Inventor · disambiguated record
Ryohei Oka
Also filed as: OKA RYOHEI
2 granted patents·4 citations·filing 2012–2015
45Inventor score
Top patents by PatentIndex Score
2 records- 0181US9815991B2Ink composition for inkjet recording, method for producing printed material, and printing methodDNP FINE CHEMICALS CO LTD·Filed 2015·Granted Nov 14, 2017·3 cites·6 claims
- 0264US9154756B2Projection apparatus and hologram recording mediumDAINIPPON PRINTING CO LTD·Filed 2012·Granted Oct 6, 2015·1 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →