Patents by Inventor Dae-Uk KIM

Dae-Uk 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).

  • Publication number: 20250062491
    Abstract: A battery sub-packing unit includes a plurality of secondary battery cells, a cell support member including a seating portion for accommodating the plurality of secondary battery cells, and a venting inducing portion connecting the seating portion to an external area, and a case member provided to surround the secondary battery cell accommodated in the seating portion and to seal around the secondary battery cell.
    Type: Application
    Filed: November 4, 2024
    Publication date: February 20, 2025
    Inventors: Suk Chul KIM, Dae Won KWON, Yong Uk KIM, Jong Ho SEOK
  • Patent number: 12084736
    Abstract: A manufacturing method of a grain-oriented electrical steel sheet according to an embodiment of the present invention includes: manufacturing a cold-rolled sheet; forming a groove in the cold-rolled sheet; removing an Fe—O oxide formed on a surface of the cold-rolled sheet; primary recrystallization annealing the cold-rolled sheet; and applying an annealing separating agent to the primary recrystallized cold-rolled sheet, and secondary recrystallization annealing it, wherein a close contacting property coefficient calculated by Formula 1 below is 0.016 to 1.13. close contacting property coefficient (Sad)=(0.8×R)/Hhill-up??[Formula 1] (In Formula 1, R represents the average roughness (?m) of the surface of the cold-rolled sheet after the removing of the oxide, and Hhill-up represents the average height (?m) of the hill-up present on the surface of the cold-rolled sheet after the removing of the oxide.).
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: September 10, 2024
    Assignee: POSCO CO., LTD
    Inventors: Oh-Yeoul Kwon, Woo-Sin Kim, Dae-Uk Kim, Jong-Tae Park
  • Publication number: 20240105993
    Abstract: There is provided an additive for secondary battery electrolyte, containing aluminum silicate. The aluminum silicate has a particle size of 200 nm to 20 ?m. The aluminum silicate has a mass ratio of 60 to 70 wt % of oxygen (O), 0.1 to 2.0 wt % of aluminum (Al), and 25 to 35 wt % of silicon (Si). The aluminum silicate has a surface area of 50 to 1,000 m2/g. The aluminum silicate has a pore size of 0.1 to 20 nm.
    Type: Application
    Filed: February 15, 2022
    Publication date: March 28, 2024
    Applicant: GIANT CHEMICAL CO., LTD
    Inventors: Dong Min SEONG, Dong Hyun KIM, Dong Gyun KANG, Dae Uk KIM, Jin Kyu KANG, Seung Yun HAN
  • Publication number: 20240105994
    Abstract: There is provided an additive, containing magnesium silicate, for a secondary battery electrolyte and a preparation method therefor. The magnesium silicate has a mass ratio of 50 to 70 wt % of oxygen (O), 5 to 20 wt % of magnesium (Al), and 15 to 35 wt % of silicon (Si). The magnesium silicate has a surface area of 50 to 500 m2/g. The magnesium silicate has a pore size of 0.1 to 20 nm.
    Type: Application
    Filed: February 15, 2022
    Publication date: March 28, 2024
    Applicant: GIANT CHEMICAL CO., LTD
    Inventors: Dong Min SEONG, Dong Hyun KIM, Dong Gyun KANG, Dae Uk KIM, Jin Kyu KANG, Seung Yun HAN
  • Publication number: 20230060105
    Abstract: A grain-oriented electrical steel sheet according to an embodiment of the present invention has an average degree of orientation difference of 0.5 to 10° between recrystallized grains that are in contact with a groove present on the surface of the electrical steel sheet and the bottom of the groove, and other recrystallized grains.
    Type: Application
    Filed: December 18, 2020
    Publication date: February 23, 2023
    Applicant: POSCO
    Inventors: Oh-Yeoul Kwon, Woo-Sin Kim, Dae-Uk Kim, Jong-Tae Park
  • Publication number: 20220042124
    Abstract: A manufacturing method of a grain-oriented electrical steel sheet according to an embodiment of the present invention includes: manufacturing a cold-rolled sheet; forming a groove in the cold-rolled sheet; removing an Fe—O oxide formed on a surface of the cold-rolled sheet; primary recrystallization annealing the cold-rolled sheet; and applying an annealing separating agent to the primary recrystallized cold-rolled sheet, and secondary recrystallization annealing it, wherein a close contacting property coefficient calculated by Formula 1 below is 0.016 to 1.13. close contacting property coefficient (Sad)=(0.8×R)/Hhill-up??[Formula 1] (In Formula 1, R represents the average roughness (?m) of the surface of the cold-rolled sheet after the removing of the oxide, and Hhill-up represents the average height (?m) of the hill-up present on the surface of the cold-rolled sheet after the removing of the oxide.
    Type: Application
    Filed: December 18, 2019
    Publication date: February 10, 2022
    Inventors: Oh-Yeoul Kwon, Woo-Sin Kim, Dae-Uk Kim, Jon-Tae Park
  • Publication number: 20200354817
    Abstract: An aluminum alloy, comprising: 4.0 to 10.0 weight % silicon (Si), 0.1 to 4.0 weight % magnesium (Mg), 0.1 to 1.0 weight % chromium (Cr), 0.05 to 1.0 weight % zinc (Zn), 0.05 to 1.0 weight % manganese (Mn), 0.01 to 1.0 weight % titanium (Ti), 0.001 to 0.5 weight % tin (Sn), and 81.5 to 95.689 weight % aluminum and at least one impurity.
    Type: Application
    Filed: July 24, 2020
    Publication date: November 12, 2020
    Inventors: Yong-Wook HWANG, Dae-Uk KIM, Sung-Guk KIM, Bong-Gi LEE, Jung-Mok LEE, Il HUH
  • Patent number: 10233088
    Abstract: A coating agent for an electrical steel sheet and a manufacturing method therefor are disclosed. A coating agent for an electrical steel sheet according to an example embodiment of the present invention includes a metal phosphate derivative solution, colloid silica, chromium oxide, and solid silica, and a solvent, wherein the metal phosphate derivative is a single material of a magnesium phosphate derivative or a mixed material of an aluminum phosphate derivative and a magnesium phosphate derivative, and in the mixed material, an amount of aluminum phosphate derivative is 10 wt % or less (not including 0%).
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: March 19, 2019
    Assignee: POSCO
    Inventors: Min Soo Han, Chang Soo Park, Dae-Uk Kim, Ho-Kyung Shim, Soon-Bok Park
  • Publication number: 20160322138
    Abstract: A coating agent for an electrical steel sheet and a manufacturing method therefor are disclosed. A coating agent for an electrical steel sheet according to an example embodiment of the present invention includes a metal phosphate derivative solution, colloid silica, chromium oxide, and solid silica, and a solvent, wherein the metal phosphate derivative is a single material of a magnesium phosphate derivative or a mixed material of an aluminum phosphate derivative and a magnesium phosphate derivative, and in the mixed material, an amount of aluminum phosphate derivative is 10 wt % or less (not including 0%).
    Type: Application
    Filed: December 17, 2014
    Publication date: November 3, 2016
    Inventors: Min Soo HAN, Chang Soo PARK, Dae-Uk KIM, Ho-Kyung SHIM, Soon-Bok PARK
  • Publication number: 20160060731
    Abstract: An aluminum alloy, comprising: 4.0 to 10.0 weight % silicon (Si), 0.1 to 4.0 weight % magnesium (Mg), 0.1 to 1.0 weight % chromium (Cr), 0.05 to 1.0 weight % zinc (Zn), 0.05 to 1.0 weight % manganese (Mn), 0.01 to 1.0 weight % titanium (Ti), 0.001 to 0.5 weight % tin (Sn), and 81.5 to 95.689 weight % aluminum and at least one impurity.
    Type: Application
    Filed: September 1, 2015
    Publication date: March 3, 2016
    Inventors: Yong-Wook HWANG, Dae-Uk KIM, Sung-Guk KIM, Bong-Gi LEE, Jung-Mok LEE, Il HUH