Patents by Inventor Chi Hoon AHN

Chi Hoon AHN 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).

  • ORGANIC ELECTROLUMINESCENT DEVICE
    Publication number: 20240147845
    Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.
    Type: Application
    Filed: December 6, 2023
    Publication date: May 2, 2024
    Inventors: Kyoung-Jin PARK, Tae-Jin LEE, Jae-Hoon SHIM, Yoo Jin DOH, Hee-Choon AHN, Young-Kwang KIM, Doo-Hyeon MOON, Jeong-Eun YANG, Su-Hyun LEE, Chi-Sik KIM, Ji-Song JUN
  • MULTI-COMPONENT HOST MATERIAL AND AN ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING THE SAME
    Publication number: 20240090328
    Abstract: The present invention relates to a multi-component host material and an organic electroluminescent device comprising the same. By comprising a specific combination of the multi-component host compounds, the organic electroluminescent device according to the present invention can provide high luminous efficiency and excellent lifespan characteristics.
    Type: Application
    Filed: October 26, 2023
    Publication date: March 14, 2024
    Inventors: Hee-Choon AHN, Young-Kwang KIM, Su-Hyun LEE, Ji-Song JUN, Seon-Woo LEE, Chi-Sik KIM, Kyoung-Jin PARK, Nam-Kyun KIM, Kyung-Hoon CHOI, Jae-Hoon SHIM, Young-Jun CHO, Kyung-Joo LEE
  • Organic electroluminescent device
    Patent number: 11917907
    Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: February 27, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Kyoung-Jin Park, Tae-Jin Lee, Jae-Hoon Shim, Yoo Jin Doh, Hee-Choon Ahn, Young-Kwang Kim, Doo-Hyeon Moon, Jeong-Eun Yang, Su-Hyun Lee, Chi-Sik Kim, Ji-Song Jun
  • AB6 family designer ligands of TGF-? superfamily
    Patent number: 11512126
    Abstract: A non-naturally occurring chimeric polypeptide having an activity provided by a TGF-beta family member is disclosed. The chimeric polypeptide of an embodiment comprises two or more domains or fragments from parental TGF-beta proteins operably linked such that the resulting polypeptide is capable of modulating a pathway associated with a TGF-beta family member. In one embodiment, the pathway is a SMAD or DAXX pathway.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: November 29, 2022
    Assignees: MOGAM INSTITUTE FOR BIOMEDICAK RESEARCH, JOINT CENTER FOR BIOSCIENCES
    Inventors: Sen Yon Choe, Chi Hoon Ahn, Ho Cheol Kim, Hyeon Jin Kim
  • AB6 FAMILY DESIGNER LIGANDS OF TGF-BETA SUPERFAMILY
    Publication number: 20200325216
    Abstract: A non-naturally occurring chimeric polypeptide having an activity provided by a TGF-beta family member is disclosed. The chimeric polypeptide of an embodiment comprises two or more domains or fragments from parental TGF-beta proteins operably linked such that the resulting polypeptide is capable of modulating a pathway associated with a TGF-beta family member. In one embodiment, the pathway is a SMAD or DAXX pathway.
    Type: Application
    Filed: May 31, 2017
    Publication date: October 15, 2020
    Applicants: MOGAM INSTITUTE FOR BIOMEDICAL RESEARCH, JOINT CENTER FOR BIOSCIENCE
    Inventors: Sen Yon CHOE, Chi Hoon AHN, Ho Cheoi KIM, Hyeon Jin KIM