Assignee

OTSUBO AYA

JP·2 granted patents·6 citations·filing 2010–2012

Technology mixB43K2 C09D2 C08K1

Top patents by PatentIndex Score

2 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

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