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: 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