Patents by Inventor Chang-Hoon Choi

Chang-Hoon 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: 20230190862
    Abstract: The present invention relates to a composition for the prevention, amelioration, or treatment of urination-related disases, comprising cephalotocin. The cephalotocin according to the present invention modulates oxytocin receptors and vasopressin receptors, and has the effect of reducing urine volume by promoting water reabsorption in the kidneys. This means that cephalotocin has a significant antidiuretic effect, and thus, the cephalotocin of the present invention can be variously used in the field of prevention, amelioration, or treatment of urinary disorders or urination-related diseases.
    Type: Application
    Filed: October 7, 2022
    Publication date: June 22, 2023
    Applicants: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, NATIONAL MARINE BIODIVERSITY INSTITUTE OF KOREA
    Inventors: Seon Mi JO, Seung Hyun JUNG, Ki Hyun KIM, Dae Sung LEE, Dong Ho WOO, Ye Ji KIM, Chang hoon CHOI, Joung Wook SEO
  • Publication number: 20230078150
    Abstract: A double-resonant coil includes a closed conductor loop divided into at least two segments that are each connected via a second connection element configured to be converted from an electrically conductive state to an electrically insulating state. The double-resonant coil further includes an inductor or a capacitor connected in series to a first connection element so as to allow excitation of the closed conductor loop in a dipole mode at one frequency and with a homogeneous power distribution at a second frequency.
    Type: Application
    Filed: March 4, 2021
    Publication date: March 16, 2023
    Inventors: Suk Min Hong, Joerg Felder, Nadim Joni Shah, Chang-Hoon Choi
  • Publication number: 20230019863
    Abstract: The present disclosure provides a solution composition having excellent acid corrosion resistance and adhesion to a steel sheet, a steel sheet surface-treated using the solution composition, and a method for manufacturing the steel sheet. Specifically, the present disclosure provides a solution composition for treating a surface of a steel sheet, the solution composition containing colloidal silica, alkoxy silane, a solvent, an acidity regulator, an acrylate-based monomer, an adhesion improver including a backbone formed of siloxane bonds, and a metal chelate curing agent, a steel sheet surface-treated using the solution composition, and a method for manufacturing the steel sheet.
    Type: Application
    Filed: December 3, 2020
    Publication date: January 19, 2023
    Applicants: POSCO, NOROO COIL COATINGS CO., LTD.
    Inventors: Chang-Hoon Choi, Won-Ho Son, Chan-Seok Bang, Jae-Duck Ko
  • Publication number: 20220236353
    Abstract: A dipole antenna array includes at least two dipole antenna elements. Each respective dipole antenna element has at one end a fold which consists of a bend, a bent region, and the projection of the bent region of the dipole antenna element onto a length of the dipole antenna element. Each respective dipole antenna element at least partially encloses a cavity.
    Type: Application
    Filed: May 8, 2020
    Publication date: July 28, 2022
    Inventors: Chang-Hoon Choi, Joerg Felder, Suk Min Hong, Christoph Lerche, Nadim Joni Shah
  • Patent number: 11364590
    Abstract: Disclosed is a line catcher type water jet cutting apparatus. Portions of a workpiece to be converted into products are processed by water jet cutting in a common manner in an early stage of the water jet cutting. In a final stage of the water jet cutting, product fixing pushers press and fix the workpiece.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: June 21, 2022
    Assignee: TOPS CO., LTD.
    Inventors: Chang Hoon Choi, Tae Il Cho, Min Soo Song, Hyun Jung Kwon, Jang Sung Kim, Dong Jun Park, Mohamed Ahmed Hashish
  • Publication number: 20220137165
    Abstract: A coil assembly for use as a transmission and/or receiving coil in an MR system comprises a dipole antenna assembly with multiple dipole antennas. Connection elements are converted from an electrically conductive state to an electrically non-conductive state. In the electrically conductive state, the dipole antennas form a cylindrical volume coil and/or a conductor loop assembly, in particular a flat conductor loop assembly. The connection elements comprise blocking circuits which automatically block when a high-frequency alternating voltage with a frequency corresponding to the blocking frequency of the connection element blocking circuits is applied to the coil assembly.
    Type: Application
    Filed: December 5, 2019
    Publication date: May 5, 2022
    Applicant: Forschungszentrum Jülich GmbH
    Inventors: Suk Min HONG, Nadim Joni SHAH, Chang-Hoon CHOI, Jörg FELDER
  • Publication number: 20220055067
    Abstract: Provided is a bilayer composition for surface treatment of a steel plate and a surface-treated steel plate using same. The bilayer composition for surface treatment of a steel plate, comprising an undercoat coating composition including 1 to 12 wt % of a phenoxy resin, 0.001 to 1.0 wt % of colloidal silica, 0.001 to 1.0 wt % of a silane coupling agent, 0.1 to 1.0 wt % of a corrosion inhibitor, 0.001 to 1.0 wt % of a phosphoric acid compound as a long-term corrosion resistance improving agent, and a balance of water; and a topcoat coating composition including 0.1 to 5.0 wt % of an acrylic acid resin, 30 to 50 wt % of colloidal silica, 40 to 60 wt % of alkoxy silane, 5 to 15 wt % of an acrylate-based monomer, 0.01 to 1.00 wt % of an acidity control agent, and a balance of an organic solvent.
    Type: Application
    Filed: September 18, 2019
    Publication date: February 24, 2022
    Inventors: Chang-Hoon CHOI, Won-Ho SON, Hee-Jea EUN
  • Patent number: 11117284
    Abstract: Disclosed is a line catcher-type waterjet cutting apparatus in which a workpiece is subjected to the waterjet processing in a state of being clamped by a workpiece edge clamping device and a separate driving unit for the workpiece edge clamping device is provided, and in which the workpiece is clamped by the workpiece edge clamping device during the waterjet processing, while the workpiece is easily decoupled from the workpiece edge clamping device after the waterjet processing is completed, so that the waterjet processing is carried out while reciprocally conveying the workpiece in an X-direction, thereby increasing the processing accuracy of the waterjet processing and easily automating the waterjet processing.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: September 14, 2021
    Assignee: TOPS CO., LTD.
    Inventors: Chang Hoon Choi, Tae Il Cho, Min Soo Song, Hyun Jung Kwon, Jang Sung Kim, Dong Jun Park, Mohamed Ahmed Hashish
  • Patent number: 11108498
    Abstract: A receiving apparatus includes: a first decoder configured to decode a signal transmitted through a first layer from a layered division multiplexing (LDM) signal using a parity check matrix to generate low density parity check (LDPC) information word bits and parity bits; an encoder configured to encode the LDPC information word bits, generated by decoding the signal transmitted through the first layer, using the parity check matrix to generate parity bits corresponding only to preset columns in the parity check matrix; and a second decoder configured to decode a signal obtained by removing, from the LDM signal, a signal corresponding to the LDPC information word bits generated by decoding the signal transmitted through the first layer, the parity bits generated by the encoder, and the parity bits generated by the first decoder except the parity bits generated by the encoder, thereby to generate information word bits transmitted through a second layer.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: August 31, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hyun Park, Jung-pil Yu, Sung-kyu Jung, Chang-hoon Choi
  • Publication number: 20210253880
    Abstract: Provided is a composition for steel sheet surface coating, the composition comprising colloidal silica, a silane, a monomer, an organic resin, an acidity adjuster, a long-term corrosion-resistance improver, and a solvent; and a steel sheet coated with the composition. The steel sheet has excellent acid resistance, and maintains thickness uniformity thereof even when exposed to an acid for an extended period of time.
    Type: Application
    Filed: August 7, 2019
    Publication date: August 19, 2021
    Inventors: Chang-Hoon CHOI, Dong-Yun KIM, Won-Ho SON, Hee-Jea EUN, Jae-Duck KO
  • Publication number: 20210129289
    Abstract: Disclosed is a line catcher type water jet cutting apparatus. Portions of a workpiece to be converted into products are processed by water jet cutting in a common manner in an early stage of the water jet cutting. In a final stage of the water jet cutting, product fixing pushers press and fix the workpiece.
    Type: Application
    Filed: March 18, 2020
    Publication date: May 6, 2021
    Applicant: TOPS CO., LTD.
    Inventors: CHANG HOON CHOI, TAE IL CHO, MIN SOO SONG, HYUN JUNG KWON, JANG SUNG KIM, DONG JUN PARK, MOHAMED AHMED HASHISH
  • Publication number: 20210129368
    Abstract: Disclosed is a line catcher-type waterjet cutting apparatus in which a workpiece is subjected to the waterjet processing in a state of being clamped by a workpiece edge clamping device and a separate driving unit for the workpiece edge clamping device is provided, and in which the workpiece is clamped by the workpiece edge clamping device during the waterjet processing, while the workpiece is easily decoupled from the workpiece edge clamping device after the waterjet processing is completed, so that the waterjet processing is carried out while reciprocally conveying the workpiece in an X-direction, thereby increasing the processing accuracy of the waterjet processing and easily automating the waterjet processing.
    Type: Application
    Filed: January 24, 2020
    Publication date: May 6, 2021
    Applicant: TOPS CO., LTD.
    Inventors: CHANG HOON CHOI, TAE IL CHO, MIN SOO SONG, HYUN JUNG KWON, JANG SUNG KIM, DONG JUN PARK, MOHAMED AHMED HASHISH
  • Patent number: 10822705
    Abstract: Provided is a surface-treating solution composition, a zinc-based plated steel sheet surface-treated using the same, and a method for producing the same, wherein the surface-treatment solution composition includes: 10 wt % to 20 wt % of a trivalent chromium compound containing chromium phosphate (A) and chromium nitrate (B), the content ratio thereof, A/(A+B), satisfying 0.3 to 0.6; 20 wt % to 40 wt % of a silane-based sol-gel resin in which three types of silane compounds are crosslinked; 0.2 wt % to 0.4 wt % of a rust-inhibiting and corrosion-resistant agent; 0.1 wt % to 0.3 wt % of a molybdenum-based compound; 5 wt % to 10 wt % of a water-soluble cationic urethane resin; 0.5 wt % to 2.0 wt % of a silane coupling agent; 0.5 wt % to 2.0 wt % of an Al compound; and 25.3 wt % to 63.7 wt % of water.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: November 3, 2020
    Assignee: POSCO
    Inventors: Soo-Hyoun Cho, Won-Ho Son, Chang-Hoon Choi
  • Patent number: 10724967
    Abstract: An inspection apparatus for a semiconductor process and a semiconductor process device, the inspection apparatus including a transferer configured to transfer a process object between a plurality of chambers; at least one line camera installed above the transferer, the at least one line camera being configured to generate an original image by capturing an image of the process object transferred by the transferer; and a controller configured to receive the original image and to perform an inspection of the process object by correcting distortion of the original image due to a change in transfer speed of the transferer.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: July 28, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Myung Ho Jung, Young Su Ryu, Sung Chai Kim, Jong Su Kim, Won Guk Seo, Chang Hoon Choi, Jeong Su Ha
  • Patent number: 10681098
    Abstract: A transmitting apparatus is provided. The transmitting apparatus includes: an L1 signaling generator configured to generate L1 signaling including first information and second information; a frame generator configured to generate a frame including a payload including a plurality of sub frames; and a signal processor configured to insert a preamble including the L1 signaling in the frame and transmit the frame. The first information includes information required for decoding a first sub frame among the plurality of sub frames. Therefore, a processing delay in a receiving apparatus is reduced.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: June 9, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hyun Park, Min-ho Kim, Sung-woo Park, Sung-kyu Jung, Chang-hoon Choi, Doo-chan Hwang
  • Patent number: 10624926
    Abstract: The present invention relates to blood-derived luterial and a method for isolating and culturing the same. The luterial according to the present invention is a cell or cell-like structure having the following characteristics: (1) it is present in body fluids, including blood, sperm, intestinal juices, saliva, and cellular fluids; (2) it shows a positive staining with Janus green B, Acridine Orange and Rhodamine 123 in an immunofluorescence test; (3) in an optimal environment (pH 7.2-7.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: April 21, 2020
    Assignee: LUTERION CO., LTD.
    Inventors: Won Cheol Choi, Young Ah Kwon, Suk Hoon Choi, Chang Hoon Choi
  • Patent number: 10590384
    Abstract: The present disclosure relates to luterial, which is a mitochondrial-like unidentified nano-sized particle derived from a body fluid, and to a method for isolating the same.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: March 17, 2020
    Assignee: LUTERION CO., LTD.
    Inventors: Won Cheol Choi, Young Ah Kwon, Suk Hoon Choi, Chang Hoon Choi
  • Patent number: 10569194
    Abstract: The present disclosure relates to luterion, which is a mitochondrial-like micro-material, and separating and culturing methods for same and, more particularly, to a method for separating luterion by means of a filter having a pore of a particular size, luterion which is separated by means of the method thereof and has unique properties, and a culturing method for proliferation of the luterion.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: February 25, 2020
    Assignee: LUTERION CO., LTD.
    Inventors: Young Ah Kwon, Won Cheol Choi, Suk Hoon Choi, Chang Hoon Choi
  • Publication number: 20200032080
    Abstract: Provided is a composition for surface treatment of a steel sheet, the composition having excellent resistance to an acid, such as sulfuric acid, and to a coated steel sheet to which the composition for surface treatment is applied, wherein the composition for surface treatment comprises 30-50% wt % of colloidal silica containing 5-20 nm-sized silica, 40-60% wt % of silane containing three or more alkoxy groups, 5-15 wt % of an acrylate-based organic monomer, 0.01-1 wt % of an acid, and 1-15 wt % of a solvent.
    Type: Application
    Filed: September 28, 2017
    Publication date: January 30, 2020
    Inventors: Chang-Hoon CHOI, Dong-Yun KIM, Min-Ho JO, Jae-Duck KO, Won-Ho SON, Jong-Hwa KIM
  • Publication number: 20190386777
    Abstract: A receiving apparatus includes: a first decoder configured to decode a signal transmitted through a first layer from a layered division multiplexing (LDM) signal using a parity check matrix to generate low density parity check (LDPC) information word bits and parity bits; an encoder configured to encode the LDPC information word bits, generated by decoding the signal transmitted through the first layer, using the parity check matrix to generate parity bits corresponding only to preset columns in the parity check matrix; and a second decoder configured to decode a signal obtained by removing, from the LDM signal, a signal corresponding to the LDPC information word bits generated by decoding the signal transmitted through the first layer, the parity bits generated by the encoder, and the parity bits generated by the first decoder except the parity bits generated by the encoder, thereby to generate information word bits transmitted through a second layer.
    Type: Application
    Filed: August 29, 2019
    Publication date: December 19, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hyun Park, Jung-pil Yu, Sung-kyu Jung, Chang-hoon Choi