29, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Jeong Kang, Chi-Woo Lim, Jae-Weon Cho, Tae-Young Kim
  • Publication number: 20210283440
    Abstract: A fire extinguishing system for a tire of a vehicle is capable of effectively responding to a fire in all tire areas of the vehicle, and of spraying fire extinguishing agent selectively only for the tire having the fire, thereby performing effective fire extinguishing.
    Type: Application
    Filed: November 9, 2020
    Publication date: September 16, 2021
    Inventors: Chi Woo Lee, Hyeon Gi Shin
  • Patent number: 11089658
    Abstract: The present invention relates to a wet planar heating element and a method manufacturing the same. The element including: a planar heating unit including an upper waterproof film layer, a lower waterproof film layer, a planar heating layer, and an electrode layer; an external waterproof film layer; and a non-woven fabric layer. According to the present invention, it is possible to minimize leakage current due to pores of a non-woven fabric substrate and a low dielectric constant of air in air pockets, thereby solving problems that an earth leakage circuit breaker operates. Accordingly, wet construction can be performed, power consumption can be reduced, and an electrical fire risk can be remarkably lowered. In addition, it is possible to improve flexibility of the planar heating element, whereby the use of the planar heating element can be expanded and the efficiency of the construction work can be increased.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: August 10, 2021
    Assignee: NDT ENGINEERING & AEROSPACE CO., LTD.
    Inventors: Ki-Hyun Lim, Chi-Woo Noh
  • Patent number: 10931400
    Abstract: The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data transmission rate beyond the 4G communication system such as LTE. A decoding method using a polar code according to an embodiment of the present disclosure comprises the steps of: determining a first function for decoding input bits and a second function, which is independent from a log likelihood ratio (LLR) value of a previous input bit by the first function; and decoding the input bits in parallel using the first function and the second function. Also, the method comprises the steps of: determining an internal frozen bit using at least one input frozen bit which has a predetermined value of a predetermined position from among the input bits; and determining LLR values for layer bits sequentially from the higher layers of N layers.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: February 23, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min Jang, Woo-Myoung Park, Jae-Yoel Kim, Seok-Ki Ahn, Chi-Woo Lim
  • Publication number: 20200411881
    Abstract: Disclosed is a catalyst complex for a fuel cell. The catalyst complex includes a support including carbon (C), platinum (Pt) supported on the support, and an iridium (Ir) compound supported on the support, and the iridium compound includes at least one of iridium oxide represented by Chemical Formula 1, IrOx, and iridium-transition-metal oxide represented by Chemical Formula 2, IrMOx, wherein M is a transition metal selected from the group consisting of Fe, Co, Cu, Ni and combinations thereof, and x is from 1 to 2.
    Type: Application
    Filed: April 7, 2020
    Publication date: December 31, 2020
    Inventors: Jung Han Yu, Bo Ki Hong, Jong Kil Oh, Hyun Joo Lee, Chi Woo Roh
  • Patent number: 10851294
    Abstract: There is provided a fluoride phosphor composite including: fluoride phosphor core particles that may be expressed by the empirical formula AxMFy:Mn4+, wherein A may be at least one selected from the group consisting of Li, Na, K, Rb, and Cs, M may be at least one selected from the group consisting of Si, Ti, Zr, Hf, Ge, and Sn, the composition ratio (x) of A may satisfy 2?x?3, the composition ratio (y) of F may satisfy 4?y?7, each fluoride phosphor composite particle may be coated with a Mn-free fluoride coating. The Mn-free fluoride coating may have a thickness less than or equal to 35% of the size of each fluoride phosphor composite particle.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: December 1, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji Ho You, In Hyung Lee, Tae Hoon Kim, Jong Won Park, Chul Soo Yoon, Chi Woo Lee
  • Publication number: 20200157048
    Abstract: The present application relates to a novel pentadienoyl compound and a pharmaceutical composition including the same. The pentadienoyl compound of the present application may be used to prevent or treat fatty liver and fatty liver-related disease by inhibiting lipogenesis and lipid accumulation in cells and activating lipid metabolism. In addition, the pentadienoyl compound of the present application may increase a SIRT1 expression level in cells or SIRT1 activity, and thus may be used to prevent or treat a SIRT1-mediated disease. In addition, the pentadienoyl compound of the present application may reduce a CK2 expression level in cells or CK2 activity, and thus may be used to prevent or treat a CK2-mediated disease.
    Type: Application
    Filed: March 26, 2019
    Publication date: May 21, 2020
    Inventors: Jong Woo KIM, Chi Woo LEE, Hak Sung KIM, Dirgha Raj JOSHI, Sang Hoon KWON
  • Patent number: 10630422
    Abstract: A method and apparatus for channel encoding and channel decoding in a wireless communication system are provided. The channel encoding method includes generating a first parity set and a second parity set based on information bits, determining a number of additional parity bits based on a number of the information bits and a required coding rate, generating the determined number of additional parity bits using the information bits, and generating a codeword including the information bits, the first parity set, the second parity set, and the generated additional parity bits.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: April 21, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seok-Ki Ahn, Jae-Yoel Kim, Chi-Woo Lim, Min Jang, Kwang-Taik Kim, Woo-Myoung Park
  • Patent number: 10577597
    Abstract: In accordance with one embodiment of the present invention, there is disclosed an apparatus for nucleic acid extraction and an operation method thereof. The apparatus for nucleic acid extraction includes: a first rack having a plurality of sample tube receivers arranged in a circle; a second rack having a plurality of elution tube receivers arranged in a circle on an outer side thereof and a washing solution receiver positioned at the center thereof, a part of the washing solution receiver extending outwards to have projections formed in alternation with a plurality of the elution tube receivers; a main body having the first and second racks arranged to position the first rack on the top of the second rack; a rotational driver for separately rotating the first and second racks; a dispenser for separately dispensing a washing solution and an eluting solution into sample tubes; and a pressurizer for maintaining the inside of the sample tubes under raised pressure.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: March 3, 2020
    Assignee: NANOBIOSYS INC.
    Inventors: Sung Woo Kim, Jun Hur, Eun-Sub Kim, Chi-Woo An, Song Gyun Jung, Jae Young Byun, Duck Joong Kim, Mi Ree Kim, Do Hee Kim, Kang Choi, Jin Pyung Kim
  • Patent number: 10560216
    Abstract: Fifth Generation (5G) or pre-5G communication system for supporting a data transfer rate higher than that of a fourth Generation (4G) communication system, such as Long Term Evolution (LTE), and subsequent systems. The present disclosure provides a method for transmitting a signal by a transmission terminal in a communication system using a Low Density Parity Check (LDPC) code. The method include receiving a change request for changing a coding rate of the LDPC code, from a reception terminal; determining a first coding rate based on the change request; and transmitting information on the first coding rate in respond to the change request, to a reception terminal, wherein the change request for changing the coding rate comprises at least one of information indicating a coding rate determined by the reception terminal, or information indicating a state of the reception terminal.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: February 11, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chi-Woo Lim, Jae-Yoel Kim, Woo-Myoung Park, Seok-Ki Ahn, Min Jang
  • Patent number: 10542479
    Abstract: The present invention relates to a two-step search procedure for D2D communication. A method for D2D communication includes: obtaining a discovery code and a multicast identifier to be used for transmitting additional information on an application program through a D2D multicast subframe, based on an identifier of an application program of a device; and broadcasting the discovery code and the multicast identifier in a discovery subframe.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: January 21, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-Hoon Park, Hyun-Seok Ryu, Anil Agiwal, Young-Bin Chang, Kyung-Kyu Kim, Sang-Kyu Baek, Chi-Woo Lim
  • Patent number: 10531431
    Abstract: A method for allocating resources in Device-to-Device (D2D) communication in a wireless network is provided. The method includes requesting, by a device, resource allocation from an enhanced Node B (eNB) and causing the device to be allocated, from the eNB, a Resource Block (RB) for transmitting one of D2D discovery and communication data and control information. The RB includes information about a location of the resource-allocated time or frequency.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: January 7, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Seok Ryu, Seung-Hoon Park, Chi-Woo Lim
  • Patent number: 10511060
    Abstract: A 5th generation (5G) or pre-5G communication system for supporting a data transmission rate higher than that of a 4th generation (4G) communication system such as long term evolution (LTE) is disclosed. The present disclosure relates to a rate compatible low-density parity-check (RC-LDPC) encoding method and device therefor. The encoding method includes using LDPC in a communication system, including the operations of LDPC encoding information bits by a first encoding rate, and performing a concatenated single parity check (SPC) encoding for the encoded bits by at least one second encoding rate lower than the first encoding rate.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: December 17, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min Jang, Seok-Ki Ahn, Chi-Woo Lim, Jae-Yoel Kim, Woo-Myoung Park
  • Patent number: 10480625
    Abstract: An emergency steering system for a vehicle, may include a planetary gear mounted in an inlet space of a gear box for a steering apparatus so that the planetary gear is ordinarily operated at a gear ratio of 1:1 and has an increased gear ratio in the event of failure of a main steering device; and a gear ratio increasing device mounted to an upper plate portion of the gear box to increase the gear ratio of the planetary gear.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: November 19, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Chi Woo Lee
  • Patent number: 10454618
    Abstract: The present disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as a long term evolution (LTE). A method and apparatus for transmitting a signal in a transmitting apparatus in a communication system supporting a rate compatible-low density parity check (RC-LDPC) code are provided. The method includes encoding information bits based on a first parity check matrix and a first code rate to generate a codeword, processing the codeword to generate a transmission signal, and transmitting the transmission signal.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: October 22, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min Jang, Seok-Ki Ahn, Chi-Woo Lim, Jae-Yoel Kim, Woo-Myoung Park
  • Publication number: 20190297626
    Abstract: An apparatus and a method for operating a mobile station in a wireless communication system are provided. The method includes receiving first information transmitted on a secondary carrier from a base station, and transmitting second information for feedback related to the secondary carrier at a feedback region in a primary carrier based on the first information to the base station.
    Type: Application
    Filed: June 12, 2019
    Publication date: September 26, 2019
    Inventors: Hyun-Jeong KANG, Chi-Woo LIM, Jae-Weon CHO, Tae-Young KIM
  • Patent number: 10375715
    Abstract: A method for performing scheduling by a first base station over a wireless communication network, and an apparatus therfor are provided. The method includes receiving first channel status information (CSI) measured by at least one user equipment (UE) positioned in coverage of the first base station and second CSI, determining a first transmission rate for any one of the at least one UE positioned in the coverage of the first base station and a second transmission rate for any one of the at least one UE positioned in the coverage of the second base station, determining a third transmission rate for a first UE among the at least one UE positioned in the coverage of the first base station and a fourth transmission rate for a second UE among the at least one UE positioned in the coverage of the second base station, and performing scheduling.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: August 6, 2019
    Assignees: Samsung Electronics Co., Ltd., THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Seok-Ki Ahn, Kwang-Taik Kim, Young-Han Kim, Yong-Seok Kim, Chi-Woo Lim
  • Patent number: 10356771
    Abstract: A 5th-generation (5G) or pre-5G communication system which is to support a higher data transfer rate beyond a 4G communication system such as a long term evolution (LTE) is provided. The method for transmitting a downlink signal by a base station in a wireless communication system supporting non-orthogonal multiple access (NOMA) includes the steps of selecting a pair of terminals including one short-distance terminal and at least one long-distance terminal which will share an identical downlink transmission resource, generating a superimposed signal in which a signal for the short-distance terminal and a signal for the long-distance terminal are superimposed on one another, generating information necessary for cancelling the signal of the long-distance terminal from the superimposed signal, transmitting the generated information necessary for cancelling the signal of the long-distance terminal to the short-distance terminal, and transmitting the generated superimposed signal to the pair of terminals.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: July 16, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chi-Woo Lim, Woo-Myoung Park