Patents by Inventor Seong Taek Jeong

Seong Taek Jeong 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: 11921309
    Abstract: A polarizing plate and an optical display including the same are provided. A polarizing plate includes: a polarizer; and a first protective layer and a second protective layer sequentially stacked on a surface of the polarizer, and the second protective layer includes a positive C retardation layer, the positive C retardation layer having a thickness of about 10 ?m or less, an index of refraction of about 1.50 to about 1.55, and a glass transition temperature (Tg) of about 150° C. to about 250° C.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: March 5, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventors: A Ra Jo, Beom Deok Lee, Seon Gyeong Jeong, Seong Hoon Lee, Seung Mi Shin, Wan Taek Hong
  • Patent number: 7862257
    Abstract: A cable guide device for a manhole includes a wall supporting plate supported against a wall surface of an entrance part of the manhole, a cable guide body positioned at the bottom part of the wall supporting plate, a rotation shaft mounted vertically to the cable guide body and the wall supporting plate so that the cable guide body can be rotated from side to side with regard to the wall supporting plate, and at least one guide roller which rotates integrally with a roller shaft combined with the cable guide body so as to guide the cable into at least one underground pipe.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: January 4, 2011
    Assignee: KT Corporation
    Inventors: Seong Taek Jeong, Jin Woo Han, Byong Soo Woo
  • Patent number: 7475865
    Abstract: A machine of pulling out a cable from duct includes a main rotation jig connected to a hydraulic pressure motor and rotated contacting with the cable so as to pull out the cable, a winch rotated with the main rotation jig so as to stretch the pulled-out cable, a sub rotation jig mounted to be movable back and forth adjacent or separated from the main rotation jig and to be rotatable so as to stretch the cable between the main rotation jigs, and a table equipped with the main rotation jig, the winch and the sub rotation jig, and mounted vertical to the surface. The machine pulls out a cable in the fixed state to reduce the working area and labor force as well as to increase and control a traction power.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: January 13, 2009
    Assignee: KT Corporation
    Inventors: Seong Taek Jeong, Jin Woo Han, Hyoung Woo Kim, Yong Kun Noh, Wang Kyu Kang, Byong Soo Woo
  • Publication number: 20080111115
    Abstract: A machine of pulling out a cable from duct includes a main rotation jig connected to a hydraulic pressure motor and rotated contacting with the cable so as to pull out the cable, a winch rotated with the main rotation jig so as to stretch the pulled-out cable, a sub rotation jig mounted to be movable back and forth adjacent or separated from the main rotation jig and to be rotatable so as to stretch the cable between the main rotation jigs, and a table equipped with the main rotation jig, the winch and the sub rotation jig, and mounted vertical to the surface. The machine pulls out a cable in the fixed state to reduce the working area and labor force as well as to increase and control a traction power.
    Type: Application
    Filed: November 13, 2007
    Publication date: May 15, 2008
    Applicant: KT CORPORATION
    Inventors: SEONG TAEK JEONG, JIN WOO HAN, HYOUNG WOO KIM, YONG KUN NOH, WANG KYU KANG, BYONG SOO WOO
  • Publication number: 20080101869
    Abstract: Abstract of disclosureA cable guide device for a manhole includes a wall supporting plate supported against a wall surface of an entrance part of the manhole, a cable guide body positioned at the bottom part of the wall supporting plate, a rotation shaft mounted vertically to the cable guide body and the wall supporting plate so that the cable guide body can be rotated from side to side with regard to the wall supporting plate, and at least one guide roller which rotates integrally with a roller shaft combined with the cable guide body so as to guide the cable into at least one underground pipe.
    Type: Application
    Filed: October 26, 2007
    Publication date: May 1, 2008
    Applicant: KT CORPORATION
    Inventors: SEONG TAEK JEONG, JIN WOO HAN, BYONG SOO WOO