Patents by Inventor Hwa-su Kim

Hwa-su Kim 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: 11894701
    Abstract: A battery management system may include a plurality of balancing resistors respectively forming balancing discharging paths of cells connected in series to each other, a plurality of balancing switches respectively connected between the cells and the balancing resistors, and configured to control cell-balancing of each of the cells, a voltage-detecting circuit for detecting respective cell voltages of the cells, and a battery controller for acquiring respective balancing capacities of the cells based on the cell voltages, for obtaining duty cycles of the balancing switches according to the balancing capacities, and for scaling the duty cycles of the balancing switches according to a sum of duty cycles of two adjacent cells from among the cells.
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: February 6, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Takao Hidaka, Hwa-Su Kim
  • Patent number: 11411255
    Abstract: A battery pack may include: a battery configured to include a plurality of cells; a cell balancing circuit configured to include a discharge circuit for each of the cells; a controller configured to output a first complete discharge command signal based on a control signal inputted from the outside; a mechanical switch configured to output a second complete discharge signal by mechanical manipulation; and a cell balancing controller configured to control the cell balancing circuit such that complete discharge of each cell is performed through the discharge circuits when the first complete discharge signal and the second complete discharge signal are received.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: August 9, 2022
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hwa-Su Kim, Thomas Trathnigg
  • Patent number: 11327122
    Abstract: A voltage detection integrated circuit may include: a voltage detection circuit electrically connected to a plurality of cells to detect a cell voltage of a corresponding one of the plurality of cells; a plurality of cell balancing switches configured to conduct or block a flow of a balancing current of a corresponding cell among the plurality of cells; a temperature sensor configured to detect an internal temperature of the voltage detection integrated circuit; and a controller configured to differently select a number of cell balancing switches that are simultaneously turned on depending on the internal temperature, and to turn on the selected switches, when the internal temperature is below a first threshold value.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: May 10, 2022
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hwa-Su Kim, Takao Hidaka, Cheolgi Son, Jiwon Jung, Wonkyoung Cho
  • Publication number: 20210305817
    Abstract: A battery management system may include a plurality of balancing resistors respectively forming balancing discharging paths of cells connected in series to each other, a plurality of balancing switches respectively connected between the cells and the balancing resistors, and configured to control cell-balancing of each of the cells, a voltage-detecting circuit for detecting respective cell voltages of the cells, and a battery controller for acquiring respective balancing capacities of the cells based on the cell voltages, for obtaining duty cycles of the balancing switches according to the balancing capacities, and for scaling the duty cycles of the balancing switches according to a sum of duty cycles of two adjacent cells from among the cells.
    Type: Application
    Filed: June 11, 2021
    Publication date: September 30, 2021
    Inventors: Takao HIDAKA, Hwa-Su KIM
  • Patent number: 11101668
    Abstract: A battery management system may include a plurality of balancing resistors respectively forming balancing discharging paths of cells connected in series to each other, a plurality of balancing switches respectively connected between the cells and the balancing resistors, and configured to control cell-balancing of each of the cells, a voltage-detecting circuit for detecting respective cell voltages of the cells, and a battery controller for acquiring respective balancing capacities of the cells based on the cell voltages, for obtaining duty cycles of the balancing switches according to the balancing capacities, and for scaling the duty cycles of the balancing switches according to a sum of duty cycles of two adjacent cells from among the cells.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: August 24, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Takao Hidaka, Hwa-Su Kim
  • Patent number: 11050266
    Abstract: A battery management system includes a plurality of balancing resistors that are respectively connected to a plurality of cells that are connected in series to each other, and that respectively form a part of a balancing discharge path of each of the cells, a plurality of balancing switches configured to respectively control a flow of balancing current of the balancing discharge path, a voltage detection circuit configured to detect a voltage of opposite ends of a respective balancing resistor with respect to a balancing target cell among the cells when cell balancing is started, and a balancing control circuit configured to acquire a voltage cumulative value corresponding to a cumulative value of balancing discharge current of the balancing target cell using the voltage of the opposite ends of the respective balancing resistor, and configured to determine whether cell balancing on the balancing target cell is terminated based on the voltage cumulative value.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: June 29, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Takao Hidaka, Hwa-Su Kim
  • Publication number: 20210119267
    Abstract: A battery pack may include: a battery configured to include a plurality of cells; a cell balancing circuit configured to include a discharge circuit for each of the cells; a controller configured to output a first complete discharge command signal based on a control signal inputted from the outside; a mechanical switch configured to output a second complete discharge signal by mechanical manipulation; and a cell balancing controller configured to control the cell balancing circuit such that complete discharge of each cell is performed through the discharge circuits when the first complete discharge signal and the second complete discharge signal are received.
    Type: Application
    Filed: September 15, 2017
    Publication date: April 22, 2021
    Inventors: Hwa-Su KIM, Thomas TRATHNIGG
  • Publication number: 20190339335
    Abstract: A voltage detection integrated circuit may include: a voltage detection circuit electrically connected to a plurality of cells to detect a cell voltage of a corresponding one of the plurality of cells; a plurality of cell balancing switches configured to conduct or block a flow of a balancing current of a corresponding cell among the plurality of cells; a temperature sensor configured to detect an internal temperature of the voltage detection integrated circuit; and a controller configured to differently select a number of cell balancing switches that are simultaneously turned on depending on the internal temperature, and to turn on the selected switches, when the internal temperature is below a first threshold value.
    Type: Application
    Filed: October 26, 2017
    Publication date: November 7, 2019
    Inventors: Hwa-Su KIM, Takao HIDAKA, Cheolgi SON, Jiwon JUNG, Wonkyoung CHO
  • Publication number: 20190280489
    Abstract: A battery management system may include a plurality of balancing resistors respectively forming balancing discharging paths of cells connected in series to each other, a plurality of balancing switches respectively connected between the cells and the balancing resistors, and configured to control cell-balancing of each of the cells, a voltage-detecting circuit for detecting respective cell voltages of the cells, and a battery controller for acquiring respective balancing capacities of the cells based on the cell voltages, for obtaining duty cycles of the balancing switches according to the balancing capacities, and for scaling the duty cycles of the balancing switches according to a sum of duty cycles of two adjacent cells from among the cells.
    Type: Application
    Filed: March 5, 2019
    Publication date: September 12, 2019
    Inventors: Takao HIDAKA, Hwa-Su KIM
  • Publication number: 20190267815
    Abstract: A battery management system includes a plurality of balancing resistors that are respectively connected to a plurality of cells that are connected in series to each other, and that respectively form a part of a balancing discharge path of each of the cells, a plurality of balancing switches configured to respectively control a flow of balancing current of the balancing discharge path, a voltage detection circuit configured to detect a voltage of opposite ends of a respective balancing resistor with respect to a balancing target cell among the cells when cell balancing is started, and a balancing control circuit configured to acquire a voltage cumulative value corresponding to a cumulative value of balancing discharge current of the balancing target cell using the voltage of the opposite ends of the respective balancing resistor, and configured to determine whether cell balancing on the balancing target cell is terminated based on the voltage cumulative value.
    Type: Application
    Filed: February 26, 2019
    Publication date: August 29, 2019
    Inventors: Takao Hidaka, Hwa-Su Kim
  • Patent number: 10361573
    Abstract: A battery pack includes a first battery with a first capacity, a second battery with a second capacity less than the first capacity, and a variable resistor. The second battery has a larger maximum discharge current than the first battery. The variable resistor circuit limits the discharge current of the first battery to a predetermined limit current value.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: July 23, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hyun-Jun Do, Hwa-Su Kim, Cheol-Gi Son, Dong-Rak Kim, Kwang-Min Yoo, In-Seob Song, Jeong-Kurn Park, Su-Jun Park, Jong-Rock Choi, Jun-Young Kim
  • Publication number: 20160172888
    Abstract: A battery pack includes a first battery with a first capacity, a second battery with a second capacity less than the first capacity, and a variable resistor. The second battery has a larger maximum discharge current than the first battery. The variable resistor circuit limits the discharge current of the first battery to a predetermined limit current value.
    Type: Application
    Filed: August 13, 2015
    Publication date: June 16, 2016
    Inventors: Hyun-Jun DO, Hwa-Su KIM, Cheol-Gi SON, Dong-Rak KIM, Kwang-Min YOO, In-Seob SONG, Jeong-Kurn PARK, Su-Jun PARK, Jong-Rock CHOI, Jun-Young KIM
  • Patent number: 8012684
    Abstract: The present invention relates to mutation genes of the AQP (aquaporin), a method for detecting cancer using mutations and expressions of the AQP and a DNA chip possessing oligonucleotides of mutated AQP base sequence. In case of the present method for detecting cancer and DNA chip using the AQP's mutations and expressions, it is highly accurate, rapid and effective in cancer diagnosis.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: September 6, 2011
    Assignee: Goodgene, Inc.
    Inventors: Woo-chul Moon, Chul-so Moon, Young-ho Moon, Byung-gu Kim, Dong-hwan Kim, Chan-jae Shin, Tae-han Um, Hwa-su Kim, Mi-kyung Song, Hyeung-jae Kim, Seok-beom Song
  • Patent number: 7550452
    Abstract: The present invention relates to cationic lipids, methods for preparing some and methods for effectively transporting anionic molecular substances into cell by using said cationic lipids. The present lipids are compatible to gene therapy due to their stability and highly transporting effects.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: June 23, 2009
    Assignee: Goodgene, Inc.
    Inventors: Woo-chul Moon, Chul-so Moon, Byung-gu Kim, Chan-jae Shin, Hyeung-jae Kim, Young-ho Moon, Dong-hwan Kim, Tae-han Um, Hwa-su Kim, Mi-kyung Song, Seok-beom Song
  • Patent number: 7470534
    Abstract: The present invention relates to mutation genes of the AQP(aquaporin), a method for detecting cancer using mutations and expressions of the AQP and a DNA chip possessing oligonucleotides of mutated AQP base sequence. In case of the present method for detecting cancer and DNA chip using the AQP's mutations and expressions, it is highly accurate, rapid and effective in cancer diagnosis.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: December 30, 2008
    Assignee: Goodgene, Inc.
    Inventors: Woo-chul Moon, Chul-so Moon, Young-ho Moon, Byung-gu Kim, Dong-hwan Kim, Chan-jae Shin, Tae-han Um, Hwa-su Kim, Mi-kyung Song, Hyeung-jae Kim, Seok-beom Song
  • Publication number: 20080312094
    Abstract: The present invention relates to mutation genes of the AQP (aquaporin), a method for detecting cancer using mutations and expressions of the AQP and a DNA chip possessing oligonucleotides of mutated AQP base sequence. In case of the present method for detecting cancer and DNA chip using the AQP's mutations and expressions, it is highly accurate, rapid and effective in cancer diagnosis.
    Type: Application
    Filed: June 4, 2007
    Publication date: December 18, 2008
    Inventors: Woo-chul Moon, Chul-so Moon, Young-ho Moon, Byung-gu Kim, Dong-hwan Kim, Chan-jae Shin, Tae-han Um, Hwa-su Kim, Mi-kyung Song, Hyeung-Jae Kim, Seok-beom Song
  • Publication number: 20050069872
    Abstract: The present invention relates to mutation genes of the AQP(aquaporin), a method for detecting cancer using mutations and expressions of the AQP and a DNA chip possessing oligonucleotides of mutated AQP base sequence. In case of the present method for detecting cancer and DNA chip using the AQP's mutations and expressions, it is highly accurate, rapid and effective in cancer diagnosis.
    Type: Application
    Filed: September 10, 2001
    Publication date: March 31, 2005
    Inventors: Woo-Chul Moon, Chul-so Moon, Young-ho Moon, Byung-gu Kim, Dong-hwan Kim, Chan-jae Shin, Tae-han Um, Hwa-su Kim, Mi-kyung Song, Hyeung-jae Kim, Seok-beom Song
  • Publication number: 20040185090
    Abstract: The present invention relates to cationic lipids, methods for preparing some and methods for effectively transporting anionic molecular substances into cell by using said cationic lipids. The present lipids are compatible to the gene therapy due to their stability and highly transporting effects.
    Type: Application
    Filed: August 14, 2003
    Publication date: September 23, 2004
    Inventors: Woo-chul Moon, Chul-so Moon, Byung-gu Kim, Chan-jae Shin, Hyeung-jae Kim, Young-ho Moon, Dong-hwan Kim, Tae-han Um, Hwa-su Kim, Mi-kyung Song, Seok-beom Song