Inventor
TAKASHIMA YORIYUKI
JP27 patents
⚠️ This page may combine multiple inventors who share the name “TAKASHIMA YORIYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IDEMITSU KOSAN CO
16 patentsUS8025815B2Sep 27, 2011
Naphthalene derivative, material for organic electroluminescence device, and organic electroluminescence device using the same
IDEMITSU KOSAN CO46 citations98
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
US8039129B2Oct 18, 2011
Organic electroluminescence device and material for organic electroluminescence device
IDEMITSU KOSAN CO8 citations84
US8022253B2Sep 20, 2011
Aromatic amine derivative and organic electroluminescence device using the same
IDEMITSU KOSAN CO8 citations84
US7838130B2Nov 23, 2010
Aminodibenzofluorene derivative and organic electroluminescence device using the same
IDEMITSU KOSAN CO7 citations74
US8039127B2Oct 18, 2011
Organic electroluminescence device and material for organic electroluminescence device
IDEMITSU KOSAN CO6 citations63
US5863866AJan 26, 1999
Pyrazole derivatives
IDEMITSU KOSAN CO5 citations63
US5849926ADec 15, 1998
Pyrazole derivatives and herbicides containing the same
IDEMITSU KOSAN CO4 citations62
US11390825B2Jul 19, 2022
Dispersing agent for lubricating oil, method for producing same, and lubricating oil composition
IDEMITSU KOSAN CO1 citations61
US8367869B2Feb 5, 2013
Aromatic amine derivative and organic electroluminescence device using the same
IDEMITSU KOSAN CO1 citations52
US7851073B2Dec 14, 2010
Organic electroluminescence device and material for organic electroluminescence device
IDEMITSU KOSAN CO1 citations52
US6037312AMar 14, 2000
Isoxazole derivatives
IDEMITSU KOSAN CO1 citations52
US11905486B2Feb 20, 2024
Viscosity index improver composition and lubricating oil composition
IDEMITSU KOSAN CO0 citations50
US9790450B2Oct 17, 2017
Lubricating oil composition for engine made of aluminum alloy and lubrication method
IDEMITSU KOSAN CO0 citations39
NISHIMURA KAZUKI
5 patentsUS8154195B2Apr 10, 2012
Organic electroluminescence device and material for organic electroluminescence device
NISHIMURA KAZUKI48 citations98
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
TAKASHIMA YORIYUKI
3 patentsUS9214636B2Dec 15, 2015
Organic electroluminescence device
TAKASHIMA YORIYUKI9 citations83
US8940412B2Jan 27, 2015
Material for organic electroluminescent element, and organic electroluminescent element
TAKASHIMA YORIYUKI15 citations83
US9120748B2Sep 1, 2015
Fluoranthene compound, organic electroluminescence device using the same, and solution containing organic electroluminescence material
TAKASHIMA YORIYUKI4 citations72