Assignee
KAI TAKAHIRO
JP13 patents
Top patents by PatentIndex Score
US8062769B2Nov 22, 2011
Indolocarbazole compound for use in organic electroluminescent device and organic electroluminescent device
KAI TAKAHIRO36 citations92
US8795848B2Aug 5, 2014
Indolocarbazole derivative with fused heterocyclic aromatic group for organic electroluminescent device and organic electroluminescent device containing same
KAI TAKAHIRO11 citations84
US9156843B2Oct 13, 2015
Organic electroluminescent device comprising an organic layer containing an indolocarbazole compound
KAI TAKAHIRO7 citations83
US8722208B2May 13, 2014
Organic electroluminescent device
KAI TAKAHIRO11 citations83
US8227798B2Jul 24, 2012
Compound for organic electroluminescent device and organic electroluminescent device
KAI TAKAHIRO10 citations83
US9133205B2Sep 15, 2015
Organic electroluminescent device
KAI TAKAHIRO4 citations72
US9343685B2May 17, 2016
Organic electroluminescent element
KAI TAKAHIRO4 citations71
US9260433B2Feb 16, 2016
Organic electroluminescent device
KAI TAKAHIRO2 citations62
US8815416B2Aug 26, 2014
Organic electroluminescent device using a bipyrimidine compound
KAI TAKAHIRO2 citations62
US8389131B2Mar 5, 2013
Material for use in phosphorescent device and organic electroluminescent device using same
KAI TAKAHIRO4 citations62
US9299947B2Mar 29, 2016
Organic electroluminescent device having an electron- and /or exciton-blocking layer comprising an indolocarbazole compound
KAI TAKAHIRO0 citations41
US9290498B2Mar 22, 2016
Organic electroluminescent device having an electron- and/or exciton-blocking layer comprising an indolocarbazole compound
KAI TAKAHIRO0 citations41
US8703302B2Apr 22, 2014
Indolocarbazole derivative with aromatic phosphne oxide group for organic electroluminescent device and organic electroluminescent device containing same
KAI TAKAHIRO0 citations41