Inventor · disambiguated record
Sawa Izumi
Also filed as: IZUMI SAWA
4 granted patents·2 pending applications·5 citations·filing 2009–2013
63Inventor score
Top patents by PatentIndex Score
6 records- 0173US8624228B2Compound having pyridoindole ring structure bonded with substituted pyridyl group, and organic electroluminescent deviceYOKOYAMA NORIMASA·Filed 2009·Granted Jan 7, 2014·1 cites·14 claims
- 0269US8586210B2Compound having substituted anthracene ring structure and pyridoindole ring structure and organic electroluminescence deviceYOKOYAMA NORIMASA·Filed 2009·Granted Nov 19, 2013·3 cites·8 claims
- 0362US9564600B2Compound having an indolocarbazole ring structure and organic electroluminescent deviceYOKOYAMA NORIMASA·Filed 2012·Granted Feb 7, 2017·1 cites·3 claims
- 0454US2013341604A1Compound having substituted anthracene ring structure and pyridoindole ring structure and organic electroluminescence deviceHODOGAYA CHEMICAL CO LTD·Filed 2013·Application pending·0 cites
- 0549US8377573B2Compound having substituted pyridyl group and pyridoindole ring structure linked through phenylene group, and organic electroluminescent deviceHODOGAYA CHEMICAL CO LTD·Filed 2009·Granted Feb 19, 2013·0 cites·20 claims
- 0641US2013112950A1Compound having carbazole ring structure, and organic electroluminescent deviceYOKOYAMA NORIMASA·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →