Inventor
KASE KOUKI
JP16 patents
⚠️ This page may combine multiple inventors who share the name “KASE KOUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HODOGAYA CHEMICAL CO LTD
13 patentsUS11706943B2Jul 18, 2023
Organic electroluminescent element and method for producing same
HODOGAYA CHEMICAL CO LTD3 citations72
US11437583B2Sep 6, 2022
Organic electroluminescence device that includes compound having benzoazole structure
HODOGAYA CHEMICAL CO LTD2 citations71
US11997870B2May 28, 2024
Organic electroluminescent element and method for producing same
HODOGAYA CHEMICAL CO LTD0 citations61
US11925108B2Mar 5, 2024
Compound having triarylamine structure and organic electroluminescence device
HODOGAYA CHEMICAL CO LTD1 citations60
US12221430B2Feb 11, 2025
Compound having pyrimidine ring structure and organic electroluminescence device
HODOGAYA CHEMICAL CO LTD0 citations59
US11974499B2Apr 30, 2024
Organic EL device, amine compound having benzazole ring structure, and method in which said amine compound is used in capping layer of organic EL device
HODOGAYA CHEMICAL CO LTD0 citations51
US11925107B2Mar 5, 2024
Organic electroluminescent device
HODOGAYA CHEMICAL CO LTD0 citations51
US11578065B2Feb 14, 2023
Organic electroluminescence device
HODOGAYA CHEMICAL CO LTD0 citations51
US12037332B2Jul 16, 2024
Compound including benzimidazole ring structure and organic electroluminescent element
HODOGAYA CHEMICAL CO LTD0 citations50
US11407709B2Aug 9, 2022
Aryldiamine compound and organic electroluminescent element
HODOGAYA CHEMICAL CO LTD0 citations50
US12102002B2Sep 24, 2024
Compound having benzazole ring structure, and organic electroluminescent device
HODOGAYA CHEMICAL CO LTD0 citations49
US12024527B2Jul 2, 2024
Compound having azabenzoxazole ring structure and organic electroluminescent element
HODOGAYA CHEMICAL CO LTD0 citations48
US9837620B2Dec 5, 2017
Benzopyridoindole derivative and organic electroluminescent element
HODOGAYA CHEMICAL CO LTD0 citations40
YOKOYAMA NORIMASA
3 patentsUS9196837B2Nov 24, 2015
Compound having indenocarbazole ring structure, and organic electroluminescent device
YOKOYAMA NORIMASA3 citations62
US8748014B2Jun 10, 2014
Compound having a substituted anthracene ring structure and pyridoindole ring structure, and organic electroluminescent device
YOKOYAMA NORIMASA3 citations61
US9196839B2Nov 24, 2015
Compound having triphenylamine structure, and organic electroluminescent device
YOKOYAMA NORIMASA1 citations49