Patents by Inventor Yu-Hyoung LEE

Yu-Hyoung LEE 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: 20200127363
    Abstract: A double loop antenna includes a source loop comprising: a spiral-shaped conductive source coil pattern disposed on a top surface of a board, and a source capacitor pattern comprising symmetrical conductive patterns disposed on the top surface and a bottom surface of the board; and a resonance loop comprising: a spiral-shaped conductive resonance coil pattern disposed on the bottom surface of the board, and a resonance capacitor pattern comprising symmetrical conductive patterns disposed on the top surface and the bottom surface of the board, wherein the source coil pattern and the resonance coil pattern are formed on different surfaces of the board.
    Type: Application
    Filed: December 20, 2019
    Publication date: April 23, 2020
    Applicant: WITS Co., Ltd.
    Inventors: Sang Beom LEE, Hyung Wook Cho, Jun Seung Yi, Yu Jin Lee, Jae Suk Sung, Dae Ki Lim, Seung Hun Ryu, Ki Won Chang, Jae Hyoung Cho, Si Hyung Kim
  • Patent number: 10564375
    Abstract: An optical and electrical composite multimedia cable including: an optical unit including a plurality of optical fibers and an optical-fiber protective layer, the optical-fiber protective layer formed by filling gaps between the optical fibers with curable resin and covering outer sides of the optical fibers with the curable resin and then curing the curable resin; a plurality of conductor units each including a conductor and an insulator covering the conductor; and an outer jacket provided around the optical unit and the conductor units.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: February 18, 2020
    Assignee: LS CABLE & SYSTEM LTD.
    Inventors: Man-Su Lee, Yu-Hyoung Lee, Young-Ho Jun, Tae-Kyung Yook
  • Patent number: 10547098
    Abstract: A double loop antenna includes a source loop comprising: a spiral-shaped conductive source coil pattern disposed on a top surface of a board, and a source capacitor pattern comprising symmetrical conductive patterns disposed on the top surface and a bottom surface of the board; and a resonance loop comprising: a spiral-shaped conductive resonance coil pattern disposed on the bottom surface of the board, and a resonance capacitor pattern comprising symmetrical conductive patterns disposed on the top surface and the bottom surface of the board, wherein the source coil pattern and the resonance coil pattern are formed on different surfaces of the board.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: January 28, 2020
    Assignee: WITS Co., Ltd.
    Inventors: Sang Beom Lee, Hyung Wook Cho, Jun Seung Yi, Yu Jin Lee, Jae Suk Sung, Dae Ki Lim, Seung Hun Ryu, Ki Won Chang, Jae Hyoung Cho, Si Hyung Kim
  • Patent number: 10469133
    Abstract: An antenna device includes a first wiring may include a spiral shape forming an empty region therein, and a second wiring disposed inside or outside of the first wiring. The second wiring is disposed to be spaced apart from the first wiring, and includes a first ring-shaped wiring and a second ring-shaped wiring, which are concentric to each other.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: November 5, 2019
    Assignee: WITS Co., Ltd.
    Inventors: Dae Ung Ahn, Hyung Wook Cho, Jun Seung Yi, Yu Jin Lee, Seung Hun Ryu, Sang Beom Lee, Dae Ki Lim, Jae Hyoung Cho, Si Hyung Kim
  • Patent number: 10428055
    Abstract: The present invention relates to a substituted piperidines represented by following Chemical Formula 1, which have a GPR119 agonistic activity, a method for preparing the same, and a pharmaceutical composition including the same: wherein A, B, and X are defined therein.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: October 1, 2019
    Assignee: DONG-A ST CO., LTD.
    Inventors: Jae Sung Yang, Gye Rim Baek, Yoon Jung Kim, Chi Young Ahn, Jae Young Lee, Il Hoon Jung, Mi Kyung Kim, So Mi Kang, Hyo Ju Lee, Yu Na Chae, Ye Hwang Cheong, Tae Hyoung Kim, Eun Kyoung Yang, Moon Ho Son, Chang Yell Shin
  • Publication number: 20180224617
    Abstract: An optical and electrical composite multimedia cable including: an optical unit including a plurality of optical fibers and an optical-fiber protective layer, the optical-fiber protective layer formed by filling gaps between the optical fibers with curable resin and covering outer sides of the optical fibers with the curable resin and then curing the curable resin; a plurality of conductor units each including a conductor and an insulator covering the conductor; and an outer jacket provided around the optical unit and the conductor units.
    Type: Application
    Filed: June 11, 2015
    Publication date: August 9, 2018
    Applicant: LS Cable & System LTD.
    Inventors: Man-Su LEE, Yu-Hyoung LEE, Young-Ho JUN, Tae-Kyung YOOK
  • Patent number: 8909015
    Abstract: Disclosed is a composition for a high strength loose tube type fiber optic cable with excellent flexibility and excellent impact resistance, which includes a polypropylene-polyethylene copolymer having a melt flow index (MFI) of 1.1 g/10 minutes to 3.0 g/10 minutes at 230° C. and a flexural modulus of 10,000 to 23,000 kg/cm2. A fiber optic cable including a loose tube formed with the composition for a high strength loose tube type fiber optic cable has excellent flexibility and impact resistance as well as excellent appearance.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: December 9, 2014
    Assignee: LS Cable & System Ltd.
    Inventors: Jeong-Eun Lim, Yu-Hyoung Lee, Gi-Joon Nam
  • Publication number: 20140023331
    Abstract: Disclosed is a composition for a high strength loose tube type fiber optic cable with excellent flexibility and excellent impact resistance, which includes a polypropylene-polyethylene copolymer having a melt flow index (MFI) of 1.1 g/10 minutes to 3.0 g/10 minutes at 230° C. and a flexural modulus of 10,000 to 23,000 kg/cm2. A fiber optic cable including a loose tube formed with the composition for a high strength loose tube type fiber optic cable has excellent flexibility and impact resistance as well as excellent appearance.
    Type: Application
    Filed: July 18, 2012
    Publication date: January 23, 2014
    Applicant: LS Cable & System Ltd.
    Inventors: Jeong-Eun LIM, Yu-Hyoung LEE, Gi-Joon NAM