Patents by Inventor Hae-dong SEO

Hae-dong SEO 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: 20240194153
    Abstract: A scan driving circuit includes: a driving circuit configured to output a scan signal to an output terminal in response to clock signals and a carry signal; and a masking circuit configured to stop the driving circuit from outputting the scan signal in response to a masking signal and a signal indicating an operating state of the driving circuit.
    Type: Application
    Filed: February 23, 2024
    Publication date: June 13, 2024
    Inventors: TAEHOON KIM, JOON-CHUL GOH, SOON-DONG KIM, HAE-KWAN SEO
  • Patent number: 11915658
    Abstract: A scan driving circuit includes: a driving circuit configured to output a scan signal to an output terminal in response to clock signals and a carry signal; and a masking circuit configured to stop the driving circuit from outputting the scan signal in response to a masking signal and a signal indicating an operating state of the driving circuit.
    Type: Grant
    Filed: March 6, 2023
    Date of Patent: February 27, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Taehoon Kim, Joon-Chul Goh, Soon-Dong Kim, Hae-Kwan Seo
  • Publication number: 20220144752
    Abstract: Provided are a water-soluble naphthoquinone derivative composition and a method for preparing the same, a water-soluble composition for controlling harmful algae, a method of controlling large-scale harmful algae, and an automated system for artificial intelligence monitoring, removal, and prevention of large-scale harmful algae. According to one embodiment, a method of preparing a water-soluble naphthoquinone derivative composition includes reacting a 1,4-naphthoquinone compound with N,N-diethylethylenediamine to obtain an intermediate product of [Chemical Formula 2]; and reacting an intermediate product of [Chemical Formula 2] with hydrochloric acid to obtain a compound of [Chemical Formula 1]. In addition, the water-soluble naphthoquinone derivative composition represented by the following [Chemical Formula 1] is proposed.
    Type: Application
    Filed: January 22, 2020
    Publication date: May 12, 2022
    Inventors: Hae-dong SEO, Myung-soo HAN