Inventor
NUMATA MASAKI
JP53 patents
⚠️ This page may combine multiple inventors who share the name “NUMATA MASAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SAMSUNG ELECTRONICS CO LTD
17 patentsUS10957863B2Mar 23, 2021
Condensed cyclic compound and organic light-emitting device including the same
SAMSUNG ELECTRONICS CO LTD4 citations72
US10615348B2Apr 7, 2020
Organic light-emitting device
SAMSUNG ELECTRONICS CO LTD1 citations62
US10510966B2Dec 17, 2019
Organic light-emitting device
SAMSUNG ELECTRONICS CO LTD1 citations62
US10396295B2Aug 27, 2019
Condensed cyclic compound and organic light-emitting device including the same
SAMSUNG ELECTRONICS CO LTD1 citations62
US11043639B2Jun 22, 2021
Charge transport material, composition including the charge transport material, and organic light-emitting device including the composition
SAMSUNG ELECTRONICS CO LTD2 citations61
US12060344B2Aug 13, 2024
Heterocyclic compound, composition including the same, and organic light-emitting device including the heterocyclic compound
SAMSUNG ELECTRONICS CO LTD0 citations60
US11542252B2Jan 3, 2023
Heterocyclic compound, composition including the same, and organic light-emitting device including the heterocyclic compound
SAMSUNG ELECTRONICS CO LTD0 citations60
US10651392B2May 12, 2020
Organic light-emitting device
SAMSUNG ELECTRONICS CO LTD1 citations60
US12501828B2Dec 16, 2025
Organic light-emitting device and apparatus including the same
SAMSUNG ELECTRONICS CO LTD0 citations52
US12167679B2Dec 10, 2024
Organic light-emitting device
SAMSUNG ELECTRONICS CO LTD0 citations52
US11925106B2Mar 5, 2024
Condensed cyclic compound, composition including the same, and organic light-emitting device including the condensed cyclic compound
SAMSUNG ELECTRONICS CO LTD0 citations52
US11339143B2May 24, 2022
Condensed cyclic compound and organic light-emitting device including the same
SAMSUNG ELECTRONICS CO LTD0 citations52
US11233200B2Jan 25, 2022
Condensed cyclic compound, composition including the same, and organic light-emitting device including the condensed cyclic compound
SAMSUNG ELECTRONICS CO LTD0 citations52
US11697645B2Jul 11, 2023
Heterocyclic compound, composition including heterocyclic compound, and organic light-emitting device including heterocyclic compound
SAMSUNG ELECTRONICS CO LTD0 citations51
US11706977B2Jul 18, 2023
Heterocyclic compound, composition including the same, and organic light-emitting device including the heterocyclic compound
SAMSUNG ELECTRONICS CO LTD0 citations49
US12178122B2Dec 24, 2024
Compound, composition including the same, liquid composition, and organic electroluminescent device
SAMSUNG ELECTRONICS CO LTD0 citations48
US10988447B2Apr 27, 2021
Bipyridine derivatives and their uses for organic light emitting diodes
SAMSUNG ELECTRONICS CO LTD0 citations48
IDEMITSU KOSAN CO
13 patentsUS9373792B2Jun 21, 2016
Anthracene derivative and organic electroluminescent element using the same
IDEMITSU KOSAN CO8 citations84
US9147847B2Sep 29, 2015
Anthracene derivative and organic electroluminescent element using the same
IDEMITSU KOSAN CO9 citations84
US8866135B2Oct 21, 2014
Anthracene derivative and organic electroluminescent element using the same
IDEMITSU KOSAN CO11 citations84
US8372529B2Feb 12, 2013
Crosslinked pi-conjugated heteroacene compound for organic electroluminescence device and organic electroluminescence device using the same
IDEMITSU KOSAN CO9 citations84
US8049411B2Nov 1, 2011
Material for organic electroluminescence device and organic electroluminescence device using the same
IDEMITSU KOSAN CO7 citations84
US11069862B2Jul 20, 2021
Material for organic electroluminescence device and organic electroluminescence device using the same
IDEMITSU KOSAN CO1 citations73
US9847493B2Dec 19, 2017
Material for organic electroluminescence device and organic electroluminescence device using the same
IDEMITSU KOSAN CO2 citations73
US9660203B2May 23, 2017
Material for organic electroluminescence device and organic electroluminescence device using the same
IDEMITSU KOSAN CO2 citations73
US11895917B2Feb 6, 2024
Material for organic electroluminescence device and organic electroluminescence device using the same
IDEMITSU KOSAN CO0 citations63
US10026907B2Jul 17, 2018
Material for organic electroluminescence device and organic electroluminescence device using the same
IDEMITSU KOSAN CO1 citations63
US10020454B2Jul 10, 2018
Material for organic electroluminescence device and organic electroluminescence device using the same
IDEMITSU KOSAN CO1 citations63
US7968213B2Jun 28, 2011
Material for organic electroluminescence device and organic electroluminescence device utilizing the same
IDEMITSU KOSAN CO4 citations63
US9714237B2Jul 25, 2017
Material for organic electroluminescent device and organic electroluminescent device using same
IDEMITSU KOSAN CO0 citations52
KATO TOMOKI
6 patentsUS9382206B2Jul 5, 2016
Nitrogen-containing aromatic heterocyclic derivative and organic electroluminescence device using the same
KATO TOMOKI8 citations84
US9056870B2Jun 16, 2015
Material for organic electroluminescence device and organic electroluminescence device using the same
KATO TOMOKI7 citations84
US8927118B2Jan 6, 2015
Material for organic electroluminescence device and organic electroluminescence device using the same
KATO TOMOKI4 citations84
US8057919B2Nov 15, 2011
Material for organic electroluminescence device and organic electroluminescence device using the same
KATO TOMOKI11 citations84
US8409730B2Apr 2, 2013
Crosslinked pi-conjugated heteroacene compound for organic electroluminescence device and organic electroluminescence device using the same
KATO TOMOKI2 citations63
US8318323B2Nov 27, 2012
Polycyclic compounds and organic electroluminescence device employing the same
KATO TOMOKI5 citations63
IWAKUMA TOSHIHIRO
4 patentsUS8114530B2Feb 14, 2012
Material for organic electroluminescence device and organic electroluminescence device utilizing the same
IWAKUMA TOSHIHIRO9 citations84
US8080658B2Dec 20, 2011
Material for organic electroluminescent element and organic electroluminescent element employing the same
IWAKUMA TOSHIHIRO7 citations84
US9209410B2Dec 8, 2015
Material for organic electroluminescence device and organic electroluminescence device utilizing the same
IWAKUMA TOSHIHIRO3 citations63
US8471008B2Jun 25, 2013
Material for organic electroluminescent element and organic electroluminescent element employing the same
IWAKUMA TOSHIHIRO0 citations52
NUMATA MASAKI
4 patentsUS9266865B2Feb 23, 2016
Material for organic electroluminescent element, and organic electroluminescent element using same
NUMATA MASAKI5 citations82
US9923151B2Mar 20, 2018
Material for organic electroluminescent elements, and organic electroluminescent element using same
NUMATA MASAKI3 citations72
US9199974B2Dec 1, 2015
Material for organic electroluminescent device and organic electroluminescent device using same
NUMATA MASAKI4 citations71
US8895966B2Nov 25, 2014
Material for organic electroluminescence element, and organic electroluminescence element using same
NUMATA MASAKI4 citations71
KYULUX INC
2 patentsKAWAMURA MASAHIRO
1 patentNISHIMURA KAZUKI
1 patentUNIV KYUSHU NAT UNIV CORP
1 patentSAITO HIROYUKI
1 patentShowing the top 50 of 53 patents by PatentIndex Score.