Inventor
ARAKANE TAKASHI
JP27 patents
⚠️ This page may combine multiple inventors who share the name “ARAKANE TAKASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IDEMITSU KOSAN CO
17 patentsUS8367222B2Feb 5, 2013
Organic electroluminescent device
IDEMITSU KOSAN CO23 citations92
US6929871B2Aug 16, 2005
Organic electric-field light-emitting element
IDEMITSU KOSAN CO27 citations92
US6818327B2Nov 16, 2004
Organic electroluminescence device
IDEMITSU KOSAN CO26 citations92
US6815090B1Nov 9, 2004
Organic electroluminescence device
IDEMITSU KOSAN CO36 citations92
US8911886B2Dec 16, 2014
Material for organic electroluminescent devices and organic electroluminescent devices made by using the same
IDEMITSU KOSAN CO4 citations84
US8623524B2Jan 7, 2014
Organic electroluminescent device
IDEMITSU KOSAN CO13 citations84
US7990046B2Aug 2, 2011
Material for organic electroluminescent devices and organic electroluminescent devices made by using the same
IDEMITSU KOSAN CO9 citations84
US7879465B2Feb 1, 2011
Organic electric-field light-emitting element
IDEMITSU KOSAN CO8 citations84
US7737625B2Jun 15, 2010
Organic electroluminescent device with carrier blocking layer interposed between two emitting layers
IDEMITSU KOSAN CO9 citations84
US7087322B2Aug 8, 2006
Organic electroluminescence device
IDEMITSU KOSAN CO16 citations84
US8035297B2Oct 11, 2011
Organic electroluminescent device with carrier blocking layer interposed between two emitting layers
IDEMITSU KOSAN CO5 citations74
US5968699AOct 19, 1999
Electrophotographic carrier and electrophotographic developer using same
IDEMITSU KOSAN CO13 citations72
US7939183B2May 10, 2011
Material for organic electroluminescent device and organic electroluminescent device using same
IDEMITSU KOSAN CO2 citations63
US7235312B2Jun 26, 2007
Aromatic compounds and organic electroluminescent devices made by using the same
IDEMITSU KOSAN CO2 citations63
US6197465B1Mar 6, 2001
Carrier for electrophotography and developer for electrophotography using the carrier
IDEMITSU KOSAN CO2 citations61
USRE46368EApr 18, 2017
Material for organic electroluminescent devices and organic electroluminescent devices made by using the same
IDEMITSU KOSAN CO0 citations52
US7834346B2Nov 16, 2010
Nitrogenous heterocyclic derivative and organic electroluminescence device making use of the same
IDEMITSU KOSAN CO1 citations52
IWAKUMA TOSHIHIRO
5 patentsUS8685543B2Apr 1, 2014
Material for organic electroluminescent devices and organic electroluminescent devices made by using the same
IWAKUMA TOSHIHIRO4 citations84
US8580391B2Nov 12, 2013
Material for organic electroluminescence devices and organic electroluminescence device using the material
IWAKUMA TOSHIHIRO6 citations84
US8741450B2Jun 3, 2014
Material for organic electroluminescence devices and organic electroluminescence device using the material
IWAKUMA TOSHIHIRO4 citations73
US8895154B2Nov 25, 2014
Organic electroluminescent device
IWAKUMA TOSHIHIRO4 citations70
US8580398B2Nov 12, 2013
Material for organic electroluminescent devices and organic electroluminescent devices made by using the same
IWAKUMA TOSHIHIRO2 citations62