Patents by Inventor Nak Sung CHOI

Nak Sung CHOI 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: 11987781
    Abstract: The present invention relates to a gas collection device and is directed to a gas collection device for collecting a gas which is generated while microorganisms are cultured in a super absorbent polymer product. The gas collection device may comprise a constant temperature chamber having an interior that is configured to be maintained at a set temperature; a culture flask unit located inside the constant temperature chamber and configured to culture a bacteria therein; an adsorption unit located outside the constant temperature chamber and configured to receive a gas inside the culture flask unit; a pump unit connected to a rear end of the adsorption unit and configured to suck the gas inside the culture flask unit into the adsorption unit; and a mass flow controller located outside the constant temperature chamber and configured to control a flow rate of the gas sucked into the adsorption unit.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: May 21, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Eun Byeol Ko, Jung Hye Won, Nak Hee Choi, Ji Seok Lee, Eun Yeong Jin, Hae Sung Yun
  • Patent number: 11852930
    Abstract: A display device is provided. A display device includes a display panel including a plurality of connecting signal wires which supply different control voltages; a flexible printed circuit board attached to a side surface of the display panel and including a base film and a plurality of lead wires which are disposed on the base film; an anisotropic conductive film disposed between the plurality of connecting signal wires and the plurality of lead wires, and at least one bump wire disposed between adjacent connecting signal wires, the at least one bump wire being not supplied with the different control voltages controlling the display panel.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: December 26, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Hee Bae, Min Ho Kim, Kyung Ha Moon, Bum Suk Lee, Nak Sung Choi
  • Publication number: 20200400992
    Abstract: A display device is provided. A display device includes a display panel including a plurality of connecting signal wires which supply different control voltages; a flexible printed circuit board attached to a side surface of the display panel and including a base film and a plurality of lead wires which are disposed on the base film; an anisotropic conductive film disposed between the plurality of connecting signal wires and the plurality of lead wires, and at least one bump wire disposed between adjacent connecting signal wires, the at least one bump wire being not supplied with the different control voltages controlling the display panel.
    Type: Application
    Filed: June 17, 2020
    Publication date: December 24, 2020
    Inventors: Jin Hee BAE, Min Ho KIM, Kyung Ha MOON, Bum Suk LEE, Nak Sung CHOI