Inventor · disambiguated record
Aya Otsubo
Also filed as: OTSUBO AYA
2 granted patents·1 pending application·6 citations·filing 2010–2016
49Inventor score
Technology areasC09D
Top patents by PatentIndex Score
3 records- 0181US9365732B2Oily ink composition for ballpoint pensOTSUBO AYA·Filed 2012·Granted Jun 14, 2016·5 cites·6 claims
- 0261US8771410B2Ink for ballpoint pens and ballpoint pen using sameOTSUBO AYA·Filed 2010·Granted Jul 8, 2014·1 cites·10 claims
- 0335US2021222017A1Glittering writing/drawing material composition and writing/drawing instrumentPENTEL KK·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →