Inventor
MIZUTANI SAYAKA
JP28 patents
⚠️ This page may combine multiple inventors who share the name “MIZUTANI SAYAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IDEMITSU KOSAN CO
17 patentsUS9209406B2Dec 8, 2015
Aromatic heterocyclic derivative, material for organic electroluminescent element, and organic electroluminescent element
IDEMITSU KOSAN CO25 citations92
US11374176B2Jun 28, 2022
Aromatic heterocyclic derivative, material for organic electroluminescent element, and organic electroluminescent element
IDEMITSU KOSAN CO3 citations84
US10418563B2Sep 17, 2019
Aromatic heterocyclic derivative, material for organic electroluminescent element, and organic electroluminescent element
IDEMITSU KOSAN CO4 citations84
US9893296B2Feb 13, 2018
Aromatic heterocyclic derivative, material for organic electroluminescent element, and organic electroluminescent element
IDEMITSU KOSAN CO7 citations84
US9847501B2Dec 19, 2017
Aromatic heterocyclic derivative, material for organic electroluminescent element, and organic electroluminescent element
IDEMITSU KOSAN CO12 citations84
US9397307B2Jul 19, 2016
Organic electroluminescence device and electronic device
IDEMITSU KOSAN CO8 citations84
US12089492B2Sep 10, 2024
Aromatic heterocyclic derivative, material for organic electroluminescent element, and organic electroluminescent element
IDEMITSU KOSAN CO2 citations73
US10510964B2Dec 17, 2019
Compound, organic electroluminescence device material, organic electroluminescence device and electronic device
IDEMITSU KOSAN CO2 citations73
US10199580B2Feb 5, 2019
Aromatic heterocyclic derivative, material for organic electroluminescent element, and organic electroluminescent element
IDEMITSU KOSAN CO3 citations73
US9871206B2Jan 16, 2018
Compound, organic electroluminescence device material, organic electroluminescence device and electronic device
IDEMITSU KOSAN CO4 citations73
US12516042B2Jan 6, 2026
Aromatic heterocyclic derivative, material for organic electroluminescent element, and organic electroluminescent element
IDEMITSU KOSAN CO0 citations62
USRE49237EOct 4, 2022
Organic electroluminescence device and electronic device
IDEMITSU KOSAN CO0 citations62
USRE47763EDec 10, 2019
Organic electroluminescence device and electronic device
IDEMITSU KOSAN CO1 citations62
US12312317B2May 27, 2025
Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device
IDEMITSU KOSAN CO0 citations61
US9923146B2Mar 20, 2018
Aromatic amine derivative and organic electroluminescent element using same
IDEMITSU KOSAN CO0 citations52
US12543494B2Feb 3, 2026
Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device
IDEMITSU KOSAN CO0 citations49
US9559311B2Jan 31, 2017
Anthracene derivative, organic-electroluminescence-device material, organic electroluminescence device, and electronic equipment
IDEMITSU KOSAN CO0 citations41
BANYU PHARMA CO LTD
4 patentsUS7547693B2Jun 16, 2009
Piperidine derivative
BANYU PHARMA CO LTD14 citations82
US7732456B2Jun 8, 2010
Pyridone derivative
BANYU PHARMA CO LTD3 citations62
US7834182B2Nov 16, 2010
Piperidine derivative
BANYU PHARMA CO LTD0 citations51
US7531668B2May 12, 2009
2-arylcarboxamide-nitrogenous heterocycle compound
BANYU PHARMA CO LTD1 citations50