Inventor · disambiguated record
Tomoharu Hayama
Also filed as: HAYAMA Tomoharu
18 granted patents·6 pending applications·141 citations·filing 2013–2019
90Inventor score
Top patents by PatentIndex Score
24 records- 0198US10435350B2Organic electroluminecence deviceIDEMITSU KOSAN CO·Filed 2018·Granted Oct 8, 2019·128 cites·57 claims
- 0284US9902687B2CompoundIDEMITSU KOSAN CO·Filed 2015·Granted Feb 27, 2018·2 cites·25 claims
- 0379US9963429B2Carbazole derivative, material for organic electroluminescent element which comprises same, and organic electroluminescent element and electronic device each manufactured using sameIDEMITSU KOSAN CO·Filed 2014·Granted May 8, 2018·2 cites·24 claims
- 0477US10297761B2Organic electroluminescent elementIDEMITSU KOSAN CO·Filed 2013·Granted May 21, 2019·3 cites·51 claims
- 0575US11654395B2Oxidation catalyst for a diesel engine exhaustJOHNSON MATTHEY JAPAN GODO KAISHA·Filed 2018·Granted May 23, 2023·1 cites·17 claims
- 0675US11207641B2Oxidation catalyst for a diesel engine exhaustJOHNSON MATTHEY JAPAN GODO KAISHA·Filed 2018·Granted Dec 28, 2021·1 cites·35 claims
- 0771US9991445B2Heterocyclic compound, material for organic electroluminescence device including the same, and organic electroluminescence device and electronic equipment employing the sameIDEMITSU KOSAN CO·Filed 2014·Granted Jun 5, 2018·2 cites·19 claims
- 0870US10217954B2Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic deviceIDEMITSU KOSAN CO·Filed 2014·Granted Feb 26, 2019·2 cites·51 claims
- 0963US10118889B2CompoundIDEMITSU KOSAN CO·Filed 2017·Granted Nov 6, 2018·0 cites·44 claims
- 1050US10622569B2Compound, organic electroluminescent element, and electronic deviceIDEMITSU KOSAN CO·Filed 2014·Granted Apr 14, 2020·0 cites·32 claims
- 1150US10205099B2Condensed fluoranthene compound, organic electroluminescence element material including same, organic electroluminescence element using same, and electronic deviceIDEMITSU KOSAN CO·Filed 2014·Granted Feb 12, 2019·0 cites·23 claims
- 1250US9991455B2Amine compound and organic electroluminescent elementIDEMITSU KOSAN CO·Filed 2014·Granted Jun 5, 2018·0 cites·27 claims
- 1349US10396288B2Organic electroluminescent element and electronic deviceIDEMITSU KOSAN CO·Filed 2014·Granted Aug 27, 2019·0 cites·57 claims
- 1449US2016181542A1Anthracene derivative and organic electroluminescent element using sameIDEMITSU KOSAN CO·Filed 2014·Application pending·0 cites
- 1548US10297757B2Compound, material for organic electroluminescent elements, organic electroluminescent element and electronic deviceIDEMITSU KOSAN CO·Filed 2015·Granted May 21, 2019·0 cites·20 claims
- 1648US2016141515A1Material for organic electroluminescent elements, organic electroluminescent element using same, and electronic deviceIDEMITSU KOSAN CO·Filed 2014·Application pending·0 cites
- 1743US2021094019A1Compositions comprising platinum nanoparticle clusters with improved thermostabilityJOHNSON MATTHEY PLC·Filed 2019·Application pending·0 cites
- 1842US2019201845A1Oxidation catalyst for a diesel engine exhaustJOHNSON MATTHEY JAPAN GODO KAISHA·Filed 2018·Application pending·0 cites
- 1940US10211404B2Compound, material for organic electroluminescent elements, organic electroluminescent element and electronic deviceIDEMITSU KOSAN CO·Filed 2015·Granted Feb 19, 2019·0 cites·27 claims
- 2040US2016284998A1Novel compound and organic electroluminescence device obtained by using sameIDEMITSU KOSAN CO·Filed 2015·Application pending·0 cites
- 2139US2017005274A1Compound, organic electroluminescent device material, organic electroluminescent device, and electronic equipmentIDEMITSU KOSAN CO·Filed 2015·Application pending·0 cites
- 2238US10797244B2Compound, material for organic electroluminescent element, organic electroluminescent element, and electronic deviceIDEMITSU KOSAN CO·Filed 2016·Granted Oct 6, 2020·0 cites·26 claims
- 2337US10784446B2Compound, organic electroluminescence element material, organic electroluminescence element and electronic deviceIDEMITSU KOSAN CO·Filed 2015·Granted Sep 22, 2020·0 cites·40 claims
- 2435US9837615B2Nitrogen-containing heterocyclic derivative, organic electroluminescence element material using same, and organic electroluminescence element and electronic device using sameIDEMITSU KOSAN CO·Filed 2015·Granted Dec 5, 2017·0 cites·21 claims
Join the waitlist — get patent alerts
Get an alert when Tomoharu Hayama 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 →