Inventor
KIM CHI-SIK
KR22 patents
⚠️ This page may combine multiple inventors who share the name “KIM CHI-SIK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ROHM & HAAS ELECT MATERIALS KOREA LTD
20 patentsUS11283028B2Mar 22, 2022
Organic electroluminescent compound and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD2 citations72
US10818846B2Oct 27, 2020
Electron transport material and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD6 citations72
US12114561B2Oct 8, 2024
Plurality of light-emitting materials and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD2 citations71
US11725138B2Aug 15, 2023
Organic electroluminescent compound and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD4 citations71
US12102001B2Sep 24, 2024
Organic electroluminescent compound, organic electroluminescent material comprising the same, and organic electroluminescent device
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations61
US11917907B2Feb 27, 2024
Organic electroluminescent device
ROHM & HAAS ELECT MATERIALS KOREA LTD1 citations61
US11751476B2Sep 5, 2023
Electron buffering material and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD1 citations61
US10319918B2Jun 11, 2019
Organic electroluminescent compound and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD1 citations61
US12565479B2Mar 3, 2026
Organic electroluminescent compound and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations60
US12446459B2Oct 14, 2025
Organic electroluminescent device
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations59
US11832515B2Nov 28, 2023
Organic electroluminescent compound, organic electroluminescent material comprising the same, and organic electroluminescent device
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations52
US12479860B2Nov 25, 2025
Organic electroluminescent compound, a plurality of host materials, and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations51
US12457899B2Oct 28, 2025
Multi-component host material and an organic electroluminescence device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations51
US12402531B2Aug 26, 2025
Multi-component host material and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations51
US12378228B2Aug 5, 2025
Plurality of host materials and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations51
US12356856B2Jul 8, 2025
Plurality of host materials and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations51
US11649225B2May 16, 2023
Organic electroluminescent compound and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations51
US9768394B2Sep 19, 2017
Organic electroluminescent compound and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD1 citations51
US11557728B2Jan 17, 2023
Organic electroluminescent compound and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations50
US12096687B2Sep 17, 2024
Plurality of light-emitting materials, organic electroluminescent compound, and organic electroluminescent device comprising the same
ROHM & HAAS ELECT MATERIALS KOREA LTD0 citations46