Patents by Inventor Seung-bae Ji

Seung-bae Ji 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: 11990099
    Abstract: Provided a source driver integrated circuit (IC) and a display driving device eliminating an existing input pad and internal wiring of a source driver integrated circuit (IC) for receiving a sensing reference voltage from an external voltage source by allowing the sensing reference voltage for initializing pixels during sensing of the pixels to be generated by an internal voltage source, rather than the external voltage source.
    Type: Grant
    Filed: June 16, 2023
    Date of Patent: May 21, 2024
    Assignee: LX SEMICON CO., LTD.
    Inventors: Seung Hwan Ji, Ho Sung Hong, Ye Ji Lee, Jung Bae Yun
  • Patent number: 11935472
    Abstract: The present disclosure relates to a pixel sensing circuit which extends an operation section of an integrator by using an additional signal and allows securing a time required for a stable output of a sensing voltage.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: March 19, 2024
    Assignee: LX SEMICON CO., LTD.
    Inventors: Seung Hwan Ji, Sang Min Lee, Gi Baek Choi, Jung Bae Yun
  • Patent number: 9133229
    Abstract: The present invention relates to an environmentally friendly, simple and economic process for producing xylose. The process comprises the steps of: a) countercurrently extracting tropical fruit biomass by hydrolysis with sulfuric acid to obtain a high-concentration xylose extract; b) adjusting the extract to a pH of 1.5-2.5 and decolorizing and filtering the pH-adjusted extract; c) desalting the filtrate in an electrodialysis device; and d) recycling a waste sulfuric acid solution recovered from step c), to step a), and concentrating and directly recovering the desalted filtrate to obtain xylose crystals.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: September 15, 2015
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Joo-hang Lee, Jun-gap An, Seung-won Park, Taek-beom Kim, Seong-bo Kim, Dong-hoon Lee, Woon-hwa Lee, Dae-Ho Son, Seung-bae Ji, Kang-pyo Lee
  • Patent number: 8283139
    Abstract: Disclosed is a method of producing xylitol using a hydrolysate containing xylose and arabinose prepared from byproducts of tropical fruit biomass and more precisely, a method of producing xylitol which includes the steps of producing xylose and arabinose by the pretreatment of tropical fruit biomass byproducts including coconut shell, palm shell and oil palm empty fruit bunch (OPEFB) via acid (0.2-5%) hydrolysis and an electrodialysis and an ionic purification; and producing xylitol with high yield based on repeated batch fermentation using a hydrolysate containing xylose and arabinose as a carbon source. In addition, the present invention relates to an active carbon produced by carbonization and activation of a hydrolysate remainder of a tropical fruit shell, the byproduct of xylose and arabinose production, at a certain temperature and a preparation method of the same.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: October 9, 2012
    Assignee: CJ Cheiljedang Corporation
    Inventors: Seung-won Park, Joo-hang Lee, Taek-beom Kim, Jung-hoon Kim, Seong-bo Kim, Sang-hoon Song, Kang-pyo Lee, Seung-bae Ji, Dong-hoon Lee, Kang-deug Lee
  • Publication number: 20120211366
    Abstract: The present invention relates to an environmentally friendly, simple and economic process for producing xylose. The process comprises the steps of: a) countercurrently extracting tropical fruit biomass by hydrolysis with sulfuric acid to obtain a high-concentration xylose extract; b) adjusting the extract to a pH of 1.5-2.5 and decolorizing and filtering the pH-adjusted extract; c) desalting the filtrate in an electrodialysis device; and d) recycling a waste sulfuric acid solution recovered from step c), to step a), and concentrating and directly recovering the desalted filtrate to obtain xylose crystals.
    Type: Application
    Filed: October 30, 2009
    Publication date: August 23, 2012
    Applicant: CJ Cheiljedang Corporation
    Inventors: Joo-hang Lee, Jun-gap An, Seung-won Park, Taek-beom Kim, Seong-bo Kim, Dong-hoon Lee, Woon-hwa Lee, Dae-Ho Son, Seung-bae Ji, Kang-pyo Lee
  • Publication number: 20100068121
    Abstract: Disclosed is a method of producing xylitol using a hydrolysate containing xylose and arabinose prepared from byproducts of tropical fruit biomass and more precisely, a method of producing xylitol which includes the steps of producing xylose and arabinose by the pretreatment of tropical fruit biomass byproducts including coconut shell, palm shell and oil palm empty fruit bunch (OPEFB) via acid (0.2-5%) hydrolysis and an electrodialysis and an ionic purification; and producing xylitol with high yield based on repeated batch fermentation using a hydrolysate containing xylose and arabinose as a carbon source. In addition, the present invention relates to an active carbon produced by carbonization and activation of a hydrolysate remainder of a tropical fruit shell, the byproduct of xylose and arabinose production, at a certain temperature and a preparation method of the same.
    Type: Application
    Filed: January 25, 2008
    Publication date: March 18, 2010
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Seung-won Park, Joo-hang Lee, Taek-beom Kim, Jung-hoon Kim, Seong-bo Kim, Sang-hoon Song, Kang-pyo Lee, Seung-bae Ji, Dong-hoon Lee, Kang-deug Lee