Patents by Inventor Ik Hwan Lee

Ik Hwan 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).

  • Patent number: 11992297
    Abstract: Provided is a method of monitoring a heart rate of an open circulatory system aquatic organism including water fleas, zebrafish, brine shrimp, and the method of evaluating individual response by real time measurement of a heart rate of an aquatic organism and the individual response evaluation apparatus by real time measurement of a heart rate of an aquatic organism according to the present invention may effectively fix the aquatic organism for real time measurement of the heart rate of an aquatic organism, and may measure the heart rate using digital holography to display the heart rate while configuring a data format to allow the corresponding data to be stored for a long time, thereby treating a compound for inducing an individual response, securing a heart rate change in real time by image processing, and then effectively determining the presence or absence of harmfulness due to induction of the individual response.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: May 28, 2024
    Assignee: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE
    Inventors: Ik Hwan Kwon, Tae Geol Lee, Sang Won Lee
  • Publication number: 20240158705
    Abstract: The present disclosure provides a method and device for refining waste plastic pyrolysis oil, the method including (S1) subjecting a waste plastic pyrolysis oil feedstock to a heat treatment by charging the waste plastic pyrolysis oil feedstock into a rotary kiln reactor and increasing a temperature of the rotary kiln reactor to form a product; (S2) recovering a gas component from the product of step (S1); (S3) separating a high boiling point wax component from the recovered gas component and re-supplying the separated high boiling point wax component to the rotary kiln reactor in step (S1); and (S4) recovering refined oil from the gas component from which the high boiling point wax component is removed.
    Type: Application
    Filed: November 13, 2023
    Publication date: May 16, 2024
    Inventors: Sang Hwan Jo, Soo Kil Kang, Ik Hwan Na, Ho Won Lee, Jae Heum Jung, Se Rah Moon, Hee Young Jeon
  • Patent number: 11940716
    Abstract: A camera module includes: a first lens module disposed in a housing; and a reflective module. The reflective module includes: a reflective member including at least two reflective surfaces disposed at different angles and configured to reflect light passing through the first lens module; and a carrier disposed between the reflective member and the housing. The cameral module further includes an image sensor configured to collect light reflected from the reflective module. The reflective member is configured to move in a first direction with respect to the carrier, and the carrier is configured to move in a second direction perpendicular to the first direction with respect to the housing.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: March 26, 2024
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Young Hwan Kwon, Ik Jin Jang, Chuel Jin Park, Se Houn Lee
  • Patent number: 9394187
    Abstract: An electrolysis device with a rectifier comprises: an electrolytic cell; a joint panel with a first surface joined to the electrolytic cell; an electrode module comprising a housing, a plurality of electrodes provided inside the housing, and an auxiliary panel joined to a second surface of the joint panel, the auxiliary panel having a first end installed in the electrolytic cell and a second end perpendicularly protruding from an external periphery of a second end of the housing; a rectifier module having a second side surface from which an electrode protrudes; an L-shaped panel joined to second surface of the joint panel and any side surface of the rectifier module; and a bus bar that connects the electrode of the electrode module to the electrode of the rectifier module.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: July 19, 2016
    Assignee: TECHCROSS CO., LTD.
    Inventors: Kyu Won Park, Yong Seok Park, Ik Hwan Lee, Seong Tae Kim, Hai Don Lee, Gwang Ho Lee, Young Min Kim
  • Publication number: 20140042019
    Abstract: An electrolysis device with a rectifier comprises: an electrolytic cell; a joint panel with a first surface joined to the electrolytic cell; an electrode module comprising a housing, a plurality of electrodes provided inside the housing, and an auxiliary panel joined to a second surface of the joint panel, the auxiliary panel having a first end installed in the electrolytic cell and a second end perpendicularly protruding from an external periphery of a second end of the housing; a rectifier module having a second side surface from which an electrode protrudes; an L-shaped panel joined to second surface of the joint panel and any side surface of the rectifier module; and a bus bar that connects the electrode of the electrode module to the electrode of the rectifier module.
    Type: Application
    Filed: November 28, 2011
    Publication date: February 13, 2014
    Applicant: TECHCROSS CO., LTD.
    Inventors: Kyu Won Park, Yong Seok Park, Ik Hwan Lee, Seong Tae Kim, Hai Don Lee, Gwang Ho Lee, Young Min Kim