Patents by Inventor Chun-Sik Byun

Chun-Sik Byun 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: 11961441
    Abstract: A display device includes a display panel having flexibility, a storage connected to a first end of the display panel and accommodating the display panel so that the display panel is inserted and withdrawn, an extension part connected to a second end of the display panel, which is opposite to the first end of the display panel, and facing one side of the storage in a first direction, and a display driving integrated circuit which receives image data and a control signal from a host and provides a data signal to the display panel. The display driving integrated circuit includes a data processor which receives a smart size change signal from the host and sets a non-active area of the display panel based on the smart size change signal.
    Type: Grant
    Filed: October 21, 2022
    Date of Patent: April 16, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joo Hyung Lee, Chun Sik Byun, Ho Seok Han
  • Publication number: 20230186811
    Abstract: A display device includes a display panel having flexibility, a storage connected to a first end of the display panel and accommodating the display panel so that the display panel is inserted and withdrawn, an extension part connected to a second end of the display panel, which is opposite to the first end of the display panel, and facing one side of the storage in a first direction, and a display driving integrated circuit which receives image data and a control signal from a host and provides a data signal to the display panel. The display driving integrated circuit includes a data processor which receives a smart size change signal from the host and sets a non-active area of the display panel based on the smart size change signal.
    Type: Application
    Filed: October 21, 2022
    Publication date: June 15, 2023
    Inventors: Joo Hyung LEE, Chun Sik BYUN, Ho Seok HAN
  • Patent number: 9725560
    Abstract: The present invention relates to a catalyst for reductive amination-reaction, and uses thereof. The catalyst according to the present invention can show a high amine conversion rate because it can maintain catalytic activity even in the presence of moisture particularly while basically maintaining the balance of dehydrogenation and hydrogenation reactions. Accordingly, the catalyst can be usefully used for preparing a polyetheramine compound through a reductive amination-reaction not only in a continuous preparation process but also in a batch preparation process, irrespective of the existence of moisture.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: August 8, 2017
    Assignee: LOTTE CHEMICAL CORPORATION
    Inventors: Kyung Jun Kim, Chun-Sik Byun, Jin Kyu Lee, Jong Cheol Yoo, Young Jong Seo
  • Publication number: 20160096922
    Abstract: The present invention relates to a catalyst for reductive amination-reaction, and uses thereof. The catalyst according to the present invention can show a high amine conversion rate because it can maintain catalytic activity even in the presence of moisture particularly while basically maintaining the balance of dehydrogenation and hydrogenation reactions. Accordingly, the catalyst can be usefully used for preparing a polyetheramine compound through a reductive amination-reaction not only in a continuous preparation process but also in a batch preparation process, irrespective of the existence of moisture.
    Type: Application
    Filed: May 12, 2014
    Publication date: April 7, 2016
    Inventors: Kyung Jun KIM, Chun-Sik BYUN, Jin Kyu LEE, Jong Cheol YOO, Young Jong SEO
  • Patent number: 8895784
    Abstract: The present invention relates to a catalyst for reductive amination-reaction, and uses thereof. The catalyst according to the present invention can show high amine conversion rate because it can maintain the catalytic activity even in the presence of moisture especially while maintaining the balance of dehydrogenation and hydrogenation reaction basically. Accordingly, the catalyst can be usefully used for preparing a polyetheramine compound through reductive amination-reaction not only in a continuous preparation process but also in a batch preparation process, irrespective of the existence of moisture.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: November 25, 2014
    Assignee: Lotte Chemical Corporation
    Inventors: Kyung-Jun Kim, Chun-Sik Byun, Jin-Heung Kim, Hui-Chan Kim, Young-Jong Seo
  • Publication number: 20140179952
    Abstract: The present invention relates to a catalyst for reductive amination-reaction, and uses thereof. The catalyst according to the present invention can show high amine conversion rate because it can maintain the catalytic activity even in the presence of moisture especially while maintaining the balance of dehydrogenation and hydrogenation reaction basically. Accordingly, the catalyst can be usefully used for preparing a polyetheramine compound through reductive amination-reaction not only in a continuous preparation process but also in a batch preparation process, irrespective of the existence of moisture.
    Type: Application
    Filed: May 9, 2013
    Publication date: June 26, 2014
    Applicant: Lotte Chemical Corporation
    Inventors: Kyung-Jun Kim, Chun-Sik Byun, Jin-Heung Kim, Hui-Chan Kim, Young-Jong Seo