Inventor · disambiguated record

Ikuo Takagishi

Also filed as: TAKAGISHI IKUO

2 granted patents·7 citations·filing 1988–2010

50Inventor score

Technology areasB43K C09D

Files withOTSUBO AYA1 PENTEL KK1

Top patents by PatentIndex Score

2 records

0161US8771410B2Ink for ballpoint pens and ballpoint pen using sameOTSUBO AYA·Filed 2010·Granted Jul 8, 2014·1 cites·10 claims
0229US4966480AWashing liquid cartridge for refill ink type writing instrumentPENTEL KK·Filed 1988·Granted Oct 30, 1990·6 cites·5 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →