Patents by Inventor Chul-Gu Lee

Chul-Gu 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: 20240088440
    Abstract: A lithium secondary battery includes a negative electrode, a positive electrode positioned opposite to the negative electrode, a separator disposed between the negative electrode and the positive electrode, and a non-aqueous electrolyte, wherein the negative electrode includes a silicon-based active material, the silicon-based active material comprises a compound represented by SiOx, wherein 0?x<2, the non-aqueous electrolyte includes a lithium salt, an organic solvent, and an additive, the additive includes a first additive and a second additive, the first additive includes a coumarin-based compound represented by Formula 1, and the second additive includes at least one of lithium fluoromalonato(difluoro)borate (LiFMDFB), lithium difluoro(oxalato)borate (LiDFOB), lithium difluorophosphate (LiDFP), or lithium difluorobis-(oxalate)phosphate (LiDFOP): wherein R and n are described herein.
    Type: Application
    Filed: August 17, 2023
    Publication date: March 14, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Yoon Gyo Cho, Chul Haeng Lee, Kyung Mi Lee, Jung Min Lee, Eun Bee Kim, Su Hyeon Ji, Chul Eun Yeom, Jung Gu Han
  • Patent number: 10030908
    Abstract: Disclosed herein is a natural gas liquefaction process using a single refrigeration cycle adopting a mixed refrigerant, and therefore having a simple structure and thus a compact system which is easy to operate, and further, after the mixed refrigerant is separated into two refrigerant parts, the two refrigerant parts are not mixed with each other but go through condensing (cooling), expanding, heat-exchanging, and compressing stages individually, and thus, optimal temperature and pressure conditions are applied to each of the separated refrigerant parts to increase efficiency of the liquefaction process.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: July 24, 2018
    Assignee: KOREA GAS CORPORATION
    Inventors: Sang Gyu Lee, Kun Hyung Choe, Young Myung Yang, Chul Gu Lee, Kyu Sang Cha, Chang Won Park, Sung Hee Choi, Yeong Beom Lee
  • Patent number: 9066618
    Abstract: A juice extracting apparatus of the present invention includes an extracting case having a juice outlet and a sludge outlet communicating an internal space thereof with an outside, an extracting screw unit positioned in the internal space of the extracting case, the extracting screw unit having a screw shaft connected to a drive shaft of a driving unit, a screw blade formed on an outer peripheral surface of the screw shaft and a sun gear mounted at the lower end of the screw shaft, a rotary extracting net unit in which the extracting screw unit is positioned, the rotary extracting net unit having a mesh net and a ring gear provided at its lower portion, and a discharge guide unit positioned at the lower portion of the rotary extracting net unit for guiding the sludge resulting from the extracting.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: June 30, 2015
    Assignee: TONGYANG MAGIC Inc.
    Inventors: Tae Gyu Lim, Chul Gu Lee, Kyoung Ho Lee, Dong Hoon Kang
  • Patent number: 8902210
    Abstract: An LCD device includes dual gate transistors provided to an output portion of the shift register for outputting a gate voltage. As such, the charge/discharge time of the output portion is reduced so the response time of liquid crystal is improved.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: December 2, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Kyo Ho Moon, Chul Gu Lee, Hoon Choi, Yong Soo Cho, Sang Kug Han
  • Patent number: 8879012
    Abstract: An array substrate for a liquid crystal display device and a fabrication method thereof, and a liquid crystal display device having the same are disclosed. The array substrate for a liquid crystal display device and a fabrication method thereof, and a liquid crystal display device having the same according to the present disclosure eliminate optical loss by use of a shielding film that can decrease the optic leakage current to minimize the optic leakage loss, thus it is possible to improve the picture quality.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: November 4, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Kyo Ho Moon, Chul Gu Lee, Seong Woo Jeong, Jeong Yeon Kim, Ji Suk Kim, Hoon Choi, Sang Moo Park, Sang Kug Han
  • Publication number: 20130263623
    Abstract: Disclosed herein is a natural gas liquefaction process of pre-cooling natural gas using a closed loop pre-cooling cycle and liquefying the pre-cooled natural gas using a closed loop liquefying cycle, wherein the closed loop pre-cooling cycle includes first and second pre-cooling cycles in parallel for pre-cooling supplied natural gases together in the same first heat exchange region through the respective pure refrigerants, and the closed loop liquefying cycle includes at least one liquefying cycle for liquefying the pre-cooled natural gas through a mixed refrigerant, the first and second pre-cooling cycles being a closed circuit cooling cycle.
    Type: Application
    Filed: October 25, 2011
    Publication date: October 10, 2013
    Applicant: KOREA GAS CORPORATION
    Inventors: Sang Gyu Lee, Kun Hyung Choe, Kyu Sang Cha, Chang Won Park, Yeong Beom Lee, Yong Bum Cho, Chul Gu Lee, Ho-Myung Chang
  • Publication number: 20130133362
    Abstract: Disclosed herein is a natural gas liquefaction process using a single refrigeration cycle adopting a mixed refrigerant, and therefore having a simple structure and thus a compact system which is easy to operate, and further, after the mixed refrigerant is separated into two refrigerant parts, the two refrigerant parts are not mixed with each other but go through condensing (cooling), expanding, heat-exchanging, and compressing stages individually, and thus, optimal temperature and pressure conditions are applied to each of the separated refrigerant parts to increase efficiency of the liquefaction process.
    Type: Application
    Filed: August 11, 2011
    Publication date: May 30, 2013
    Inventors: Sang Gyu Lee, Kun Hyung Choe, Young Myung Yang, Chul Gu Lee, Kyu Sang Cha, Chang Won Park, Sung Hee Choi, Yeong Beom Lee
  • Publication number: 20120227592
    Abstract: A juice extracting apparatus, which can improve juice extracting efficiency without increasing a number of revolutions of a driving means, is disclosed. A juice extracting apparatus, which can easily clean components including an extracting net unit, while minimizing sludge stuck in or sticking on a component, is also disclosed.
    Type: Application
    Filed: March 5, 2012
    Publication date: September 13, 2012
    Applicant: Tong Yang Inc.
    Inventors: Tae Gyu Lim, Chul Gu Lee, Kyoung Ho Lee, Dong Hoon Kang
  • Patent number: 8106864
    Abstract: An LCD device is disclosed. The LCD device includes dual gate transistors provided to an output portion for outputting a gate voltage. As such, the charge/discharge time of the output portion is reduced so the response time of liquid crystal is improved.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: January 31, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Kyo Ho Moon, Chul Gu Lee, Hoon Choi, Yong Soo Cho, Sang Kug Han
  • Publication number: 20100302230
    Abstract: An LCD device includes dual gate transistors provided to an output portion of the shift register for outputting a gate voltage. As such, the charge/discharge time of the output portion is reduced so the response time of liquid crystal is improved.
    Type: Application
    Filed: August 9, 2010
    Publication date: December 2, 2010
    Inventors: Kyo Ho Moon, Chul Gu Lee, Hoon Choi, Yong Soo Cho, Sang Kug Han
  • Publication number: 20100231492
    Abstract: An LCD device is disclosed. The LCD device includes dual gate transistors provided to an output portion for outputting a gate voltage. As such, the charge/discharge time of the output portion is reduced so the response time of liquid crystal is improved.
    Type: Application
    Filed: September 9, 2009
    Publication date: September 16, 2010
    Inventors: Kyo Ho Moon, Chul Gu Lee, Hoon Choi, Yong Soo Cho, Sang Kug Han
  • Publication number: 20100091212
    Abstract: An array substrate for a liquid crystal display device and a fabrication method thereof, and a liquid crystal display device having the same are disclosed. The array substrate for a liquid crystal display device and a fabrication method thereof, and a liquid crystal display device having the same according to the present disclosure eliminate optical loss by use of a shielding film that can decrease the optic leakage current to minimize the optic leakage loss, thus it is possible to improve the picture quality.
    Type: Application
    Filed: September 17, 2009
    Publication date: April 15, 2010
    Inventors: Kyo Ho MOON, Chul Gu LEE, Seong Woo JEONG, Jeong Yeon KIM, Ji Suk KIM, Hoon CHOI, Sang Moo PARK, Sang Kug HAN
  • Patent number: 7453545
    Abstract: In a liquid crystal display panel, by controlling the number or a size of a support member added to a seal pattern for attaching two substrate of a liquid crystal display panel to each other, in case that the seal pattern is formed at an upper surface of a black matrix or of an over-coast layer formed of an organic film material, outer air is prevented from flowing into an image display part, and the seal pattern is prevented from being broken, so that it may be minimized that a deficiency occurs in the liquid crystal display panel.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: November 18, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Bong-Chul Kim, Myung-Woo Nam, Kyung-Kyu Kang, Chul-Gu Lee, Gweon-Young Park, Chang-Ho Oh, Yun-Rak Lee
  • Publication number: 20050001969
    Abstract: In a liquid crystal display panel, by controlling the number or a size of a support member added to a seal pattern for attaching two substrate of a liquid crystal display panel to each other, in case that the seal pattern is formed at an upper surface of a black matrix or of an over-coast layer formed of an organic film material, outer air is prevented from flowing into an image display part, and the seal pattern is prevented from being broken, so that it may be minimized that a deficiency occurs in the liquid crystal display panel.
    Type: Application
    Filed: April 7, 2004
    Publication date: January 6, 2005
    Inventors: Bong-Chul Kim, Myung-Woo Nam, Kyung-Kyu Kang, Chul-Gu Lee, Gweon-Young Park, Chang-Ho Oh, Yun-Rak Lee