Inventor · disambiguated record

Yu Tsukamoto

Also filed as: TSUKAMOTO YU

1 granted patent·0 citations·filing 2009–2009

11Inventor score

Technology areasC09D

Files withYAMAGUCHI MAYUMI1

Top patents by PatentIndex Score

1 record

0157US8137019B2Ink composition for writing instrument and writing instrumentYAMAGUCHI MAYUMI·Filed 2009·Granted Mar 20, 2012·0 cites·16 claims

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