Patents by Inventor Chang-Hyun Oh

Chang-Hyun Oh 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: 11972941
    Abstract: Proposed is a precursor composition for forming a metal film including a zirconium compound represented by any one of Chemical Formulas 1 to 3 and a hafnium compound represented by any one of Chemical Formulas 4 to 6.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: April 30, 2024
    Assignee: SK TRICHEM
    Inventors: Chang Sung Hong, Yong Joo Park, Tae Hoon Oh, In Chun Hwang, Sang Kyung Lee, Dong Hyun Kim
  • Publication number: 20240132442
    Abstract: The present disclosure relates to a crystallization method of branched-chain amino acids capable of sustainably cycling ammonia, and branched-chain amino acid crystal produced by the method.
    Type: Application
    Filed: November 9, 2020
    Publication date: April 25, 2024
    Inventors: Jun Woo KIM, Shin Ae PARK, Ji Hyun SHIN, Jae Hun YU, Chang Yub OH, Min Jong KIM
  • Patent number: 11942181
    Abstract: A semiconductor device comprises: a first or a second path configured to transmit a first signal which swings between a ground level and a first level, a third path configured to transmit a second signal which swings between the ground level and a second level lower than the first level, a transmitter configured to output received the first signal through the first or second path as the second signal to the third path, and initialize in response to an enable signal, and a receiver configured to output received the second signal through the third path as the first signal through the first or second path, determine level of the second signal through a reference level that is regulated according to a fed-back level of an output terminal thereof, and initialize in response to the enable signal.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: March 26, 2024
    Assignee: SK hynix Inc.
    Inventors: Jinhyung Lee, Myeong Jae Park, Su Hyun Oh, Chang Kwon Lee
  • Patent number: 11931884
    Abstract: A smart drilling system includes a terminal configured to map a design space to an actual space and having perforation location information in the design space, a drilling machine including a drill for perforation and configured to perform perforation in the actual space under control of the terminal based on the perforation location information, and a total station configured to acquire location information of a reference point in the actual space for mapping the design space to the actual space and location information of the drilling machine in the actual space, and to transmit the location information of the reference point in the actual space and the location information of the drilling machine to the terminal, wherein the terminal recognizes and displays a perforable region or a perforable point at a current position of the drilling machine.
    Type: Grant
    Filed: March 25, 2022
    Date of Patent: March 19, 2024
    Assignees: GeoSystem Inc., Buildingpointkorea Inc.
    Inventors: Dong Hun Kang, Jong Hyun Oh, Ji Eun Kim, Chang Wook Joh, Young Hoon Koh
  • Patent number: 11332479
    Abstract: Provided is a pharmaceutical composition for preventing and treating tumors, the pharmaceutical composition including an imidazooxazole derivative compound, a solvate, a stereoisomer, or a pharmaceutically acceptable salt thereof as an active ingredient. The pharmaceutical composition is administered to an entity which has developed a tumor or is in danger of developing a tumor, and thus tumors can be prevented or treated.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: May 17, 2022
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Gamal El-din Mahmoud, Hong Seok Choi, Kyung Ho Yoo, Dong Keun Han, Chang Hyun Oh, Abdel-Maksoud Mohammed, I. El-Gamal Mohammed, Usama M. Ammar
  • Publication number: 20200131199
    Abstract: Provided is a pharmaceutical composition for preventing and treating tumors, the pharmaceutical composition including an imidazooxazole derivative compound, a solvate, a stereoisomer, or a pharmaceutically acceptable salt thereof as an active ingredient. The pharmaceutical composition is administered to an entity which has developed a tumor or is in danger of developing a tumor, and thus tumors can be prevented or treated.
    Type: Application
    Filed: December 31, 2019
    Publication date: April 30, 2020
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Gamal El-din MAHMOUD, Hong Seok CHOI, Kyung Ho YOO, Dong Keun HAN, Chang Hyun OH, Abdel-Maksoud MOHAMMED, I. El-Gamal MOHAMMED, Usama M. AMMAR
  • Patent number: 10570155
    Abstract: Provided is a pharmaceutical composition for preventing and treating tumors, the pharmaceutical composition including an imidazooxazole derivative compound, a solvate, a stereoisomer, or a pharmaceutically acceptable salt thereof as an active ingredient. The pharmaceutical composition is administered to an entity which has developed a tumor or is in danger of developing a tumor, and thus tumors can be prevented or treated.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: February 25, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Gamal El-din Mahmoud, Hong Seok Choi, Kyung Ho Yoo, Dong Keun Han, Chang Hyun Oh, Abdel-Maksoud Mohammed, I. El-Gamal Mohammed
  • Patent number: 10396408
    Abstract: The present invention relates to a waste battery treatment apparatus using continuous heat treatment, and a method for recovering valuable metals from lithium-based batteries using the same, the waste battery treatment apparatus comprising: a frame (10); a reaction reservoir (30) which is disposed in the inner space of the frame (10) and has thereinside a treatment space (S1) in which waste batteries to be treated are disposed; an inlet 34 (33) in which a gas blocking door (34) is disposed so as to selectively communicate the treating space (S1) with the outside, and which serves as a path through which an object to be treated is inputted to the treating space (S1) of the reaction reservoir (30). In addition, the waste battery treatment apparatus is provided with a vacuum forming means (40) which is connected to the treatment space (S1) of the reaction reservoir (30) to vacuumize the treatment space (S1).
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: August 27, 2019
    Assignee: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES (KIGAM)
    Inventors: Shun Myung Shin, Sung Ho Ju, Dong Ju Shin, Jei Pil Wang, Chang Hyun Oh
  • Publication number: 20190211032
    Abstract: Provided is a pharmaceutical composition for preventing and treating tumors, the pharmaceutical composition including an imidazooxazole derivative compound, a solvate, a stereoisomer, or a pharmaceutically acceptable salt thereof as an active ingredient. The pharmaceutical composition is administered to an entity which has developed a tumor or is in danger of developing a tumor, and thus tumors can be prevented or treated.
    Type: Application
    Filed: July 3, 2017
    Publication date: July 11, 2019
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Gamal El-din MAHMOUD, Hong Seok CHOI, Kyung Ho YOO, Dong Keun HAN, Chang Hyun OH, Abdel-Maksoud MOHAMMED, I. El-Gamal MOHAMMED
  • Publication number: 20180026318
    Abstract: The present invention relates to a waste battery treatment apparatus using continuous heat treatment, and a method for recovering valuable metals from lithium-based batteries using the same, the waste battery treatment apparatus comprising: a frame (10); a reaction reservoir (30) which is disposed in the inner space of the frame (10) and has thereinside a treatment space (S1) in which waste batteries to be treated are disposed; an inlet 34 (33) in which a gas blocking door (34) is disposed so as to selectively communicate the treating space (S1) with the outside, and which serves as a path through which an object to be treated is inputted to the treating space (S1) of the reaction reservoir (30). In addition, the waste battery treatment apparatus is provided with a vacuum forming means (40) which is connected to the treatment space (S1) of the reaction reservoir (30) to vacuumize the treatment space (S1).
    Type: Application
    Filed: February 4, 2016
    Publication date: January 25, 2018
    Inventors: Shun Myung SHIN, Sung Ho JU, Dong Ju SHIN, Jei Pil WANG, Chang Hyun OH
  • Patent number: 9618595
    Abstract: A method and apparatus for generating a magnetic resonance image including applying to a target first radio frequency (RF) pulses having phases and different frequencies to excite a plurality of sub-volumes constituting a volume of the target, and acquiring first magnetic resonance signals from the plurality of sub-volumes, and applying to the target second RF pulses having the same frequencies as the frequencies of the first RF pulses and phases at least one of which is different from the phases of the first RF pulses, and acquiring second magnetic resonance signals from the plurality of sub-volumes. Also, data may be generated based on the first and second magnetic resonance signals.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: April 11, 2017
    Assignees: Samsung Electronics Co., Ltd., Korea University Research and Business Foundation
    Inventors: Young Beom Kim, Yeunchul Ryu, Jaemock Yi, Chang-Hyun Oh
  • Patent number: 8903286
    Abstract: Disclosed herein are an image forming apparatus and a control method thereof. In the image forming apparatus, an intermediate transfer member is provided with a position identification mark, to enable sensing of a position of the intermediate transfer member after a cleaning unit is completely spaced apart from the intermediate transfer member. An image formation/transfer position can be controlled in response to a sensing signal of the position identification mark, so that respective colors of developer images may be formed and transferred to the same position on the intermediate transfer member in a state in which contact between the cleaning unit and the intermediate transfer member is released. This minimizes and/or prevents color discrepancy between the respective colors of developer images.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: December 2, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ho Gun You, Tae Il Jung, Chang Hyun Oh
  • Publication number: 20140203805
    Abstract: A method and apparatus for generating a magnetic resonance image including applying to a target first radio frequency (RF) pulses having phases and different frequencies to excite a plurality of sub-volumes constituting a volume of the target, and acquiring first magnetic resonance signals from the plurality of sub-volumes, and applying to the target second RF pulses having the same frequencies as the frequencies of the first RF pulses and phases at least one of which is different from the phases of the first RF pulses, and acquiring second magnetic resonance signals from the plurality of sub-volumes. Also, data may be generated based on the first and second magnetic resonance signals.
    Type: Application
    Filed: October 23, 2013
    Publication date: July 24, 2014
    Applicants: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young Beom Kim, Yeunchul Ryu, Jaemock Yi, Chang-Hyun Oh
  • Patent number: 8765749
    Abstract: Disclosed are a 1,6-substituted indole compound having a protein kinase inhibition activity, a pharmaceutically acceptable salt, and a pharmaceutical composition for prevention and treatment of cancers caused by abnormal cell growth comprising the compound as an effective ingredient. Since the novel indole compound exhibits superior inhibition activity against various protein kinases involved in growth factor signal transduction, it is useful as an agent for preventing or treating cancers caused by abnormal cell growth.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: July 1, 2014
    Assignee: Korea Institute of Science and Technology
    Inventors: Tae Bo Sim, Young Jin Ham, Kyung Ho Yoo, Chang Hyun Oh, Jung Mi Hah, Hwan Geun Choi, Hwan Kim, Eun Jin Jun
  • Patent number: 8754209
    Abstract: Disclosed are novel indazole derivatives represented by the following Chemical Formula 1 or pharmaceutically acceptable salts, hydrates or solvates thereof, and pharmaceutical compositions for the prevention or treatment of proliferative diseases, containing the same as an active ingredient. Having potent inhibitory effect against protein kinase, such as b-raf, KDR, Fms, Tie2, SAPK2a and Ret, inducing diseases caused by abnormal cell proliferation, the novel indazole derivatives can be used for the prevention or treatment of diseases caused by abnormal cell proliferation.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: June 17, 2014
    Assignees: Korea Institute of Science and Technology, Korea Research Institute of Chemical Technology, Korea Research Institute of Bioscience and Biotechnology
    Inventors: Tae Bo Sim, Jung Beom Son, Hwan Kim, Dong Sik Park, Hwan Geun Choi, Young Jin Ham, Jung Mi Hah, Kyung Ho Yoo, Chang Hyun Oh, So Ha Lee, Jae Du Ha, Sung Yun Cho, Byoung Mog Kwon, Dong Cho Han
  • Publication number: 20130255707
    Abstract: This invention aims to offer extension hair with multiple knots and its manufacturing method that fixes down the connecting string and the extension hair using the knot method of tying the connecting string on the extension hair, and maintains the knot for long periods of time without the extension hair attached in natural hair slipping by creating the knot using the above connecting string.
    Type: Application
    Filed: September 13, 2007
    Publication date: October 3, 2013
    Inventor: Chang Hyun Oh
  • Patent number: 8329708
    Abstract: Disclosed are a 1,3,6-substituted indole compound having inhibitory activity for protein kinases, a pharmaceutically acceptable thereof, and a pharmaceutical composition for prevention and treatment of diseases caused by abnormal cell growth including the compound as an active ingredient. Since the novel indole compound exhibits superior inhibitory activity for various protein kinases involved in growth factor signal transduction, it is useful as an agent for preventing or treating cancers caused by abnormal cell growth.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: December 11, 2012
    Assignee: Korea Institute of Science and Technology
    Inventors: Tae Bo Sim, Young Jin Ham, Kyung Ho Yoo, Chang Hyun Oh, Jung Mi Hah, Hwan Kim, Hwan Geun Choi, Jung-Hun Lee
  • Publication number: 20120271048
    Abstract: Disclosed are a 1,6-substituted indole compound having a protein kinase inhibition activity, a pharmaceutically acceptable salt, and a pharmaceutical composition for prevention and treatment of cancers caused by abnormal cell growth comprising the compound as an effective ingredient. Since the novel indole compound exhibits superior inhibition activity against various protein kinases involved in growth factor signal transduction, it is useful as an agent for preventing or treating cancers caused by abnormal cell growth.
    Type: Application
    Filed: October 20, 2010
    Publication date: October 25, 2012
    Applicant: Korea Institute of Science and Technology
    Inventors: Tae Bo Sim, Young Jin Ham, Kyung Ho Yoo, Chang Hyun Oh, Jung Mi Hah, Hwan Geun Choi, Hwan Kim, Eun Jin Jun
  • Patent number: 8273880
    Abstract: Disclosed herein are novel pyrazole compounds, pharmaceutically acceptable salts thereof, a method for preparing the same, and uses thereof as anticancer agents.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: September 25, 2012
    Assignee: Korea Institute of Science and Technology
    Inventors: So Ha Lee, Kyung Ho Yoo, Chang Hyun Oh, Dong Keun Han, Ibrahim Mustafa El-Deeb, Byung Sun Park, Su Jin Jung
  • Publication number: 20120130069
    Abstract: Disclosed are novel indazole derivatives represented by the following Chemical Formula 1 or pharmaceutically acceptable salts, hydrates or solvates thereof, and pharmaceutical compositions for the prevention or treatment of proliferative diseases, containing the same as an active ingredient. Having potent inhibitory effect against protein kinase, such as b-raf, KDR, Fms, Tie2, SAPK2a and Ret, inducing diseases caused by abnormal cell proliferation, the novel indazole derivatives can be used for the prevention or treatment of diseases caused by abnormal cell proliferation.
    Type: Application
    Filed: December 4, 2009
    Publication date: May 24, 2012
    Inventors: Tae Bo Sim, Jung Beom Son, Hwan Kim, Dong Sik Park, Hwan Geun Choi, Young Jin Ham, Jung Mi Hah, Kyung Ho Yoo, Chang Hyun Oh, So Ha Lee, Jae Du Ha, Sung Yun Cho, Byoung Mog Kwon, Dong Cho Han