Patents by Inventor Sung-Hee Choi

Sung-Hee Choi 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).

  • Patent number: 11975076
    Abstract: The present invention relates to antibody-drug conjugates (ADCs) wherein a plurality of active agents are conjugated to an antibody through at least one branched linker. The branched linker may comprise a branching unit, and two active agents are coupled to the branching unit through a secondary linker and the branching unit is coupled to the antibody by a primary linker. The active agents may be the same or different. In certain such embodiments, two or more such branched linkers are conjugated to the antibody, e.g., 2-4 branched linkers, which may each be coupled to a different C-terminal cysteine of a heavy or light chain of the antibody. The branched linker may comprise one active agent coupled to the branching unit by a first branch and a second branch that comprises a polyethylene glycol moiety coupled to the branching unit. In certain such embodiments, two or more such branched linkers are conjugated to the antibody, e.g.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: May 7, 2024
    Assignee: LegoChem Biosciences, Inc.
    Inventors: Yong Zu Kim, Yeong Soo Oh, Jeiwook Chae, Ho Young Song, Chul-Woong Chung, Yun Hee Park, Hyo Jung Choi, Kyung Eun Park, Hyoungrae Kim, Jinyeong Kim, Ji Young Min, Sung Min Kim, Byung Soo Lee, Dong Hyun Woo, Ji Eun Jung, Su In Lee
  • Publication number: 20240145474
    Abstract: A semiconductor device includes a substrate, a first active pattern disposed on the substrate, a second active pattern stacked on the first active pattern, a first gate structure extending to intersect the first active pattern and the second active pattern, a second gate structure spaced apart from the first gate structure and extending to intersect the first active pattern and the second active pattern, a first epitaxial pattern interposed between the first gate structure and the second gate structure, and connected to the first active pattern, a second epitaxial pattern interposed between the first gate structure and the second gate structure, and connected to the second active pattern, an insulating pattern interposed between the first epitaxial pattern and the second epitaxial pattern, and a semiconductor film interposed between the insulating pattern and the second epitaxial pattern, the semiconductor film extending along a top surface of the insulating pattern.
    Type: Application
    Filed: May 9, 2023
    Publication date: May 2, 2024
    Inventors: Kyung ho KIM, Myung Il KANG, Sung Uk JANG, Kyung Hee CHO, Do Young CHOI
  • Publication number: 20240136538
    Abstract: Disclosed is an ionomer for a high-temperature polymer electrolyte membrane fuel cell, which includes a phosphorus (P)-containing functional group having proton conductivity and partially contains fluorine in the main chain thereof.
    Type: Application
    Filed: December 20, 2022
    Publication date: April 25, 2024
    Inventors: Won Jae Choi, Songi Oh, Da Hee Kwak, Ji Hoon Jang, Sung Hee Shin, Jae Suk Lee, Hye Min Oh, In Gyu Bak
  • Patent number: 11967269
    Abstract: A scan driver includes: a first transistor having a first electrode coupled to an output scan line, a second electrode coupled to a first power line, and a gate electrode coupled to a first node; a second transistor having a first electrode coupled to a first clock line, a second electrode coupled to the output scan line, and a gate electrode coupled to a second node; a third transistor having a first electrode coupled to the first node, a second electrode coupled to a first input scan line, and a gate electrode coupled to a second clock line; and a fourth transistor having a first electrode coupled to the second node and a second electrode and a gate electrode, which are coupled to a second input scan line, wherein the first input scan line and the second input scan line are different from each other.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: April 23, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chul Kyu Kang, Sung Hwan Kim, Soo Hee Oh, Dong Sun Lee, Sang Moo Choi
  • Patent number: 11966622
    Abstract: A memory storage device that performs real-time monitoring is provided. The memory storage device comprises a memory controller, and a status indicating module/circuit, wherein the memory controller is configured to perform a first a second initialization operation, the first and second initialization operations performed in response to turning-on of the memory storage device, to generate a first status parameter regarding a status of the memory storage device in which the first initialization operation is performed, and to generate a second status parameter regarding the status of the memory storage device in which a second initialization operation is performed. The status indicating circuit includes a first transistor configured to operate on the basis of the first status parameter, a first resistor connected to the first transistor, a second transistor configured to operate on the basis of the second status parameter, and a second resistor connected to the second transistor.
    Type: Grant
    Filed: March 9, 2022
    Date of Patent: April 23, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung Oh Huh, Jong Kyu Choi, Soo-Hyeong Kim, Dong Hee Kim, Young San Kang
  • Patent number: 11932618
    Abstract: Disclosed are novel compounds of Chemical Formula 1, optical isomers of the compounds, and pharmaceutically acceptable salts of the compounds or the optical isomers. The compounds, isomers, and salts exhibit excellent activity as GLP-1 receptor agonists. In particular, they, as GLP-1 receptor agonists, exhibit excellent glucose tolerance, thus having a great potential to be used as therapeutic agents for metabolic diseases. Moreover, they exhibit excellent pharmacological safety for cardiovascular systems.
    Type: Grant
    Filed: March 13, 2023
    Date of Patent: March 19, 2024
    Assignee: ILDONG PHARMACEUTICAL CO., LTD.
    Inventors: Hong Chul Yoon, Kyung Mi An, Myong Jae Lee, Jin Hee Lee, Jeong-geun Kim, A-rang Im, Woo Jin Jeon, Jin Ah Jeong, Jaeho Heo, Changhee Hong, Kyeojin Kim, Jung-Eun Park, Te-ik Sohn, Changmok Oh, Da Hae Hong, Sung Wook Kwon, Jung Ho Kim, Jae Eui Shin, Yeongran Yoo, Min Whan Chang, Eun Hye Jang, In-gyu Je, Ji Hye Choi, Gunhee Kim, Yearin Jun
  • Publication number: 20240084025
    Abstract: Provided is a method for purifying an anti-4-1BB/anti-HER2 bispecific antibody, the method of which includes carrying out affinity chromatography with a sodium acetate buffer containing a certain inorganic salt as an elution buffer. The purification method of the presently claimed subject matter increases the elution of an antibody in the intact form, thereby being able to provide an anti-4-1BB/anti-HER2 bispecific antibody in the intact form in high purity and high yield.
    Type: Application
    Filed: January 21, 2022
    Publication date: March 14, 2024
    Applicant: YUHAN CORPORATION
    Inventors: Ju-Young PARK, Sung-Hyun CHOI, Yun-Hee CHOI, Won-Tae KIM
  • Publication number: 20240073416
    Abstract: The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal.
    Type: Application
    Filed: November 6, 2023
    Publication date: February 29, 2024
    Applicants: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, Universily-lndustry Cooperation Group of Kyung Hee University
    Inventors: Sung Chang LIM, Ha Hyun LEE, Se Yoon JEONG, Hui Yong KIM, Suk Hee CHO, Jong Ho KIM, Jin Ho LEE, Jin Soo CHOI, Jin Woong KIM, Chie Teuk AHN, Dong Gyu SIM, Seoung Jun OH, Gwang Hoon PARK, Sea Nae PARK, Chan Woong JEON
  • Publication number: 20240067668
    Abstract: The present invention relates to a heteroaryl derivative compound and a use thereof. Since the heteroaryl derivative of the present invention exhibits excellent inhibitory activity against EGFR, the heteroaryl derivative can be usefully used as a therapeutic agent for EGFR-associated diseases.
    Type: Application
    Filed: December 29, 2021
    Publication date: February 29, 2024
    Inventors: Yi Kyung Ko, Ah Reum Han, Jin Hee Park, Yeong Deok Lee, Hye Rim Im, Kyun Eun Kim, Dong Keun Hwang, Su Been Nam, Myung Hoe Heo, Se Rin Cho, Eun Hwa Ko, Sung Hwan Kim, Hwan Geun Choi
  • Patent number: 10030908
    Abstract: Disclosed herein is a natural gas liquefaction process using a single refrigeration cycle adopting a mixed refrigerant, and therefore having a simple structure and thus a compact system which is easy to operate, and further, after the mixed refrigerant is separated into two refrigerant parts, the two refrigerant parts are not mixed with each other but go through condensing (cooling), expanding, heat-exchanging, and compressing stages individually, and thus, optimal temperature and pressure conditions are applied to each of the separated refrigerant parts to increase efficiency of the liquefaction process.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: July 24, 2018
    Assignee: KOREA GAS CORPORATION
    Inventors: Sang Gyu Lee, Kun Hyung Choe, Young Myung Yang, Chul Gu Lee, Kyu Sang Cha, Chang Won Park, Sung Hee Choi, Yeong Beom Lee
  • Publication number: 20130133362
    Abstract: Disclosed herein is a natural gas liquefaction process using a single refrigeration cycle adopting a mixed refrigerant, and therefore having a simple structure and thus a compact system which is easy to operate, and further, after the mixed refrigerant is separated into two refrigerant parts, the two refrigerant parts are not mixed with each other but go through condensing (cooling), expanding, heat-exchanging, and compressing stages individually, and thus, optimal temperature and pressure conditions are applied to each of the separated refrigerant parts to increase efficiency of the liquefaction process.
    Type: Application
    Filed: August 11, 2011
    Publication date: May 30, 2013
    Inventors: Sang Gyu Lee, Kun Hyung Choe, Young Myung Yang, Chul Gu Lee, Kyu Sang Cha, Chang Won Park, Sung Hee Choi, Yeong Beom Lee
  • Publication number: 20100233192
    Abstract: Disclosed is a method for preparing activated lymphocytes, which comprises isolating lymphocytes from peripheral blood and proliferating and activating the isolated lymphocytes in vitro. According to the disclosed method, highly effective toxic cells can be prepared in large amounts by culturing human peripheral lymphocytes in the presence of an anti-CD3 antibody, IFN-? and IL-2. The activated lymphocytes proliferated according to the disclosed preparation method comprise both CD3-CD56+ (natural killer cell marker) cells that are the main components of LAK cells, and CD3+CD56+ cells that are the main components of CIK cells, and can be cultured in large amounts. Thus, the lymphocyte cells can show a significantly higher anticancer effect compared to when the LAK cells and the CIK cells are used alone.
    Type: Application
    Filed: April 18, 2007
    Publication date: September 16, 2010
    Applicant: Binex Co., Ltd.
    Inventors: Soon Won Park, Young Ok Son, Cheol Hun Son, You Soo Park, Jung Hwa Ban, Kyoung-Gyu Lee, Jeong Su Jang, Chi Dug Kang, Won-Suk Kim, Kyung Chool An, Back Chun Lee, Ju In Kim, Eun Kyung Park, Sung Hee Choi
  • Patent number: 7087246
    Abstract: A controlled release preparation of insulin and its method are provided. The controlled release preparation of insulin contains microparticles obtained by microencapsulation of uniform microcystals of insulin using biodegradable polymeric materials. Since the denaturation of insulin that may occur during microencapsulation is reduced, the stability of the preparation can be increased. Also, the ratio of insulin to a polymer carrier is increased, which is suitable for pulmonary delivery. Further, the controlled release preparation of insulin can continuously exhibit pharmaceutical efficacy in vivo in a stable manner for an extended period of time.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: August 8, 2006
    Assignee: Mi Tech Company Limited
    Inventors: Chan-Hwa Kim, Jai-Hyun Kwon, Sung-Hee Choi
  • Publication number: 20030125237
    Abstract: A controlled release preparation of insulin and its method are provided. The controlled release preparation of insulin contains microparticles obtained by microencapsulation of uniform microcystals of insulin using biodegradable polymeric materials. Since the denaturation of insulin that may occur during microencapsulation is reduced, the stability of the preparation can be increased. Also, the ratio of insulin to a polymer carrier is increased, which is suitable for pulmonary delivery. Further, the controlled release preparation of insulin can continuously exhibit pharmaceutical efficacy in vivo in a stable manner for an extended period of time.
    Type: Application
    Filed: December 23, 2002
    Publication date: July 3, 2003
    Inventors: Chan-Hwa Kim, Jai-Hyun Kwon, Sung-Hee Choi
  • Patent number: 5942511
    Abstract: The, present invention relates to a novel allylthiopyridazine derivative represented by formula (I) which exhibits a superior effect for prevention and treatment or hepatic diseases induced by toxic substances and for protection of human tissues from radiation: ##STR1## or a pharmaceutically acceptable salt thereof, in which R.sub.1 represents halogen atom, lower alkoxy, dialkylaminoalkoxy, hydroxyalkoxy, phenoxy substituted or unsubstituted with lower alkyl, benzyloxy, or phenyl, andR.sub.2 and R.sub.3 independently of one another represent hydrogen or lower alkyl, or R.sub.2 and R.sub.3 together with carbon atom to which they are attached can form a saturated or unsaturated 6-membered ring,provided that R.sub.2 and R.sub.3 are other than hydrogen when R.sub.1 is chloro; and to a process for preparing thereof and a pharmaceutical composition containing the same as an effective component.
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: August 24, 1999
    Assignees: Soon Kyoung Kwon, Seoul Pharm. Co., Ltd.
    Inventors: Soon Kyoung Kwon, Sang Geon Kim, Young Nam Park, Mi Kyung Kim, Sung Hee Choi, Hea Soon Shin