Inventor
AKASHI NOBUTAKA
JP31 patents
⚠️ This page may combine multiple inventors who share the name “AKASHI NOBUTAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SAMSUNG DISPLAY CO LTD
26 patentsUS9590186B2Mar 7, 2017
Material for organic electroluminescent device and organic electroluminescent device including the same
SAMSUNG DISPLAY CO LTD15 citations92
US10689568B2Jun 23, 2020
Organic electroluminescent device
SAMSUNG DISPLAY CO LTD2 citations73
US10333085B2Jun 25, 2019
Polycyclic compound and organic electroluminescence device including the same
SAMSUNG DISPLAY CO LTD5 citations73
US10184078B2Jan 22, 2019
Organic electroluminescent device
SAMSUNG DISPLAY CO LTD2 citations73
US11050025B2Jun 29, 2021
Material for organic electroluminescent device and organic electroluminescent device including the same
SAMSUNG DISPLAY CO LTD2 citations72
US12550609B2Feb 10, 2026
Material for organic electroluminescent device and organic electroluminescent device including the same
SAMSUNG DISPLAY CO LTD0 citations62
US10886476B2Jan 5, 2021
Polycyclic compound and organic electroluminescence device including the same
SAMSUNG DISPLAY CO LTD1 citations62
US9902901B2Feb 27, 2018
Organic electroluminescent device
SAMSUNG DISPLAY CO LTD1 citations62
US12069946B2Aug 20, 2024
Organic electroluminescence device and polycyclic compound for organic electroluminescence device
SAMSUNG DISPLAY CO LTD0 citations52
US11393985B2Jul 19, 2022
Organic electroluminescence device and polycyclic compound for organic electroluminescence device
SAMSUNG DISPLAY CO LTD0 citations52
US11174427B2Nov 16, 2021
Aromatic compound and organic electroluminescence device including the same
SAMSUNG DISPLAY CO LTD0 citations52
US10385262B2Aug 20, 2019
Organic electroluminescent device
SAMSUNG DISPLAY CO LTD0 citations52
US10147886B2Dec 4, 2018
Organic electroluminescent material and organic electroluminescent device including the same
SAMSUNG DISPLAY CO LTD0 citations52
US12520722B2Jan 6, 2026
Nitrogen-containing compound and organic electroluminescence device including the same
SAMSUNG DISPLAY CO LTD0 citations51
US12421256B2Sep 23, 2025
Organic electroluminescence device and polycyclic compound for organic electroluminescence device
SAMSUNG DISPLAY CO LTD0 citations51
US11889752B2Jan 30, 2024
Organic electroluminescence device and polycyclic compound for organic electroluminescence device
SAMSUNG DISPLAY CO LTD0 citations51
US11844272B2Dec 12, 2023
Organic electroluminescence device and polycyclic compound for organic electroluminescence device
SAMSUNG DISPLAY CO LTD0 citations51
US11527726B2Dec 13, 2022
Organic electroluminescence device and compound for organic electroluminescence device
SAMSUNG DISPLAY CO LTD0 citations51
US11018306B2May 25, 2021
Compound for thermally activated delayed fluorescence and organic electroluminescence device including the same
SAMSUNG DISPLAY CO LTD0 citations51
US9214638B2Dec 15, 2015
Material for organic electroluminescent device and organic electroluminescence device including the same
SAMSUNG DISPLAY CO LTD0 citations51
US12289991B2Apr 29, 2025
Organic electroluminescence device
SAMSUNG DISPLAY CO LTD0 citations50
US11502259B2Nov 15, 2022
Organic electroluminescence device and polycyclic compound for organic electroluminescence device
SAMSUNG DISPLAY CO LTD0 citations49
US9269913B2Feb 23, 2016
Thiolate-bridged multinuclear copper(I) complex
SAMSUNG DISPLAY CO LTD0 citations49
US10862050B2Dec 8, 2020
Heterocyclic compound and organic electroluminescence device including the same
SAMSUNG DISPLAY CO LTD0 citations41
US10714693B2Jul 14, 2020
Polycyclic compound and organic electroluminescence device including the same
SAMSUNG DISPLAY CO LTD0 citations41
US10686139B2Jun 16, 2020
Nitrogen-containing compound and organic electroluminescence device including the same
SAMSUNG DISPLAY CO LTD0 citations39
BANDO CHEMICAL IND
5 patentsUS7629059B2Dec 8, 2009
Organo-electronic functional material and use thereof
BANDO CHEMICAL IND9 citations83
US7271291B2Sep 18, 2007
1,3,5-tris (arylamino) benzenes
BANDO CHEMICAL IND2 citations62
US8043725B2Oct 25, 2011
Organic electroluminescence element
BANDO CHEMICAL IND3 citations61
US7196224B2Mar 27, 2007
1,3,5-tris(arylamino)benzenes
BANDO CHEMICAL IND2 citations60
US8029920B2Oct 4, 2011
1,3,5-tris(diarylamino)benzenes and use thereof
BANDO CHEMICAL IND0 citations45