Patents by Inventor Won CHEONG

Won CHEONG 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: 20250103629
    Abstract: Provided is a method for analyzing technology including an information collection step of designing a metaframe structure for keywords to be analyzed, deriving a technology structure based on the metaframe structure using a generative AI model, generating search keywords based on the derived technology structure, and searching and obtaining a plurality of documents based on the search keywords; and a technology classification step of refining the plurality of documents according to a similarity between the documents, performing preprocessing to utilize contents of the plurality of documents, and then performing detailed technology classification based on results obtained by performing content-based clustering, and a device for processing the method.
    Type: Application
    Filed: March 7, 2024
    Publication date: March 27, 2025
    Inventors: Byeong Ki Jeong, Kyung Min Song, Ky Sang Kwon, Seung Joon Cha, Dong Ha Kim, Hyun Han Kim, Jae Hyeong An, Ui Won Cheong
  • Patent number: 10998583
    Abstract: A composite solid electrolyte where self-discharge at room temperature is fundamentally prevented by adding a molten salt powder, which is an electric insulator at room temperature, or applying a molten salt passivation layer. The composite solid electrolyte includes: molten salt powder particles having electrical insulating properties at room temperature; and solid electrolyte powder particles on which surfaces thereof the molten salt powder particles are combined.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: May 4, 2021
    Assignee: AGENCY FOR DEFENSE DEVELOPMENT
    Inventors: Hae-Won Cheong, Min-U Kim, Sung-Ho Kang, Jang-Hyeon Cho
  • Patent number: 10312550
    Abstract: This invention relates to a lithium-sulfur battery and a method of manufacturing the same, and more particularly, to a molten salt-based lithium-sulfur battery and a method of manufacturing the same, in which a metal foam including lithium or a lithium alloy, as an anode active material, and sulfur or metal sulfide, as a cathode active material, is used as a support and a current collector, and a solid-state electrolyte is used to thus improve energy density and power output characteristics.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: June 4, 2019
    Assignee: AGENCY FOR DEFENSE DEVELOPMENT
    Inventors: Hae-Won Cheong, Chae-Nam Im, Ji-Youn Kim, Sung-Ho Kang, Jang-Hyeon Cho
  • Publication number: 20190006720
    Abstract: This invention relates to a lithium-sulfur battery and a method of manufacturing the same, and more particularly, to a molten salt-based lithium-sulfur battery and a method of manufacturing the same, in which a metal foam including lithium or a lithium alloy, as an anode active material, and sulfur or metal sulfide, as a cathode active material, is used as a support and a current collector, and a solid-state electrolyte is used to thus improve energy density and power output characteristics.
    Type: Application
    Filed: August 17, 2017
    Publication date: January 3, 2019
    Inventors: Hae-Won CHEONG, Chae-Nam IM, Ji-Youn KIM, Sung-Ho KANG, Jang-Hyeon CHO
  • Patent number: 9647260
    Abstract: Disclosed is a method of manufacturing an anode for a thermally activated reserve battery using a thin metal foam and a cup, which includes rolling a metal foam, coating the metal foam with a molten eutectic salt, impregnating the metal foam with lithium, and providing the metal foam with an electrode cup and a conductive separation membrane, and in which lithium having excellent capacity and output characteristics is employed in an anode for a thermal battery operating at high temperature.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: May 9, 2017
    Assignee: AGENCY FOR DEFENSE DEVELOPMENT
    Inventors: Yu Song Choi, Hye-Ryeon Yu, Jung Min Lee, Hae Won Cheong
  • Publication number: 20160276651
    Abstract: Disclosed is a method of manufacturing an anode for a thermally activated reserve battery using a thin metal foam and a cup, which includes rolling a metal foam, coating the metal foam with a molten eutectic salt, impregnating the metal foam with lithium, and providing the metal foam with an electrode cup and a conductive separation membrane, and in which lithium having excellent capacity and output characteristics is employed in an anode for a thermal battery operating at high temperature.
    Type: Application
    Filed: July 28, 2014
    Publication date: September 22, 2016
    Inventors: Yu Song CHOI, Hye-Ryeon YU, Jung Min LEE, Hae Won CHEONG
  • Publication number: 20080063114
    Abstract: Provided are a method and an apparatus for selectively encoding/decoding point sequences to maximize bit efficiency of a lightweight application scene representation (LASeR) binary stream. The point sequence encoding method includes the steps of: for each point sequence, (a) selecting one of exponential-Golomb (EG) encoding and fixed length (FL) encoding schemes; (b) when the FL encoding scheme is selected, encoding the point sequence using the FL encoding scheme to generate a binary stream; and (c) when the EG encoding scheme is selected, encoding the point sequence using the EG encoding scheme to generate a binary stream. The binary stream includes a flag indicating which encoding scheme is selected and a parameter k, with which the EG encoding can be most effectively performed, when the EG encoding scheme is selected. According to the encoding method, LASeR point sequences can be efficiently encoded and, during a decoding process, a large overhead is not incurred to a decoder (terminal).
    Type: Application
    Filed: October 13, 2005
    Publication date: March 13, 2008
    Inventors: Ye JOUNG, Ji CHA, Won CHEONG, Kyu KIM, Young LIM
  • Patent number: 6053491
    Abstract: A sheet feeder that has a first paper guide for automatic paper feeding built into a second paper guide used for manual paper feeding. Both of the guides recess into the tray of the sheet feeder and can be rotated simultaneously into a position perpendicular to the tray. When using non standard sized printable medium the dual guides make it easy to select between automatic and manual sheet loading mode. This increases the reliability of the sheet feeder and, thus, improves the functioning of the image forming apparatus.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: April 25, 2000
    Assignee: SamSung Electronics Co., Ltd.
    Inventor: Sang-Won Cheong
  • Patent number: 6022016
    Abstract: A paper cassette having an improved finger may be provided. The finger may be constructed using a flange for pressing down on sheets of paper that are loaded on the upper part of a tray. The flange has a pair of shaft connectors each bearing a bore that can accommodate a shaft. A plate can be pivotally attached to the flange via said shaft. A second pair of shaft connectors are attached to the plate for engaging the shaft. A spring may be used to bias the plate against any papers stacked on the tray to restrain the papers from premature loading into the electrophotographic apparatus. In addition restraining rings may be used to prevent the shaft form disengaging either of the pair of shaft connectors.
    Type: Grant
    Filed: November 4, 1998
    Date of Patent: February 8, 2000
    Assignee: SamSung Electronics Co., Ltd.
    Inventor: Sang-Won Cheong
  • Patent number: 5953024
    Abstract: An apparatus for determining an initial position and protecting a capping release error in an inkjet printer head which can constitute a sensor for determining a printing initial position and a device for preventing a capping state from being released during the head is at a homestation, with a single sensor and two actuators.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: September 14, 1999
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-duk Lee, Sang-won Cheong, Jong-ho Ha
  • Patent number: 5933172
    Abstract: An ink supply device for an ink-jet printer is disclosed, including a carriage held on a main frame and movable to right and left by a timing belt under the guidance of a carriage shaft; a head installed on the carriage and having a nozzle for spraying ink particles; a home position area where the carriage is moved periodically for cleaning or closing the head in response to a cleaning signal during printing; an ink storage tank installed on one side of the main frame to hold ink; and an ink refill unit rotatable in a counterclockwise direction for opening the ink storage tank to supply ink to the head, and rotatable in a clockwise direction to close the ink storage tank.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: August 3, 1999
    Assignee: SamSung Electronics Co., Ltd.
    Inventors: Jin-Ho Park, Sang-Won Cheong
  • Patent number: 5651538
    Abstract: A paper feeding method for an image forming apparatus having a sensing device for sensing the feeding state of paper fed from a manual paper feeding device and an automatic paper feeding device includes the steps of: picking up and feeding paper from the automatic paper feeding device in response to a printing command during an automatic paper feeding mode; determining whether or not a predetermined time period has elapsed after picking up the paper; determining whether the sensing device senses a paper input before the predetermined time period has elapsed; and providing output of an error message indicating a paper feeding error state when the sensing device senses the paper before the predetermined time period has elapsed.
    Type: Grant
    Filed: October 31, 1995
    Date of Patent: July 29, 1997
    Assignee: SamSung Electronics Co., Ltd.
    Inventors: Kwang-Young Chung, Sang-Won Cheong, Dong-Ho Lee
  • Patent number: 5647585
    Abstract: A novel paper cassette installed in an electrophotographic recording system for accommodating papers of different sizes includes a cassette body for containing papers of different sizes to be fed into the image recording system, said cassette body having a paper size display panel comprising a plurality of characters and symbols affixed on an exterior of a front wall to provide a visual display of different sizes of papers being fed into the image recording system, and a slit formed on the front wall extending in a width direction perpendicular to said paper feed direction; a width regulation plate movably installed in the cassette body for regulating placement of papers of different widths in the width direction perpendicular to said paper feed direction; a length regulation plate movably installed in the cassette body for regulating placement of papers of different lengths in the paper feed direction; and an indicator integrally extended from the width regulation plate through the slit formed on the front w
    Type: Grant
    Filed: June 9, 1995
    Date of Patent: July 15, 1997
    Assignee: SamSung Electronics Co., Ltd.
    Inventor: Sang-Won Cheong