Inventor
OKAJIMA MAKI
JP15 patents
⚠️ This page may combine multiple inventors who share the name “OKAJIMA MAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
10 patentsUS7229702B2Jun 12, 2007
Oligofluorenlylene compounds
CANON KK27 citations92
US7982213B2Jul 19, 2011
Phenanthroline compound and organic light emitting device using same
CANON KK13 citations84
US7338721B2Mar 4, 2008
Condensed polycyclic compound and organic light-emitting device using the same
CANON KK10 citations84
US7034454B2Apr 25, 2006
Organic light emitting device with reverse intersystem crossing light emitting molecules
CANON KK17 citations84
US10151990B2Dec 11, 2018
Toner
CANON KK16 citations83
US8354788B2Jan 15, 2013
Organic light emitting device
CANON KK10 citations83
US7550594B2Jun 23, 2009
Phenanthroline compound and organic light emitting device using same
CANON KK6 citations74
US7820478B2Oct 26, 2010
Light-emitting device
CANON KK2 citations61
US7750340B2Jul 6, 2010
Light-emitting device
CANON KK3 citations61
US9705087B2Jul 11, 2017
Organic light emitting device
CANON KK0 citations51