P

Inventor

IWAKUMA TOSHIHIRO

JP89 patents
⚠️ This page may combine multiple inventors who share the name “IWAKUMA TOSHIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IDEMITSU KOSAN CO

21 patents
US8025815B2Sep 27, 2011

Naphthalene derivative, material for organic electroluminescence device, and organic electroluminescence device using the same

IDEMITSU KOSAN CO46 citations98
US7906226B2Mar 15, 2011

Organic electroluminescent device

IDEMITSU KOSAN CO81 citations98
US7250532B2Jul 31, 2007

Method for producing aromatic amino compound

IDEMITSU KOSAN CO103 citations97
US8034256B2Oct 11, 2011

Naphthalene derivative, material for organic electroluminescence device, and organic electroluminescence device using the same

IDEMITSU KOSAN CO35 citations96
US8021574B2Sep 20, 2011

Naphthalene derivative, material for organic electroluminescence device, and organic electroluminescence device using the same

IDEMITSU KOSAN CO38 citations96
US8029697B2Oct 4, 2011

Naphthalene derivative, material for organic electroluminescence device, and organic electroluminescence device using the same

IDEMITSU KOSAN CO32 citations93
US7846560B2Dec 7, 2010

Material for organic electroluminescence device and electroluminescence device employing the same

IDEMITSU KOSAN CO20 citations93
US7651791B2Jan 26, 2010

Material for organic electroluminescence device and electroluminescence device employing the same

IDEMITSU KOSAN CO23 citations93
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
US8372529B2Feb 12, 2013

Crosslinked pi-conjugated heteroacene compound for organic electroluminescence device and organic electroluminescence device using the same

IDEMITSU KOSAN CO9 citations84
US8049411B2Nov 1, 2011

Material for organic electroluminescence device and organic electroluminescence device using the same

IDEMITSU KOSAN CO7 citations84
US8039129B2Oct 18, 2011

Organic electroluminescence device and material for organic electroluminescence device

IDEMITSU KOSAN CO8 citations84
US7990046B2Aug 2, 2011

Material for organic electroluminescent devices and organic electroluminescent devices made by using the same

IDEMITSU KOSAN CO9 citations84
US7888865B2Feb 15, 2011

Organic electroluminescent device and display having multiple emitting layers

IDEMITSU KOSAN CO9 citations84
US7829204B2Nov 9, 2010

Material for organic electroluminescent device and organic electroluminescent device using same

IDEMITSU KOSAN CO8 citations84
US7737625B2Jun 15, 2010

Organic electroluminescent device with carrier blocking layer interposed between two emitting layers

IDEMITSU KOSAN CO9 citations84
US7667228B2Feb 23, 2010

Metal complex compound and organic electroluminescent device using same

IDEMITSU KOSAN CO10 citations84
US7608993B2Oct 27, 2009

Blue organic electroluminescent device comprising dopants having ultraviolet and visible luminescent properties

IDEMITSU KOSAN CO17 citations84
US8035297B2Oct 11, 2011

Organic electroluminescent device with carrier blocking layer interposed between two emitting layers

IDEMITSU KOSAN CO5 citations74
US11069862B2Jul 20, 2021

Material for organic electroluminescence device and organic electroluminescence device using the same

IDEMITSU KOSAN CO1 citations73

NISHIMURA KAZUKI

12 patents
US8154195B2Apr 10, 2012

Organic electroluminescence device and material for organic electroluminescence device

NISHIMURA KAZUKI48 citations98
US9082995B2Jul 14, 2015

Organic EL element and organic EL material-containing solution

NISHIMURA KAZUKI32 citations94
US8779655B2Jul 15, 2014

Organic electroluminescence device and material for organic electroluminescence device

NISHIMURA KAZUKI47 citations94
US8587192B2Nov 19, 2013

Organic electroluminescence device and material for organic electroluminescence device

NISHIMURA KAZUKI38 citations94
US8330350B2Dec 11, 2012

Organic electroluminescence device and material for organic electroluminescence device

NISHIMURA KAZUKI49 citations94
US8211552B2Jul 3, 2012

Organic electroluminescence device

NISHIMURA KAZUKI44 citations94
US8436343B2May 7, 2013

Organic EL device

NISHIMURA KAZUKI32 citations93
US8294142B2Oct 23, 2012

Organic EL device

NISHIMURA KAZUKI37 citations93
US8759819B2Jun 24, 2014

Organic electroluminescence device

NISHIMURA KAZUKI8 citations84
US8574725B2Nov 5, 2013

Organic el element and solution containing organic el material

NISHIMURA KAZUKI12 citations84
US8426036B2Apr 23, 2013

Organic EL device and anthracene derivative

NISHIMURA KAZUKI15 citations84
US8207526B2Jun 26, 2012

Organic EL device

NISHIMURA KAZUKI8 citations84

IWAKUMA TOSHIHIRO

4 patents
US8685543B2Apr 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
US8114530B2Feb 14, 2012

Material for organic electroluminescence device and organic electroluminescence device utilizing the same

IWAKUMA TOSHIHIRO9 citations84
US8080658B2Dec 20, 2011

Material for organic electroluminescent element and organic electroluminescent element employing the same

IWAKUMA TOSHIHIRO7 citations84

KATO TOMOKI

3 patents
US9056870B2Jun 16, 2015

Material for organic electroluminescence device and organic electroluminescence device using the same

KATO TOMOKI7 citations84
US8927118B2Jan 6, 2015

Material for organic electroluminescence device and organic electroluminescence device using the same

KATO TOMOKI4 citations84
US8057919B2Nov 15, 2011

Material for organic electroluminescence device and organic electroluminescence device using the same

KATO TOMOKI11 citations84

KAWAMURA MASAHIRO

2 patents
US8568903B2Oct 29, 2013

Phenanthrene derivative, and material for organic EL element

KAWAMURA MASAHIRO36 citations98
US8221907B2Jul 17, 2012

Chrysene derivative and organic electroluminescent device using the same

KAWAMURA MASAHIRO42 citations94

MATSUURA MASAHIDE

2 patents
US8470455B2Jun 25, 2013

Organic electroluminescent device

MATSUURA MASAHIDE47 citations97
US8105701B2Jan 31, 2012

Organic electroluminescent device

MATSUURA MASAHIDE72 citations97

ENDO JUN

1 patent
US8106391B2Jan 31, 2012

Organic EL device

ENDO JUN25 citations92

YAMAMOTO HITOSHI

1 patent
US9601708B2Mar 21, 2017

Organic light emitting device and materials for use in same

YAMAMOTO HITOSHI14 citations84

YOSHIDA KEI

1 patent
US9266851B2Feb 23, 2016

Fluorene-containing aromatic compound, material for organic electroluminescent element, and organic electroluminescent element using same

YOSHIDA KEI10 citations84

TAKASHIMA YORIYUKI

1 patent
US8940412B2Jan 27, 2015

Material for organic electroluminescent element, and organic electroluminescent element

TAKASHIMA YORIYUKI15 citations83

OGIWARA TOSHINARI

1 patent
US8912531B2Dec 16, 2014

Organic electroluminescent device

OGIWARA TOSHINARI7 citations83

OKUDA FUMIO

1 patent
US8178874B2May 15, 2012

Metal complex compound and organic electroluminescent device using same

OKUDA FUMIO8 citations82

Showing the top 50 of 89 patents by PatentIndex Score.