Inventor
KAWAMURA HISAYUKI
JP47 patents
⚠️ This page may combine multiple inventors who share the name “KAWAMURA HISAYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IDEMITSU KOSAN CO
36 patentsUS6416888B1Jul 9, 2002
Organic electroluminescent device and method of manufacture thereof
IDEMITSU KOSAN CO159 citations99
US7399537B2Jul 15, 2008
Organic electroluminescence device and phenylenediamine derivative
IDEMITSU KOSAN CO87 citations98
US6541129B1Apr 1, 2003
Organic electroluminescence device and phenylenediamine derivative
IDEMITSU KOSAN CO86 citations98
US6951693B2Oct 4, 2005
Organic electroluminescence device
IDEMITSU KOSAN CO88 citations97
US6743948B1Jun 1, 2004
Organic electroluminescent device
IDEMITSU KOSAN CO118 citations97
US7393600B2Jul 1, 2008
Sputtering target, sintered article, conductive film fabricated by utilizing the same, organic EL device, and substrate for use therein
IDEMITSU KOSAN CO50 citations96
US7306861B2Dec 11, 2007
Sputtering target, sintered compact, electrically conductive film produced by using the same, and organic EL device and substrate used for the same
IDEMITSU KOSAN CO45 citations96
US6074734AJun 13, 2000
Organic electroluminescence device, organic thin film, and triamine compound
IDEMITSU KOSAN CO62 citations96
US7429425B2Sep 30, 2008
Oligoarylene derivatives and organic electroluminescent devices made by using the same
IDEMITSU KOSAN CO20 citations93
US6856089B2Feb 15, 2005
Organic electroluminescence element and manufacturing method thereof
IDEMITSU KOSAN CO17 citations93
US6635365B2Oct 21, 2003
Organic electroluminescent device and method of manufacture thereof
IDEMITSU KOSAN CO29 citations93
US6632543B1Oct 14, 2003
Amine compound and organic electroluminescence device using the compound
IDEMITSU KOSAN CO51 citations93
US6504300B2Jan 7, 2003
Organic electroluminescent device
IDEMITSU KOSAN CO21 citations93
US6259203B1Jul 10, 2001
Organic electroluminescent device
IDEMITSU KOSAN CO20 citations93
US6214481B1Apr 10, 2001
Organic electroluminescent device
IDEMITSU KOSAN CO17 citations93
US5837166ANov 17, 1998
Organic electroluminescence device and arylenediamine derivative
IDEMITSU KOSAN CO35 citations93
US7528542B2May 5, 2009
Organic electroluminescent device
IDEMITSU KOSAN CO37 citations92
US8044222B2Oct 25, 2011
Aromatic amine derivatives and organic electroluminescent device using same
IDEMITSU KOSAN CO8 citations84
US7888865B2Feb 15, 2011
Organic electroluminescent device and display having multiple emitting layers
IDEMITSU KOSAN CO9 citations84
US7737625B2Jun 15, 2010
Organic electroluminescent device with carrier blocking layer interposed between two emitting layers
IDEMITSU KOSAN CO9 citations84
US7598667B2Oct 6, 2009
Arylamine compound and organic electroluminescence device containing the same
IDEMITSU KOSAN CO15 citations84
US6437373B1Aug 20, 2002
Organic electroluminescence layer with oligomer hole injection layer
IDEMITSU KOSAN CO14 citations84
US8035297B2Oct 11, 2011
Organic electroluminescent device with carrier blocking layer interposed between two emitting layers
IDEMITSU KOSAN CO5 citations74
US6998773B2Feb 14, 2006
Organic electroluminescence element and manufacturing method thereof
IDEMITSU KOSAN CO10 citations74
US6762438B2Jul 13, 2004
Organic electroluminescent layer with oligomer hole injection layer
IDEMITSU KOSAN CO6 citations74
US5358788AOct 25, 1994
Organic electroluminescence device containing a silanamine compound
IDEMITSU KOSAN CO14 citations74
US8013160B2Sep 6, 2011
Fluorene-based derivative and organic electroluminescence device employing the same
IDEMITSU KOSAN CO3 citations63
US7939183B2May 10, 2011
Material for organic electroluminescent device and organic electroluminescent device using same
IDEMITSU KOSAN CO2 citations63
US7781628B2Aug 24, 2010
Fluorene-based derivative and organic electroluminescence device employing the same
IDEMITSU KOSAN CO4 citations63
US7683225B2Mar 23, 2010
Fluorene-based derivative and organic electroluminescence device employing the same
IDEMITSU KOSAN CO3 citations63
US7576486B2Aug 18, 2009
Organic electroluminescence element having two electroluminescent layers through electron barrier layer
IDEMITSU KOSAN CO4 citations63
US7423371B2Sep 9, 2008
Organic electroluminescence element and manufacturing method thereof
IDEMITSU KOSAN CO4 citations63
US7321066B2Jan 22, 2008
Method for producing aromatic diamine derivative
IDEMITSU KOSAN CO4 citations63
US6489489B2Dec 3, 2002
Organic electroluminescent device
IDEMITSU KOSAN CO2 citations63
US9112167B2Aug 18, 2015
Aromatic amine derivatives and organic electroluminescent device using same
IDEMITSU KOSAN CO0 citations52
US7976957B2Jul 12, 2011
Aromatic amine derivative and organic electroluminescent element employing the same
IDEMITSU KOSAN CO0 citations42
LG CHEMICAL LTD
4 patentsUS12167681B2Dec 10, 2024
Anthracene derivatives and organic electronic device using same
LG CHEMICAL LTD0 citations52
US12071508B2Aug 27, 2024
Polymers, use thereof as hole transport material, and organic electronic devices comprising same
LG CHEMICAL LTD0 citations52
US11780855B2Oct 10, 2023
2-(2′-diarylaminophenyl) borabenzene derivative and organic electronic device including the derivative
LG CHEMICAL LTD0 citations52
US12545650B2Feb 10, 2026
Bisanthracene derivatives having solubilizing substituent, and organic electroluminescence device using same
LG CHEMICAL LTD0 citations46