Patents by Inventor Kyu Suk Choi

Kyu Suk 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).

  • Publication number: 20240145683
    Abstract: A positive electrode active material including a lithium nickel-based composite oxide including secondary particles formed by aggregation of one or more primary particles, wherein a part of cations and a part of anions in the lithium nickel-based composite oxide are substituted, respectively, with cations M? and fluorine anions (F?) in a fluorine-based compound.
    Type: Application
    Filed: May 22, 2023
    Publication date: May 2, 2024
    Inventors: Kyu Suk HAN, Jin Hyeok CHOI, Jae Hoon SHIN, Seul Gi LEE
  • Publication number: 20240147677
    Abstract: A lower module of a power electronic device includes a lower module included in a power electronic device that is divided into an upper module and a lower module by an intermediate plate and comprises a blower fan to introduce air into the inner space of the lower module; a plurality of capacitors installed in a suspended form on the intermediate plate and spaced apart from the blower fan; a heat sink having a plurality of heat dissipation fins through which heat generated from a heating component disposed on the upper module is conducted, and disposed adjacent to the capacitors to cool the plurality of heat dissipation fins by air moved from the plurality of capacitors; a DC reactor cooled by the air moved from the heat dissipation fins; and a discharge plate having a vent hole to discharge the air moved from the DC reactor to the outside.
    Type: Application
    Filed: December 3, 2021
    Publication date: May 2, 2024
    Inventors: Soo Yong HWANG, Kil Ju JUNG, Su Hyeong LEE, Won Suk CHOI, Kyu Hwa KIM
  • Patent number: 11970493
    Abstract: The present disclosure provides autotaxin (ATX) inhibitor compounds and compositions including said compounds. The present disclosure also provides methods of using said compounds and compositions for inhibiting ATX. Also provided are methods of preparing said compounds and compositions, and synthetic precursors of said compounds.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: April 30, 2024
    Assignee: ILDONG PHARMACEUTICAL CO., LTD.
    Inventors: Sung-Ku Choi, Yoon-Suk Lee, Sung-Wook Kwon, Kyung-Sun Kim, Jeong-Geun Kim, Jeong-Ah Kim, An-Na Moon, Sun-Young Park, Jun-Su Ban, Dong-Keun Song, Kyu-Sic Jang, Ju-Young Jung, Soo-Jin Lee
  • Patent number: 8900508
    Abstract: Disclosed are a method and an apparatus for fabricating solar-grade high purity polycrystalline silicon compacts. Silicon compacts are fabricating by loading polycrystalline silicon powders into a mold without addition of binders in a vacuum atmosphere, and pressurizing and heating the polycrystalline silicon powders. Heating method includes a high-frequency induction heating type, an Ohmic heating type, and a high current supply type.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: December 2, 2014
    Assignees: Korea Institute of Industrial Technology, KCC Corporation
    Inventors: Byoung Moon Moon, Je Sik Shin, Kyu Suk Choi
  • Publication number: 20090191112
    Abstract: Disclosed are a method and an apparatus for fabricating solar-grade high purity polycrystalline silicon compacts. Silicon compacts are fabricating by loading polycrystalline silicon powders into a mold without addition of binders in a vacuum atmosphere, and pressurizing and heating the polycrystalline silicon powders. Heating method includes a high-frequency induction heating type, an Ohmic heating type, and a high current supply type.
    Type: Application
    Filed: January 23, 2009
    Publication date: July 30, 2009
    Applicants: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY, ARCHESOLAR CO., LTD.
    Inventors: Byoung Moon MOON, Je Sik Shin, Kyu Suk Choi
  • Patent number: 6577499
    Abstract: The present invention relates to an arm harness with a control panel for operating multiple electronic devices contained by the arm harness. The present invention enables a user to conveniently carry electronic devices, such as a cellular phone, an audio player (e.g., tape player, mini-tape player, CD player, etc.). The present invention enables a user to perform other activities by freeing up the user's hands while enabling the user to enjoy music or other recording, communicating by a cell phone etc. The present invention also facilitates transportation of electronic devices in containers within the arm harness of the present invention. The control panel may include a display and control buttons that operate the electronic devices contained by the arm harness. In addition, the control panel may control the sound and other audio qualities emitted by the electronic devices attached to the control panel.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: June 10, 2003
    Inventor: Kyu Suk Choi