Inventor
HIGASHI HISAHIRO
JP19 patents
Patents
19 patentsUS6406804B1Jun 18, 2002
Organic electroluminescent device
IDEMITSU KOSAN CO127 citations99
US5130603AJul 14, 1992
Organic electroluminescence device
IDEMITSU KOSAN CO248 citations99
US5121029AJun 9, 1992
Electroluminescence device having an organic electroluminescent element
IDEMITSU KOSAN CO297 citations99
US6617051B1Sep 9, 2003
Organic electroluminescence device
IDEMITSU KOSAN CO81 citations98
US6534199B1Mar 18, 2003
Organic electroluminescence device and organic light emitting medium
IDEMITSU KOSAN CO130 citations98
US5503910AApr 2, 1996
Organic electroluminescence device
IDEMITSU KOSAN CO144 citations98
US6093864AJul 25, 2000
Aromatic dimethylidyne compounds
IDEMITSU KOSAN CO77 citations96
US5536949AJul 16, 1996
Charge injection auxiliary material and organic electroluminescence device containing the same
IDEMITSU KOSAN CO97 citations96
US5142343AAug 25, 1992
Organic electroluminescence device with oligomers
IDEMITSU KOSAN CO69 citations96
US6224966B1May 1, 2001
Organic electroluminescent device
IDEMITSU KOSAN CO52 citations93
US6214481B1Apr 10, 2001
Organic electroluminescent device
IDEMITSU KOSAN CO17 citations93
US6531234B1Mar 11, 2003
Organic electroluminescence device and method of its manufacture
IDEMITSU KOSAN CO19 citations92
US5705284AJan 6, 1998
Thin film electroluminescence device
IDEMITSU KOSAN CO23 citations92
US5443921AAug 22, 1995
Thin film electroluminescence device and process for production thereof
IDEMITSU KOSAN CO26 citations92
US5366811ANov 22, 1994
Organic electroluminescence device
IDEMITSU KOSAN CO54 citations92
US7709102B2May 4, 2010
Organic electroluminescence device
IDEMITSU KOSAN CO8 citations84
US7045950B2May 16, 2006
Organic electroluminescence device with organic compound layer containing lower than 500 PPM of a halogen-containing compound
IDEMITSU KOSAN CO14 citations84
US6773831B2Aug 10, 2004
Organic electroluminescent device
IDEMITSU KOSAN CO8 citations74
US6489489B2Dec 3, 2002
Organic electroluminescent device
IDEMITSU KOSAN CO2 citations63