Inventor · disambiguated record
Ryoji Maeda
Also filed as: MAEDA RYOJI
12 granted patents·8 pending applications·185 citations·filing 1989–2025
89Inventor score
Top patents by PatentIndex Score
20 records- 0196US11482675B1Organic electroluminescence device and electronic apparatusIDEMITSU KOSAN CO·Filed 2021·Granted Oct 25, 2022·7 cites·25 claims
- 0291US11069861B2Mixture, organic electroluminescence device and electronic equipmentIDEMITSU KOSAN CO·Filed 2020·Granted Jul 20, 2021·2 cites·23 claims
- 0391US6435298B1Vehicle rear underside structureNISSAN MOTOR·Filed 1999·Granted Aug 20, 2002·121 cites·3 claims
- 0485US11489128B1Organic electroluminescent element emitting light at high luminous effiency and electronic deviceIDEMITSU KOSAN CO·Filed 2021·Granted Nov 1, 2022·1 cites·32 claims
- 0577US2025295024A1Organic electroluminescence element, composition, powder, electronic equipment, and novel compoundIDEMITSU KOSAN CO·Filed 2025·Application pending·0 cites
- 0672US2022285625A1Organic electroluminescence device and electronic apparatusIDEMITSU KOSAN CO·Filed 2022·Application pending·0 cites
- 0770US8759590B2Indenopyrene compound, organic thin film solar cell material using the same, and organic thin film solar cellIKEDA HIDETSUGU·Filed 2009·Granted Jun 24, 2014·2 cites·9 claims
- 0868US2023047477A1Organic electroluminescence device and electronic apparatusIDEMITSU KOSAN CO·Filed 2019·Application pending·0 cites
- 0967US2022310930A1Organic electroluminescent element emitting light at high luminous efficiency and electronic deviceIDEMITSU KOSAN CO·Filed 2022·Application pending·0 cites
- 1066US11393986B2Mixture, organic electroluminescence device and electronic equipmentIDEMITSU KOSAN CO·Filed 2021·Granted Jul 19, 2022·0 cites·24 claims
- 1157US5145457AVentilation air intake structure of motor vehicleNISSAN MOTOR·Filed 1991·Granted Sep 8, 1992·28 cites·7 claims
- 1253US4886314AFront structure for automotive vehiclesNISSAN MOTOR·Filed 1989·Granted Dec 12, 1989·15 cites·8 claims
- 1352US11903308B2Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic deviceIDEMITSU KOSAN CO·Filed 2019·Granted Feb 13, 2024·0 cites·33 claims
- 1451US2011253206A1Organic solar batteryIDEMITSU KOSAN CO·Filed 2009·Application pending·0 cites
- 1549US12425550B2Intercom device and control systemAIPHONE CO LTD·Filed 2022·Granted Sep 23, 2025·0 cites·8 claims
- 1646US11723266B2Organic electroluminescent element and electronic deviceIDEMITSU KOSAN CO·Filed 2020·Granted Aug 8, 2023·0 cites·20 claims
- 1745US2022384734A1Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic deviceIDEMITSU KOSAN CO·Filed 2020·Application pending·0 cites
- 1842US2014014183A1Organic thin-film solar cell and organic thin-film solar cell moduleMAEDA RYOJI·Filed 2012·Application pending·0 cites
- 1939US2013180590A1Phenanthroline compound, electron transport material obtained from said compound, and organic thin-film solar cell comprising said compoundYASUKAWA KEIICHI·Filed 2011·Application pending·0 cites
- 2038US5269583AFront end structure of vehicle bodyNISSAN MOTOR·Filed 1992·Granted Dec 14, 1993·9 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →