Inventor · disambiguated record
Hiroki Hirai
Also filed as: HIRAI HIROKI
4 granted patents·9 pending applications·53 citations·filing 2014–2024
69Inventor score
Top patents by PatentIndex Score
13 records- 0195US10374166B2Polycyclic aromatic compoundKWANSEI GAKUIN EDUCATIONAL FOUND·Filed 2014·Granted Aug 6, 2019·52 cites·42 claims
- 0284US12473315B2Polycyclic aromatic compoundKWANSEI GAKUIN EDUCATIONAL FOUND·Filed 2024·Granted Nov 18, 2025·0 cites·24 claims
- 0370US11999818B2High molecular weight triarylamine compound comprising terphenyl structure in molecular main chain and organic electroluminescent element comprising said high molecular weight compoundHODOGAYA CHEMICAL CO LTD·Filed 2019·Granted Jun 4, 2024·1 cites·12 claims
- 0470US2020144513A1Polycyclic aromatic compoundKWANSEI GAKUIN EDUCATIONAL FOUND·Filed 2019·Application pending·0 cites
- 0570US2020144514A1Polycyclic aromatic compoundKWANSEI GAKUIN EDUCATIONAL FOUND·Filed 2019·Application pending·0 cites
- 0670US2020144515A1Polycyclic aromatic compoundKWANSEI GAKUIN EDUCATIONAL FOUND·Filed 2019·Application pending·0 cites
- 0761US2025129059A1Pyrimidine compound and organic electroluminescent elementHODOGAYA CHEMICAL CO LTD·Filed 2023·Application pending·0 cites
- 0855US2023100661A1High molecular weight compound and light emitting diode including said high molecular weight compoundHODOGAYA CHEMICAL CO LTD·Filed 2021·Application pending·0 cites
- 0952US11968882B2High-molecular-weight compound including substituted triarylamine structural unit, and organic electroluminescent deviceHODOGAYA CHEMICAL CO LTD·Filed 2020·Granted Apr 23, 2024·0 cites·21 claims
- 1047US2024260288A1High molecular weight triarylamine compounds, and organic electroluminescent elements containing these high molecular weight compoundsHODOGAYA CHEMICAL CO LTD·Filed 2022·Application pending·0 cites
- 1146US2024327701A1High molecular weight compounds having indeno-dibenzoheterole structure as partial structure, and organic electroluminescent elements comprising said high molecular weight compoundsHODOGAYA CHEMICAL CO LTD·Filed 2022·Application pending·0 cites
- 1244US2023329080A1Thermally-crosslinkable low molecular weight compound-containing composition for light emitting diodeHODOGAYA CHEMICAL CO LTD·Filed 2021·Application pending·0 cites
- 1343US2022352469A1Organic electroluminescence element having organic layer comprising high molecular weight compoundHODOGAYA CHEMICAL CO LTD·Filed 2020·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →