Inventor
KABASAWA NAOAKI
JP29 patents
⚠️ This page may combine multiple inventors who share the name “KABASAWA NAOAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HODOGAYA CHEMICAL CO LTD
21 patentsUS11056653B2Jul 6, 2021
Organic electroluminescence device
HODOGAYA CHEMICAL CO LTD5 citations73
US10326079B2Jun 18, 2019
Organic electroluminescent device
HODOGAYA CHEMICAL CO LTD3 citations73
US9818949B2Nov 14, 2017
Compound having acridan ring structure, and organic electroluminescent device
HODOGAYA CHEMICAL CO LTD2 citations73
US11158813B2Oct 26, 2021
Organic electroluminescent device
HODOGAYA CHEMICAL CO LTD2 citations72
US11437583B2Sep 6, 2022
Organic electroluminescence device that includes compound having benzoazole structure
HODOGAYA CHEMICAL CO LTD2 citations71
US10505119B2Dec 10, 2019
Organic electroluminescence device
HODOGAYA CHEMICAL CO LTD3 citations71
US11672169B2Jun 6, 2023
Organic electroluminescent element
HODOGAYA CHEMICAL CO LTD0 citations62
US11217754B2Jan 4, 2022
Organic electroluminescence device
HODOGAYA CHEMICAL CO LTD1 citations61
US11158811B2Oct 26, 2021
Organic electroluminescent device
HODOGAYA CHEMICAL CO LTD1 citations61
US10497876B2Dec 3, 2019
Organic electroluminescent device
HODOGAYA CHEMICAL CO LTD1 citations61
US12317744B2May 27, 2025
Compound having a fused-azole ring structure and organic electroluminescent element
HODOGAYA CHEMICAL CO LTD0 citations60
US10950797B2Mar 16, 2021
Organic electroluminescent device
HODOGAYA CHEMICAL CO LTD1 citations59
US11944004B2Mar 26, 2024
Organic electroluminescence element
HODOGAYA CHEMICAL CO LTD0 citations52
US10096779B2Oct 9, 2018
Pyrimidine derivatives and organic electroluminescent devices
HODOGAYA CHEMICAL CO LTD0 citations52
US11594683B2Feb 28, 2023
Organic electroluminescent device
HODOGAYA CHEMICAL CO LTD0 citations51
US10593884B2Mar 17, 2020
Organic electroluminescent device
HODOGAYA CHEMICAL CO LTD0 citations51
US9755152B2Sep 5, 2017
Compound having substituted anthracene ring structure and pyridoindole ring structure, and organic electroluminescent device
HODOGAYA CHEMICAL CO LTD0 citations51
US10892420B2Jan 12, 2021
Organic electroluminescent device
HODOGAYA CHEMICAL CO LTD0 citations50
US10566540B2Feb 18, 2020
Organic electroluminescent device
HODOGAYA CHEMICAL CO LTD0 citations40
US9905775B2Feb 27, 2018
Organic electroluminescent device
HODOGAYA CHEMICAL CO LTD0 citations40
US10559759B2Feb 11, 2020
Organic electroluminescent device
HODOGAYA CHEMICAL CO LTD0 citations39
YOKOYAMA NORIMASA
6 patentsUS8586210B2Nov 19, 2013
Compound having substituted anthracene ring structure and pyridoindole ring structure and organic electroluminescence device
YOKOYAMA NORIMASA3 citations60
US8852759B2Oct 7, 2014
Compound having acridan ring structure, and organic electroluminescent device
YOKOYAMA NORIMASA1 citations52
US9005776B2Apr 14, 2015
Compound having benzotriazole ring structure and organic electroluminescent element
YOKOYAMA NORIMASA1 citations51
US8927119B2Jan 6, 2015
Compound having substituted anthracene ring structure and pyridoindole ring structure, and organic electroluminescent device
YOKOYAMA NORIMASA0 citations51
US9905770B2Feb 27, 2018
Compound having acridan ring structure, and organic electroluminescent device
YOKOYAMA NORIMASA0 citations41
US9634258B2Apr 25, 2017
Compounds having bipyridyl group and carbazole ring, and organic electroluminescent element
YOKOYAMA NORIMASA0 citations36