Inventor
SHIOMI TAKUSHI
JP24 patents
⚠️ This page may combine multiple inventors who share the name “SHIOMI TAKUSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IDEMITSU KOSAN CO
22 patentsUS12302757B2May 13, 2025
Organic electroluminescence element and electronic device
IDEMITSU KOSAN CO0 citations62
US12250883B2Mar 11, 2025
Organic electroluminescence element and electronic device
IDEMITSU KOSAN CO0 citations62
US12075699B2Aug 27, 2024
Organic electroluminescence element and electronic device
IDEMITSU KOSAN CO0 citations62
US12058930B2Aug 6, 2024
Organic electroluminescence device and electronic apparatus
IDEMITSU KOSAN CO1 citations62
US12029120B2Jul 2, 2024
Organic electroluminescence element and electronic device
IDEMITSU KOSAN CO0 citations62
US12435269B2Oct 7, 2025
Organic electroluminescent element and electronic appliance
IDEMITSU KOSAN CO0 citations61
US12486452B2Dec 2, 2025
Organic electroluminescent element and electronic device
IDEMITSU KOSAN CO0 citations51
US12157747B2Dec 3, 2024
Organic electroluminescent element, compound, material for organic electroluminescent element, and electronic device
IDEMITSU KOSAN CO0 citations51
US12575319B2Mar 10, 2026
Organic electroluminescence device and electronic device
IDEMITSU KOSAN CO0 citations50
US12127478B2Oct 22, 2024
Organic electroluminescence device and electronic device
IDEMITSU KOSAN CO0 citations50
US11765972B2Sep 19, 2023
Compound and organic electroluminescence device using the same
IDEMITSU KOSAN CO0 citations50
US11691983B2Jul 4, 2023
Specifically substituted benzofuro- and benzothienoquinolines for organic light emitting diodes
IDEMITSU KOSAN CO0 citations50
US11279709B2Mar 22, 2022
Specifically substituted aza-dibenzofurans and aza-dibenzothiophenes for organic electronic devices
IDEMITSU KOSAN CO0 citations50
US11289661B2Mar 29, 2022
Nitrogen-containing heterocyclic compounds for organic light emitting devices
IDEMITSU KOSAN CO0 citations49
US11944009B2Mar 26, 2024
Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic device
IDEMITSU KOSAN CO0 citations48
US11482681B2Oct 25, 2022
Compound, material for organic electroluminescence element, organic electroluminescence element, and electronic device
IDEMITSU KOSAN CO0 citations48
US12274168B2Apr 8, 2025
Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic appliance
IDEMITSU KOSAN CO0 citations47
US9997719B2Jun 12, 2018
Material for organic electroluminescence device and organic electroluminescence device
IDEMITSU KOSAN CO0 citations42
US10797244B2Oct 6, 2020
Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic device
IDEMITSU KOSAN CO0 citations41
US10461258B2Oct 29, 2019
Compound
IDEMITSU KOSAN CO0 citations41
US9450194B2Sep 20, 2016
Heteroarene derivative and organic electroluminescence device using the same
IDEMITSU KOSAN CO0 citations41
US9496508B2Nov 15, 2016
Material for organic electroluminescent element and organic electroluminescent element using same
IDEMITSU KOSAN CO0 citations40