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).
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Patent number: 11894701Abstract: 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: GrantFiled: June 11, 2021Date of Patent: February 6, 2024Assignee: Samsung SDI Co., Ltd.Inventors: Takao Hidaka, Hwa-Su Kim
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Patent number: 11411255Abstract: 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: GrantFiled: September 15, 2017Date of Patent: August 9, 2022Assignee: Samsung SDI Co., Ltd.Inventors: Hwa-Su Kim, Thomas Trathnigg
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Patent number: 11327122Abstract: 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: GrantFiled: October 26, 2017Date of Patent: May 10, 2022Assignee: Samsung SDI Co., Ltd.Inventors: Hwa-Su Kim, Takao Hidaka, Cheolgi Son, Jiwon Jung, Wonkyoung Cho
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Publication number: 20210305817Abstract: 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: ApplicationFiled: June 11, 2021Publication date: September 30, 2021Inventors: Takao HIDAKA, Hwa-Su KIM
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Patent number: 11101668Abstract: 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: GrantFiled: March 5, 2019Date of Patent: August 24, 2021Assignee: Samsung SDI Co., Ltd.Inventors: Takao Hidaka, Hwa-Su Kim
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Patent number: 11050266Abstract: 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: GrantFiled: February 26, 2019Date of Patent: June 29, 2021Assignee: Samsung SDI Co., Ltd.Inventors: Takao Hidaka, Hwa-Su Kim
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Publication number: 20210119267Abstract: 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: ApplicationFiled: September 15, 2017Publication date: April 22, 2021Inventors: Hwa-Su KIM, Thomas TRATHNIGG
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Publication number: 20190339335Abstract: 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: ApplicationFiled: October 26, 2017Publication date: November 7, 2019Inventors: Hwa-Su KIM, Takao HIDAKA, Cheolgi SON, Jiwon JUNG, Wonkyoung CHO
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Publication number: 20190280489Abstract: 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: ApplicationFiled: March 5, 2019Publication date: September 12, 2019Inventors: Takao HIDAKA, Hwa-Su KIM
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Publication number: 20190267815Abstract: 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: ApplicationFiled: February 26, 2019Publication date: August 29, 2019Inventors: Takao Hidaka, Hwa-Su Kim
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Patent number: 10361573Abstract: 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: GrantFiled: August 13, 2015Date of Patent: July 23, 2019Assignee: 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
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Publication number: 20160172888Abstract: 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: ApplicationFiled: August 13, 2015Publication date: June 16, 2016Inventors: 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
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Patent number: 8012684Abstract: 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: GrantFiled: June 4, 2007Date of Patent: September 6, 2011Assignee: 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
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Patent number: 7550452Abstract: 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: GrantFiled: September 21, 2001Date of Patent: June 23, 2009Assignee: 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
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Patent number: 7470534Abstract: 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: GrantFiled: September 10, 2001Date of Patent: December 30, 2008Assignee: 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
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Publication number: 20080312094Abstract: 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: ApplicationFiled: June 4, 2007Publication date: December 18, 2008Inventors: 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
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Publication number: 20050069872Abstract: 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: ApplicationFiled: September 10, 2001Publication date: March 31, 2005Inventors: 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
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Publication number: 20040185090Abstract: 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: ApplicationFiled: August 14, 2003Publication date: September 23, 2004Inventors: 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