Patents by Inventor Chang Hwan Im

Chang Hwan Im 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: 11987655
    Abstract: The present invention relates to polyolefin. More specifically, the present invention relate s to polyolefin having excellent dart drop impact strength, and exhibiting improved transparency and satisfying one of the following 1)˜4): 1) when density is 0.9165 g/cm3 or more and less than 0.9175 g/cm3, the content of SCB (Short Chain Branch) is 9.5 to 10.5 wt %, 2) when density is 0.9175 g/cm3 or more and less than 0.9185 g/cm3, the content of SCB (Short Chain Branch) is 9.0 to 10.0 wt %, 3) when density is 0.9185 g/cm3 or more and less than 0.9195 g/cm3, the content of SCB (Short Chain Branch) is 8.5 to 9.5 wt %, 4) when density is 0.9195 g/cm3 or more and less than 0.9205 g/cm3, the content of SCB (Short Chain Branch) is 7.5 to 8.5 wt %, wherein the density is measured according to ASTM D1505.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: May 21, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Sung Min Lee, Jeongkyu Lee, Hyojoon Lee, Seyoung Kim, Sung Ho Park, Seul Ki Im, Jinyoung Lee, Chang Hwan Jang, Daesik Hong, Jisoo Song
  • Publication number: 20240139436
    Abstract: A method of controlling injection of a drug includes receiving a captured medical image of an object, identifying an object of interest from the medical image, based on a position and a shape of the object of interest, determining a drug injection position, based on the position and the shape of the object of interest, determining a plurality of electrode insertion positions, the plurality of electrodes being configured to supply a current to move the drug, defining a drug movement path based on a shape of the identified object of interest, generating current sequence information to move the drug along the drug movement path, the current sequence information defining a current applied over time to each of the plurality of electrodes, and outputting the current sequence information to a current source apparatus.
    Type: Application
    Filed: October 30, 2023
    Publication date: May 2, 2024
    Applicants: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, UIF (UNIVERSITY INDUSTRY FOUNDATION), YONSEI UNIVERSITY, IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Young Bin Choy, Han Bi Ji, Chang Hee Min, Jae Hoon Han, Won Seok Chang, Jun Won Park, Chang-Hwan Im, Kyeong-Gu Lee
  • Publication number: 20240066661
    Abstract: The embodiments provide a process for preparing a polishing sheet, a polishing pad using the same, and a process for preparing a semiconductor device using the same. The process for preparing a polishing sheet comprises forming a pattern on the surface of a polymer sheet and winding the patterned polymer sheet to form a wound roll in a cylindrical shape. Thus, there are great advantages in that it is possible to control the size and distribution ratio of a fine and uniform pattern at a desired location in an economical and efficient way and to freely design the type, size, structure, physical properties, and the like of the polishing sheet according to the purpose, whereby the application field can be expanded, and a bulk structure can be manufactured.
    Type: Application
    Filed: July 31, 2023
    Publication date: February 29, 2024
    Inventors: Joonho AN, Jangwon SEO, Chang Gyu IM, Jong Wook YUN, Kyung Hwan KIM
  • Publication number: 20230341846
    Abstract: A vehicle includes a drive for driving the vehicle, a display for outputting a visual stimulus image, and a controller that controls the drive and the display, the visual stimulus image contains a visual stimulus object having a repeating pattern, and the controller outputs, via the display, the visual stimulus image in which a size of the visual stimulus object changes over time.
    Type: Application
    Filed: November 10, 2022
    Publication date: October 26, 2023
    Inventors: Seung Kyu Nam, Il Yong Yoon, Tae Jun Lee, Chang Hwan Im, Jin Uk Kwon, Hye Rin Nam, Ji Hun Hwang
  • Publication number: 20230333652
    Abstract: A mobility device may include a drive for driving the mobility device, a projector for outputting a visual stimulus, an electroencephalogram device for detecting a brainwave of a user, and a controller for controlling the drive and/or the projector. The controller may be connected to the EEG device, and may be configured to control the projector to output the visual stimulus to a surface at a position spaced by a specified distance from the mobility device.
    Type: Application
    Filed: November 16, 2022
    Publication date: October 19, 2023
    Inventors: Seung Kyu Nam, Il Yong Yoon, Tae Jun Lee, Chang Hwan Im, Jin Uk Kwon, Hye Rin Nam, Ji Hun Hwang
  • Patent number: 11682398
    Abstract: An electronic apparatus includes: a communication device configured to receive a signal from each of a plurality of acceleration sensors attached to a face of a user; a memory configured to store a classification learning model that classifies words based on a plurality of sensor output values; and a processor configured to determine a word corresponding to a mouth shape of the user by input a value of the received signal to the classification learning model, when the signal is received from each of the plurality of acceleration sensors.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: June 20, 2023
    Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Chang-Hwan Im, Jinuk Kwon, Younsoo Chae
  • Publication number: 20220084522
    Abstract: An electronic apparatus includes: a communication device configured to receive a signal from each of a plurality of acceleration sensors attached to a face of a user; a memory configured to store a classification learning model that classifies words based on a plurality of sensor output values; and a processor configured to determine a word corresponding to a mouth shape of the user by input a value of the received signal to the classification learning model, when the signal is received from each of the plurality of acceleration sensors.
    Type: Application
    Filed: November 16, 2020
    Publication date: March 17, 2022
    Inventors: Chang-Hwan IM, Jinuk KWON, Younsoo CHAE
  • Patent number: 11106899
    Abstract: An electronic device, an avatar facial expression system, and a controlling method thereof are provided. The electronic device includes a sensor part that is attached in the facial part of a user and detects a facial electromyography signal according to a facial expression, a processor that extracts a feature based on the facial electromyography signal and determines a data value of an avatar's facial movement corresponding to the extracted feature, and a display that controls a facial movement of the avatar based on the data value of the avatar's facial movement and displays a facial expression of the avatar corresponding to the facial expression of the user.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: August 31, 2021
    Assignee: INDUSTRY UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Chang-Hwan Im, Ho-Seung Cha, Seongjun Choi
  • Publication number: 20200327312
    Abstract: An electronic device, an avatar facial expression system, and a controlling method thereof are provided. The electronic device includes a sensor part that is attached in the facial part of a user and detects a facial electromyography signal according to a facial expression, a processor that extracts a feature based on the facial electromyography signal and determines a data value of an avatar's facial movement corresponding to the extracted feature, and a display that controls a facial movement of the avatar based on the data value of the avatar's facial movement and displays a facial expression of the avatar corresponding to the facial expression of the user.
    Type: Application
    Filed: August 7, 2019
    Publication date: October 15, 2020
    Inventors: Chang-Hwan IM, Ho-Seung CHA, Seongjun CHOI
  • Publication number: 20110230781
    Abstract: The present invention provides an apparatus and a method for early diagnosis of dementia which measure and evaluate dimensional complexity or the generation of synchronized brain wave signals on a specific frequency or in a specific frequency band, based on the brain wave signals measured from a multi-channel brain wave measurement system. The apparatus comprises: a measurement unit with electrodes having plural channels for measuring brain wave signals; an amplification unit which amplifies brain wave signals measured by the measurement unit; a dementia diagnosis unit which measures dimensional complexity or the generation degree of synchronized brain wave signals on a specific frequency or in a specific frequency band based on the amplified brain wave signals; and a dementia determination unit which diagnoses dementia based on the dimensional complexity or the degree of synchronization measured in the dementia diagnosis unit.
    Type: Application
    Filed: September 1, 2009
    Publication date: September 22, 2011
    Inventors: Seung Hwan Lee, Chang Hwan Im