Inventor · disambiguated record
Keiichi Yasukawa
Also filed as: YASUKAWA KEIICHI
8 granted patents·12 pending applications·1 citations·filing 2011–2023
70Inventor score
Top patents by PatentIndex Score
20 records- 0172US11201297B2Organic electroluminescence device and electronic deviceIDEMITSU KOSAN CO·Filed 2019·Granted Dec 14, 2021·1 cites·36 claims
- 0266US2022223798A1Organic electroluminescent element and electronic deviceIDEMITSU KOSAN CO·Filed 2021·Application pending·0 cites
- 0365US2024057478A1Organic electroluminescence element and electronic deviceIDEMITSU KOSAN CO·Filed 2021·Application pending·0 cites
- 0462US12446463B2Organic electroluminescent element and electronic deviceIDEMITSU KOSAN CO·Filed 2023·Granted Oct 14, 2025·0 cites·22 claims
- 0560US12435269B2Organic electroluminescent element and electronic applianceIDEMITSU KOSAN CO·Filed 2021·Granted Oct 7, 2025·0 cites·26 claims
- 0654US2024407244A1Mixed powder for an organic electroluminescence device and method for producing the same, method for fabricating organic electroluminescence device by using the mixed powder, method for selecting compounds in the mixed powder, and composition for vacuum depositionIDEMITSU KOSAN CO·Filed 2022·Application pending·0 cites
- 0753US2025250482A1Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic deviceIDEMITSU KOSAN CO·Filed 2023·Application pending·0 cites
- 0853US2025255087A1Compound, organic electroluminescent element and electronic deviceIDEMITSU KOSAN CO·Filed 2023·Application pending·0 cites
- 0953US2024215440A1Organic electroluminescent element and electronic deviceIDEMITSU KOSAN CO·Filed 2022·Application pending·0 cites
- 1052US2024397816A1Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic deviceIDEMITSU KOSAN CO·Filed 2022·Application pending·0 cites
- 1151US2024215447A1Organic electroluminescent element and electronic deviceIDEMITSU KOSAN CO·Filed 2022·Application pending·0 cites
- 1249US12421450B2Compounds, materials for organic electroluminescent devices, organic electroluminescent devices, and electronic devicesIDEMITSU KOSAN CO·Filed 2021·Granted Sep 23, 2025·0 cites·44 claims
- 1348US12200961B2Organic electroluminescence element, display device, and electronic apparatusIDEMITSU KOSAN CO·Filed 2019·Granted Jan 14, 2025·0 cites·13 claims
- 1448US2022388991A1Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic deviceIDEMITSU KOSAN CO·Filed 2020·Application pending·0 cites
- 1543US11482681B2Compound, material for organic electroluminescence element, organic electroluminescence element, and electronic deviceIDEMITSU KOSAN CO·Filed 2019·Granted Oct 25, 2022·0 cites·36 claims
- 1642US12274168B2Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic applianceIDEMITSU KOSAN CO·Filed 2019·Granted Apr 8, 2025·0 cites·37 claims
- 1742US11944009B2Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic deviceIDEMITSU KOSAN CO·Filed 2019·Granted Mar 26, 2024·0 cites·29 claims
- 1841US2013174910A1Indenoperylene compound, material for organic thin-film photovotaic cell containing indenoperylene derivative and organic thin film photovotaic cell using sameYASUKAWA KEIICHI·Filed 2011·Application pending·0 cites
- 1940US2021020846A1Organic electroluminescent element and electronic deviceIDEMITSU KOSAN CO·Filed 2019·Application pending·0 cites
- 2039US2013180590A1Phenanthroline compound, electron transport material obtained from said compound, and organic thin-film solar cell comprising said compoundYASUKAWA KEIICHI·Filed 2011·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Keiichi Yasukawa files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →