Patents by Inventor Dae Sung Oh

Dae Sung Oh 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: 11830979
    Abstract: The electrolyte for a lithium secondary battery comprises: a lithium salt; a solvent; and a functional additive, wherein the functional additive comprises naphthalen-1-yl sulfurofluoridate, represented by the following formula 1:
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: November 28, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Yoon Sung Lee, Ik Kyu Kim, Seung Min Oh, Sung Ho Ban, Sang Mok Park, Ko Eun Kim, Sang Kyu Kwak, Nam Soon Choi, Hyeon Gyu Moon, Seo Young Jeong, Sung You Hong, Dae Yeon Hwang
  • Patent number: 11793070
    Abstract: Provided is a novel compound capable of improving the luminous efficiency, stability and life span of a device, an organic electric element using the same, and an electronic device thereof.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: October 17, 2023
    Assignee: DUK SAN NEOLUX CO., LTD.
    Inventors: Yun Suk Lee, Sun Hee Lee, Ki Ho So, Dae Hwan Oh, Hyoung Keun Park, Hye Min Cho, Jong Gwang Park, Ga Eun Lee, Yeon Seok Jeong, Dae Sung Kim, Seong Je Park
  • Publication number: 20230301180
    Abstract: Embodiments of the present invention relate to: an organic material for an organic electric element, which can improve the driving voltage, luminous efficiency, and service life characteristics of the organic electric element; a method for producing the organic material for an organic electric element; and an organic electric element using same.
    Type: Application
    Filed: July 5, 2021
    Publication date: September 21, 2023
    Inventors: Dae Ho SONG, Jong Gwang PARK, Bum Sung LEE, Jung Hwan PARK, Soung Yun MUN, Yun Suk LEE, Sun Pil HWANG, Joon Seok OH
  • Publication number: 20230290942
    Abstract: A positive electrode active material and a method of making the same are disclosed herein. In some embodiments, a method includes mixing transition metal raw powders including a nickel raw powder to prepare a first mixture, where the first mixture has a molar ratio of lithium to total transition metals of 0.95 to 1.02, and where a molar ratio of nickel to total transition metals is 80 mol % or more, sintering the first mixture in an oxygen-containing atmosphere, and cooling the sintered first mixture to obtain a first sintered product, mixing the first sintered product with a second lithium raw material to prepare a second mixture, where the second mixture has molar ratio of lithium to total transition metals of 1.00 to 1.09, and sintering the second mixture in the oxygen-containing atmosphere to prepare a lithium composite transition metal oxide in the form of a single particle.
    Type: Application
    Filed: September 24, 2021
    Publication date: September 14, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Ho-Young Kwak, Dae-Sung Kim, Jun-Gyu Kim, Jae-Young Moon, Myoung-Hwan Oh
  • Patent number: 11742521
    Abstract: The electrolyte solution for a lithium secondary battery includes: a lithium salt; a solvent; and an anode additive including 5-(4-cyanophenyl)-1-(4-fluorobenzyl)-1H-1,2,3-triazole-4-carbonitrile represented by Chemical Formula 1 below:
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: August 29, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Yoon Sung Lee, Seung Min Oh, Sung Ho Ban, Ko Eun Kim, Jun Ki Rhee, Woo Young Jin, Sang Kyu Kwak, Nam Soon Choi, Sung You Hong, Woo Gyum Kim, Dae Yeon Hwang, Hyeon Gyu Moon
  • Publication number: 20230261184
    Abstract: A positive electrode active material and a method for manufacturing the same are disclosed herein. In some embodiments, a method includes mixing and grinding raw material particles to obtain ground product particles, where the raw material particles are source materials for a lithium composite transition metal oxide, sintering the ground product particles to synthesize the lithium composite transition metal oxide, and disaggregating and classifying the synthesized lithium composite transition metal oxide to obtain a positive electrode active material powder, wherein the mixing and grinding the raw materials includes placing the raw materials and beads in a chamber of a grinding device, where the grinding device includes a rotatable rotor in the chamber, and performing a dry process of mixing and grinding the raw material particles in the chamber by rotating the rotor to give kinetic energy to the beads, causing collisions between the beads and the raw material particles.
    Type: Application
    Filed: September 23, 2021
    Publication date: August 17, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Dae-Sung Kim, Ho-Young Kwak, Jun-Gyu Kim, Jae-Young Moon, Myoung-Hwan Oh
  • Patent number: 11670801
    Abstract: The electrolyte solution for a lithium secondary battery includes: a lithium salt; a solvent; and an anode additive including 1-benzyl-5-(4-nitrophenyl)-1H-1,2,3-triazole-4-carbonitrile represented by Chemical Formula 1 below:
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: June 6, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Yoon Sung Lee, Ko Eun Kim, Sung Ho Ban, Seung Min Oh, Ik Kyu Kim, Sang Kyu Kwak, Nam Soon Choi, Sung You Hong, Dae Yeon Hwang, Seo Young Jeong, Hyeon Gyu Moon
  • Patent number: 11326030
    Abstract: Disclosed herein are a polyamide-imide film which is transparent and exhibits superior mechanical properties such as surface hardness, etc. and a method of preparing the same. The polyamide-imide film a copolymer of an aromatic diamine, an aromatic dianhydride, and an aromatic dicarbonyl compound, wherein the aromatic diamine and the aromatic dianhydride forms an imide unit; the aromatic diamine and the aromatic dicarbonyl compound forms an amide unit; and the amide unit accounts for 50-70 mol % of 100 mol % of the units of the copolymer, thereby exhibiting transparency and superior mechanical properties including surface hardness.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: May 10, 2022
    Assignee: SKC CO., LTD.
    Inventors: Jin Woo Lee, Dong Jin Lim, Jae In Ahn, Jong Ho Lee, Sang Il Kim, Sun Hwan Kim, Dae Sung Oh, Dawoo Jeong
  • Publication number: 20200339769
    Abstract: Disclosed herein are a polyamide-imide film which is transparent and exhibits superior mechanical properties such as surface hardness, etc. and a method of preparing the same. The polyamide-imide film a copolymer of an aromatic diamine, an aromatic dianhydride, and an aromatic dicarbonyl compound, wherein the aromatic diamine and the aromatic dianhydride forms an imide unit; the aromatic diamine and the aromatic dicarbonyl compound forms an amide unit; and the amide unit accounts for 50-70 mol % of 100 mol % of the units of the copolymer, thereby exhibiting transparency and superior mechanical properties including surface hardness.
    Type: Application
    Filed: April 11, 2017
    Publication date: October 29, 2020
    Inventors: Jin Woo LEE, Dong Jin LIM, Jae In AHN, Jong Ho LEE, Sang Il KIM, Sun Hwan KIM, Dae Sung OH, Dawoo JEONG
  • Patent number: 8953307
    Abstract: A display device is provided. The display device includes a front panel forming a front exterior of the display device and transmitting images therethrough, a back cover forming a rear exterior of the display device and comprising an edge portion making contact with a backside of the front panel, and a display module accommodated in a space formed by the front panel and the back cover.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: February 10, 2015
    Assignee: LG Electronics Inc.
    Inventor: Dae-Sung Oh
  • Publication number: 20110199725
    Abstract: A display device is provided. The display device includes a front panel forming a front exterior of the display device and transmitting images therethrough, a back cover forming a rear exterior of the display device and comprising an edge portion making contact with a backside of the front panel, and a display module accommodated in a space formed by the front panel and the back cover.
    Type: Application
    Filed: December 24, 2008
    Publication date: August 18, 2011
    Inventor: Dae-Sung Oh
  • Patent number: 7703736
    Abstract: A stand for an image display device is provided. The stand includes a leg unit. In the leg unit, a supporting member supports the image display device, a connecting member is coupled to the supporting member and rotatable in forward and backward directions with respect to the supporting member, and a base member supports the image display device with respect to a floor. The base member is rotatable in a direction different from the rotation directions of the connection member for being folded to a back of the image display device.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: April 27, 2010
    Assignee: LG Electronics Inc.
    Inventor: Dae Sung Oh