Patents by Inventor Ji-yeon WOO

Ji-yeon WOO 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: 20240177844
    Abstract: An operating room allocation apparatus may be provided. The apparatus according to an embodiment of the present disclosure may include: an information obtaining unit configured to obtain information about patient's entry and exit times in each operating room; a first calculation unit configured to calculate a utilization rate of the operating room for each certain time period based on the patient's entry and exit times; and a second calculation unit configured to receive certain time information from a user and calculate an average utilization rate by time period in the received time information.
    Type: Application
    Filed: November 21, 2023
    Publication date: May 30, 2024
    Inventors: Jung Hwan MOON, Ji Hye WOO, Jun Young CHOI, Ho Jun SEOL, Jae Kyun CHOI, Seok Doo JEONG, Chae Yeon PARK, Mi Ja JU, Ihn Seon LEE, Do Hoon LIM
  • Publication number: 20240178687
    Abstract: Disclosed is an apparatus and method for controlling an operation of a secondary battery using a relative deterioration degree of an electrode. The method includes determining a SOC of the secondary battery whenever a pulse current flows through the secondary battery; determining an electrochemical reaction resistance from a voltage change amount measured during a preset initial time in each pulse current section and determining a lithium ion diffusion resistance from a voltage change amount measured during a remaining time except for the initial time; determining a deterioration-biased electrode by comparing a deterioration diagnosing resistance ratio, which is a relative ratio of the lithium ion diffusion resistance to the electrochemical reaction resistance, with a preset reference deterioration diagnosing resistance ratio; and adaptively adjusting an operation condition of a next charging/discharging cycle according to the type of the deterioration-biased electrode.
    Type: Application
    Filed: January 4, 2024
    Publication date: May 30, 2024
    Inventors: Yoon-Jung BAE, Ji-Yeon KIM, Kyung-Hwa WOO
  • Patent number: 11942810
    Abstract: Disclosed is an apparatus and method for controlling an operation of a secondary battery using a relative deterioration degree of an electrode. The method includes determining a SOC of the secondary battery whenever a pulse current flows through the secondary battery; determining an electrochemical reaction resistance from a voltage change amount measured during a preset initial time in each pulse current section and determining a lithium ion diffusion resistance from a voltage change amount measured during a remaining time except for the initial time; determining a deterioration-biased electrode by comparing a deterioration diagnosing resistance ratio, which is a relative ratio of the lithium ion diffusion resistance to the electrochemical reaction resistance, with a preset reference deterioration diagnosing resistance ratio; and adaptively adjusting an operation condition of a next charging/discharging cycle according to the type of the deterioration-biased electrode.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: March 26, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Yoon-Jung Bae, Ji-Yeon Kim, Kyung-Hwa Woo
  • Patent number: 11932993
    Abstract: A paper coating composition, methods for making the same, and a coated paper. The paper coating composition comprises a solvent, an ethylene-(meth)acrylic acid copolymer, a basic compound, and a polycarbodiimide-based curing agent, wherein the polycarbodiimide-based curing agent has a carbodiimide group equivalent of about 150 to about 350. The coating of the coated paper likewise comprises an ethylene-(meth)acrylic acid copolymer crosslinked by N-acylurea groups.
    Type: Grant
    Filed: May 26, 2023
    Date of Patent: March 19, 2024
    Assignees: SK Innovation Co., Ltd., SK Geo Centric Co., Ltd.
    Inventors: Dong Hyun Woo, Sang Ha Son, Ji Hyeon Choi, Bu Yeon Hwang
  • Patent number: 9628725
    Abstract: A pixel array to which a high dynamic range and a white pixel are applied, and an image sensor including the same are provided. The pixel array of the image sensor includes: a plurality of pixel groups, each pixel group including one or more long exposure pixels and one or more short exposure pixels, wherein each pixel group includes a first pixel, among the one or more long exposure pixels and the one or more short exposure pixels, having a white component and second to fourth pixels, among the one or more long exposure pixels and the one or more short exposure pixels, having first to third color components, the first pixel belonging to a first pixel group is a long exposure pixel, and the first pixel belonging to a second pixel group that is adjacent to the first pixel group is a short exposure pixel.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: April 18, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-hun Roh, Min-kyu Kim, Hye-mi Park, Ji-yeon Woo
  • Publication number: 20150146067
    Abstract: A pixel array to which a high dynamic range and a white pixel are applied, and an image sensor including the same are provided. The pixel array of the image sensor includes: a plurality of pixel groups, each pixel group including one or more long exposure pixels and one or more short exposure pixels, wherein each pixel group includes a first pixel, among the one or more long exposure pixels and the one or more short exposure pixels, having a white component and second to fourth pixels, among the one or more long exposure pixels and the one or more short exposure pixels, having first to third color components, the first pixel belonging to a first pixel group is a long exposure pixel, and the first pixel belonging to a second pixel group that is adjacent to the first pixel group is a short exposure pixel.
    Type: Application
    Filed: November 25, 2014
    Publication date: May 28, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-hun ROH, Min-kyu KIM, Hye-mi PARK, Ji-yeon WOO